if_ipw.c revision 146498
1145247Sdamien/* $FreeBSD: head/sys/dev/ipw/if_ipw.c 146498 2005-05-22 18:31:08Z 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/ipw/if_ipw.c 146498 2005-05-22 18:31:08Z damien $"); 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); 217145247Sdamien struct ifnet *ifp = &sc->sc_arp.ac_if; 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 } 266145247Sdamien 267145247Sdamien ifp->if_softc = sc; 268145247Sdamien if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 269145247Sdamien ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 270145247Sdamien ifp->if_init = ipw_init; 271145247Sdamien ifp->if_ioctl = ipw_ioctl; 272145247Sdamien ifp->if_start = ipw_start; 273145247Sdamien ifp->if_watchdog = ipw_watchdog; 274145247Sdamien IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); 275145247Sdamien ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN; 276145247Sdamien IFQ_SET_READY(&ifp->if_snd); 277145247Sdamien 278145247Sdamien ic->ic_ifp = ifp; 279145247Sdamien ic->ic_phytype = IEEE80211_T_DS; 280145247Sdamien ic->ic_opmode = IEEE80211_M_STA; 281145247Sdamien ic->ic_state = IEEE80211_S_INIT; 282145247Sdamien 283145247Sdamien /* set device capabilities */ 284145247Sdamien ic->ic_caps = IEEE80211_C_SHPREAMBLE | IEEE80211_C_TXPMGT | 285145247Sdamien IEEE80211_C_PMGT | IEEE80211_C_IBSS | IEEE80211_C_MONITOR | 286145247Sdamien IEEE80211_C_WPA; 287145247Sdamien 288145247Sdamien /* read MAC address from EEPROM */ 289145247Sdamien val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 0); 290145247Sdamien ic->ic_myaddr[0] = val >> 8; 291145247Sdamien ic->ic_myaddr[1] = val & 0xff; 292145247Sdamien val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 1); 293145247Sdamien ic->ic_myaddr[2] = val >> 8; 294145247Sdamien ic->ic_myaddr[3] = val & 0xff; 295145247Sdamien val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 2); 296145247Sdamien ic->ic_myaddr[4] = val >> 8; 297145247Sdamien ic->ic_myaddr[5] = val & 0xff; 298145247Sdamien 299145247Sdamien /* set supported .11b rates */ 300145247Sdamien ic->ic_sup_rates[IEEE80211_MODE_11B] = ipw_rateset_11b; 301145247Sdamien 302145247Sdamien /* set supported .11b channels (read from EEPROM) */ 303145247Sdamien if ((val = ipw_read_prom_word(sc, IPW_EEPROM_CHANNEL_LIST)) == 0) 304145247Sdamien val = 0x7ff; /* default to channels 1-11 */ 305145247Sdamien val <<= 1; 306145247Sdamien for (i = 1; i < 16; i++) { 307145247Sdamien if (val & (1 << i)) { 308145247Sdamien ic->ic_channels[i].ic_freq = 309145247Sdamien ieee80211_ieee2mhz(i, IEEE80211_CHAN_B); 310145247Sdamien ic->ic_channels[i].ic_flags = IEEE80211_CHAN_B; 311145247Sdamien } 312145247Sdamien } 313145247Sdamien 314145247Sdamien /* check support for radio transmitter switch in EEPROM */ 315145247Sdamien if (!(ipw_read_prom_word(sc, IPW_EEPROM_RADIO) & 8)) 316145247Sdamien sc->flags |= IPW_FLAG_HAS_RADIO_SWITCH; 317145247Sdamien 318145247Sdamien ieee80211_ifattach(ic); 319145247Sdamien /* override state transition machine */ 320145247Sdamien sc->sc_newstate = ic->ic_newstate; 321145247Sdamien ic->ic_newstate = ipw_newstate; 322145247Sdamien ieee80211_media_init(ic, ipw_media_change, ipw_media_status); 323145247Sdamien 324145247Sdamien bpfattach2(ifp, DLT_IEEE802_11_RADIO, 325145247Sdamien sizeof (struct ieee80211_frame) + 64, &sc->sc_drvbpf); 326145247Sdamien 327145247Sdamien sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 328145247Sdamien sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 329145247Sdamien sc->sc_rxtap.wr_ihdr.it_present = htole32(IPW_RX_RADIOTAP_PRESENT); 330145247Sdamien 331145247Sdamien sc->sc_txtap_len = sizeof sc->sc_txtapu; 332145247Sdamien sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 333145247Sdamien sc->sc_txtap.wt_ihdr.it_present = htole32(IPW_TX_RADIOTAP_PRESENT); 334145247Sdamien 335145247Sdamien /* 336145247Sdamien * Add a few sysctl knobs. 337145247Sdamien */ 338145247Sdamien sc->dwelltime = 100; 339145247Sdamien 340145247Sdamien SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev), 341145247Sdamien SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "radio", 342145247Sdamien CTLTYPE_INT | CTLFLAG_RD, sc, 0, ipw_sysctl_radio, "I", 343145247Sdamien "radio transmitter switch state (0=off, 1=on)"); 344145247Sdamien 345145247Sdamien#ifdef IPW_DEBUG 346145247Sdamien SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev), 347145247Sdamien SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "stats", 348145247Sdamien CTLTYPE_OPAQUE | CTLFLAG_RD, sc, 0, ipw_sysctl_stats, "S", 349145247Sdamien "statistics"); 350145247Sdamien#endif 351145247Sdamien 352145247Sdamien SYSCTL_ADD_INT(device_get_sysctl_ctx(dev), 353145247Sdamien SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "dwell", 354145247Sdamien CTLFLAG_RW, &sc->dwelltime, 0, 355145247Sdamien "channel dwell time (ms) for AP/station scanning"); 356145247Sdamien 357145247Sdamien /* 358145247Sdamien * Hook our interrupt after all initialization is complete. 359145247Sdamien */ 360145247Sdamien error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE, 361145247Sdamien ipw_intr, sc, &sc->sc_ih); 362145247Sdamien if (error != 0) { 363145247Sdamien device_printf(dev, "could not set up interrupt\n"); 364145247Sdamien goto fail; 365145247Sdamien } 366145247Sdamien 367145247Sdamien if (bootverbose) 368145247Sdamien ieee80211_announce(ic); 369145247Sdamien 370145247Sdamien return 0; 371145247Sdamien 372145247Sdamienfail: ipw_detach(dev); 373145247Sdamien return ENXIO; 374145247Sdamien} 375145247Sdamien 376145247Sdamienstatic int 377145247Sdamienipw_detach(device_t dev) 378145247Sdamien{ 379145247Sdamien struct ipw_softc *sc = device_get_softc(dev); 380145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 381145247Sdamien struct ifnet *ifp = ic->ic_ifp; 382145247Sdamien 383145247Sdamien IPW_LOCK(sc); 384145247Sdamien 385145247Sdamien ipw_stop(sc); 386145247Sdamien ipw_free_firmware(sc); 387145247Sdamien 388145247Sdamien IPW_UNLOCK(sc); 389145247Sdamien 390145247Sdamien bpfdetach(ifp); 391145247Sdamien ieee80211_ifdetach(ic); 392145247Sdamien 393145247Sdamien ipw_release(sc); 394145247Sdamien 395145247Sdamien if (sc->irq != NULL) { 396145247Sdamien bus_teardown_intr(dev, sc->irq, sc->sc_ih); 397145247Sdamien bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq); 398145247Sdamien } 399145247Sdamien 400145247Sdamien if (sc->mem != NULL) 401145247Sdamien bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem); 402145247Sdamien 403145247Sdamien mtx_destroy(&sc->sc_mtx); 404145247Sdamien 405145247Sdamien return 0; 406145247Sdamien} 407145247Sdamien 408145247Sdamienstatic int 409145247Sdamienipw_dma_alloc(struct ipw_softc *sc) 410145247Sdamien{ 411145247Sdamien struct ipw_soft_bd *sbd; 412145247Sdamien struct ipw_soft_hdr *shdr; 413145247Sdamien struct ipw_soft_buf *sbuf; 414145247Sdamien bus_addr_t physaddr; 415145247Sdamien int error, i; 416145247Sdamien 417145247Sdamien /* 418145247Sdamien * Allocate and map tx ring. 419145247Sdamien */ 420145247Sdamien error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT, 421145247Sdamien BUS_SPACE_MAXADDR, NULL, NULL, IPW_TBD_SZ, 1, IPW_TBD_SZ, 0, NULL, 422145247Sdamien NULL, &sc->tbd_dmat); 423145247Sdamien if (error != 0) { 424145247Sdamien device_printf(sc->sc_dev, "could not create tx ring DMA tag\n"); 425145247Sdamien goto fail; 426145247Sdamien } 427145247Sdamien 428145247Sdamien error = bus_dmamem_alloc(sc->tbd_dmat, (void **)&sc->tbd_list, 429145247Sdamien BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->tbd_map); 430145247Sdamien if (error != 0) { 431145247Sdamien device_printf(sc->sc_dev, 432145247Sdamien "could not allocate tx ring DMA memory\n"); 433145247Sdamien goto fail; 434145247Sdamien } 435145247Sdamien 436145247Sdamien error = bus_dmamap_load(sc->tbd_dmat, sc->tbd_map, sc->tbd_list, 437145247Sdamien IPW_TBD_SZ, ipw_dma_map_addr, &sc->tbd_phys, 0); 438145247Sdamien if (error != 0) { 439145247Sdamien device_printf(sc->sc_dev, "could not map tx ring DMA memory\n"); 440145247Sdamien goto fail; 441145247Sdamien } 442145247Sdamien 443145247Sdamien /* 444145247Sdamien * Allocate and map rx ring. 445145247Sdamien */ 446145247Sdamien error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT, 447145247Sdamien BUS_SPACE_MAXADDR, NULL, NULL, IPW_RBD_SZ, 1, IPW_RBD_SZ, 0, NULL, 448145247Sdamien NULL, &sc->rbd_dmat); 449145247Sdamien if (error != 0) { 450145247Sdamien device_printf(sc->sc_dev, "could not create rx ring DMA tag\n"); 451145247Sdamien goto fail; 452145247Sdamien } 453145247Sdamien 454145247Sdamien error = bus_dmamem_alloc(sc->rbd_dmat, (void **)&sc->rbd_list, 455145247Sdamien BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->rbd_map); 456145247Sdamien if (error != 0) { 457145247Sdamien device_printf(sc->sc_dev, 458145247Sdamien "could not allocate rx ring DMA memory\n"); 459145247Sdamien goto fail; 460145247Sdamien } 461145247Sdamien 462145247Sdamien error = bus_dmamap_load(sc->rbd_dmat, sc->rbd_map, sc->rbd_list, 463145247Sdamien IPW_RBD_SZ, ipw_dma_map_addr, &sc->rbd_phys, 0); 464145247Sdamien if (error != 0) { 465145247Sdamien device_printf(sc->sc_dev, "could not map rx ring DMA memory\n"); 466145247Sdamien goto fail; 467145247Sdamien } 468145247Sdamien 469145247Sdamien /* 470145247Sdamien * Allocate and map status ring. 471145247Sdamien */ 472145247Sdamien error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT, 473145247Sdamien BUS_SPACE_MAXADDR, NULL, NULL, IPW_STATUS_SZ, 1, IPW_STATUS_SZ, 0, 474145247Sdamien NULL, NULL, &sc->status_dmat); 475145247Sdamien if (error != 0) { 476145247Sdamien device_printf(sc->sc_dev, 477145247Sdamien "could not create status ring DMA tag\n"); 478145247Sdamien goto fail; 479145247Sdamien } 480145247Sdamien 481145247Sdamien error = bus_dmamem_alloc(sc->status_dmat, (void **)&sc->status_list, 482145247Sdamien BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->status_map); 483145247Sdamien if (error != 0) { 484145247Sdamien device_printf(sc->sc_dev, 485145247Sdamien "could not allocate status ring DMA memory\n"); 486145247Sdamien goto fail; 487145247Sdamien } 488145247Sdamien 489145247Sdamien error = bus_dmamap_load(sc->status_dmat, sc->status_map, 490145247Sdamien sc->status_list, IPW_STATUS_SZ, ipw_dma_map_addr, &sc->status_phys, 491145247Sdamien 0); 492145247Sdamien if (error != 0) { 493145247Sdamien device_printf(sc->sc_dev, 494145247Sdamien "could not map status ring DMA memory\n"); 495145247Sdamien goto fail; 496145247Sdamien } 497145247Sdamien 498145247Sdamien /* 499145247Sdamien * Allocate command DMA map. 500145247Sdamien */ 501145247Sdamien error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT, 502145247Sdamien BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_cmd), 1, 503145247Sdamien sizeof (struct ipw_cmd), 0, NULL, NULL, &sc->cmd_dmat); 504145247Sdamien if (error != 0) { 505145247Sdamien device_printf(sc->sc_dev, "could not create command DMA tag\n"); 506145247Sdamien goto fail; 507145247Sdamien } 508145247Sdamien 509145247Sdamien error = bus_dmamap_create(sc->cmd_dmat, 0, &sc->cmd_map); 510145247Sdamien if (error != 0) { 511145247Sdamien device_printf(sc->sc_dev, 512145247Sdamien "could not create command DMA map\n"); 513145247Sdamien goto fail; 514145247Sdamien } 515145247Sdamien 516145247Sdamien /* 517145247Sdamien * Allocate headers DMA maps. 518145247Sdamien */ 519145247Sdamien error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT, 520145247Sdamien BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_hdr), 1, 521145247Sdamien sizeof (struct ipw_hdr), 0, NULL, NULL, &sc->hdr_dmat); 522145247Sdamien if (error != 0) { 523145247Sdamien device_printf(sc->sc_dev, "could not create header DMA tag\n"); 524145247Sdamien goto fail; 525145247Sdamien } 526145247Sdamien 527145247Sdamien SLIST_INIT(&sc->free_shdr); 528145247Sdamien for (i = 0; i < IPW_NDATA; i++) { 529145247Sdamien shdr = &sc->shdr_list[i]; 530145247Sdamien error = bus_dmamap_create(sc->hdr_dmat, 0, &shdr->map); 531145247Sdamien if (error != 0) { 532145247Sdamien device_printf(sc->sc_dev, 533145247Sdamien "could not create header DMA map\n"); 534145247Sdamien goto fail; 535145247Sdamien } 536145247Sdamien SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next); 537145247Sdamien } 538145247Sdamien 539145247Sdamien /* 540145247Sdamien * Allocate tx buffers DMA maps. 541145247Sdamien */ 542145247Sdamien error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT, 543145247Sdamien BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, IPW_MAX_NSEG, MCLBYTES, 0, 544145247Sdamien NULL, NULL, &sc->txbuf_dmat); 545145247Sdamien if (error != 0) { 546145247Sdamien device_printf(sc->sc_dev, "could not create tx DMA tag\n"); 547145247Sdamien goto fail; 548145247Sdamien } 549145247Sdamien 550145247Sdamien SLIST_INIT(&sc->free_sbuf); 551145247Sdamien for (i = 0; i < IPW_NDATA; i++) { 552145247Sdamien sbuf = &sc->tx_sbuf_list[i]; 553145247Sdamien error = bus_dmamap_create(sc->txbuf_dmat, 0, &sbuf->map); 554145247Sdamien if (error != 0) { 555145247Sdamien device_printf(sc->sc_dev, 556145247Sdamien "could not create tx DMA map\n"); 557145247Sdamien goto fail; 558145247Sdamien } 559145247Sdamien SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next); 560145247Sdamien } 561145247Sdamien 562145247Sdamien /* 563145247Sdamien * Initialize tx ring. 564145247Sdamien */ 565145247Sdamien for (i = 0; i < IPW_NTBD; i++) { 566145247Sdamien sbd = &sc->stbd_list[i]; 567145247Sdamien sbd->bd = &sc->tbd_list[i]; 568145247Sdamien sbd->type = IPW_SBD_TYPE_NOASSOC; 569145247Sdamien } 570145247Sdamien 571145247Sdamien /* 572145247Sdamien * Pre-allocate rx buffers and DMA maps. 573145247Sdamien */ 574145247Sdamien error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT, 575145247Sdamien BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, IPW_NRBD, MCLBYTES, 0, 576145247Sdamien NULL, NULL, &sc->rxbuf_dmat); 577145247Sdamien if (error != 0) { 578145247Sdamien device_printf(sc->sc_dev, "could not create rx DMA tag\n"); 579145247Sdamien goto fail; 580145247Sdamien } 581145247Sdamien 582145247Sdamien for (i = 0; i < IPW_NRBD; i++) { 583145247Sdamien sbd = &sc->srbd_list[i]; 584145247Sdamien sbuf = &sc->rx_sbuf_list[i]; 585145247Sdamien sbd->bd = &sc->rbd_list[i]; 586145247Sdamien 587145247Sdamien sbuf->m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 588145247Sdamien if (sbuf->m == NULL) { 589145247Sdamien device_printf(sc->sc_dev, 590145247Sdamien "could not allocate rx mbuf\n"); 591145247Sdamien error = ENOMEM; 592145247Sdamien goto fail; 593145247Sdamien } 594145247Sdamien 595145247Sdamien error = bus_dmamap_create(sc->rxbuf_dmat, 0, &sbuf->map); 596145247Sdamien if (error != 0) { 597145247Sdamien device_printf(sc->sc_dev, 598145247Sdamien "could not create rx DMA map\n"); 599145247Sdamien goto fail; 600145247Sdamien } 601145247Sdamien 602145247Sdamien error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map, 603145247Sdamien mtod(sbuf->m, void *), MCLBYTES, ipw_dma_map_addr, 604145247Sdamien &physaddr, 0); 605145247Sdamien if (error != 0) { 606145247Sdamien device_printf(sc->sc_dev, 607145247Sdamien "could not map rx DMA memory\n"); 608145247Sdamien goto fail; 609145247Sdamien } 610145247Sdamien 611145247Sdamien sbd->type = IPW_SBD_TYPE_DATA; 612145247Sdamien sbd->priv = sbuf; 613145247Sdamien sbd->bd->physaddr = htole32(physaddr); 614145247Sdamien sbd->bd->len = htole32(MCLBYTES); 615145247Sdamien } 616145247Sdamien 617145247Sdamien bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE); 618145247Sdamien 619145247Sdamien return 0; 620145247Sdamien 621145247Sdamienfail: ipw_release(sc); 622145247Sdamien return error; 623145247Sdamien} 624145247Sdamien 625145247Sdamienstatic void 626145247Sdamienipw_release(struct ipw_softc *sc) 627145247Sdamien{ 628145247Sdamien struct ipw_soft_buf *sbuf; 629145247Sdamien int i; 630145247Sdamien 631145247Sdamien if (sc->tbd_dmat != NULL) { 632145247Sdamien if (sc->stbd_list != NULL) { 633145247Sdamien bus_dmamap_unload(sc->tbd_dmat, sc->tbd_map); 634145247Sdamien bus_dmamem_free(sc->tbd_dmat, sc->tbd_list, 635145247Sdamien sc->tbd_map); 636145247Sdamien } 637145247Sdamien bus_dma_tag_destroy(sc->tbd_dmat); 638145247Sdamien } 639145247Sdamien 640145247Sdamien if (sc->rbd_dmat != NULL) { 641145247Sdamien if (sc->rbd_list != NULL) { 642145247Sdamien bus_dmamap_unload(sc->rbd_dmat, sc->rbd_map); 643145247Sdamien bus_dmamem_free(sc->rbd_dmat, sc->rbd_list, 644145247Sdamien sc->rbd_map); 645145247Sdamien } 646145247Sdamien bus_dma_tag_destroy(sc->rbd_dmat); 647145247Sdamien } 648145247Sdamien 649145247Sdamien if (sc->status_dmat != NULL) { 650145247Sdamien if (sc->status_list != NULL) { 651145247Sdamien bus_dmamap_unload(sc->status_dmat, sc->status_map); 652145247Sdamien bus_dmamem_free(sc->status_dmat, sc->status_list, 653145247Sdamien sc->status_map); 654145247Sdamien } 655145247Sdamien bus_dma_tag_destroy(sc->status_dmat); 656145247Sdamien } 657145247Sdamien 658145247Sdamien for (i = 0; i < IPW_NTBD; i++) 659145247Sdamien ipw_release_sbd(sc, &sc->stbd_list[i]); 660145247Sdamien 661145247Sdamien if (sc->cmd_dmat != NULL) { 662145247Sdamien bus_dmamap_destroy(sc->cmd_dmat, sc->cmd_map); 663145247Sdamien bus_dma_tag_destroy(sc->cmd_dmat); 664145247Sdamien } 665145247Sdamien 666145247Sdamien if (sc->hdr_dmat != NULL) { 667145247Sdamien for (i = 0; i < IPW_NDATA; i++) 668145247Sdamien bus_dmamap_destroy(sc->hdr_dmat, sc->shdr_list[i].map); 669145247Sdamien bus_dma_tag_destroy(sc->hdr_dmat); 670145247Sdamien } 671145247Sdamien 672145247Sdamien if (sc->txbuf_dmat != NULL) { 673145247Sdamien for (i = 0; i < IPW_NDATA; i++) { 674145247Sdamien bus_dmamap_destroy(sc->txbuf_dmat, 675145247Sdamien sc->tx_sbuf_list[i].map); 676145247Sdamien } 677145247Sdamien bus_dma_tag_destroy(sc->txbuf_dmat); 678145247Sdamien } 679145247Sdamien 680145247Sdamien if (sc->rxbuf_dmat != NULL) { 681145247Sdamien for (i = 0; i < IPW_NRBD; i++) { 682145247Sdamien sbuf = &sc->rx_sbuf_list[i]; 683145247Sdamien if (sbuf->m != NULL) { 684145247Sdamien bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, 685145247Sdamien BUS_DMASYNC_POSTREAD); 686145247Sdamien bus_dmamap_unload(sc->rxbuf_dmat, sbuf->map); 687145247Sdamien m_freem(sbuf->m); 688145247Sdamien } 689145247Sdamien bus_dmamap_destroy(sc->rxbuf_dmat, sbuf->map); 690145247Sdamien } 691145247Sdamien bus_dma_tag_destroy(sc->rxbuf_dmat); 692145247Sdamien } 693145247Sdamien} 694145247Sdamien 695145247Sdamienstatic int 696145247Sdamienipw_shutdown(device_t dev) 697145247Sdamien{ 698145247Sdamien struct ipw_softc *sc = device_get_softc(dev); 699145247Sdamien 700145247Sdamien ipw_stop(sc); 701145247Sdamien 702145247Sdamien return 0; 703145247Sdamien} 704145247Sdamien 705145247Sdamienstatic int 706145247Sdamienipw_suspend(device_t dev) 707145247Sdamien{ 708145247Sdamien struct ipw_softc *sc = device_get_softc(dev); 709145247Sdamien 710145247Sdamien ipw_stop(sc); 711145247Sdamien 712145247Sdamien return 0; 713145247Sdamien} 714145247Sdamien 715145247Sdamienstatic int 716145247Sdamienipw_resume(device_t dev) 717145247Sdamien{ 718145247Sdamien struct ipw_softc *sc = device_get_softc(dev); 719145247Sdamien struct ifnet *ifp = sc->sc_ic.ic_ifp; 720145247Sdamien 721145247Sdamien IPW_LOCK(sc); 722145247Sdamien 723146498Sdamien pci_write_config(dev, 0x41, 0, 1); 724146498Sdamien 725145247Sdamien if (ifp->if_flags & IFF_UP) { 726145247Sdamien ifp->if_init(ifp->if_softc); 727145247Sdamien if (ifp->if_flags & IFF_RUNNING) 728145247Sdamien ifp->if_start(ifp); 729145247Sdamien } 730145247Sdamien 731145247Sdamien IPW_UNLOCK(sc); 732145247Sdamien 733145247Sdamien return 0; 734145247Sdamien} 735145247Sdamien 736145247Sdamienstatic int 737145247Sdamienipw_media_change(struct ifnet *ifp) 738145247Sdamien{ 739145247Sdamien struct ipw_softc *sc = ifp->if_softc; 740145247Sdamien int error; 741145247Sdamien 742145247Sdamien IPW_LOCK(sc); 743145247Sdamien 744145247Sdamien error = ieee80211_media_change(ifp); 745145247Sdamien if (error != ENETRESET) { 746145247Sdamien IPW_UNLOCK(sc); 747145247Sdamien return error; 748145247Sdamien } 749145247Sdamien 750145247Sdamien if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) 751145247Sdamien ipw_init(sc); 752145247Sdamien 753145247Sdamien IPW_UNLOCK(sc); 754145247Sdamien 755145247Sdamien return 0; 756145247Sdamien} 757145247Sdamien 758145247Sdamien/* 759145247Sdamien * The firmware automaticly adapt the transmit speed. We report the current 760145247Sdamien * transmit speed here. 761145247Sdamien */ 762145247Sdamienstatic void 763145247Sdamienipw_media_status(struct ifnet *ifp, struct ifmediareq *imr) 764145247Sdamien{ 765145247Sdamien#define N(a) (sizeof (a) / sizeof (a[0])) 766145247Sdamien struct ipw_softc *sc = ifp->if_softc; 767145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 768145247Sdamien static const struct { 769145247Sdamien uint32_t val; 770145247Sdamien int rate; 771145247Sdamien } rates[] = { 772145247Sdamien { IPW_RATE_DS1, 2 }, 773145247Sdamien { IPW_RATE_DS2, 4 }, 774145247Sdamien { IPW_RATE_DS5, 11 }, 775145247Sdamien { IPW_RATE_DS11, 22 }, 776145247Sdamien }; 777145247Sdamien uint32_t val; 778145247Sdamien int rate, i; 779145247Sdamien 780145247Sdamien imr->ifm_status = IFM_AVALID; 781145247Sdamien imr->ifm_active = IFM_IEEE80211; 782145247Sdamien if (ic->ic_state == IEEE80211_S_RUN) 783145247Sdamien imr->ifm_status |= IFM_ACTIVE; 784145247Sdamien 785145247Sdamien /* read current transmission rate from adapter */ 786145247Sdamien val = ipw_read_table1(sc, IPW_INFO_CURRENT_TX_RATE) & 0xf; 787145247Sdamien 788145247Sdamien /* convert ipw rate to 802.11 rate */ 789145247Sdamien for (i = 0; i < N(rates) && rates[i].val != val; i++); 790145247Sdamien rate = (i < N(rates)) ? rates[i].rate : 0; 791145247Sdamien 792145247Sdamien imr->ifm_active |= IFM_IEEE80211_11B; 793145247Sdamien imr->ifm_active |= ieee80211_rate2media(ic, rate, IEEE80211_MODE_11B); 794145247Sdamien switch (ic->ic_opmode) { 795145247Sdamien case IEEE80211_M_STA: 796145247Sdamien break; 797145247Sdamien 798145247Sdamien case IEEE80211_M_IBSS: 799145247Sdamien imr->ifm_active |= IFM_IEEE80211_IBSS; 800145247Sdamien break; 801145247Sdamien 802145247Sdamien case IEEE80211_M_MONITOR: 803145247Sdamien imr->ifm_active |= IFM_IEEE80211_MONITOR; 804145247Sdamien break; 805145247Sdamien 806145247Sdamien case IEEE80211_M_AHDEMO: 807145247Sdamien case IEEE80211_M_HOSTAP: 808145247Sdamien /* should not get there */ 809145247Sdamien break; 810145247Sdamien } 811145247Sdamien#undef N 812145247Sdamien} 813145247Sdamien 814145247Sdamienstatic int 815145247Sdamienipw_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 816145247Sdamien{ 817145247Sdamien struct ifnet *ifp = ic->ic_ifp; 818145247Sdamien struct ipw_softc *sc = ifp->if_softc; 819145247Sdamien struct ieee80211_node *ni; 820145247Sdamien uint8_t macaddr[IEEE80211_ADDR_LEN]; 821145247Sdamien uint32_t len; 822145247Sdamien 823145247Sdamien switch (nstate) { 824145247Sdamien case IEEE80211_S_RUN: 825145247Sdamien DELAY(200); /* firmware needs a short delay here */ 826145247Sdamien 827145247Sdamien len = IEEE80211_ADDR_LEN; 828145247Sdamien ipw_read_table2(sc, IPW_INFO_CURRENT_BSSID, macaddr, &len); 829145247Sdamien 830145247Sdamien ni = ieee80211_find_node(&ic->ic_scan, macaddr); 831145247Sdamien if (ni == NULL) 832145247Sdamien break; 833145247Sdamien 834145247Sdamien ieee80211_ref_node(ni); 835145247Sdamien ieee80211_sta_join(ic, ni); 836145247Sdamien ieee80211_node_authorize(ic, ni); 837145247Sdamien 838145247Sdamien if (ic->ic_opmode == IEEE80211_M_STA) 839145247Sdamien ieee80211_notify_node_join(ic, ni, 1); 840145247Sdamien break; 841145247Sdamien 842145247Sdamien case IEEE80211_S_INIT: 843145247Sdamien case IEEE80211_S_SCAN: 844145247Sdamien case IEEE80211_S_AUTH: 845145247Sdamien case IEEE80211_S_ASSOC: 846145247Sdamien break; 847145247Sdamien } 848145247Sdamien 849145247Sdamien ic->ic_state = nstate; 850145247Sdamien return 0; 851145247Sdamien} 852145247Sdamien 853145247Sdamien/* 854145247Sdamien * Read 16 bits at address 'addr' from the serial EEPROM. 855145247Sdamien */ 856145247Sdamienstatic uint16_t 857145247Sdamienipw_read_prom_word(struct ipw_softc *sc, uint8_t addr) 858145247Sdamien{ 859145247Sdamien uint32_t tmp; 860145247Sdamien uint16_t val; 861145247Sdamien int n; 862145247Sdamien 863145247Sdamien /* clock C once before the first command */ 864145247Sdamien IPW_EEPROM_CTL(sc, 0); 865145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 866145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C); 867145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 868145247Sdamien 869145247Sdamien /* write start bit (1) */ 870145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D); 871145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C); 872145247Sdamien 873145247Sdamien /* write READ opcode (10) */ 874145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D); 875145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C); 876145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 877145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C); 878145247Sdamien 879145247Sdamien /* write address A7-A0 */ 880145247Sdamien for (n = 7; n >= 0; n--) { 881145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S | 882145247Sdamien (((addr >> n) & 1) << IPW_EEPROM_SHIFT_D)); 883145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S | 884145247Sdamien (((addr >> n) & 1) << IPW_EEPROM_SHIFT_D) | IPW_EEPROM_C); 885145247Sdamien } 886145247Sdamien 887145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 888145247Sdamien 889145247Sdamien /* read data Q15-Q0 */ 890145247Sdamien val = 0; 891145247Sdamien for (n = 15; n >= 0; n--) { 892145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C); 893145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 894145247Sdamien tmp = MEM_READ_4(sc, IPW_MEM_EEPROM_CTL); 895145247Sdamien val |= ((tmp & IPW_EEPROM_Q) >> IPW_EEPROM_SHIFT_Q) << n; 896145247Sdamien } 897145247Sdamien 898145247Sdamien IPW_EEPROM_CTL(sc, 0); 899145247Sdamien 900145247Sdamien /* clear Chip Select and clock C */ 901145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 902145247Sdamien IPW_EEPROM_CTL(sc, 0); 903145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_C); 904145247Sdamien 905145247Sdamien return le16toh(val); 906145247Sdamien} 907145247Sdamien 908145247Sdamienstatic void 909145247Sdamienipw_command_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf) 910145247Sdamien{ 911145247Sdamien struct ipw_cmd *cmd; 912145247Sdamien 913145247Sdamien bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD); 914145247Sdamien 915145247Sdamien cmd = mtod(sbuf->m, struct ipw_cmd *); 916145247Sdamien 917145247Sdamien DPRINTFN(2, ("cmd ack'ed (%u, %u, %u, %u, %u)\n", le32toh(cmd->type), 918145247Sdamien le32toh(cmd->subtype), le32toh(cmd->seq), le32toh(cmd->len), 919145247Sdamien le32toh(cmd->status))); 920145247Sdamien 921145247Sdamien wakeup(sc); 922145247Sdamien} 923145247Sdamien 924145247Sdamienstatic void 925145247Sdamienipw_newstate_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf) 926145247Sdamien{ 927145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 928145247Sdamien uint32_t state; 929145247Sdamien 930145247Sdamien bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD); 931145247Sdamien 932145247Sdamien state = le32toh(*mtod(sbuf->m, uint32_t *)); 933145247Sdamien 934145247Sdamien DPRINTFN(2, ("entering state %u\n", state)); 935145247Sdamien 936145247Sdamien switch (state) { 937145247Sdamien case IPW_STATE_ASSOCIATED: 938145247Sdamien ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 939145247Sdamien break; 940145247Sdamien 941145247Sdamien case IPW_STATE_SCANNING: 942145247Sdamien /* don't leave run state on background scan */ 943145247Sdamien if (ic->ic_state != IEEE80211_S_RUN) 944145247Sdamien ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 945145247Sdamien 946145247Sdamien ic->ic_flags |= IEEE80211_F_SCAN; 947145247Sdamien break; 948145247Sdamien 949145247Sdamien case IPW_STATE_SCAN_COMPLETE: 950145247Sdamien ieee80211_notify_scan_done(ic); 951145247Sdamien ic->ic_flags &= ~IEEE80211_F_SCAN; 952145247Sdamien break; 953145247Sdamien 954145247Sdamien case IPW_STATE_ASSOCIATION_LOST: 955145247Sdamien ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 956145247Sdamien break; 957145247Sdamien 958145247Sdamien case IPW_STATE_RADIO_DISABLED: 959145247Sdamien ic->ic_ifp->if_flags &= ~IFF_UP; 960145247Sdamien ipw_stop(sc); 961145247Sdamien break; 962145247Sdamien } 963145247Sdamien} 964145247Sdamien 965145247Sdamien/* 966145247Sdamien * XXX: Hack to set the current channel to the value advertised in beacons or 967145247Sdamien * probe responses. Only used during AP detection. 968145247Sdamien */ 969145247Sdamienstatic void 970145247Sdamienipw_fix_channel(struct ieee80211com *ic, struct mbuf *m) 971145247Sdamien{ 972145247Sdamien struct ieee80211_frame *wh; 973145247Sdamien uint8_t subtype; 974145247Sdamien uint8_t *frm, *efrm; 975145247Sdamien 976145247Sdamien wh = mtod(m, struct ieee80211_frame *); 977145247Sdamien 978145247Sdamien if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT) 979145247Sdamien return; 980145247Sdamien 981145247Sdamien subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 982145247Sdamien 983145247Sdamien if (subtype != IEEE80211_FC0_SUBTYPE_BEACON && 984145247Sdamien subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP) 985145247Sdamien return; 986145247Sdamien 987145247Sdamien frm = (uint8_t *)(wh + 1); 988145247Sdamien efrm = mtod(m, uint8_t *) + m->m_len; 989145247Sdamien 990145247Sdamien frm += 12; /* skip tstamp, bintval and capinfo fields */ 991145247Sdamien while (frm < efrm) { 992145247Sdamien if (*frm == IEEE80211_ELEMID_DSPARMS) 993145247Sdamien#if IEEE80211_CHAN_MAX < 255 994145247Sdamien if (frm[2] <= IEEE80211_CHAN_MAX) 995145247Sdamien#endif 996145247Sdamien ic->ic_bss->ni_chan = &ic->ic_channels[frm[2]]; 997145247Sdamien 998145247Sdamien frm += frm[1] + 2; 999145247Sdamien } 1000145247Sdamien} 1001145247Sdamien 1002145247Sdamienstatic void 1003145247Sdamienipw_data_intr(struct ipw_softc *sc, struct ipw_status *status, 1004145247Sdamien struct ipw_soft_bd *sbd, struct ipw_soft_buf *sbuf) 1005145247Sdamien{ 1006145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 1007145247Sdamien struct ifnet *ifp = ic->ic_ifp; 1008145247Sdamien struct mbuf *m; 1009145247Sdamien struct ieee80211_frame *wh; 1010145247Sdamien struct ieee80211_node *ni; 1011145247Sdamien bus_addr_t physaddr; 1012145247Sdamien int error; 1013145247Sdamien 1014145247Sdamien bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD); 1015145247Sdamien bus_dmamap_unload(sc->rxbuf_dmat, sbuf->map); 1016145247Sdamien 1017145247Sdamien /* finalize mbuf */ 1018145247Sdamien m = sbuf->m; 1019145247Sdamien m->m_pkthdr.rcvif = ifp; 1020145247Sdamien m->m_pkthdr.len = m->m_len = le32toh(status->len); 1021145247Sdamien 1022145247Sdamien if (sc->sc_drvbpf != NULL) { 1023145247Sdamien struct ipw_rx_radiotap_header *tap = &sc->sc_rxtap; 1024145247Sdamien 1025145247Sdamien tap->wr_flags = 0; 1026145247Sdamien tap->wr_antsignal = status->rssi; 1027145247Sdamien tap->wr_chan_freq = htole16(ic->ic_ibss_chan->ic_freq); 1028145247Sdamien tap->wr_chan_flags = htole16(ic->ic_ibss_chan->ic_flags); 1029145247Sdamien 1030145247Sdamien bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m); 1031145247Sdamien } 1032145247Sdamien 1033145247Sdamien if (ic->ic_state == IEEE80211_S_SCAN) 1034145247Sdamien ipw_fix_channel(ic, m); 1035145247Sdamien 1036145247Sdamien wh = mtod(m, struct ieee80211_frame *); 1037145247Sdamien ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 1038145247Sdamien 1039145247Sdamien /* send the frame to the 802.11 layer */ 1040145247Sdamien ieee80211_input(ic, m, ni, status->rssi, 0); 1041145247Sdamien 1042145247Sdamien /* node is no longer needed */ 1043145247Sdamien ieee80211_free_node(ni); 1044145247Sdamien 1045145247Sdamien m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 1046145247Sdamien if (m == NULL) { 1047145247Sdamien device_printf(sc->sc_dev, "could not allocate rx mbuf\n"); 1048145247Sdamien sbuf->m = NULL; 1049145247Sdamien return; 1050145247Sdamien } 1051145247Sdamien 1052145247Sdamien error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map, mtod(m, void *), 1053145247Sdamien MCLBYTES, ipw_dma_map_addr, &physaddr, 0); 1054145247Sdamien if (error != 0) { 1055145247Sdamien device_printf(sc->sc_dev, "could not map rx DMA memory\n"); 1056145247Sdamien m_freem(m); 1057145247Sdamien sbuf->m = NULL; 1058145247Sdamien return; 1059145247Sdamien } 1060145247Sdamien 1061145247Sdamien sbuf->m = m; 1062145247Sdamien sbd->bd->physaddr = htole32(physaddr); 1063145247Sdamien 1064145247Sdamien DPRINTFN(5, ("received frame len=%u, rssi=%u\n", le32toh(status->len), 1065145247Sdamien status->rssi)); 1066145247Sdamien 1067145247Sdamien bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE); 1068145247Sdamien} 1069145247Sdamien 1070145247Sdamienstatic void 1071145247Sdamienipw_rx_intr(struct ipw_softc *sc) 1072145247Sdamien{ 1073145247Sdamien struct ipw_status *status; 1074145247Sdamien struct ipw_soft_bd *sbd; 1075145247Sdamien struct ipw_soft_buf *sbuf; 1076145247Sdamien uint32_t r, i; 1077145247Sdamien 1078145247Sdamien if (!(sc->flags & IPW_FLAG_FW_INITED)) 1079145247Sdamien return; 1080145247Sdamien 1081145247Sdamien r = CSR_READ_4(sc, IPW_CSR_RX_READ); 1082145247Sdamien 1083145247Sdamien bus_dmamap_sync(sc->status_dmat, sc->status_map, BUS_DMASYNC_POSTREAD); 1084145247Sdamien 1085145247Sdamien for (i = (sc->rxcur + 1) % IPW_NRBD; i != r; i = (i + 1) % IPW_NRBD) { 1086145247Sdamien status = &sc->status_list[i]; 1087145247Sdamien sbd = &sc->srbd_list[i]; 1088145247Sdamien sbuf = sbd->priv; 1089145247Sdamien 1090145247Sdamien switch (le16toh(status->code) & 0xf) { 1091145247Sdamien case IPW_STATUS_CODE_COMMAND: 1092145247Sdamien ipw_command_intr(sc, sbuf); 1093145247Sdamien break; 1094145247Sdamien 1095145247Sdamien case IPW_STATUS_CODE_NEWSTATE: 1096145247Sdamien ipw_newstate_intr(sc, sbuf); 1097145247Sdamien break; 1098145247Sdamien 1099145247Sdamien case IPW_STATUS_CODE_DATA_802_3: 1100145247Sdamien case IPW_STATUS_CODE_DATA_802_11: 1101145247Sdamien ipw_data_intr(sc, status, sbd, sbuf); 1102145247Sdamien break; 1103145247Sdamien 1104145247Sdamien case IPW_STATUS_CODE_NOTIFICATION: 1105145247Sdamien DPRINTFN(2, ("received notification\n")); 1106145247Sdamien break; 1107145247Sdamien 1108145247Sdamien default: 1109145247Sdamien device_printf(sc->sc_dev, "unknown status code %u\n", 1110145247Sdamien le16toh(status->code)); 1111145247Sdamien } 1112145247Sdamien 1113145247Sdamien /* firmware was killed, stop processing received frames */ 1114145247Sdamien if (!(sc->flags & IPW_FLAG_FW_INITED)) 1115145247Sdamien return; 1116145247Sdamien 1117145247Sdamien sbd->bd->flags = 0; 1118145247Sdamien } 1119145247Sdamien 1120145247Sdamien bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE); 1121145247Sdamien 1122145247Sdamien /* kick the firmware */ 1123145247Sdamien sc->rxcur = (r == 0) ? IPW_NRBD - 1 : r - 1; 1124145247Sdamien CSR_WRITE_4(sc, IPW_CSR_RX_WRITE, sc->rxcur); 1125145247Sdamien} 1126145247Sdamien 1127145247Sdamienstatic void 1128145247Sdamienipw_release_sbd(struct ipw_softc *sc, struct ipw_soft_bd *sbd) 1129145247Sdamien{ 1130145247Sdamien struct ipw_soft_hdr *shdr; 1131145247Sdamien struct ipw_soft_buf *sbuf; 1132145247Sdamien 1133145247Sdamien switch (sbd->type) { 1134145247Sdamien case IPW_SBD_TYPE_COMMAND: 1135145247Sdamien bus_dmamap_sync(sc->cmd_dmat, sc->cmd_map, 1136145247Sdamien BUS_DMASYNC_POSTWRITE); 1137145247Sdamien bus_dmamap_unload(sc->cmd_dmat, sc->cmd_map); 1138145247Sdamien break; 1139145247Sdamien 1140145247Sdamien case IPW_SBD_TYPE_HEADER: 1141145247Sdamien shdr = sbd->priv; 1142145247Sdamien bus_dmamap_sync(sc->hdr_dmat, shdr->map, BUS_DMASYNC_POSTWRITE); 1143145247Sdamien bus_dmamap_unload(sc->hdr_dmat, shdr->map); 1144145247Sdamien SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next); 1145145247Sdamien break; 1146145247Sdamien 1147145247Sdamien case IPW_SBD_TYPE_DATA: 1148145247Sdamien sbuf = sbd->priv; 1149145247Sdamien bus_dmamap_sync(sc->txbuf_dmat, sbuf->map, 1150145247Sdamien BUS_DMASYNC_POSTWRITE); 1151145247Sdamien bus_dmamap_unload(sc->txbuf_dmat, sbuf->map); 1152145247Sdamien SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next); 1153145247Sdamien 1154145247Sdamien m_freem(sbuf->m); 1155145247Sdamien ieee80211_free_node(sbuf->ni); 1156145247Sdamien 1157145247Sdamien sc->sc_tx_timer = 0; 1158145247Sdamien break; 1159145247Sdamien } 1160145247Sdamien 1161145247Sdamien sbd->type = IPW_SBD_TYPE_NOASSOC; 1162145247Sdamien} 1163145247Sdamien 1164145247Sdamienstatic void 1165145247Sdamienipw_tx_intr(struct ipw_softc *sc) 1166145247Sdamien{ 1167145247Sdamien struct ifnet *ifp = sc->sc_ic.ic_ifp; 1168145247Sdamien struct ipw_soft_bd *sbd; 1169145247Sdamien uint32_t r, i; 1170145247Sdamien 1171145247Sdamien if (!(sc->flags & IPW_FLAG_FW_INITED)) 1172145247Sdamien return; 1173145247Sdamien 1174145247Sdamien r = CSR_READ_4(sc, IPW_CSR_TX_READ); 1175145247Sdamien 1176145247Sdamien for (i = (sc->txold + 1) % IPW_NTBD; i != r; i = (i + 1) % IPW_NTBD) { 1177145247Sdamien sbd = &sc->stbd_list[i]; 1178145247Sdamien 1179145247Sdamien if (sbd->type == IPW_SBD_TYPE_DATA) 1180145247Sdamien ifp->if_opackets++; 1181145247Sdamien 1182145247Sdamien ipw_release_sbd(sc, sbd); 1183145247Sdamien sc->txfree++; 1184145247Sdamien } 1185145247Sdamien 1186145247Sdamien /* remember what the firmware has processed */ 1187145247Sdamien sc->txold = (r == 0) ? IPW_NTBD - 1 : r - 1; 1188145247Sdamien 1189145247Sdamien ifp->if_flags &= ~IFF_OACTIVE; 1190145247Sdamien ipw_start(ifp); 1191145247Sdamien} 1192145247Sdamien 1193145247Sdamienstatic void 1194145247Sdamienipw_intr(void *arg) 1195145247Sdamien{ 1196145247Sdamien struct ipw_softc *sc = arg; 1197145247Sdamien uint32_t r; 1198145247Sdamien 1199145247Sdamien IPW_LOCK(sc); 1200145247Sdamien 1201145247Sdamien if ((r = CSR_READ_4(sc, IPW_CSR_INTR)) == 0 || r == 0xffffffff) { 1202145247Sdamien IPW_UNLOCK(sc); 1203145247Sdamien return; 1204145247Sdamien } 1205145247Sdamien 1206145247Sdamien /* disable interrupts */ 1207145247Sdamien CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0); 1208145247Sdamien 1209145247Sdamien if (r & (IPW_INTR_FATAL_ERROR | IPW_INTR_PARITY_ERROR)) { 1210145247Sdamien device_printf(sc->sc_dev, "fatal error\n"); 1211145247Sdamien sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1212145247Sdamien ipw_stop(sc); 1213145247Sdamien } 1214145247Sdamien 1215145247Sdamien if (r & IPW_INTR_FW_INIT_DONE) { 1216145247Sdamien if (!(r & (IPW_INTR_FATAL_ERROR | IPW_INTR_PARITY_ERROR))) 1217145247Sdamien wakeup(sc); 1218145247Sdamien } 1219145247Sdamien 1220145247Sdamien if (r & IPW_INTR_RX_TRANSFER) 1221145247Sdamien ipw_rx_intr(sc); 1222145247Sdamien 1223145247Sdamien if (r & IPW_INTR_TX_TRANSFER) 1224145247Sdamien ipw_tx_intr(sc); 1225145247Sdamien 1226145247Sdamien /* acknowledge all interrupts */ 1227145247Sdamien CSR_WRITE_4(sc, IPW_CSR_INTR, r); 1228145247Sdamien 1229145247Sdamien /* re-enable interrupts */ 1230145247Sdamien CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK); 1231145247Sdamien 1232145247Sdamien IPW_UNLOCK(sc); 1233145247Sdamien} 1234145247Sdamien 1235145247Sdamienstatic void 1236145247Sdamienipw_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1237145247Sdamien{ 1238145247Sdamien if (error != 0) 1239145247Sdamien return; 1240145247Sdamien 1241145247Sdamien KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg)); 1242145247Sdamien 1243145247Sdamien *(bus_addr_t *)arg = segs[0].ds_addr; 1244145247Sdamien} 1245145247Sdamien 1246145247Sdamien/* 1247145247Sdamien * Send a command to the firmware and wait for the acknowledgement. 1248145247Sdamien */ 1249145247Sdamienstatic int 1250145247Sdamienipw_cmd(struct ipw_softc *sc, uint32_t type, void *data, uint32_t len) 1251145247Sdamien{ 1252145247Sdamien struct ipw_soft_bd *sbd; 1253145247Sdamien bus_addr_t physaddr; 1254145247Sdamien int error; 1255145247Sdamien 1256145247Sdamien sbd = &sc->stbd_list[sc->txcur]; 1257145247Sdamien 1258145247Sdamien error = bus_dmamap_load(sc->cmd_dmat, sc->cmd_map, &sc->cmd, 1259145247Sdamien sizeof (struct ipw_cmd), ipw_dma_map_addr, &physaddr, 0); 1260145247Sdamien if (error != 0) { 1261145247Sdamien device_printf(sc->sc_dev, "could not map command DMA memory\n"); 1262145247Sdamien return error; 1263145247Sdamien } 1264145247Sdamien 1265145247Sdamien sc->cmd.type = htole32(type); 1266145247Sdamien sc->cmd.subtype = 0; 1267145247Sdamien sc->cmd.len = htole32(len); 1268145247Sdamien sc->cmd.seq = 0; 1269145247Sdamien bcopy(data, sc->cmd.data, len); 1270145247Sdamien 1271145247Sdamien sbd->type = IPW_SBD_TYPE_COMMAND; 1272145247Sdamien sbd->bd->physaddr = htole32(physaddr); 1273145247Sdamien sbd->bd->len = htole32(sizeof (struct ipw_cmd)); 1274145247Sdamien sbd->bd->nfrag = 1; 1275145247Sdamien sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_COMMAND | 1276145247Sdamien IPW_BD_FLAG_TX_LAST_FRAGMENT; 1277145247Sdamien 1278145247Sdamien bus_dmamap_sync(sc->cmd_dmat, sc->cmd_map, BUS_DMASYNC_PREWRITE); 1279145247Sdamien bus_dmamap_sync(sc->tbd_dmat, sc->tbd_map, BUS_DMASYNC_PREWRITE); 1280145247Sdamien 1281145247Sdamien DPRINTFN(2, ("sending command (%u, %u, %u, %u)\n", type, 0, 0, len)); 1282145247Sdamien 1283145247Sdamien /* kick firmware */ 1284145247Sdamien sc->txfree--; 1285145247Sdamien sc->txcur = (sc->txcur + 1) % IPW_NTBD; 1286145247Sdamien CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur); 1287145247Sdamien 1288145247Sdamien /* wait at most one second for command to complete */ 1289145247Sdamien return msleep(sc, &sc->sc_mtx, 0, "ipwcmd", hz); 1290145247Sdamien} 1291145247Sdamien 1292145247Sdamienstatic int 1293145247Sdamienipw_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni) 1294145247Sdamien{ 1295145247Sdamien struct ipw_softc *sc = ifp->if_softc; 1296145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 1297145247Sdamien struct ieee80211_frame *wh; 1298145247Sdamien struct ipw_soft_bd *sbd; 1299145247Sdamien struct ipw_soft_hdr *shdr; 1300145247Sdamien struct ipw_soft_buf *sbuf; 1301145247Sdamien struct ieee80211_key *k; 1302145247Sdamien struct mbuf *mnew; 1303145247Sdamien bus_dma_segment_t segs[IPW_MAX_NSEG]; 1304145247Sdamien bus_addr_t physaddr; 1305145247Sdamien int nsegs, error, i; 1306145247Sdamien 1307145247Sdamien wh = mtod(m0, struct ieee80211_frame *); 1308145247Sdamien 1309145247Sdamien if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1310145247Sdamien k = ieee80211_crypto_encap(ic, ni, m0); 1311145247Sdamien if (k == NULL) 1312145247Sdamien return ENOBUFS; 1313145247Sdamien 1314145247Sdamien /* packet header may have moved, reset our local pointer */ 1315145247Sdamien wh = mtod(m0, struct ieee80211_frame *); 1316145247Sdamien } 1317145247Sdamien 1318145247Sdamien if (sc->sc_drvbpf != NULL) { 1319145247Sdamien struct ipw_tx_radiotap_header *tap = &sc->sc_txtap; 1320145247Sdamien 1321145247Sdamien tap->wt_flags = 0; 1322145247Sdamien tap->wt_chan_freq = htole16(ic->ic_ibss_chan->ic_freq); 1323145247Sdamien tap->wt_chan_flags = htole16(ic->ic_ibss_chan->ic_flags); 1324145247Sdamien 1325145247Sdamien bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0); 1326145247Sdamien } 1327145247Sdamien 1328145247Sdamien shdr = SLIST_FIRST(&sc->free_shdr); 1329145247Sdamien sbuf = SLIST_FIRST(&sc->free_sbuf); 1330145247Sdamien KASSERT(shdr != NULL && sbuf != NULL, ("empty sw hdr/buf pool")); 1331145247Sdamien 1332145247Sdamien shdr->hdr.type = htole32(IPW_HDR_TYPE_SEND); 1333145247Sdamien shdr->hdr.subtype = 0; 1334145247Sdamien shdr->hdr.encrypted = (wh->i_fc[1] & IEEE80211_FC1_WEP) ? 1 : 0; 1335145247Sdamien shdr->hdr.encrypt = 0; 1336145247Sdamien shdr->hdr.keyidx = 0; 1337145247Sdamien shdr->hdr.keysz = 0; 1338145247Sdamien shdr->hdr.fragmentsz = 0; 1339145247Sdamien IEEE80211_ADDR_COPY(shdr->hdr.src_addr, wh->i_addr2); 1340145247Sdamien if (ic->ic_opmode == IEEE80211_M_STA) 1341145247Sdamien IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr3); 1342145247Sdamien else 1343145247Sdamien IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr1); 1344145247Sdamien 1345145247Sdamien /* trim IEEE802.11 header */ 1346145247Sdamien m_adj(m0, sizeof (struct ieee80211_frame)); 1347145247Sdamien 1348145247Sdamien error = bus_dmamap_load_mbuf_sg(sc->txbuf_dmat, sbuf->map, m0, segs, 1349145247Sdamien &nsegs, 0); 1350145247Sdamien if (error != 0 && error != EFBIG) { 1351145247Sdamien device_printf(sc->sc_dev, "could not map mbuf (error %d)\n", 1352145247Sdamien error); 1353145247Sdamien m_freem(m0); 1354145247Sdamien return error; 1355145247Sdamien } 1356145247Sdamien if (error != 0) { 1357145247Sdamien mnew = m_defrag(m0, M_DONTWAIT); 1358145247Sdamien if (mnew == NULL) { 1359145247Sdamien device_printf(sc->sc_dev, 1360145247Sdamien "could not defragment mbuf\n"); 1361145247Sdamien m_freem(m0); 1362145247Sdamien return ENOBUFS; 1363145247Sdamien } 1364145247Sdamien m0 = mnew; 1365145247Sdamien 1366145247Sdamien error = bus_dmamap_load_mbuf_sg(sc->txbuf_dmat, sbuf->map, m0, 1367145247Sdamien segs, &nsegs, 0); 1368145247Sdamien if (error != 0) { 1369145247Sdamien device_printf(sc->sc_dev, 1370145247Sdamien "could not map mbuf (error %d)\n", error); 1371145247Sdamien m_freem(m0); 1372145247Sdamien return error; 1373145247Sdamien } 1374145247Sdamien } 1375145247Sdamien 1376145247Sdamien error = bus_dmamap_load(sc->hdr_dmat, shdr->map, &shdr->hdr, 1377145247Sdamien sizeof (struct ipw_hdr), ipw_dma_map_addr, &physaddr, 0); 1378145247Sdamien if (error != 0) { 1379145247Sdamien device_printf(sc->sc_dev, "could not map header DMA memory\n"); 1380145247Sdamien bus_dmamap_unload(sc->txbuf_dmat, sbuf->map); 1381145247Sdamien m_freem(m0); 1382145247Sdamien return error; 1383145247Sdamien } 1384145247Sdamien 1385145247Sdamien SLIST_REMOVE_HEAD(&sc->free_sbuf, next); 1386145247Sdamien SLIST_REMOVE_HEAD(&sc->free_shdr, next); 1387145247Sdamien 1388145247Sdamien sbd = &sc->stbd_list[sc->txcur]; 1389145247Sdamien sbd->type = IPW_SBD_TYPE_HEADER; 1390145247Sdamien sbd->priv = shdr; 1391145247Sdamien sbd->bd->physaddr = htole32(physaddr); 1392145247Sdamien sbd->bd->len = htole32(sizeof (struct ipw_hdr)); 1393145247Sdamien sbd->bd->nfrag = 1 + nsegs; 1394145247Sdamien sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3 | 1395145247Sdamien IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT; 1396145247Sdamien 1397145247Sdamien DPRINTFN(5, ("sending tx hdr (%u, %u, %u, %u, %6D, %6D)\n", 1398145247Sdamien shdr->hdr.type, shdr->hdr.subtype, shdr->hdr.encrypted, 1399145247Sdamien shdr->hdr.encrypt, shdr->hdr.src_addr, ":", shdr->hdr.dst_addr, 1400145247Sdamien ":")); 1401145247Sdamien 1402145247Sdamien sc->txfree--; 1403145247Sdamien sc->txcur = (sc->txcur + 1) % IPW_NTBD; 1404145247Sdamien 1405145247Sdamien sbuf->m = m0; 1406145247Sdamien sbuf->ni = ni; 1407145247Sdamien 1408145247Sdamien for (i = 0; i < nsegs; i++) { 1409145247Sdamien sbd = &sc->stbd_list[sc->txcur]; 1410145247Sdamien 1411145247Sdamien sbd->bd->physaddr = htole32(segs[i].ds_addr); 1412145247Sdamien sbd->bd->len = htole32(segs[i].ds_len); 1413145247Sdamien sbd->bd->nfrag = 0; 1414145247Sdamien sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3; 1415145247Sdamien if (i == nsegs - 1) { 1416145247Sdamien sbd->type = IPW_SBD_TYPE_DATA; 1417145247Sdamien sbd->priv = sbuf; 1418145247Sdamien sbd->bd->flags |= IPW_BD_FLAG_TX_LAST_FRAGMENT; 1419145247Sdamien } else { 1420145247Sdamien sbd->type = IPW_SBD_TYPE_NOASSOC; 1421145247Sdamien sbd->bd->flags |= IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT; 1422145247Sdamien } 1423145247Sdamien 1424145247Sdamien DPRINTFN(5, ("sending fragment (%d, %d)\n", i, segs[i].ds_len)); 1425145247Sdamien 1426145247Sdamien sc->txfree--; 1427145247Sdamien sc->txcur = (sc->txcur + 1) % IPW_NTBD; 1428145247Sdamien } 1429145247Sdamien 1430145247Sdamien bus_dmamap_sync(sc->hdr_dmat, shdr->map, BUS_DMASYNC_PREWRITE); 1431145247Sdamien bus_dmamap_sync(sc->txbuf_dmat, sbuf->map, BUS_DMASYNC_PREWRITE); 1432145247Sdamien bus_dmamap_sync(sc->tbd_dmat, sc->tbd_map, BUS_DMASYNC_PREWRITE); 1433145247Sdamien 1434145247Sdamien /* kick firmware */ 1435145247Sdamien CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur); 1436145247Sdamien 1437145247Sdamien return 0; 1438145247Sdamien} 1439145247Sdamien 1440145247Sdamienstatic void 1441145247Sdamienipw_start(struct ifnet *ifp) 1442145247Sdamien{ 1443145247Sdamien struct ipw_softc *sc = ifp->if_softc; 1444145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 1445145247Sdamien struct mbuf *m0; 1446145247Sdamien struct ether_header *eh; 1447145247Sdamien struct ieee80211_node *ni; 1448145247Sdamien 1449145247Sdamien IPW_LOCK(sc); 1450145247Sdamien 1451145247Sdamien if (ic->ic_state != IEEE80211_S_RUN) { 1452145247Sdamien IPW_UNLOCK(sc); 1453145247Sdamien return; 1454145247Sdamien } 1455145247Sdamien 1456145247Sdamien for (;;) { 1457145247Sdamien IFQ_DRV_DEQUEUE(&ifp->if_snd, m0); 1458145247Sdamien if (m0 == NULL) 1459145247Sdamien break; 1460145247Sdamien 1461145247Sdamien if (sc->txfree < 1 + IPW_MAX_NSEG) { 1462145247Sdamien IFQ_DRV_PREPEND(&ifp->if_snd, m0); 1463145247Sdamien ifp->if_flags |= IFF_OACTIVE; 1464145247Sdamien break; 1465145247Sdamien } 1466145247Sdamien 1467145247Sdamien if (m0->m_len < sizeof (struct ether_header) && 1468145247Sdamien (m0 = m_pullup(m0, sizeof (struct ether_header))) == NULL) 1469145247Sdamien continue; 1470145247Sdamien 1471145247Sdamien eh = mtod(m0, struct ether_header *); 1472145247Sdamien ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1473145247Sdamien if (ni == NULL) { 1474145247Sdamien m_freem(m0); 1475145247Sdamien continue; 1476145247Sdamien } 1477145247Sdamien BPF_MTAP(ifp, m0); 1478145247Sdamien 1479145247Sdamien m0 = ieee80211_encap(ic, m0, ni); 1480145247Sdamien if (m0 == NULL) { 1481145247Sdamien ieee80211_free_node(ni); 1482145247Sdamien continue; 1483145247Sdamien } 1484145247Sdamien 1485145247Sdamien if (ic->ic_rawbpf != NULL) 1486145247Sdamien bpf_mtap(ic->ic_rawbpf, m0); 1487145247Sdamien 1488145247Sdamien if (ipw_tx_start(ifp, m0, ni) != 0) { 1489145247Sdamien ieee80211_free_node(ni); 1490145247Sdamien ifp->if_oerrors++; 1491145247Sdamien break; 1492145247Sdamien } 1493145247Sdamien 1494145247Sdamien /* start watchdog timer */ 1495145247Sdamien sc->sc_tx_timer = 5; 1496145247Sdamien ifp->if_timer = 1; 1497145247Sdamien } 1498145247Sdamien 1499145247Sdamien IPW_UNLOCK(sc); 1500145247Sdamien} 1501145247Sdamien 1502145247Sdamienstatic void 1503145247Sdamienipw_watchdog(struct ifnet *ifp) 1504145247Sdamien{ 1505145247Sdamien struct ipw_softc *sc = ifp->if_softc; 1506145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 1507145247Sdamien 1508145247Sdamien ifp->if_timer = 0; 1509145247Sdamien 1510145247Sdamien if (sc->sc_tx_timer > 0) { 1511145247Sdamien if (--sc->sc_tx_timer == 0) { 1512145247Sdamien if_printf(ifp, "device timeout\n"); 1513145247Sdamien ifp->if_oerrors++; 1514145247Sdamien ifp->if_flags &= ~IFF_UP; 1515145247Sdamien ipw_stop(sc); 1516145247Sdamien return; 1517145247Sdamien } 1518145247Sdamien ifp->if_timer = 1; 1519145247Sdamien } 1520145247Sdamien 1521145247Sdamien ieee80211_watchdog(ic); 1522145247Sdamien} 1523145247Sdamien 1524145247Sdamienstatic int 1525145247Sdamienipw_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1526145247Sdamien{ 1527145247Sdamien struct ipw_softc *sc = ifp->if_softc; 1528145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 1529145247Sdamien struct ifreq *ifr; 1530145247Sdamien int error = 0; 1531145247Sdamien 1532145247Sdamien IPW_LOCK(sc); 1533145247Sdamien 1534145247Sdamien switch (cmd) { 1535145247Sdamien case SIOCSIFFLAGS: 1536145247Sdamien if (ifp->if_flags & IFF_UP) { 1537145247Sdamien if (!(ifp->if_flags & IFF_RUNNING)) 1538145247Sdamien ipw_init(sc); 1539145247Sdamien } else { 1540145247Sdamien if (ifp->if_flags & IFF_RUNNING) 1541145247Sdamien ipw_stop(sc); 1542145247Sdamien } 1543145247Sdamien break; 1544145247Sdamien 1545145247Sdamien case SIOCSLOADFW: 1546145247Sdamien /* only super-user can do that! */ 1547145247Sdamien if ((error = suser(curthread)) != 0) 1548145247Sdamien break; 1549145247Sdamien 1550145247Sdamien ifr = (struct ifreq *)data; 1551145247Sdamien error = ipw_cache_firmware(sc, ifr->ifr_data); 1552145247Sdamien break; 1553145247Sdamien 1554145247Sdamien case SIOCSKILLFW: 1555145247Sdamien /* only super-user can do that! */ 1556145247Sdamien if ((error = suser(curthread)) != 0) 1557145247Sdamien break; 1558145247Sdamien 1559145247Sdamien ifp->if_flags &= ~IFF_UP; 1560145247Sdamien ipw_stop(sc); 1561145247Sdamien ipw_free_firmware(sc); 1562145247Sdamien break; 1563145247Sdamien 1564145247Sdamien default: 1565145247Sdamien error = ieee80211_ioctl(ic, cmd, data); 1566145247Sdamien } 1567145247Sdamien 1568145247Sdamien if (error == ENETRESET) { 1569145247Sdamien if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == 1570145247Sdamien (IFF_UP | IFF_RUNNING)) 1571145247Sdamien ipw_init(sc); 1572145247Sdamien error = 0; 1573145247Sdamien } 1574145247Sdamien 1575145247Sdamien IPW_UNLOCK(sc); 1576145247Sdamien 1577145247Sdamien return error; 1578145247Sdamien} 1579145247Sdamien 1580145247Sdamienstatic void 1581145247Sdamienipw_stop_master(struct ipw_softc *sc) 1582145247Sdamien{ 1583145247Sdamien int ntries; 1584145247Sdamien 1585145247Sdamien /* disable interrupts */ 1586145247Sdamien CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0); 1587145247Sdamien 1588145247Sdamien CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_STOP_MASTER); 1589145247Sdamien for (ntries = 0; ntries < 50; ntries++) { 1590145247Sdamien if (CSR_READ_4(sc, IPW_CSR_RST) & IPW_RST_MASTER_DISABLED) 1591145247Sdamien break; 1592145247Sdamien DELAY(10); 1593145247Sdamien } 1594145247Sdamien if (ntries == 50) 1595145247Sdamien device_printf(sc->sc_dev, "timeout waiting for master\n"); 1596145247Sdamien 1597145247Sdamien CSR_WRITE_4(sc, IPW_CSR_RST, CSR_READ_4(sc, IPW_CSR_RST) | 1598145247Sdamien IPW_RST_PRINCETON_RESET); 1599145247Sdamien 1600145247Sdamien sc->flags &= ~IPW_FLAG_FW_INITED; 1601145247Sdamien} 1602145247Sdamien 1603145247Sdamienstatic int 1604145247Sdamienipw_reset(struct ipw_softc *sc) 1605145247Sdamien{ 1606145247Sdamien int ntries; 1607145247Sdamien 1608145247Sdamien ipw_stop_master(sc); 1609145247Sdamien 1610145247Sdamien /* move adapter to D0 state */ 1611145247Sdamien CSR_WRITE_4(sc, IPW_CSR_CTL, CSR_READ_4(sc, IPW_CSR_CTL) | 1612145247Sdamien IPW_CTL_INIT); 1613145247Sdamien 1614145247Sdamien /* wait for clock stabilization */ 1615145247Sdamien for (ntries = 0; ntries < 1000; ntries++) { 1616145247Sdamien if (CSR_READ_4(sc, IPW_CSR_CTL) & IPW_CTL_CLOCK_READY) 1617145247Sdamien break; 1618145247Sdamien DELAY(200); 1619145247Sdamien } 1620145247Sdamien if (ntries == 1000) 1621145247Sdamien return EIO; 1622145247Sdamien 1623145247Sdamien CSR_WRITE_4(sc, IPW_CSR_RST, CSR_READ_4(sc, IPW_CSR_RST) | 1624145247Sdamien IPW_RST_SW_RESET); 1625145247Sdamien 1626145247Sdamien DELAY(10); 1627145247Sdamien 1628145247Sdamien CSR_WRITE_4(sc, IPW_CSR_CTL, CSR_READ_4(sc, IPW_CSR_CTL) | 1629145247Sdamien IPW_CTL_INIT); 1630145247Sdamien 1631145247Sdamien return 0; 1632145247Sdamien} 1633145247Sdamien 1634145247Sdamien/* 1635145247Sdamien * Upload the microcode to the device. 1636145247Sdamien */ 1637145247Sdamienstatic int 1638145247Sdamienipw_load_ucode(struct ipw_softc *sc, u_char *uc, int size) 1639145247Sdamien{ 1640145247Sdamien int ntries; 1641145247Sdamien 1642145247Sdamien MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 1643145247Sdamien CSR_WRITE_4(sc, IPW_CSR_RST, 0); 1644145247Sdamien 1645145247Sdamien MEM_WRITE_2(sc, 0x220000, 0x0703); 1646145247Sdamien MEM_WRITE_2(sc, 0x220000, 0x0707); 1647145247Sdamien 1648145247Sdamien MEM_WRITE_1(sc, 0x210014, 0x72); 1649145247Sdamien MEM_WRITE_1(sc, 0x210014, 0x72); 1650145247Sdamien 1651145247Sdamien MEM_WRITE_1(sc, 0x210000, 0x40); 1652145247Sdamien MEM_WRITE_1(sc, 0x210000, 0x00); 1653145247Sdamien MEM_WRITE_1(sc, 0x210000, 0x40); 1654145247Sdamien 1655145247Sdamien MEM_WRITE_MULTI_1(sc, 0x210010, uc, size); 1656145247Sdamien 1657145247Sdamien MEM_WRITE_1(sc, 0x210000, 0x00); 1658145247Sdamien MEM_WRITE_1(sc, 0x210000, 0x00); 1659145247Sdamien MEM_WRITE_1(sc, 0x210000, 0x80); 1660145247Sdamien 1661145247Sdamien MEM_WRITE_2(sc, 0x220000, 0x0703); 1662145247Sdamien MEM_WRITE_2(sc, 0x220000, 0x0707); 1663145247Sdamien 1664145247Sdamien MEM_WRITE_1(sc, 0x210014, 0x72); 1665145247Sdamien MEM_WRITE_1(sc, 0x210014, 0x72); 1666145247Sdamien 1667145247Sdamien MEM_WRITE_1(sc, 0x210000, 0x00); 1668145247Sdamien MEM_WRITE_1(sc, 0x210000, 0x80); 1669145247Sdamien 1670145247Sdamien for (ntries = 0; ntries < 10; ntries++) { 1671145247Sdamien if (MEM_READ_1(sc, 0x210000) & 1) 1672145247Sdamien break; 1673145247Sdamien DELAY(10); 1674145247Sdamien } 1675145247Sdamien if (ntries == 10) { 1676145247Sdamien device_printf(sc->sc_dev, 1677145247Sdamien "timeout waiting for ucode to initialize\n"); 1678145247Sdamien return EIO; 1679145247Sdamien } 1680145247Sdamien 1681145247Sdamien MEM_WRITE_4(sc, 0x3000e0, 0); 1682145247Sdamien 1683145247Sdamien return 0; 1684145247Sdamien} 1685145247Sdamien 1686145247Sdamien/* set of macros to handle unaligned little endian data in firmware image */ 1687145247Sdamien#define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 1688145247Sdamien#define GETLE16(p) ((p)[0] | (p)[1] << 8) 1689145247Sdamienstatic int 1690145247Sdamienipw_load_firmware(struct ipw_softc *sc, u_char *fw, int size) 1691145247Sdamien{ 1692145247Sdamien u_char *p, *end; 1693145247Sdamien uint32_t dst; 1694145247Sdamien uint16_t len; 1695145247Sdamien int error; 1696145247Sdamien 1697145247Sdamien p = fw; 1698145247Sdamien end = fw + size; 1699145247Sdamien while (p < end) { 1700145247Sdamien dst = GETLE32(p); p += 4; 1701145247Sdamien len = GETLE16(p); p += 2; 1702145247Sdamien 1703145247Sdamien ipw_write_mem_1(sc, dst, p, len); 1704145247Sdamien p += len; 1705145247Sdamien } 1706145247Sdamien 1707145247Sdamien CSR_WRITE_4(sc, IPW_CSR_IO, IPW_IO_GPIO1_ENABLE | IPW_IO_GPIO3_MASK | 1708145247Sdamien IPW_IO_LED_OFF); 1709145247Sdamien 1710145247Sdamien /* enable interrupts */ 1711145247Sdamien CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK); 1712145247Sdamien 1713145247Sdamien /* kick the firmware */ 1714145247Sdamien CSR_WRITE_4(sc, IPW_CSR_RST, 0); 1715145247Sdamien 1716145247Sdamien CSR_WRITE_4(sc, IPW_CSR_CTL, CSR_READ_4(sc, IPW_CSR_CTL) | 1717145247Sdamien IPW_CTL_ALLOW_STANDBY); 1718145247Sdamien 1719145247Sdamien /* wait at most one second for firmware initialization to complete */ 1720145247Sdamien if ((error = msleep(sc, &sc->sc_mtx, 0, "ipwinit", hz)) != 0) { 1721145247Sdamien device_printf(sc->sc_dev, "timeout waiting for firmware " 1722145247Sdamien "initialization to complete\n"); 1723145247Sdamien return error; 1724145247Sdamien } 1725145247Sdamien 1726145247Sdamien CSR_WRITE_4(sc, IPW_CSR_IO, CSR_READ_4(sc, IPW_CSR_IO) | 1727145247Sdamien IPW_IO_GPIO1_MASK | IPW_IO_GPIO3_MASK); 1728145247Sdamien 1729145247Sdamien return 0; 1730145247Sdamien} 1731145247Sdamien 1732145247Sdamien/* 1733145247Sdamien * Store firmware into kernel memory so we can download it when we need to, 1734145247Sdamien * e.g when the adapter wakes up from suspend mode. 1735145247Sdamien */ 1736145247Sdamienstatic int 1737145247Sdamienipw_cache_firmware(struct ipw_softc *sc, void *data) 1738145247Sdamien{ 1739145247Sdamien struct ipw_firmware *fw = &sc->fw; 1740145247Sdamien struct ipw_firmware_hdr hdr; 1741145247Sdamien u_char *p = data; 1742145247Sdamien int error; 1743145247Sdamien 1744145247Sdamien ipw_free_firmware(sc); 1745145247Sdamien 1746145247Sdamien IPW_UNLOCK(sc); 1747145247Sdamien 1748145247Sdamien if ((error = copyin(data, &hdr, sizeof hdr)) != 0) 1749145247Sdamien goto fail1; 1750145247Sdamien 1751145247Sdamien fw->main_size = le32toh(hdr.main_size); 1752145247Sdamien fw->ucode_size = le32toh(hdr.ucode_size); 1753145247Sdamien p += sizeof hdr; 1754145247Sdamien 1755145247Sdamien fw->main = malloc(fw->main_size, M_DEVBUF, M_NOWAIT); 1756145247Sdamien if (fw->main == NULL) { 1757145247Sdamien error = ENOMEM; 1758145247Sdamien goto fail1; 1759145247Sdamien } 1760145247Sdamien 1761145247Sdamien fw->ucode = malloc(fw->ucode_size, M_DEVBUF, M_NOWAIT); 1762145247Sdamien if (fw->ucode == NULL) { 1763145247Sdamien error = ENOMEM; 1764145247Sdamien goto fail2; 1765145247Sdamien } 1766145247Sdamien 1767145247Sdamien if ((error = copyin(p, fw->main, fw->main_size)) != 0) 1768145247Sdamien goto fail3; 1769145247Sdamien 1770145247Sdamien p += fw->main_size; 1771145247Sdamien if ((error = copyin(p, fw->ucode, fw->ucode_size)) != 0) 1772145247Sdamien goto fail3; 1773145247Sdamien 1774145247Sdamien DPRINTF(("Firmware cached: main %u, ucode %u\n", fw->main_size, 1775145247Sdamien fw->ucode_size)); 1776145247Sdamien 1777145247Sdamien IPW_LOCK(sc); 1778145247Sdamien 1779145247Sdamien sc->flags |= IPW_FLAG_FW_CACHED; 1780145247Sdamien 1781145247Sdamien return 0; 1782145247Sdamien 1783145247Sdamienfail3: free(fw->ucode, M_DEVBUF); 1784145247Sdamienfail2: free(fw->main, M_DEVBUF); 1785145247Sdamienfail1: IPW_LOCK(sc); 1786145247Sdamien 1787145247Sdamien return error; 1788145247Sdamien} 1789145247Sdamien 1790145247Sdamienstatic void 1791145247Sdamienipw_free_firmware(struct ipw_softc *sc) 1792145247Sdamien{ 1793145247Sdamien if (!(sc->flags & IPW_FLAG_FW_CACHED)) 1794145247Sdamien return; 1795145247Sdamien 1796145247Sdamien free(sc->fw.main, M_DEVBUF); 1797145247Sdamien free(sc->fw.ucode, M_DEVBUF); 1798145247Sdamien 1799145247Sdamien sc->flags &= ~IPW_FLAG_FW_CACHED; 1800145247Sdamien} 1801145247Sdamien 1802145247Sdamienstatic int 1803145247Sdamienipw_config(struct ipw_softc *sc) 1804145247Sdamien{ 1805145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 1806145247Sdamien struct ifnet *ifp = ic->ic_ifp; 1807145247Sdamien struct ipw_security security; 1808145247Sdamien struct ieee80211_key *k; 1809145247Sdamien struct ipw_wep_key wepkey; 1810145247Sdamien struct ipw_scan_options options; 1811145247Sdamien struct ipw_configuration config; 1812145247Sdamien uint32_t data; 1813145247Sdamien int error, i; 1814145247Sdamien 1815145247Sdamien switch (ic->ic_opmode) { 1816145247Sdamien case IEEE80211_M_STA: 1817145247Sdamien case IEEE80211_M_HOSTAP: 1818145247Sdamien data = htole32(IPW_MODE_BSS); 1819145247Sdamien break; 1820145247Sdamien 1821145247Sdamien case IEEE80211_M_IBSS: 1822145247Sdamien case IEEE80211_M_AHDEMO: 1823145247Sdamien data = htole32(IPW_MODE_IBSS); 1824145247Sdamien break; 1825145247Sdamien 1826145247Sdamien case IEEE80211_M_MONITOR: 1827145247Sdamien data = htole32(IPW_MODE_MONITOR); 1828145247Sdamien break; 1829145247Sdamien } 1830145247Sdamien DPRINTF(("Setting mode to %u\n", le32toh(data))); 1831145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_MODE, &data, sizeof data); 1832145247Sdamien if (error != 0) 1833145247Sdamien return error; 1834145247Sdamien 1835145247Sdamien if (ic->ic_opmode == IEEE80211_M_IBSS || 1836145247Sdamien ic->ic_opmode == IEEE80211_M_MONITOR) { 1837145247Sdamien data = htole32(ieee80211_chan2ieee(ic, ic->ic_ibss_chan)); 1838145247Sdamien DPRINTF(("Setting channel to %u\n", le32toh(data))); 1839145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_CHANNEL, &data, sizeof data); 1840145247Sdamien if (error != 0) 1841145247Sdamien return error; 1842145247Sdamien } 1843145247Sdamien 1844145247Sdamien if (ic->ic_opmode == IEEE80211_M_MONITOR) { 1845145247Sdamien DPRINTF(("Enabling adapter\n")); 1846145247Sdamien return ipw_cmd(sc, IPW_CMD_ENABLE, NULL, 0); 1847145247Sdamien } 1848145247Sdamien 1849145247Sdamien IEEE80211_ADDR_COPY(ic->ic_myaddr, IF_LLADDR(ifp)); 1850145247Sdamien DPRINTF(("Setting MAC address to %6D\n", ic->ic_myaddr, ":")); 1851145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_MAC_ADDRESS, ic->ic_myaddr, 1852145247Sdamien IEEE80211_ADDR_LEN); 1853145247Sdamien if (error != 0) 1854145247Sdamien return error; 1855145247Sdamien 1856145247Sdamien config.flags = htole32(IPW_CFG_BSS_MASK | IPW_CFG_IBSS_MASK | 1857145247Sdamien IPW_CFG_PREAMBLE_AUTO | IPW_CFG_802_1x_ENABLE); 1858145247Sdamien if (ic->ic_opmode == IEEE80211_M_IBSS) 1859145247Sdamien config.flags |= htole32(IPW_CFG_IBSS_AUTO_START); 1860145247Sdamien if (ifp->if_flags & IFF_PROMISC) 1861145247Sdamien config.flags |= htole32(IPW_CFG_PROMISCUOUS); 1862145247Sdamien config.bss_chan = htole32(0x3fff); /* channels 1-14 */ 1863145247Sdamien config.ibss_chan = htole32(0x7ff); /* channels 1-11 */ 1864145247Sdamien DPRINTF(("Setting configuration to 0x%x\n", le32toh(config.flags))); 1865145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_CONFIGURATION, &config, sizeof config); 1866145247Sdamien if (error != 0) 1867145247Sdamien return error; 1868145247Sdamien 1869145247Sdamien data = htole32(0x3); /* 1, 2 */ 1870145247Sdamien DPRINTF(("Setting basic tx rates to 0x%x\n", le32toh(data))); 1871145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_BASIC_TX_RATES, &data, sizeof data); 1872145247Sdamien if (error != 0) 1873145247Sdamien return error; 1874145247Sdamien 1875145247Sdamien data = htole32(0xf); /* 1, 2, 5.5, 11 */ 1876145247Sdamien DPRINTF(("Setting tx rates to 0x%x\n", le32toh(data))); 1877145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_TX_RATES, &data, sizeof data); 1878145247Sdamien if (error != 0) 1879145247Sdamien return error; 1880145247Sdamien 1881145247Sdamien data = htole32(IPW_POWER_MODE_CAM); 1882145247Sdamien DPRINTF(("Setting power mode to %u\n", le32toh(data))); 1883145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_POWER_MODE, &data, sizeof data); 1884145247Sdamien if (error != 0) 1885145247Sdamien return error; 1886145247Sdamien 1887145247Sdamien if (ic->ic_opmode == IEEE80211_M_IBSS) { 1888145247Sdamien data = htole32(32); /* default value */ 1889145247Sdamien DPRINTF(("Setting tx power index to %u\n", le32toh(data))); 1890145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_TX_POWER_INDEX, &data, 1891145247Sdamien sizeof data); 1892145247Sdamien if (error != 0) 1893145247Sdamien return error; 1894145247Sdamien } 1895145247Sdamien 1896145247Sdamien data = htole32(ic->ic_rtsthreshold); 1897145247Sdamien DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 1898145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_RTS_THRESHOLD, &data, sizeof data); 1899145247Sdamien if (error != 0) 1900145247Sdamien return error; 1901145247Sdamien 1902145247Sdamien data = htole32(ic->ic_fragthreshold); 1903145247Sdamien DPRINTF(("Setting frag threshold to %u\n", le32toh(data))); 1904145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_FRAG_THRESHOLD, &data, sizeof data); 1905145247Sdamien if (error != 0) 1906145247Sdamien return error; 1907145247Sdamien 1908145247Sdamien#ifdef IPW_DEBUG 1909145247Sdamien if (ipw_debug > 0) { 1910145247Sdamien printf("Setting ESSID to "); 1911145247Sdamien ieee80211_print_essid(ic->ic_des_essid, ic->ic_des_esslen); 1912145247Sdamien printf("\n"); 1913145247Sdamien } 1914145247Sdamien#endif 1915145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_ESSID, ic->ic_des_essid, 1916145247Sdamien ic->ic_des_esslen); 1917145247Sdamien if (error != 0) 1918145247Sdamien return error; 1919145247Sdamien 1920145247Sdamien /* no mandatory BSSID */ 1921145247Sdamien DPRINTF(("Setting mandatory BSSID to null\n")); 1922145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_MANDATORY_BSSID, NULL, 0); 1923145247Sdamien if (error != 0) 1924145247Sdamien return error; 1925145247Sdamien 1926145247Sdamien if (ic->ic_flags & IEEE80211_F_DESBSSID) { 1927145247Sdamien DPRINTF(("Setting desired BSSID to %6D\n", ic->ic_des_bssid, 1928145247Sdamien ":")); 1929145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_DESIRED_BSSID, 1930145247Sdamien ic->ic_des_bssid, IEEE80211_ADDR_LEN); 1931145247Sdamien if (error != 0) 1932145247Sdamien return error; 1933145247Sdamien } 1934145247Sdamien 1935145247Sdamien bzero(&security, sizeof security); 1936145247Sdamien security.authmode = (ic->ic_bss->ni_authmode == IEEE80211_AUTH_SHARED) ? 1937145247Sdamien IPW_AUTH_SHARED : IPW_AUTH_OPEN; 1938145247Sdamien security.ciphers = htole32(IPW_CIPHER_NONE); 1939145247Sdamien DPRINTF(("Setting authmode to %u\n", security.authmode)); 1940145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_SECURITY_INFORMATION, &security, 1941145247Sdamien sizeof security); 1942145247Sdamien if (error != 0) 1943145247Sdamien return error; 1944145247Sdamien 1945145247Sdamien if (ic->ic_flags & IEEE80211_F_PRIVACY) { 1946145247Sdamien k = ic->ic_crypto.cs_nw_keys; 1947145247Sdamien for (i = 0; i < IEEE80211_WEP_NKID; i++, k++) { 1948145247Sdamien if (k->wk_keylen == 0) 1949145247Sdamien continue; 1950145247Sdamien 1951145247Sdamien wepkey.idx = i; 1952145247Sdamien wepkey.len = k->wk_keylen; 1953145247Sdamien bzero(wepkey.key, sizeof wepkey.key); 1954145247Sdamien bcopy(k->wk_key, wepkey.key, k->wk_keylen); 1955145247Sdamien DPRINTF(("Setting wep key index %u len %u\n", 1956145247Sdamien wepkey.idx, wepkey.len)); 1957145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY, &wepkey, 1958145247Sdamien sizeof wepkey); 1959145247Sdamien if (error != 0) 1960145247Sdamien return error; 1961145247Sdamien } 1962145247Sdamien 1963145247Sdamien data = htole32(ic->ic_crypto.cs_def_txkey); 1964145247Sdamien DPRINTF(("Setting wep tx key index to %u\n", le32toh(data))); 1965145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY_INDEX, &data, 1966145247Sdamien sizeof data); 1967145247Sdamien if (error != 0) 1968145247Sdamien return error; 1969145247Sdamien } 1970145247Sdamien 1971145247Sdamien data = htole32((ic->ic_flags & IEEE80211_F_PRIVACY) ? IPW_WEPON : 0); 1972145247Sdamien DPRINTF(("Setting wep flags to 0x%x\n", le32toh(data))); 1973145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_WEP_FLAGS, &data, sizeof data); 1974145247Sdamien if (error != 0) 1975145247Sdamien return error; 1976145247Sdamien 1977145247Sdamien#if 0 1978145247Sdamien struct ipw_wpa_ie ie; 1979145247Sdamien 1980145247Sdamien bzero(&ie, sizeof ie); 1981145247Sdamien ie.len = htole32(sizeof (struct ieee80211_ie_wpa)); 1982145247Sdamien DPRINTF(("Setting wpa ie\n")); 1983145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_WPA_IE, &ie, sizeof ie); 1984145247Sdamien if (error != 0) 1985145247Sdamien return error; 1986145247Sdamien#endif 1987145247Sdamien 1988145247Sdamien if (ic->ic_opmode == IEEE80211_M_IBSS) { 1989145247Sdamien data = htole32(ic->ic_lintval); 1990145247Sdamien DPRINTF(("Setting beacon interval to %u\n", le32toh(data))); 1991145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_BEACON_INTERVAL, &data, 1992145247Sdamien sizeof data); 1993145247Sdamien if (error != 0) 1994145247Sdamien return error; 1995145247Sdamien } 1996145247Sdamien 1997145247Sdamien options.flags = 0; 1998145247Sdamien options.channels = htole32(0x3fff); /* scan channels 1-14 */ 1999145247Sdamien DPRINTF(("Setting scan options to 0x%x\n", le32toh(options.flags))); 2000145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_SCAN_OPTIONS, &options, sizeof options); 2001145247Sdamien if (error != 0) 2002145247Sdamien return error; 2003145247Sdamien 2004145247Sdamien /* finally, enable adapter (start scanning for an access point) */ 2005145247Sdamien DPRINTF(("Enabling adapter\n")); 2006145247Sdamien return ipw_cmd(sc, IPW_CMD_ENABLE, NULL, 0); 2007145247Sdamien} 2008145247Sdamien 2009145247Sdamienstatic void 2010145247Sdamienipw_init(void *priv) 2011145247Sdamien{ 2012145247Sdamien struct ipw_softc *sc = priv; 2013145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 2014145247Sdamien struct ifnet *ifp = ic->ic_ifp; 2015145247Sdamien struct ipw_firmware *fw = &sc->fw; 2016145247Sdamien 2017145247Sdamien /* exit immediately if firmware has not been ioctl'd */ 2018145247Sdamien if (!(sc->flags & IPW_FLAG_FW_CACHED)) { 2019145247Sdamien ifp->if_flags &= ~IFF_UP; 2020145247Sdamien return; 2021145247Sdamien } 2022145247Sdamien 2023145247Sdamien ipw_stop(sc); 2024145247Sdamien 2025145247Sdamien if (ipw_reset(sc) != 0) { 2026145247Sdamien device_printf(sc->sc_dev, "could not reset adapter\n"); 2027145247Sdamien goto fail; 2028145247Sdamien } 2029145247Sdamien 2030145247Sdamien if (ipw_load_ucode(sc, fw->ucode, fw->ucode_size) != 0) { 2031145247Sdamien device_printf(sc->sc_dev, "could not load microcode\n"); 2032145247Sdamien goto fail; 2033145247Sdamien } 2034145247Sdamien 2035145247Sdamien ipw_stop_master(sc); 2036145247Sdamien 2037145247Sdamien /* 2038145247Sdamien * Setup tx, rx and status rings. 2039145247Sdamien */ 2040145247Sdamien sc->txold = IPW_NTBD - 1; 2041145247Sdamien sc->txcur = 0; 2042145247Sdamien sc->txfree = IPW_NTBD - 2; 2043145247Sdamien sc->rxcur = IPW_NRBD - 1; 2044145247Sdamien 2045145247Sdamien CSR_WRITE_4(sc, IPW_CSR_TX_BASE, sc->tbd_phys); 2046145247Sdamien CSR_WRITE_4(sc, IPW_CSR_TX_SIZE, IPW_NTBD); 2047145247Sdamien CSR_WRITE_4(sc, IPW_CSR_TX_READ, 0); 2048145247Sdamien CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur); 2049145247Sdamien 2050145247Sdamien CSR_WRITE_4(sc, IPW_CSR_RX_BASE, sc->rbd_phys); 2051145247Sdamien CSR_WRITE_4(sc, IPW_CSR_RX_SIZE, IPW_NRBD); 2052145247Sdamien CSR_WRITE_4(sc, IPW_CSR_RX_READ, 0); 2053145247Sdamien CSR_WRITE_4(sc, IPW_CSR_RX_WRITE, sc->rxcur); 2054145247Sdamien 2055145247Sdamien CSR_WRITE_4(sc, IPW_CSR_STATUS_BASE, sc->status_phys); 2056145247Sdamien 2057145247Sdamien if (ipw_load_firmware(sc, fw->main, fw->main_size) != 0) { 2058145247Sdamien device_printf(sc->sc_dev, "could not load firmware\n"); 2059145247Sdamien goto fail; 2060145247Sdamien } 2061145247Sdamien 2062145247Sdamien sc->flags |= IPW_FLAG_FW_INITED; 2063145247Sdamien 2064145247Sdamien /* retrieve information tables base addresses */ 2065145247Sdamien sc->table1_base = CSR_READ_4(sc, IPW_CSR_TABLE1_BASE); 2066145247Sdamien sc->table2_base = CSR_READ_4(sc, IPW_CSR_TABLE2_BASE); 2067145247Sdamien 2068145247Sdamien ipw_write_table1(sc, IPW_INFO_LOCK, 0); 2069145247Sdamien 2070145247Sdamien if (ipw_config(sc) != 0) { 2071145247Sdamien device_printf(sc->sc_dev, "device configuration failed\n"); 2072145247Sdamien goto fail; 2073145247Sdamien } 2074145247Sdamien 2075145247Sdamien ifp->if_flags &= ~IFF_OACTIVE; 2076145247Sdamien ifp->if_flags |= IFF_RUNNING; 2077145247Sdamien 2078145247Sdamien return; 2079145247Sdamien 2080145247Sdamienfail: ifp->if_flags &= ~IFF_UP; 2081145247Sdamien ipw_stop(sc); 2082145247Sdamien} 2083145247Sdamien 2084145247Sdamienstatic void 2085145247Sdamienipw_stop(void *priv) 2086145247Sdamien{ 2087145247Sdamien struct ipw_softc *sc = priv; 2088145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 2089145247Sdamien struct ifnet *ifp = ic->ic_ifp; 2090145247Sdamien int i; 2091145247Sdamien 2092145247Sdamien ipw_stop_master(sc); 2093145247Sdamien 2094145247Sdamien CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_SW_RESET); 2095145247Sdamien 2096145247Sdamien /* 2097145247Sdamien * Release tx buffers. 2098145247Sdamien */ 2099145247Sdamien for (i = 0; i < IPW_NTBD; i++) 2100145247Sdamien ipw_release_sbd(sc, &sc->stbd_list[i]); 2101145247Sdamien 2102145247Sdamien sc->sc_tx_timer = 0; 2103145247Sdamien ifp->if_timer = 0; 2104145247Sdamien ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 2105145247Sdamien 2106145247Sdamien ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 2107145247Sdamien} 2108145247Sdamien 2109145247Sdamien#ifdef IPW_DEBUG 2110145247Sdamienstatic int 2111145247Sdamienipw_sysctl_stats(SYSCTL_HANDLER_ARGS) 2112145247Sdamien{ 2113145247Sdamien struct ipw_softc *sc = arg1; 2114145247Sdamien uint32_t i, size, buf[256]; 2115145247Sdamien 2116145247Sdamien if (!(sc->flags & IPW_FLAG_FW_INITED)) { 2117145247Sdamien bzero(buf, sizeof buf); 2118145247Sdamien return SYSCTL_OUT(req, buf, sizeof buf); 2119145247Sdamien } 2120145247Sdamien 2121145247Sdamien CSR_WRITE_4(sc, IPW_CSR_AUTOINC_ADDR, sc->table1_base); 2122145247Sdamien 2123145247Sdamien size = min(CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA), 256); 2124145247Sdamien for (i = 1; i < size; i++) 2125145247Sdamien buf[i] = MEM_READ_4(sc, CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA)); 2126145247Sdamien 2127145247Sdamien return SYSCTL_OUT(req, buf, sizeof buf); 2128145247Sdamien} 2129145247Sdamien#endif 2130145247Sdamien 2131145247Sdamienstatic int 2132145247Sdamienipw_sysctl_radio(SYSCTL_HANDLER_ARGS) 2133145247Sdamien{ 2134145247Sdamien struct ipw_softc *sc = arg1; 2135145247Sdamien int val; 2136145247Sdamien 2137145247Sdamien val = !((sc->flags & IPW_FLAG_HAS_RADIO_SWITCH) && 2138145247Sdamien (CSR_READ_4(sc, IPW_CSR_IO) & IPW_IO_RADIO_DISABLED)); 2139145247Sdamien 2140145247Sdamien return SYSCTL_OUT(req, &val, sizeof val); 2141145247Sdamien} 2142145247Sdamien 2143145247Sdamienstatic uint32_t 2144145247Sdamienipw_read_table1(struct ipw_softc *sc, uint32_t off) 2145145247Sdamien{ 2146145247Sdamien return MEM_READ_4(sc, MEM_READ_4(sc, sc->table1_base + off)); 2147145247Sdamien} 2148145247Sdamien 2149145247Sdamienstatic void 2150145247Sdamienipw_write_table1(struct ipw_softc *sc, uint32_t off, uint32_t info) 2151145247Sdamien{ 2152145247Sdamien MEM_WRITE_4(sc, MEM_READ_4(sc, sc->table1_base + off), info); 2153145247Sdamien} 2154145247Sdamien 2155145247Sdamienstatic int 2156145247Sdamienipw_read_table2(struct ipw_softc *sc, uint32_t off, void *buf, uint32_t *len) 2157145247Sdamien{ 2158145247Sdamien uint32_t addr, info; 2159145247Sdamien uint16_t count, size; 2160145247Sdamien uint32_t total; 2161145247Sdamien 2162145247Sdamien /* addr[4] + count[2] + size[2] */ 2163145247Sdamien addr = MEM_READ_4(sc, sc->table2_base + off); 2164145247Sdamien info = MEM_READ_4(sc, sc->table2_base + off + 4); 2165145247Sdamien 2166145247Sdamien count = info >> 16; 2167145247Sdamien size = info & 0xffff; 2168145247Sdamien total = count * size; 2169145247Sdamien 2170145247Sdamien if (total > *len) { 2171145247Sdamien *len = total; 2172145247Sdamien return EINVAL; 2173145247Sdamien } 2174145247Sdamien 2175145247Sdamien *len = total; 2176145247Sdamien ipw_read_mem_1(sc, addr, buf, total); 2177145247Sdamien 2178145247Sdamien return 0; 2179145247Sdamien} 2180145247Sdamien 2181145247Sdamienstatic void 2182145247Sdamienipw_read_mem_1(struct ipw_softc *sc, bus_size_t offset, uint8_t *datap, 2183145247Sdamien bus_size_t count) 2184145247Sdamien{ 2185145247Sdamien for (; count > 0; offset++, datap++, count--) { 2186145247Sdamien CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3); 2187145247Sdamien *datap = CSR_READ_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3)); 2188145247Sdamien } 2189145247Sdamien} 2190145247Sdamien 2191145247Sdamienstatic void 2192145247Sdamienipw_write_mem_1(struct ipw_softc *sc, bus_size_t offset, uint8_t *datap, 2193145247Sdamien bus_size_t count) 2194145247Sdamien{ 2195145247Sdamien for (; count > 0; offset++, datap++, count--) { 2196145247Sdamien CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3); 2197145247Sdamien CSR_WRITE_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3), *datap); 2198145247Sdamien } 2199145247Sdamien} 2200