if_wpi.c revision 200530
1173362Sbenjsc/*- 2173362Sbenjsc * Copyright (c) 2006,2007 3173362Sbenjsc * Damien Bergamini <damien.bergamini@free.fr> 4173362Sbenjsc * Benjamin Close <Benjamin.Close@clearchain.com> 5173362Sbenjsc * 6173362Sbenjsc * Permission to use, copy, modify, and distribute this software for any 7173362Sbenjsc * purpose with or without fee is hereby granted, provided that the above 8173362Sbenjsc * copyright notice and this permission notice appear in all copies. 9173362Sbenjsc * 10173362Sbenjsc * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11173362Sbenjsc * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12173362Sbenjsc * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13173362Sbenjsc * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14173362Sbenjsc * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15173362Sbenjsc * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16173362Sbenjsc * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17173362Sbenjsc */ 18173362Sbenjsc 19173977Sbenjsc#define VERSION "20071127" 20173362Sbenjsc 21173362Sbenjsc#include <sys/cdefs.h> 22173362Sbenjsc__FBSDID("$FreeBSD: head/sys/dev/wpi/if_wpi.c 200530 2009-12-14 19:18:02Z gavin $"); 23173362Sbenjsc 24173362Sbenjsc/* 25173362Sbenjsc * Driver for Intel PRO/Wireless 3945ABG 802.11 network adapters. 26173362Sbenjsc * 27173362Sbenjsc * The 3945ABG network adapter doesn't use traditional hardware as 28173362Sbenjsc * many other adaptors do. Instead at run time the eeprom is set into a known 29173362Sbenjsc * state and told to load boot firmware. The boot firmware loads an init and a 30173362Sbenjsc * main binary firmware image into SRAM on the card via DMA. 31173362Sbenjsc * Once the firmware is loaded, the driver/hw then 32173362Sbenjsc * communicate by way of circular dma rings via the the SRAM to the firmware. 33173362Sbenjsc * 34173362Sbenjsc * There is 6 memory rings. 1 command ring, 1 rx data ring & 4 tx data rings. 35173362Sbenjsc * The 4 tx data rings allow for prioritization QoS. 36173362Sbenjsc * 37173362Sbenjsc * The rx data ring consists of 32 dma buffers. Two registers are used to 38173362Sbenjsc * indicate where in the ring the driver and the firmware are up to. The 39173362Sbenjsc * driver sets the initial read index (reg1) and the initial write index (reg2), 40173362Sbenjsc * the firmware updates the read index (reg1) on rx of a packet and fires an 41173362Sbenjsc * interrupt. The driver then processes the buffers starting at reg1 indicating 42173362Sbenjsc * to the firmware which buffers have been accessed by updating reg2. At the 43173362Sbenjsc * same time allocating new memory for the processed buffer. 44173362Sbenjsc * 45173362Sbenjsc * A similar thing happens with the tx rings. The difference is the firmware 46173362Sbenjsc * stop processing buffers once the queue is full and until confirmation 47173362Sbenjsc * of a successful transmition (tx_intr) has occurred. 48173362Sbenjsc * 49173362Sbenjsc * The command ring operates in the same manner as the tx queues. 50173362Sbenjsc * 51173362Sbenjsc * All communication direct to the card (ie eeprom) is classed as Stage1 52173362Sbenjsc * communication 53173362Sbenjsc * 54173362Sbenjsc * All communication via the firmware to the card is classed as State2. 55173362Sbenjsc * The firmware consists of 2 parts. A bootstrap firmware and a runtime 56173362Sbenjsc * firmware. The bootstrap firmware and runtime firmware are loaded 57173362Sbenjsc * from host memory via dma to the card then told to execute. From this point 58173362Sbenjsc * on the majority of communications between the driver and the card goes 59173362Sbenjsc * via the firmware. 60173362Sbenjsc */ 61173362Sbenjsc 62173362Sbenjsc#include <sys/param.h> 63173362Sbenjsc#include <sys/sysctl.h> 64173362Sbenjsc#include <sys/sockio.h> 65173362Sbenjsc#include <sys/mbuf.h> 66173362Sbenjsc#include <sys/kernel.h> 67173362Sbenjsc#include <sys/socket.h> 68173362Sbenjsc#include <sys/systm.h> 69173362Sbenjsc#include <sys/malloc.h> 70173362Sbenjsc#include <sys/queue.h> 71173362Sbenjsc#include <sys/taskqueue.h> 72173362Sbenjsc#include <sys/module.h> 73173362Sbenjsc#include <sys/bus.h> 74173362Sbenjsc#include <sys/endian.h> 75173362Sbenjsc#include <sys/linker.h> 76173362Sbenjsc#include <sys/firmware.h> 77173362Sbenjsc 78173362Sbenjsc#include <machine/bus.h> 79173362Sbenjsc#include <machine/resource.h> 80173362Sbenjsc#include <sys/rman.h> 81173362Sbenjsc 82173362Sbenjsc#include <dev/pci/pcireg.h> 83173362Sbenjsc#include <dev/pci/pcivar.h> 84173362Sbenjsc 85173362Sbenjsc#include <net/bpf.h> 86173362Sbenjsc#include <net/if.h> 87173362Sbenjsc#include <net/if_arp.h> 88173362Sbenjsc#include <net/ethernet.h> 89173362Sbenjsc#include <net/if_dl.h> 90173362Sbenjsc#include <net/if_media.h> 91173362Sbenjsc#include <net/if_types.h> 92173362Sbenjsc 93173362Sbenjsc#include <net80211/ieee80211_var.h> 94173362Sbenjsc#include <net80211/ieee80211_radiotap.h> 95173362Sbenjsc#include <net80211/ieee80211_regdomain.h> 96173362Sbenjsc 97173362Sbenjsc#include <netinet/in.h> 98173362Sbenjsc#include <netinet/in_systm.h> 99173362Sbenjsc#include <netinet/in_var.h> 100173362Sbenjsc#include <netinet/ip.h> 101173362Sbenjsc#include <netinet/if_ether.h> 102173362Sbenjsc 103173362Sbenjsc#include <dev/wpi/if_wpireg.h> 104173362Sbenjsc#include <dev/wpi/if_wpivar.h> 105173362Sbenjsc 106199037Sdougb#define WPI_DEBUG 107199037Sdougb 108173362Sbenjsc#ifdef WPI_DEBUG 109173362Sbenjsc#define DPRINTF(x) do { if (wpi_debug != 0) printf x; } while (0) 110173362Sbenjsc#define DPRINTFN(n, x) do { if (wpi_debug & n) printf x; } while (0) 111179957Sthompsa#define WPI_DEBUG_SET (wpi_debug != 0) 112173362Sbenjsc 113173362Sbenjscenum { 114173362Sbenjsc WPI_DEBUG_UNUSED = 0x00000001, /* Unused */ 115173362Sbenjsc WPI_DEBUG_HW = 0x00000002, /* Stage 1 (eeprom) debugging */ 116173362Sbenjsc WPI_DEBUG_TX = 0x00000004, /* Stage 2 TX intrp debugging*/ 117173362Sbenjsc WPI_DEBUG_RX = 0x00000008, /* Stage 2 RX intrp debugging */ 118173362Sbenjsc WPI_DEBUG_CMD = 0x00000010, /* Stage 2 CMD intrp debugging*/ 119173362Sbenjsc WPI_DEBUG_FIRMWARE = 0x00000020, /* firmware(9) loading debug */ 120173362Sbenjsc WPI_DEBUG_DMA = 0x00000040, /* DMA (de)allocations/syncs */ 121173362Sbenjsc WPI_DEBUG_SCANNING = 0x00000080, /* Stage 2 Scanning debugging */ 122173362Sbenjsc WPI_DEBUG_NOTIFY = 0x00000100, /* State 2 Noftif intr debug */ 123173362Sbenjsc WPI_DEBUG_TEMP = 0x00000200, /* TXPower/Temp Calibration */ 124173362Sbenjsc WPI_DEBUG_OPS = 0x00000400, /* wpi_ops taskq debug */ 125173362Sbenjsc WPI_DEBUG_WATCHDOG = 0x00000800, /* Watch dog debug */ 126173362Sbenjsc WPI_DEBUG_ANY = 0xffffffff 127173362Sbenjsc}; 128173362Sbenjsc 129199037Sdougbstatic int wpi_debug = 0; 130173362SbenjscSYSCTL_INT(_debug, OID_AUTO, wpi, CTLFLAG_RW, &wpi_debug, 0, "wpi debug level"); 131179957SthompsaTUNABLE_INT("debug.wpi", &wpi_debug); 132173362Sbenjsc 133173362Sbenjsc#else 134173362Sbenjsc#define DPRINTF(x) 135173362Sbenjsc#define DPRINTFN(n, x) 136179957Sthompsa#define WPI_DEBUG_SET 0 137173362Sbenjsc#endif 138173362Sbenjsc 139173362Sbenjscstruct wpi_ident { 140173362Sbenjsc uint16_t vendor; 141173362Sbenjsc uint16_t device; 142173362Sbenjsc uint16_t subdevice; 143173362Sbenjsc const char *name; 144173362Sbenjsc}; 145173362Sbenjsc 146173362Sbenjscstatic const struct wpi_ident wpi_ident_table[] = { 147173362Sbenjsc /* The below entries support ABG regardless of the subid */ 148173362Sbenjsc { 0x8086, 0x4222, 0x0, "Intel(R) PRO/Wireless 3945ABG" }, 149173362Sbenjsc { 0x8086, 0x4227, 0x0, "Intel(R) PRO/Wireless 3945ABG" }, 150173362Sbenjsc /* The below entries only support BG */ 151182127Sbenjsc { 0x8086, 0x4222, 0x1005, "Intel(R) PRO/Wireless 3945BG" }, 152182127Sbenjsc { 0x8086, 0x4222, 0x1034, "Intel(R) PRO/Wireless 3945BG" }, 153182127Sbenjsc { 0x8086, 0x4227, 0x1014, "Intel(R) PRO/Wireless 3945BG" }, 154182127Sbenjsc { 0x8086, 0x4222, 0x1044, "Intel(R) PRO/Wireless 3945BG" }, 155173362Sbenjsc { 0, 0, 0, NULL } 156173362Sbenjsc}; 157173362Sbenjsc 158178354Ssamstatic struct ieee80211vap *wpi_vap_create(struct ieee80211com *, 159178354Ssam const char name[IFNAMSIZ], int unit, int opmode, 160178354Ssam int flags, const uint8_t bssid[IEEE80211_ADDR_LEN], 161178354Ssam const uint8_t mac[IEEE80211_ADDR_LEN]); 162178354Ssamstatic void wpi_vap_delete(struct ieee80211vap *); 163173362Sbenjscstatic int wpi_dma_contig_alloc(struct wpi_softc *, struct wpi_dma_info *, 164173362Sbenjsc void **, bus_size_t, bus_size_t, int); 165173362Sbenjscstatic void wpi_dma_contig_free(struct wpi_dma_info *); 166173362Sbenjscstatic void wpi_dma_map_addr(void *, bus_dma_segment_t *, int, int); 167173362Sbenjscstatic int wpi_alloc_shared(struct wpi_softc *); 168173362Sbenjscstatic void wpi_free_shared(struct wpi_softc *); 169173362Sbenjscstatic int wpi_alloc_rx_ring(struct wpi_softc *, struct wpi_rx_ring *); 170173362Sbenjscstatic void wpi_reset_rx_ring(struct wpi_softc *, struct wpi_rx_ring *); 171173362Sbenjscstatic void wpi_free_rx_ring(struct wpi_softc *, struct wpi_rx_ring *); 172173362Sbenjscstatic int wpi_alloc_tx_ring(struct wpi_softc *, struct wpi_tx_ring *, 173173362Sbenjsc int, int); 174173362Sbenjscstatic void wpi_reset_tx_ring(struct wpi_softc *, struct wpi_tx_ring *); 175173362Sbenjscstatic void wpi_free_tx_ring(struct wpi_softc *, struct wpi_tx_ring *); 176179643Ssamstatic struct ieee80211_node *wpi_node_alloc(struct ieee80211vap *, 177179643Ssam const uint8_t mac[IEEE80211_ADDR_LEN]); 178178354Ssamstatic int wpi_newstate(struct ieee80211vap *, enum ieee80211_state, int); 179173362Sbenjscstatic void wpi_mem_lock(struct wpi_softc *); 180173362Sbenjscstatic void wpi_mem_unlock(struct wpi_softc *); 181173362Sbenjscstatic uint32_t wpi_mem_read(struct wpi_softc *, uint16_t); 182173362Sbenjscstatic void wpi_mem_write(struct wpi_softc *, uint16_t, uint32_t); 183173362Sbenjscstatic void wpi_mem_write_region_4(struct wpi_softc *, uint16_t, 184173362Sbenjsc const uint32_t *, int); 185173362Sbenjscstatic uint16_t wpi_read_prom_data(struct wpi_softc *, uint32_t, void *, int); 186173362Sbenjscstatic int wpi_alloc_fwmem(struct wpi_softc *); 187173362Sbenjscstatic void wpi_free_fwmem(struct wpi_softc *); 188173362Sbenjscstatic int wpi_load_firmware(struct wpi_softc *); 189173362Sbenjscstatic void wpi_unload_firmware(struct wpi_softc *); 190173362Sbenjscstatic int wpi_load_microcode(struct wpi_softc *, const uint8_t *, int); 191173362Sbenjscstatic void wpi_rx_intr(struct wpi_softc *, struct wpi_rx_desc *, 192173362Sbenjsc struct wpi_rx_data *); 193173362Sbenjscstatic void wpi_tx_intr(struct wpi_softc *, struct wpi_rx_desc *); 194173362Sbenjscstatic void wpi_cmd_intr(struct wpi_softc *, struct wpi_rx_desc *); 195173362Sbenjscstatic void wpi_notif_intr(struct wpi_softc *); 196173362Sbenjscstatic void wpi_intr(void *); 197173362Sbenjscstatic uint8_t wpi_plcp_signal(int); 198177043Sthompsastatic void wpi_watchdog(void *); 199173362Sbenjscstatic int wpi_tx_data(struct wpi_softc *, struct mbuf *, 200173362Sbenjsc struct ieee80211_node *, int); 201173362Sbenjscstatic void wpi_start(struct ifnet *); 202178354Ssamstatic void wpi_start_locked(struct ifnet *); 203178354Ssamstatic int wpi_raw_xmit(struct ieee80211_node *, struct mbuf *, 204178354Ssam const struct ieee80211_bpf_params *); 205173362Sbenjscstatic void wpi_scan_start(struct ieee80211com *); 206173362Sbenjscstatic void wpi_scan_end(struct ieee80211com *); 207173362Sbenjscstatic void wpi_set_channel(struct ieee80211com *); 208178354Ssamstatic void wpi_scan_curchan(struct ieee80211_scan_state *, unsigned long); 209178354Ssamstatic void wpi_scan_mindwell(struct ieee80211_scan_state *); 210173362Sbenjscstatic int wpi_ioctl(struct ifnet *, u_long, caddr_t); 211190526Ssamstatic void wpi_read_eeprom(struct wpi_softc *, 212190526Ssam uint8_t macaddr[IEEE80211_ADDR_LEN]); 213173362Sbenjscstatic void wpi_read_eeprom_channels(struct wpi_softc *, int); 214173362Sbenjscstatic void wpi_read_eeprom_group(struct wpi_softc *, int); 215173362Sbenjscstatic int wpi_cmd(struct wpi_softc *, int, const void *, int, int); 216173362Sbenjscstatic int wpi_wme_update(struct ieee80211com *); 217173362Sbenjscstatic int wpi_mrr_setup(struct wpi_softc *); 218173362Sbenjscstatic void wpi_set_led(struct wpi_softc *, uint8_t, uint8_t, uint8_t); 219173362Sbenjscstatic void wpi_enable_tsf(struct wpi_softc *, struct ieee80211_node *); 220173362Sbenjsc#if 0 221173362Sbenjscstatic int wpi_setup_beacon(struct wpi_softc *, struct ieee80211_node *); 222173362Sbenjsc#endif 223178354Ssamstatic int wpi_auth(struct wpi_softc *, struct ieee80211vap *); 224178354Ssamstatic int wpi_run(struct wpi_softc *, struct ieee80211vap *); 225173362Sbenjscstatic int wpi_scan(struct wpi_softc *); 226173362Sbenjscstatic int wpi_config(struct wpi_softc *); 227173362Sbenjscstatic void wpi_stop_master(struct wpi_softc *); 228173362Sbenjscstatic int wpi_power_up(struct wpi_softc *); 229173362Sbenjscstatic int wpi_reset(struct wpi_softc *); 230191746Sthompsastatic void wpi_hwreset(void *, int); 231191746Sthompsastatic void wpi_rfreset(void *, int); 232173362Sbenjscstatic void wpi_hw_config(struct wpi_softc *); 233173362Sbenjscstatic void wpi_init(void *); 234177043Sthompsastatic void wpi_init_locked(struct wpi_softc *, int); 235173362Sbenjscstatic void wpi_stop(struct wpi_softc *); 236173362Sbenjscstatic void wpi_stop_locked(struct wpi_softc *); 237173362Sbenjsc 238173362Sbenjscstatic void wpi_newassoc(struct ieee80211_node *, int); 239173362Sbenjscstatic int wpi_set_txpower(struct wpi_softc *, struct ieee80211_channel *, 240173362Sbenjsc int); 241173362Sbenjscstatic void wpi_calib_timeout(void *); 242173362Sbenjscstatic void wpi_power_calibration(struct wpi_softc *, int); 243173362Sbenjscstatic int wpi_get_power_index(struct wpi_softc *, 244173362Sbenjsc struct wpi_power_group *, struct ieee80211_channel *, int); 245179957Sthompsa#ifdef WPI_DEBUG 246173362Sbenjscstatic const char *wpi_cmd_str(int); 247179957Sthompsa#endif 248173362Sbenjscstatic int wpi_probe(device_t); 249173362Sbenjscstatic int wpi_attach(device_t); 250173362Sbenjscstatic int wpi_detach(device_t); 251173362Sbenjscstatic int wpi_shutdown(device_t); 252173362Sbenjscstatic int wpi_suspend(device_t); 253173362Sbenjscstatic int wpi_resume(device_t); 254173362Sbenjsc 255173362Sbenjsc 256173362Sbenjscstatic device_method_t wpi_methods[] = { 257173362Sbenjsc /* Device interface */ 258173362Sbenjsc DEVMETHOD(device_probe, wpi_probe), 259173362Sbenjsc DEVMETHOD(device_attach, wpi_attach), 260173362Sbenjsc DEVMETHOD(device_detach, wpi_detach), 261173362Sbenjsc DEVMETHOD(device_shutdown, wpi_shutdown), 262173362Sbenjsc DEVMETHOD(device_suspend, wpi_suspend), 263173362Sbenjsc DEVMETHOD(device_resume, wpi_resume), 264173362Sbenjsc 265173362Sbenjsc { 0, 0 } 266173362Sbenjsc}; 267173362Sbenjsc 268173362Sbenjscstatic driver_t wpi_driver = { 269173362Sbenjsc "wpi", 270173362Sbenjsc wpi_methods, 271173362Sbenjsc sizeof (struct wpi_softc) 272173362Sbenjsc}; 273173362Sbenjsc 274173362Sbenjscstatic devclass_t wpi_devclass; 275173362Sbenjsc 276173362SbenjscDRIVER_MODULE(wpi, pci, wpi_driver, wpi_devclass, 0, 0); 277173362Sbenjsc 278173362Sbenjscstatic const uint8_t wpi_ridx_to_plcp[] = { 279173362Sbenjsc /* OFDM: IEEE Std 802.11a-1999, pp. 14 Table 80 */ 280173362Sbenjsc /* R1-R4 (ral/ural is R4-R1) */ 281173362Sbenjsc 0xd, 0xf, 0x5, 0x7, 0x9, 0xb, 0x1, 0x3, 282173362Sbenjsc /* CCK: device-dependent */ 283173362Sbenjsc 10, 20, 55, 110 284173362Sbenjsc}; 285173362Sbenjscstatic const uint8_t wpi_ridx_to_rate[] = { 286173362Sbenjsc 12, 18, 24, 36, 48, 72, 96, 108, /* OFDM */ 287173362Sbenjsc 2, 4, 11, 22 /*CCK */ 288173362Sbenjsc}; 289173362Sbenjsc 290173362Sbenjsc 291173362Sbenjscstatic int 292173362Sbenjscwpi_probe(device_t dev) 293173362Sbenjsc{ 294173362Sbenjsc const struct wpi_ident *ident; 295173362Sbenjsc 296173362Sbenjsc for (ident = wpi_ident_table; ident->name != NULL; ident++) { 297173362Sbenjsc if (pci_get_vendor(dev) == ident->vendor && 298173362Sbenjsc pci_get_device(dev) == ident->device) { 299173362Sbenjsc device_set_desc(dev, ident->name); 300173362Sbenjsc return 0; 301173362Sbenjsc } 302173362Sbenjsc } 303173362Sbenjsc return ENXIO; 304173362Sbenjsc} 305173362Sbenjsc 306173362Sbenjsc/** 307173362Sbenjsc * Load the firmare image from disk to the allocated dma buffer. 308173362Sbenjsc * we also maintain the reference to the firmware pointer as there 309173362Sbenjsc * is times where we may need to reload the firmware but we are not 310173362Sbenjsc * in a context that can access the filesystem (ie taskq cause by restart) 311173362Sbenjsc * 312173362Sbenjsc * @return 0 on success, an errno on failure 313173362Sbenjsc */ 314173362Sbenjscstatic int 315173362Sbenjscwpi_load_firmware(struct wpi_softc *sc) 316173362Sbenjsc{ 317178354Ssam const struct firmware *fp; 318173362Sbenjsc struct wpi_dma_info *dma = &sc->fw_dma; 319173362Sbenjsc const struct wpi_firmware_hdr *hdr; 320173362Sbenjsc const uint8_t *itext, *idata, *rtext, *rdata, *btext; 321173362Sbenjsc uint32_t itextsz, idatasz, rtextsz, rdatasz, btextsz; 322173362Sbenjsc int error; 323173362Sbenjsc 324173362Sbenjsc DPRINTFN(WPI_DEBUG_FIRMWARE, 325173362Sbenjsc ("Attempting Loading Firmware from wpi_fw module\n")); 326173362Sbenjsc 327173362Sbenjsc WPI_UNLOCK(sc); 328173362Sbenjsc 329173362Sbenjsc if (sc->fw_fp == NULL && (sc->fw_fp = firmware_get("wpifw")) == NULL) { 330173362Sbenjsc device_printf(sc->sc_dev, 331173362Sbenjsc "could not load firmware image 'wpifw'\n"); 332173362Sbenjsc error = ENOENT; 333173362Sbenjsc WPI_LOCK(sc); 334173362Sbenjsc goto fail; 335173362Sbenjsc } 336173362Sbenjsc 337173362Sbenjsc fp = sc->fw_fp; 338173362Sbenjsc 339173362Sbenjsc WPI_LOCK(sc); 340173362Sbenjsc 341173362Sbenjsc /* Validate the firmware is minimum a particular version */ 342173362Sbenjsc if (fp->version < WPI_FW_MINVERSION) { 343173362Sbenjsc device_printf(sc->sc_dev, 344173362Sbenjsc "firmware version is too old. Need %d, got %d\n", 345173362Sbenjsc WPI_FW_MINVERSION, 346173362Sbenjsc fp->version); 347173362Sbenjsc error = ENXIO; 348173362Sbenjsc goto fail; 349173362Sbenjsc } 350173362Sbenjsc 351173362Sbenjsc if (fp->datasize < sizeof (struct wpi_firmware_hdr)) { 352173362Sbenjsc device_printf(sc->sc_dev, 353173362Sbenjsc "firmware file too short: %zu bytes\n", fp->datasize); 354173362Sbenjsc error = ENXIO; 355173362Sbenjsc goto fail; 356173362Sbenjsc } 357173362Sbenjsc 358173362Sbenjsc hdr = (const struct wpi_firmware_hdr *)fp->data; 359173362Sbenjsc 360173362Sbenjsc /* | RUNTIME FIRMWARE | INIT FIRMWARE | BOOT FW | 361173362Sbenjsc |HDR|<--TEXT-->|<--DATA-->|<--TEXT-->|<--DATA-->|<--TEXT-->| */ 362173362Sbenjsc 363173362Sbenjsc rtextsz = le32toh(hdr->rtextsz); 364173362Sbenjsc rdatasz = le32toh(hdr->rdatasz); 365173362Sbenjsc itextsz = le32toh(hdr->itextsz); 366173362Sbenjsc idatasz = le32toh(hdr->idatasz); 367173362Sbenjsc btextsz = le32toh(hdr->btextsz); 368173362Sbenjsc 369173362Sbenjsc /* check that all firmware segments are present */ 370173362Sbenjsc if (fp->datasize < sizeof (struct wpi_firmware_hdr) + 371173362Sbenjsc rtextsz + rdatasz + itextsz + idatasz + btextsz) { 372173362Sbenjsc device_printf(sc->sc_dev, 373173362Sbenjsc "firmware file too short: %zu bytes\n", fp->datasize); 374173362Sbenjsc error = ENXIO; /* XXX appropriate error code? */ 375173362Sbenjsc goto fail; 376173362Sbenjsc } 377173362Sbenjsc 378173362Sbenjsc /* get pointers to firmware segments */ 379173362Sbenjsc rtext = (const uint8_t *)(hdr + 1); 380173362Sbenjsc rdata = rtext + rtextsz; 381173362Sbenjsc itext = rdata + rdatasz; 382173362Sbenjsc idata = itext + itextsz; 383173362Sbenjsc btext = idata + idatasz; 384173362Sbenjsc 385173362Sbenjsc DPRINTFN(WPI_DEBUG_FIRMWARE, 386173362Sbenjsc ("Firmware Version: Major %d, Minor %d, Driver %d, \n" 387173362Sbenjsc "runtime (text: %u, data: %u) init (text: %u, data %u) boot (text %u)\n", 388173362Sbenjsc (le32toh(hdr->version) & 0xff000000) >> 24, 389173362Sbenjsc (le32toh(hdr->version) & 0x00ff0000) >> 16, 390173362Sbenjsc (le32toh(hdr->version) & 0x0000ffff), 391173362Sbenjsc rtextsz, rdatasz, 392173362Sbenjsc itextsz, idatasz, btextsz)); 393173362Sbenjsc 394173362Sbenjsc DPRINTFN(WPI_DEBUG_FIRMWARE,("rtext 0x%x\n", *(const uint32_t *)rtext)); 395173362Sbenjsc DPRINTFN(WPI_DEBUG_FIRMWARE,("rdata 0x%x\n", *(const uint32_t *)rdata)); 396173362Sbenjsc DPRINTFN(WPI_DEBUG_FIRMWARE,("itext 0x%x\n", *(const uint32_t *)itext)); 397173362Sbenjsc DPRINTFN(WPI_DEBUG_FIRMWARE,("idata 0x%x\n", *(const uint32_t *)idata)); 398173362Sbenjsc DPRINTFN(WPI_DEBUG_FIRMWARE,("btext 0x%x\n", *(const uint32_t *)btext)); 399173362Sbenjsc 400173362Sbenjsc /* sanity checks */ 401173362Sbenjsc if (rtextsz > WPI_FW_MAIN_TEXT_MAXSZ || 402173362Sbenjsc rdatasz > WPI_FW_MAIN_DATA_MAXSZ || 403173362Sbenjsc itextsz > WPI_FW_INIT_TEXT_MAXSZ || 404173362Sbenjsc idatasz > WPI_FW_INIT_DATA_MAXSZ || 405173362Sbenjsc btextsz > WPI_FW_BOOT_TEXT_MAXSZ || 406173362Sbenjsc (btextsz & 3) != 0) { 407173362Sbenjsc device_printf(sc->sc_dev, "firmware invalid\n"); 408173362Sbenjsc error = EINVAL; 409173362Sbenjsc goto fail; 410173362Sbenjsc } 411173362Sbenjsc 412173362Sbenjsc /* copy initialization images into pre-allocated DMA-safe memory */ 413173362Sbenjsc memcpy(dma->vaddr, idata, idatasz); 414173362Sbenjsc memcpy(dma->vaddr + WPI_FW_INIT_DATA_MAXSZ, itext, itextsz); 415173362Sbenjsc 416173362Sbenjsc bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE); 417173362Sbenjsc 418173362Sbenjsc /* tell adapter where to find initialization images */ 419173362Sbenjsc wpi_mem_lock(sc); 420173362Sbenjsc wpi_mem_write(sc, WPI_MEM_DATA_BASE, dma->paddr); 421173362Sbenjsc wpi_mem_write(sc, WPI_MEM_DATA_SIZE, idatasz); 422173362Sbenjsc wpi_mem_write(sc, WPI_MEM_TEXT_BASE, 423173362Sbenjsc dma->paddr + WPI_FW_INIT_DATA_MAXSZ); 424173362Sbenjsc wpi_mem_write(sc, WPI_MEM_TEXT_SIZE, itextsz); 425173362Sbenjsc wpi_mem_unlock(sc); 426173362Sbenjsc 427173362Sbenjsc /* load firmware boot code */ 428173362Sbenjsc if ((error = wpi_load_microcode(sc, btext, btextsz)) != 0) { 429173362Sbenjsc device_printf(sc->sc_dev, "Failed to load microcode\n"); 430173362Sbenjsc goto fail; 431173362Sbenjsc } 432173362Sbenjsc 433173362Sbenjsc /* now press "execute" */ 434173362Sbenjsc WPI_WRITE(sc, WPI_RESET, 0); 435173362Sbenjsc 436173362Sbenjsc /* wait at most one second for the first alive notification */ 437173362Sbenjsc if ((error = msleep(sc, &sc->sc_mtx, PCATCH, "wpiinit", hz)) != 0) { 438173362Sbenjsc device_printf(sc->sc_dev, 439173362Sbenjsc "timeout waiting for adapter to initialize\n"); 440173362Sbenjsc goto fail; 441173362Sbenjsc } 442173362Sbenjsc 443173362Sbenjsc /* copy runtime images into pre-allocated DMA-sage memory */ 444173362Sbenjsc memcpy(dma->vaddr, rdata, rdatasz); 445173362Sbenjsc memcpy(dma->vaddr + WPI_FW_MAIN_DATA_MAXSZ, rtext, rtextsz); 446173362Sbenjsc bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE); 447173362Sbenjsc 448173362Sbenjsc /* tell adapter where to find runtime images */ 449173362Sbenjsc wpi_mem_lock(sc); 450173362Sbenjsc wpi_mem_write(sc, WPI_MEM_DATA_BASE, dma->paddr); 451173362Sbenjsc wpi_mem_write(sc, WPI_MEM_DATA_SIZE, rdatasz); 452173362Sbenjsc wpi_mem_write(sc, WPI_MEM_TEXT_BASE, 453173362Sbenjsc dma->paddr + WPI_FW_MAIN_DATA_MAXSZ); 454173362Sbenjsc wpi_mem_write(sc, WPI_MEM_TEXT_SIZE, WPI_FW_UPDATED | rtextsz); 455173362Sbenjsc wpi_mem_unlock(sc); 456173362Sbenjsc 457173362Sbenjsc /* wait at most one second for the first alive notification */ 458173362Sbenjsc if ((error = msleep(sc, &sc->sc_mtx, PCATCH, "wpiinit", hz)) != 0) { 459173362Sbenjsc device_printf(sc->sc_dev, 460173362Sbenjsc "timeout waiting for adapter to initialize2\n"); 461173362Sbenjsc goto fail; 462173362Sbenjsc } 463173362Sbenjsc 464173362Sbenjsc DPRINTFN(WPI_DEBUG_FIRMWARE, 465173362Sbenjsc ("Firmware loaded to driver successfully\n")); 466173362Sbenjsc return error; 467173362Sbenjscfail: 468173362Sbenjsc wpi_unload_firmware(sc); 469173362Sbenjsc return error; 470173362Sbenjsc} 471173362Sbenjsc 472173362Sbenjsc/** 473173362Sbenjsc * Free the referenced firmware image 474173362Sbenjsc */ 475173362Sbenjscstatic void 476173362Sbenjscwpi_unload_firmware(struct wpi_softc *sc) 477173362Sbenjsc{ 478173362Sbenjsc 479173362Sbenjsc if (sc->fw_fp) { 480173362Sbenjsc WPI_UNLOCK(sc); 481173362Sbenjsc firmware_put(sc->fw_fp, FIRMWARE_UNLOAD); 482173362Sbenjsc WPI_LOCK(sc); 483173362Sbenjsc sc->fw_fp = NULL; 484173362Sbenjsc } 485173362Sbenjsc} 486173362Sbenjsc 487173362Sbenjscstatic int 488173362Sbenjscwpi_attach(device_t dev) 489173362Sbenjsc{ 490173362Sbenjsc struct wpi_softc *sc = device_get_softc(dev); 491173362Sbenjsc struct ifnet *ifp; 492178354Ssam struct ieee80211com *ic; 493173362Sbenjsc int ac, error, supportsa = 1; 494173362Sbenjsc uint32_t tmp; 495173362Sbenjsc const struct wpi_ident *ident; 496190526Ssam uint8_t macaddr[IEEE80211_ADDR_LEN]; 497173362Sbenjsc 498173362Sbenjsc sc->sc_dev = dev; 499173362Sbenjsc 500179957Sthompsa if (bootverbose || WPI_DEBUG_SET) 501173362Sbenjsc device_printf(sc->sc_dev,"Driver Revision %s\n", VERSION); 502173362Sbenjsc 503173362Sbenjsc /* 504173362Sbenjsc * Some card's only support 802.11b/g not a, check to see if 505173362Sbenjsc * this is one such card. A 0x0 in the subdevice table indicates 506173362Sbenjsc * the entire subdevice range is to be ignored. 507173362Sbenjsc */ 508173362Sbenjsc for (ident = wpi_ident_table; ident->name != NULL; ident++) { 509173362Sbenjsc if (ident->subdevice && 510173362Sbenjsc pci_get_subdevice(dev) == ident->subdevice) { 511173362Sbenjsc supportsa = 0; 512173362Sbenjsc break; 513173362Sbenjsc } 514173362Sbenjsc } 515173362Sbenjsc 516173362Sbenjsc /* Create the tasks that can be queued */ 517191746Sthompsa TASK_INIT(&sc->sc_restarttask, 0, wpi_hwreset, sc); 518191746Sthompsa TASK_INIT(&sc->sc_radiotask, 0, wpi_rfreset, sc); 519173362Sbenjsc 520173362Sbenjsc WPI_LOCK_INIT(sc); 521173362Sbenjsc 522173362Sbenjsc callout_init_mtx(&sc->calib_to, &sc->sc_mtx, 0); 523173362Sbenjsc callout_init_mtx(&sc->watchdog_to, &sc->sc_mtx, 0); 524173362Sbenjsc 525173362Sbenjsc if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) { 526173362Sbenjsc device_printf(dev, "chip is in D%d power mode " 527173362Sbenjsc "-- setting to D0\n", pci_get_powerstate(dev)); 528173362Sbenjsc pci_set_powerstate(dev, PCI_POWERSTATE_D0); 529173362Sbenjsc } 530173362Sbenjsc 531173362Sbenjsc /* disable the retry timeout register */ 532173362Sbenjsc pci_write_config(dev, 0x41, 0, 1); 533173362Sbenjsc 534173362Sbenjsc /* enable bus-mastering */ 535173362Sbenjsc pci_enable_busmaster(dev); 536173362Sbenjsc 537173362Sbenjsc sc->mem_rid = PCIR_BAR(0); 538173362Sbenjsc sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid, 539173362Sbenjsc RF_ACTIVE); 540173362Sbenjsc if (sc->mem == NULL) { 541173362Sbenjsc device_printf(dev, "could not allocate memory resource\n"); 542173362Sbenjsc error = ENOMEM; 543173362Sbenjsc goto fail; 544173362Sbenjsc } 545173362Sbenjsc 546173362Sbenjsc sc->sc_st = rman_get_bustag(sc->mem); 547173362Sbenjsc sc->sc_sh = rman_get_bushandle(sc->mem); 548173362Sbenjsc 549173362Sbenjsc sc->irq_rid = 0; 550173362Sbenjsc sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid, 551173362Sbenjsc RF_ACTIVE | RF_SHAREABLE); 552173362Sbenjsc if (sc->irq == NULL) { 553173362Sbenjsc device_printf(dev, "could not allocate interrupt resource\n"); 554173362Sbenjsc error = ENOMEM; 555173362Sbenjsc goto fail; 556173362Sbenjsc } 557173362Sbenjsc 558173362Sbenjsc /* 559173362Sbenjsc * Allocate DMA memory for firmware transfers. 560173362Sbenjsc */ 561173362Sbenjsc if ((error = wpi_alloc_fwmem(sc)) != 0) { 562173362Sbenjsc printf(": could not allocate firmware memory\n"); 563173362Sbenjsc error = ENOMEM; 564173362Sbenjsc goto fail; 565173362Sbenjsc } 566173362Sbenjsc 567173362Sbenjsc /* 568173362Sbenjsc * Put adapter into a known state. 569173362Sbenjsc */ 570173362Sbenjsc if ((error = wpi_reset(sc)) != 0) { 571173362Sbenjsc device_printf(dev, "could not reset adapter\n"); 572173362Sbenjsc goto fail; 573173362Sbenjsc } 574173362Sbenjsc 575173362Sbenjsc wpi_mem_lock(sc); 576173362Sbenjsc tmp = wpi_mem_read(sc, WPI_MEM_PCIDEV); 577179957Sthompsa if (bootverbose || WPI_DEBUG_SET) 578173362Sbenjsc device_printf(sc->sc_dev, "Hardware Revision (0x%X)\n", tmp); 579173362Sbenjsc 580173362Sbenjsc wpi_mem_unlock(sc); 581173362Sbenjsc 582173362Sbenjsc /* Allocate shared page */ 583173362Sbenjsc if ((error = wpi_alloc_shared(sc)) != 0) { 584173362Sbenjsc device_printf(dev, "could not allocate shared page\n"); 585173362Sbenjsc goto fail; 586173362Sbenjsc } 587173362Sbenjsc 588173362Sbenjsc /* tx data queues - 4 for QoS purposes */ 589173362Sbenjsc for (ac = 0; ac < WME_NUM_AC; ac++) { 590173362Sbenjsc error = wpi_alloc_tx_ring(sc, &sc->txq[ac], WPI_TX_RING_COUNT, ac); 591173362Sbenjsc if (error != 0) { 592173362Sbenjsc device_printf(dev, "could not allocate Tx ring %d\n",ac); 593173362Sbenjsc goto fail; 594173362Sbenjsc } 595173362Sbenjsc } 596173362Sbenjsc 597173362Sbenjsc /* command queue to talk to the card's firmware */ 598173362Sbenjsc error = wpi_alloc_tx_ring(sc, &sc->cmdq, WPI_CMD_RING_COUNT, 4); 599173362Sbenjsc if (error != 0) { 600173362Sbenjsc device_printf(dev, "could not allocate command ring\n"); 601173362Sbenjsc goto fail; 602173362Sbenjsc } 603173362Sbenjsc 604173362Sbenjsc /* receive data queue */ 605173362Sbenjsc error = wpi_alloc_rx_ring(sc, &sc->rxq); 606173362Sbenjsc if (error != 0) { 607173362Sbenjsc device_printf(dev, "could not allocate Rx ring\n"); 608173362Sbenjsc goto fail; 609173362Sbenjsc } 610173362Sbenjsc 611178354Ssam ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 612173362Sbenjsc if (ifp == NULL) { 613173362Sbenjsc device_printf(dev, "can not if_alloc()\n"); 614173362Sbenjsc error = ENOMEM; 615173362Sbenjsc goto fail; 616173362Sbenjsc } 617178354Ssam ic = ifp->if_l2com; 618173362Sbenjsc 619173362Sbenjsc ic->ic_ifp = ifp; 620178354Ssam ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 621178354Ssam ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 622173362Sbenjsc 623173362Sbenjsc /* set device capabilities */ 624173362Sbenjsc ic->ic_caps = 625178957Ssam IEEE80211_C_STA /* station mode supported */ 626178957Ssam | IEEE80211_C_MONITOR /* monitor mode supported */ 627173362Sbenjsc | IEEE80211_C_TXPMGT /* tx power management */ 628173362Sbenjsc | IEEE80211_C_SHSLOT /* short slot time supported */ 629173362Sbenjsc | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 630173362Sbenjsc | IEEE80211_C_WPA /* 802.11i */ 631173362Sbenjsc/* XXX looks like WME is partly supported? */ 632173362Sbenjsc#if 0 633173362Sbenjsc | IEEE80211_C_IBSS /* IBSS mode support */ 634173362Sbenjsc | IEEE80211_C_BGSCAN /* capable of bg scanning */ 635173362Sbenjsc | IEEE80211_C_WME /* 802.11e */ 636173362Sbenjsc | IEEE80211_C_HOSTAP /* Host access point mode */ 637173362Sbenjsc#endif 638173362Sbenjsc ; 639173362Sbenjsc 640173362Sbenjsc /* 641173362Sbenjsc * Read in the eeprom and also setup the channels for 642173362Sbenjsc * net80211. We don't set the rates as net80211 does this for us 643173362Sbenjsc */ 644190526Ssam wpi_read_eeprom(sc, macaddr); 645173362Sbenjsc 646179957Sthompsa if (bootverbose || WPI_DEBUG_SET) { 647173362Sbenjsc device_printf(sc->sc_dev, "Regulatory Domain: %.4s\n", sc->domain); 648173362Sbenjsc device_printf(sc->sc_dev, "Hardware Type: %c\n", 649173362Sbenjsc sc->type > 1 ? 'B': '?'); 650173362Sbenjsc device_printf(sc->sc_dev, "Hardware Revision: %c\n", 651173362Sbenjsc ((le16toh(sc->rev) & 0xf0) == 0xd0) ? 'D': '?'); 652173362Sbenjsc device_printf(sc->sc_dev, "SKU %s support 802.11a\n", 653173362Sbenjsc supportsa ? "does" : "does not"); 654173362Sbenjsc 655173362Sbenjsc /* XXX hw_config uses the PCIDEV for the Hardware rev. Must check 656173362Sbenjsc what sc->rev really represents - benjsc 20070615 */ 657173362Sbenjsc } 658173362Sbenjsc 659173362Sbenjsc if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 660173362Sbenjsc ifp->if_softc = sc; 661173362Sbenjsc ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 662173362Sbenjsc ifp->if_init = wpi_init; 663173362Sbenjsc ifp->if_ioctl = wpi_ioctl; 664173362Sbenjsc ifp->if_start = wpi_start; 665173362Sbenjsc IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); 666173362Sbenjsc ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN; 667173362Sbenjsc IFQ_SET_READY(&ifp->if_snd); 668178354Ssam 669190526Ssam ieee80211_ifattach(ic, macaddr); 670173362Sbenjsc /* override default methods */ 671173362Sbenjsc ic->ic_node_alloc = wpi_node_alloc; 672173362Sbenjsc ic->ic_newassoc = wpi_newassoc; 673178354Ssam ic->ic_raw_xmit = wpi_raw_xmit; 674173362Sbenjsc ic->ic_wme.wme_update = wpi_wme_update; 675173362Sbenjsc ic->ic_scan_start = wpi_scan_start; 676173362Sbenjsc ic->ic_scan_end = wpi_scan_end; 677173362Sbenjsc ic->ic_set_channel = wpi_set_channel; 678173362Sbenjsc ic->ic_scan_curchan = wpi_scan_curchan; 679173362Sbenjsc ic->ic_scan_mindwell = wpi_scan_mindwell; 680173362Sbenjsc 681178354Ssam ic->ic_vap_create = wpi_vap_create; 682178354Ssam ic->ic_vap_delete = wpi_vap_delete; 683173362Sbenjsc 684192468Ssam ieee80211_radiotap_attach(ic, 685192468Ssam &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 686192468Ssam WPI_TX_RADIOTAP_PRESENT, 687192468Ssam &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 688192468Ssam WPI_RX_RADIOTAP_PRESENT); 689173362Sbenjsc 690173362Sbenjsc /* 691173362Sbenjsc * Hook our interrupt after all initialization is complete. 692173362Sbenjsc */ 693177043Sthompsa error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET |INTR_MPSAFE, 694177043Sthompsa NULL, wpi_intr, sc, &sc->sc_ih); 695173362Sbenjsc if (error != 0) { 696173362Sbenjsc device_printf(dev, "could not set up interrupt\n"); 697173362Sbenjsc goto fail; 698173362Sbenjsc } 699173362Sbenjsc 700177043Sthompsa if (bootverbose) 701177043Sthompsa ieee80211_announce(ic); 702173362Sbenjsc#ifdef XXX_DEBUG 703173362Sbenjsc ieee80211_announce_channels(ic); 704173362Sbenjsc#endif 705173362Sbenjsc return 0; 706173362Sbenjsc 707173362Sbenjscfail: wpi_detach(dev); 708173362Sbenjsc return ENXIO; 709173362Sbenjsc} 710173362Sbenjsc 711173362Sbenjscstatic int 712173362Sbenjscwpi_detach(device_t dev) 713173362Sbenjsc{ 714173362Sbenjsc struct wpi_softc *sc = device_get_softc(dev); 715178354Ssam struct ifnet *ifp = sc->sc_ifp; 716200530Sgavin struct ieee80211com *ic; 717173362Sbenjsc int ac; 718173362Sbenjsc 719200530Sgavin if (ifp != NULL) { 720200530Sgavin ic = ifp->if_l2com; 721191746Sthompsa 722200530Sgavin ieee80211_draintask(ic, &sc->sc_restarttask); 723200530Sgavin ieee80211_draintask(ic, &sc->sc_radiotask); 724173362Sbenjsc wpi_stop(sc); 725173362Sbenjsc callout_drain(&sc->watchdog_to); 726173362Sbenjsc callout_drain(&sc->calib_to); 727173362Sbenjsc ieee80211_ifdetach(ic); 728173362Sbenjsc } 729173362Sbenjsc 730173362Sbenjsc WPI_LOCK(sc); 731173362Sbenjsc if (sc->txq[0].data_dmat) { 732173362Sbenjsc for (ac = 0; ac < WME_NUM_AC; ac++) 733173362Sbenjsc wpi_free_tx_ring(sc, &sc->txq[ac]); 734173362Sbenjsc 735173362Sbenjsc wpi_free_tx_ring(sc, &sc->cmdq); 736173362Sbenjsc wpi_free_rx_ring(sc, &sc->rxq); 737173362Sbenjsc wpi_free_shared(sc); 738173362Sbenjsc } 739173362Sbenjsc 740173362Sbenjsc if (sc->fw_fp != NULL) { 741173362Sbenjsc wpi_unload_firmware(sc); 742173362Sbenjsc } 743173362Sbenjsc 744173362Sbenjsc if (sc->fw_dma.tag) 745173362Sbenjsc wpi_free_fwmem(sc); 746173362Sbenjsc WPI_UNLOCK(sc); 747173362Sbenjsc 748173362Sbenjsc if (sc->irq != NULL) { 749173362Sbenjsc bus_teardown_intr(dev, sc->irq, sc->sc_ih); 750173362Sbenjsc bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq); 751173362Sbenjsc } 752173362Sbenjsc 753173362Sbenjsc if (sc->mem != NULL) 754173362Sbenjsc bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem); 755173362Sbenjsc 756173362Sbenjsc if (ifp != NULL) 757173362Sbenjsc if_free(ifp); 758173362Sbenjsc 759173362Sbenjsc WPI_LOCK_DESTROY(sc); 760173362Sbenjsc 761173362Sbenjsc return 0; 762173362Sbenjsc} 763173362Sbenjsc 764178354Ssamstatic struct ieee80211vap * 765178354Ssamwpi_vap_create(struct ieee80211com *ic, 766178354Ssam const char name[IFNAMSIZ], int unit, int opmode, int flags, 767178354Ssam const uint8_t bssid[IEEE80211_ADDR_LEN], 768178354Ssam const uint8_t mac[IEEE80211_ADDR_LEN]) 769178354Ssam{ 770178354Ssam struct wpi_vap *wvp; 771178354Ssam struct ieee80211vap *vap; 772178354Ssam 773178354Ssam if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 774178354Ssam return NULL; 775178354Ssam wvp = (struct wpi_vap *) malloc(sizeof(struct wpi_vap), 776178354Ssam M_80211_VAP, M_NOWAIT | M_ZERO); 777178354Ssam if (wvp == NULL) 778178354Ssam return NULL; 779178354Ssam vap = &wvp->vap; 780178354Ssam ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac); 781178354Ssam /* override with driver methods */ 782178354Ssam wvp->newstate = vap->iv_newstate; 783178354Ssam vap->iv_newstate = wpi_newstate; 784178354Ssam 785178354Ssam ieee80211_amrr_init(&wvp->amrr, vap, 786178354Ssam IEEE80211_AMRR_MIN_SUCCESS_THRESHOLD, 787178354Ssam IEEE80211_AMRR_MAX_SUCCESS_THRESHOLD, 788178354Ssam 500 /*ms*/); 789178354Ssam 790178354Ssam /* complete setup */ 791178354Ssam ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status); 792178354Ssam ic->ic_opmode = opmode; 793178354Ssam return vap; 794178354Ssam} 795178354Ssam 796173362Sbenjscstatic void 797178354Ssamwpi_vap_delete(struct ieee80211vap *vap) 798178354Ssam{ 799178354Ssam struct wpi_vap *wvp = WPI_VAP(vap); 800178354Ssam 801178354Ssam ieee80211_amrr_cleanup(&wvp->amrr); 802178354Ssam ieee80211_vap_detach(vap); 803178354Ssam free(wvp, M_80211_VAP); 804178354Ssam} 805178354Ssam 806178354Ssamstatic void 807173362Sbenjscwpi_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 808173362Sbenjsc{ 809173362Sbenjsc if (error != 0) 810173362Sbenjsc return; 811173362Sbenjsc 812173362Sbenjsc KASSERT(nsegs == 1, ("too many DMA segments, %d should be 1", nsegs)); 813173362Sbenjsc 814173362Sbenjsc *(bus_addr_t *)arg = segs[0].ds_addr; 815173362Sbenjsc} 816173362Sbenjsc 817177043Sthompsa/* 818177043Sthompsa * Allocates a contiguous block of dma memory of the requested size and 819177043Sthompsa * alignment. Due to limitations of the FreeBSD dma subsystem as of 20071217, 820177043Sthompsa * allocations greater than 4096 may fail. Hence if the requested alignment is 821177043Sthompsa * greater we allocate 'alignment' size extra memory and shift the vaddr and 822177043Sthompsa * paddr after the dma load. This bypasses the problem at the cost of a little 823177043Sthompsa * more memory. 824177043Sthompsa */ 825173362Sbenjscstatic int 826173362Sbenjscwpi_dma_contig_alloc(struct wpi_softc *sc, struct wpi_dma_info *dma, 827173362Sbenjsc void **kvap, bus_size_t size, bus_size_t alignment, int flags) 828173362Sbenjsc{ 829173362Sbenjsc int error; 830177043Sthompsa bus_size_t align; 831177043Sthompsa bus_size_t reqsize; 832173362Sbenjsc 833173362Sbenjsc DPRINTFN(WPI_DEBUG_DMA, 834177043Sthompsa ("Size: %zd - alignment %zd\n", size, alignment)); 835173362Sbenjsc 836173362Sbenjsc dma->size = size; 837173362Sbenjsc dma->tag = NULL; 838173362Sbenjsc 839177043Sthompsa if (alignment > 4096) { 840177043Sthompsa align = PAGE_SIZE; 841177043Sthompsa reqsize = size + alignment; 842177043Sthompsa } else { 843177043Sthompsa align = alignment; 844177043Sthompsa reqsize = size; 845177043Sthompsa } 846177043Sthompsa error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), align, 847173362Sbenjsc 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, 848177043Sthompsa NULL, NULL, reqsize, 849177043Sthompsa 1, reqsize, flags, 850173362Sbenjsc NULL, NULL, &dma->tag); 851173362Sbenjsc if (error != 0) { 852173362Sbenjsc device_printf(sc->sc_dev, 853173362Sbenjsc "could not create shared page DMA tag\n"); 854173362Sbenjsc goto fail; 855173362Sbenjsc } 856177043Sthompsa error = bus_dmamem_alloc(dma->tag, (void **)&dma->vaddr_start, 857173362Sbenjsc flags | BUS_DMA_ZERO, &dma->map); 858173362Sbenjsc if (error != 0) { 859173362Sbenjsc device_printf(sc->sc_dev, 860173362Sbenjsc "could not allocate shared page DMA memory\n"); 861173362Sbenjsc goto fail; 862173362Sbenjsc } 863173362Sbenjsc 864177043Sthompsa error = bus_dmamap_load(dma->tag, dma->map, dma->vaddr_start, 865177043Sthompsa reqsize, wpi_dma_map_addr, &dma->paddr_start, flags); 866177043Sthompsa 867177043Sthompsa /* Save the original pointers so we can free all the memory */ 868177043Sthompsa dma->paddr = dma->paddr_start; 869177043Sthompsa dma->vaddr = dma->vaddr_start; 870177043Sthompsa 871177043Sthompsa /* 872177043Sthompsa * Check the alignment and increment by 4096 until we get the 873177043Sthompsa * requested alignment. Fail if can't obtain the alignment 874177043Sthompsa * we requested. 875173362Sbenjsc */ 876177043Sthompsa if ((dma->paddr & (alignment -1 )) != 0) { 877177043Sthompsa int i; 878173362Sbenjsc 879177043Sthompsa for (i = 0; i < alignment / 4096; i++) { 880177043Sthompsa if ((dma->paddr & (alignment - 1 )) == 0) 881177043Sthompsa break; 882177043Sthompsa dma->paddr += 4096; 883177043Sthompsa dma->vaddr += 4096; 884177043Sthompsa } 885177043Sthompsa if (i == alignment / 4096) { 886177043Sthompsa device_printf(sc->sc_dev, 887177043Sthompsa "alignment requirement was not satisfied\n"); 888177043Sthompsa goto fail; 889177043Sthompsa } 890173362Sbenjsc } 891173362Sbenjsc 892173362Sbenjsc if (error != 0) { 893173362Sbenjsc device_printf(sc->sc_dev, 894173362Sbenjsc "could not load shared page DMA map\n"); 895173362Sbenjsc goto fail; 896173362Sbenjsc } 897173362Sbenjsc 898173362Sbenjsc if (kvap != NULL) 899173362Sbenjsc *kvap = dma->vaddr; 900173362Sbenjsc 901173362Sbenjsc return 0; 902173362Sbenjsc 903173362Sbenjscfail: 904173362Sbenjsc wpi_dma_contig_free(dma); 905173362Sbenjsc return error; 906173362Sbenjsc} 907173362Sbenjsc 908173362Sbenjscstatic void 909173362Sbenjscwpi_dma_contig_free(struct wpi_dma_info *dma) 910173362Sbenjsc{ 911173362Sbenjsc if (dma->tag) { 912173362Sbenjsc if (dma->map != NULL) { 913177043Sthompsa if (dma->paddr_start != 0) { 914173362Sbenjsc bus_dmamap_sync(dma->tag, dma->map, 915173362Sbenjsc BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 916173362Sbenjsc bus_dmamap_unload(dma->tag, dma->map); 917173362Sbenjsc } 918177043Sthompsa bus_dmamem_free(dma->tag, &dma->vaddr_start, dma->map); 919173362Sbenjsc } 920173362Sbenjsc bus_dma_tag_destroy(dma->tag); 921173362Sbenjsc } 922173362Sbenjsc} 923173362Sbenjsc 924173362Sbenjsc/* 925173362Sbenjsc * Allocate a shared page between host and NIC. 926173362Sbenjsc */ 927173362Sbenjscstatic int 928173362Sbenjscwpi_alloc_shared(struct wpi_softc *sc) 929173362Sbenjsc{ 930173362Sbenjsc int error; 931173362Sbenjsc 932173362Sbenjsc error = wpi_dma_contig_alloc(sc, &sc->shared_dma, 933173362Sbenjsc (void **)&sc->shared, sizeof (struct wpi_shared), 934173362Sbenjsc PAGE_SIZE, 935173362Sbenjsc BUS_DMA_NOWAIT); 936173362Sbenjsc 937173362Sbenjsc if (error != 0) { 938173362Sbenjsc device_printf(sc->sc_dev, 939173362Sbenjsc "could not allocate shared area DMA memory\n"); 940173362Sbenjsc } 941173362Sbenjsc 942173362Sbenjsc return error; 943173362Sbenjsc} 944173362Sbenjsc 945173362Sbenjscstatic void 946173362Sbenjscwpi_free_shared(struct wpi_softc *sc) 947173362Sbenjsc{ 948173362Sbenjsc wpi_dma_contig_free(&sc->shared_dma); 949173362Sbenjsc} 950173362Sbenjsc 951173362Sbenjscstatic int 952173362Sbenjscwpi_alloc_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring) 953173362Sbenjsc{ 954173362Sbenjsc 955173362Sbenjsc int i, error; 956173362Sbenjsc 957173362Sbenjsc ring->cur = 0; 958173362Sbenjsc 959173362Sbenjsc error = wpi_dma_contig_alloc(sc, &ring->desc_dma, 960177043Sthompsa (void **)&ring->desc, WPI_RX_RING_COUNT * sizeof (uint32_t), 961177043Sthompsa WPI_RING_DMA_ALIGN, BUS_DMA_NOWAIT); 962173362Sbenjsc 963173362Sbenjsc if (error != 0) { 964177043Sthompsa device_printf(sc->sc_dev, 965177043Sthompsa "%s: could not allocate rx ring DMA memory, error %d\n", 966177043Sthompsa __func__, error); 967177043Sthompsa goto fail; 968173362Sbenjsc } 969173362Sbenjsc 970177043Sthompsa error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, 971177043Sthompsa BUS_SPACE_MAXADDR_32BIT, 972177043Sthompsa BUS_SPACE_MAXADDR, NULL, NULL, MJUMPAGESIZE, 1, 973177043Sthompsa MJUMPAGESIZE, BUS_DMA_NOWAIT, NULL, NULL, &ring->data_dmat); 974177043Sthompsa if (error != 0) { 975177043Sthompsa device_printf(sc->sc_dev, 976177043Sthompsa "%s: bus_dma_tag_create_failed, error %d\n", 977177043Sthompsa __func__, error); 978177043Sthompsa goto fail; 979177043Sthompsa } 980177043Sthompsa 981173362Sbenjsc /* 982177043Sthompsa * Setup Rx buffers. 983173362Sbenjsc */ 984173362Sbenjsc for (i = 0; i < WPI_RX_RING_COUNT; i++) { 985177043Sthompsa struct wpi_rx_data *data = &ring->data[i]; 986177043Sthompsa struct mbuf *m; 987177043Sthompsa bus_addr_t paddr; 988173362Sbenjsc 989177043Sthompsa error = bus_dmamap_create(ring->data_dmat, 0, &data->map); 990177043Sthompsa if (error != 0) { 991173362Sbenjsc device_printf(sc->sc_dev, 992177043Sthompsa "%s: bus_dmamap_create failed, error %d\n", 993177043Sthompsa __func__, error); 994173362Sbenjsc goto fail; 995173362Sbenjsc } 996177043Sthompsa m = m_getjcl(M_DONTWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE); 997177043Sthompsa if (m == NULL) { 998173362Sbenjsc device_printf(sc->sc_dev, 999177043Sthompsa "%s: could not allocate rx mbuf\n", __func__); 1000177043Sthompsa error = ENOMEM; 1001173362Sbenjsc goto fail; 1002173362Sbenjsc } 1003177043Sthompsa /* map page */ 1004177043Sthompsa error = bus_dmamap_load(ring->data_dmat, data->map, 1005177043Sthompsa mtod(m, caddr_t), MJUMPAGESIZE, 1006177043Sthompsa wpi_dma_map_addr, &paddr, BUS_DMA_NOWAIT); 1007177043Sthompsa if (error != 0 && error != EFBIG) { 1008177043Sthompsa device_printf(sc->sc_dev, 1009177043Sthompsa "%s: bus_dmamap_load failed, error %d\n", 1010177043Sthompsa __func__, error); 1011177043Sthompsa m_freem(m); 1012177043Sthompsa error = ENOMEM; /* XXX unique code */ 1013173362Sbenjsc goto fail; 1014173362Sbenjsc } 1015177043Sthompsa bus_dmamap_sync(ring->data_dmat, data->map, 1016177043Sthompsa BUS_DMASYNC_PREWRITE); 1017177043Sthompsa 1018177043Sthompsa data->m = m; 1019177043Sthompsa ring->desc[i] = htole32(paddr); 1020173362Sbenjsc } 1021173362Sbenjsc bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 1022173362Sbenjsc BUS_DMASYNC_PREWRITE); 1023173362Sbenjsc return 0; 1024173362Sbenjscfail: 1025173362Sbenjsc wpi_free_rx_ring(sc, ring); 1026173362Sbenjsc return error; 1027173362Sbenjsc} 1028173362Sbenjsc 1029173362Sbenjscstatic void 1030173362Sbenjscwpi_reset_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring) 1031173362Sbenjsc{ 1032173362Sbenjsc int ntries; 1033173362Sbenjsc 1034173362Sbenjsc wpi_mem_lock(sc); 1035173362Sbenjsc 1036173362Sbenjsc WPI_WRITE(sc, WPI_RX_CONFIG, 0); 1037173362Sbenjsc 1038173362Sbenjsc for (ntries = 0; ntries < 100; ntries++) { 1039173362Sbenjsc if (WPI_READ(sc, WPI_RX_STATUS) & WPI_RX_IDLE) 1040173362Sbenjsc break; 1041173362Sbenjsc DELAY(10); 1042173362Sbenjsc } 1043173362Sbenjsc 1044173362Sbenjsc wpi_mem_unlock(sc); 1045173362Sbenjsc 1046173362Sbenjsc#ifdef WPI_DEBUG 1047179957Sthompsa if (ntries == 100 && wpi_debug > 0) 1048173362Sbenjsc device_printf(sc->sc_dev, "timeout resetting Rx ring\n"); 1049173362Sbenjsc#endif 1050173362Sbenjsc 1051173362Sbenjsc ring->cur = 0; 1052173362Sbenjsc} 1053173362Sbenjsc 1054173362Sbenjscstatic void 1055173362Sbenjscwpi_free_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring) 1056173362Sbenjsc{ 1057173362Sbenjsc int i; 1058173362Sbenjsc 1059173362Sbenjsc wpi_dma_contig_free(&ring->desc_dma); 1060173362Sbenjsc 1061177043Sthompsa for (i = 0; i < WPI_RX_RING_COUNT; i++) 1062177043Sthompsa if (ring->data[i].m != NULL) 1063173362Sbenjsc m_freem(ring->data[i].m); 1064173362Sbenjsc} 1065173362Sbenjsc 1066173362Sbenjscstatic int 1067173362Sbenjscwpi_alloc_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring, int count, 1068173362Sbenjsc int qid) 1069173362Sbenjsc{ 1070173362Sbenjsc struct wpi_tx_data *data; 1071173362Sbenjsc int i, error; 1072173362Sbenjsc 1073173362Sbenjsc ring->qid = qid; 1074173362Sbenjsc ring->count = count; 1075173362Sbenjsc ring->queued = 0; 1076173362Sbenjsc ring->cur = 0; 1077173362Sbenjsc ring->data = NULL; 1078173362Sbenjsc 1079173362Sbenjsc error = wpi_dma_contig_alloc(sc, &ring->desc_dma, 1080173362Sbenjsc (void **)&ring->desc, count * sizeof (struct wpi_tx_desc), 1081173362Sbenjsc WPI_RING_DMA_ALIGN, BUS_DMA_NOWAIT); 1082173362Sbenjsc 1083173362Sbenjsc if (error != 0) { 1084173362Sbenjsc device_printf(sc->sc_dev, "could not allocate tx dma memory\n"); 1085173362Sbenjsc goto fail; 1086173362Sbenjsc } 1087173362Sbenjsc 1088173362Sbenjsc /* update shared page with ring's base address */ 1089173362Sbenjsc sc->shared->txbase[qid] = htole32(ring->desc_dma.paddr); 1090173362Sbenjsc 1091173362Sbenjsc error = wpi_dma_contig_alloc(sc, &ring->cmd_dma, (void **)&ring->cmd, 1092173362Sbenjsc count * sizeof (struct wpi_tx_cmd), WPI_RING_DMA_ALIGN, 1093173362Sbenjsc BUS_DMA_NOWAIT); 1094173362Sbenjsc 1095173362Sbenjsc if (error != 0) { 1096173362Sbenjsc device_printf(sc->sc_dev, 1097173362Sbenjsc "could not allocate tx command DMA memory\n"); 1098173362Sbenjsc goto fail; 1099173362Sbenjsc } 1100173362Sbenjsc 1101173362Sbenjsc ring->data = malloc(count * sizeof (struct wpi_tx_data), M_DEVBUF, 1102173362Sbenjsc M_NOWAIT | M_ZERO); 1103173362Sbenjsc if (ring->data == NULL) { 1104173362Sbenjsc device_printf(sc->sc_dev, 1105173362Sbenjsc "could not allocate tx data slots\n"); 1106173362Sbenjsc goto fail; 1107173362Sbenjsc } 1108173362Sbenjsc 1109173362Sbenjsc error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, 1110173362Sbenjsc BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1111173362Sbenjsc WPI_MAX_SCATTER - 1, MCLBYTES, BUS_DMA_NOWAIT, NULL, NULL, 1112173362Sbenjsc &ring->data_dmat); 1113173362Sbenjsc if (error != 0) { 1114173362Sbenjsc device_printf(sc->sc_dev, "could not create data DMA tag\n"); 1115173362Sbenjsc goto fail; 1116173362Sbenjsc } 1117173362Sbenjsc 1118173362Sbenjsc for (i = 0; i < count; i++) { 1119173362Sbenjsc data = &ring->data[i]; 1120173362Sbenjsc 1121173362Sbenjsc error = bus_dmamap_create(ring->data_dmat, 0, &data->map); 1122173362Sbenjsc if (error != 0) { 1123173362Sbenjsc device_printf(sc->sc_dev, 1124173362Sbenjsc "could not create tx buf DMA map\n"); 1125173362Sbenjsc goto fail; 1126173362Sbenjsc } 1127173362Sbenjsc bus_dmamap_sync(ring->data_dmat, data->map, 1128173362Sbenjsc BUS_DMASYNC_PREWRITE); 1129173362Sbenjsc } 1130173362Sbenjsc 1131173362Sbenjsc return 0; 1132173362Sbenjsc 1133177043Sthompsafail: 1134177043Sthompsa wpi_free_tx_ring(sc, ring); 1135173362Sbenjsc return error; 1136173362Sbenjsc} 1137173362Sbenjsc 1138173362Sbenjscstatic void 1139173362Sbenjscwpi_reset_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring) 1140173362Sbenjsc{ 1141173362Sbenjsc struct wpi_tx_data *data; 1142173362Sbenjsc int i, ntries; 1143173362Sbenjsc 1144173362Sbenjsc wpi_mem_lock(sc); 1145173362Sbenjsc 1146173362Sbenjsc WPI_WRITE(sc, WPI_TX_CONFIG(ring->qid), 0); 1147173362Sbenjsc for (ntries = 0; ntries < 100; ntries++) { 1148173362Sbenjsc if (WPI_READ(sc, WPI_TX_STATUS) & WPI_TX_IDLE(ring->qid)) 1149173362Sbenjsc break; 1150173362Sbenjsc DELAY(10); 1151173362Sbenjsc } 1152173362Sbenjsc#ifdef WPI_DEBUG 1153179957Sthompsa if (ntries == 100 && wpi_debug > 0) 1154173362Sbenjsc device_printf(sc->sc_dev, "timeout resetting Tx ring %d\n", 1155173362Sbenjsc ring->qid); 1156173362Sbenjsc#endif 1157173362Sbenjsc wpi_mem_unlock(sc); 1158173362Sbenjsc 1159173362Sbenjsc for (i = 0; i < ring->count; i++) { 1160173362Sbenjsc data = &ring->data[i]; 1161173362Sbenjsc 1162173362Sbenjsc if (data->m != NULL) { 1163173362Sbenjsc bus_dmamap_unload(ring->data_dmat, data->map); 1164173362Sbenjsc m_freem(data->m); 1165173362Sbenjsc data->m = NULL; 1166173362Sbenjsc } 1167173362Sbenjsc } 1168173362Sbenjsc 1169173362Sbenjsc ring->queued = 0; 1170173362Sbenjsc ring->cur = 0; 1171173362Sbenjsc} 1172173362Sbenjsc 1173173362Sbenjscstatic void 1174173362Sbenjscwpi_free_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring) 1175173362Sbenjsc{ 1176173362Sbenjsc struct wpi_tx_data *data; 1177173362Sbenjsc int i; 1178173362Sbenjsc 1179173362Sbenjsc wpi_dma_contig_free(&ring->desc_dma); 1180173362Sbenjsc wpi_dma_contig_free(&ring->cmd_dma); 1181173362Sbenjsc 1182173362Sbenjsc if (ring->data != NULL) { 1183173362Sbenjsc for (i = 0; i < ring->count; i++) { 1184173362Sbenjsc data = &ring->data[i]; 1185173362Sbenjsc 1186173362Sbenjsc if (data->m != NULL) { 1187173362Sbenjsc bus_dmamap_sync(ring->data_dmat, data->map, 1188173362Sbenjsc BUS_DMASYNC_POSTWRITE); 1189173362Sbenjsc bus_dmamap_unload(ring->data_dmat, data->map); 1190173362Sbenjsc m_freem(data->m); 1191173362Sbenjsc data->m = NULL; 1192173362Sbenjsc } 1193173362Sbenjsc } 1194173362Sbenjsc free(ring->data, M_DEVBUF); 1195173362Sbenjsc } 1196173362Sbenjsc 1197173362Sbenjsc if (ring->data_dmat != NULL) 1198173362Sbenjsc bus_dma_tag_destroy(ring->data_dmat); 1199173362Sbenjsc} 1200173362Sbenjsc 1201173362Sbenjscstatic int 1202173362Sbenjscwpi_shutdown(device_t dev) 1203173362Sbenjsc{ 1204173362Sbenjsc struct wpi_softc *sc = device_get_softc(dev); 1205173362Sbenjsc 1206173362Sbenjsc WPI_LOCK(sc); 1207173362Sbenjsc wpi_stop_locked(sc); 1208173362Sbenjsc wpi_unload_firmware(sc); 1209173362Sbenjsc WPI_UNLOCK(sc); 1210173362Sbenjsc 1211173362Sbenjsc return 0; 1212173362Sbenjsc} 1213173362Sbenjsc 1214173362Sbenjscstatic int 1215173362Sbenjscwpi_suspend(device_t dev) 1216173362Sbenjsc{ 1217173362Sbenjsc struct wpi_softc *sc = device_get_softc(dev); 1218173362Sbenjsc 1219173362Sbenjsc wpi_stop(sc); 1220173362Sbenjsc return 0; 1221173362Sbenjsc} 1222173362Sbenjsc 1223173362Sbenjscstatic int 1224173362Sbenjscwpi_resume(device_t dev) 1225173362Sbenjsc{ 1226173362Sbenjsc struct wpi_softc *sc = device_get_softc(dev); 1227178354Ssam struct ifnet *ifp = sc->sc_ifp; 1228173362Sbenjsc 1229173362Sbenjsc pci_write_config(dev, 0x41, 0, 1); 1230173362Sbenjsc 1231173362Sbenjsc if (ifp->if_flags & IFF_UP) { 1232173362Sbenjsc wpi_init(ifp->if_softc); 1233173362Sbenjsc if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1234173362Sbenjsc wpi_start(ifp); 1235173362Sbenjsc } 1236173362Sbenjsc return 0; 1237173362Sbenjsc} 1238173362Sbenjsc 1239173362Sbenjsc/* ARGSUSED */ 1240173362Sbenjscstatic struct ieee80211_node * 1241179643Ssamwpi_node_alloc(struct ieee80211vap *vap __unused, 1242179643Ssam const uint8_t mac[IEEE80211_ADDR_LEN] __unused) 1243173362Sbenjsc{ 1244173362Sbenjsc struct wpi_node *wn; 1245173362Sbenjsc 1246178354Ssam wn = malloc(sizeof (struct wpi_node), M_80211_NODE, M_NOWAIT | M_ZERO); 1247173362Sbenjsc 1248173362Sbenjsc return &wn->ni; 1249173362Sbenjsc} 1250173362Sbenjsc 1251173362Sbenjsc/** 1252173362Sbenjsc * Called by net80211 when ever there is a change to 80211 state machine 1253173362Sbenjsc */ 1254173362Sbenjscstatic int 1255178354Ssamwpi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1256173362Sbenjsc{ 1257178354Ssam struct wpi_vap *wvp = WPI_VAP(vap); 1258178354Ssam struct ieee80211com *ic = vap->iv_ic; 1259173362Sbenjsc struct ifnet *ifp = ic->ic_ifp; 1260173362Sbenjsc struct wpi_softc *sc = ifp->if_softc; 1261178354Ssam int error; 1262173362Sbenjsc 1263178354Ssam DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__, 1264178354Ssam ieee80211_state_name[vap->iv_state], 1265178354Ssam ieee80211_state_name[nstate], sc->flags)); 1266173362Sbenjsc 1267191746Sthompsa IEEE80211_UNLOCK(ic); 1268191746Sthompsa WPI_LOCK(sc); 1269178354Ssam if (nstate == IEEE80211_S_AUTH) { 1270191746Sthompsa /* The node must be registered in the firmware before auth */ 1271191746Sthompsa error = wpi_auth(sc, vap); 1272191746Sthompsa if (error != 0) { 1273191746Sthompsa device_printf(sc->sc_dev, 1274191746Sthompsa "%s: could not move to auth state, error %d\n", 1275191746Sthompsa __func__, error); 1276191746Sthompsa } 1277173362Sbenjsc } 1278178354Ssam if (nstate == IEEE80211_S_RUN && vap->iv_state != IEEE80211_S_RUN) { 1279191746Sthompsa error = wpi_run(sc, vap); 1280191746Sthompsa if (error != 0) { 1281191746Sthompsa device_printf(sc->sc_dev, 1282191746Sthompsa "%s: could not move to run state, error %d\n", 1283191746Sthompsa __func__, error); 1284191746Sthompsa } 1285178354Ssam } 1286178354Ssam if (nstate == IEEE80211_S_RUN) { 1287178354Ssam /* RUN -> RUN transition; just restart the timers */ 1288178354Ssam wpi_calib_timeout(sc); 1289178354Ssam /* XXX split out rate control timer */ 1290178354Ssam } 1291191746Sthompsa WPI_UNLOCK(sc); 1292191746Sthompsa IEEE80211_LOCK(ic); 1293178354Ssam return wvp->newstate(vap, nstate, arg); 1294173362Sbenjsc} 1295173362Sbenjsc 1296173362Sbenjsc/* 1297173362Sbenjsc * Grab exclusive access to NIC memory. 1298173362Sbenjsc */ 1299173362Sbenjscstatic void 1300173362Sbenjscwpi_mem_lock(struct wpi_softc *sc) 1301173362Sbenjsc{ 1302173362Sbenjsc int ntries; 1303173362Sbenjsc uint32_t tmp; 1304173362Sbenjsc 1305173362Sbenjsc tmp = WPI_READ(sc, WPI_GPIO_CTL); 1306173362Sbenjsc WPI_WRITE(sc, WPI_GPIO_CTL, tmp | WPI_GPIO_MAC); 1307173362Sbenjsc 1308173362Sbenjsc /* spin until we actually get the lock */ 1309173362Sbenjsc for (ntries = 0; ntries < 100; ntries++) { 1310173362Sbenjsc if ((WPI_READ(sc, WPI_GPIO_CTL) & 1311173362Sbenjsc (WPI_GPIO_CLOCK | WPI_GPIO_SLEEP)) == WPI_GPIO_CLOCK) 1312173362Sbenjsc break; 1313173362Sbenjsc DELAY(10); 1314173362Sbenjsc } 1315173362Sbenjsc if (ntries == 100) 1316173362Sbenjsc device_printf(sc->sc_dev, "could not lock memory\n"); 1317173362Sbenjsc} 1318173362Sbenjsc 1319173362Sbenjsc/* 1320173362Sbenjsc * Release lock on NIC memory. 1321173362Sbenjsc */ 1322173362Sbenjscstatic void 1323173362Sbenjscwpi_mem_unlock(struct wpi_softc *sc) 1324173362Sbenjsc{ 1325173362Sbenjsc uint32_t tmp = WPI_READ(sc, WPI_GPIO_CTL); 1326173362Sbenjsc WPI_WRITE(sc, WPI_GPIO_CTL, tmp & ~WPI_GPIO_MAC); 1327173362Sbenjsc} 1328173362Sbenjsc 1329173362Sbenjscstatic uint32_t 1330173362Sbenjscwpi_mem_read(struct wpi_softc *sc, uint16_t addr) 1331173362Sbenjsc{ 1332173362Sbenjsc WPI_WRITE(sc, WPI_READ_MEM_ADDR, WPI_MEM_4 | addr); 1333173362Sbenjsc return WPI_READ(sc, WPI_READ_MEM_DATA); 1334173362Sbenjsc} 1335173362Sbenjsc 1336173362Sbenjscstatic void 1337173362Sbenjscwpi_mem_write(struct wpi_softc *sc, uint16_t addr, uint32_t data) 1338173362Sbenjsc{ 1339173362Sbenjsc WPI_WRITE(sc, WPI_WRITE_MEM_ADDR, WPI_MEM_4 | addr); 1340173362Sbenjsc WPI_WRITE(sc, WPI_WRITE_MEM_DATA, data); 1341173362Sbenjsc} 1342173362Sbenjsc 1343173362Sbenjscstatic void 1344173362Sbenjscwpi_mem_write_region_4(struct wpi_softc *sc, uint16_t addr, 1345173362Sbenjsc const uint32_t *data, int wlen) 1346173362Sbenjsc{ 1347173362Sbenjsc for (; wlen > 0; wlen--, data++, addr+=4) 1348173362Sbenjsc wpi_mem_write(sc, addr, *data); 1349173362Sbenjsc} 1350173362Sbenjsc 1351173362Sbenjsc/* 1352173362Sbenjsc * Read data from the EEPROM. We access EEPROM through the MAC instead of 1353173362Sbenjsc * using the traditional bit-bang method. Data is read up until len bytes have 1354173362Sbenjsc * been obtained. 1355173362Sbenjsc */ 1356173362Sbenjscstatic uint16_t 1357173362Sbenjscwpi_read_prom_data(struct wpi_softc *sc, uint32_t addr, void *data, int len) 1358173362Sbenjsc{ 1359173362Sbenjsc int ntries; 1360173362Sbenjsc uint32_t val; 1361173362Sbenjsc uint8_t *out = data; 1362173362Sbenjsc 1363173362Sbenjsc wpi_mem_lock(sc); 1364173362Sbenjsc 1365173362Sbenjsc for (; len > 0; len -= 2, addr++) { 1366173362Sbenjsc WPI_WRITE(sc, WPI_EEPROM_CTL, addr << 2); 1367173362Sbenjsc 1368173362Sbenjsc for (ntries = 0; ntries < 10; ntries++) { 1369173362Sbenjsc if ((val = WPI_READ(sc, WPI_EEPROM_CTL)) & WPI_EEPROM_READY) 1370173362Sbenjsc break; 1371173362Sbenjsc DELAY(5); 1372173362Sbenjsc } 1373173362Sbenjsc 1374173362Sbenjsc if (ntries == 10) { 1375173362Sbenjsc device_printf(sc->sc_dev, "could not read EEPROM\n"); 1376173362Sbenjsc return ETIMEDOUT; 1377173362Sbenjsc } 1378173362Sbenjsc 1379173362Sbenjsc *out++= val >> 16; 1380173362Sbenjsc if (len > 1) 1381173362Sbenjsc *out ++= val >> 24; 1382173362Sbenjsc } 1383173362Sbenjsc 1384173362Sbenjsc wpi_mem_unlock(sc); 1385173362Sbenjsc 1386173362Sbenjsc return 0; 1387173362Sbenjsc} 1388173362Sbenjsc 1389173362Sbenjsc/* 1390173362Sbenjsc * The firmware text and data segments are transferred to the NIC using DMA. 1391173362Sbenjsc * The driver just copies the firmware into DMA-safe memory and tells the NIC 1392173362Sbenjsc * where to find it. Once the NIC has copied the firmware into its internal 1393173362Sbenjsc * memory, we can free our local copy in the driver. 1394173362Sbenjsc */ 1395173362Sbenjscstatic int 1396173362Sbenjscwpi_load_microcode(struct wpi_softc *sc, const uint8_t *fw, int size) 1397173362Sbenjsc{ 1398173362Sbenjsc int error, ntries; 1399173362Sbenjsc 1400173362Sbenjsc DPRINTFN(WPI_DEBUG_HW,("Loading microcode size 0x%x\n", size)); 1401173362Sbenjsc 1402173362Sbenjsc size /= sizeof(uint32_t); 1403173362Sbenjsc 1404173362Sbenjsc wpi_mem_lock(sc); 1405173362Sbenjsc 1406173362Sbenjsc wpi_mem_write_region_4(sc, WPI_MEM_UCODE_BASE, 1407173362Sbenjsc (const uint32_t *)fw, size); 1408173362Sbenjsc 1409173362Sbenjsc wpi_mem_write(sc, WPI_MEM_UCODE_SRC, 0); 1410173362Sbenjsc wpi_mem_write(sc, WPI_MEM_UCODE_DST, WPI_FW_TEXT); 1411173362Sbenjsc wpi_mem_write(sc, WPI_MEM_UCODE_SIZE, size); 1412173362Sbenjsc 1413173362Sbenjsc /* run microcode */ 1414173362Sbenjsc wpi_mem_write(sc, WPI_MEM_UCODE_CTL, WPI_UC_RUN); 1415173362Sbenjsc 1416173362Sbenjsc /* wait while the adapter is busy copying the firmware */ 1417173362Sbenjsc for (error = 0, ntries = 0; ntries < 1000; ntries++) { 1418173362Sbenjsc uint32_t status = WPI_READ(sc, WPI_TX_STATUS); 1419173362Sbenjsc DPRINTFN(WPI_DEBUG_HW, 1420173362Sbenjsc ("firmware status=0x%x, val=0x%x, result=0x%x\n", status, 1421173362Sbenjsc WPI_TX_IDLE(6), status & WPI_TX_IDLE(6))); 1422173362Sbenjsc if (status & WPI_TX_IDLE(6)) { 1423173362Sbenjsc DPRINTFN(WPI_DEBUG_HW, 1424173362Sbenjsc ("Status Match! - ntries = %d\n", ntries)); 1425173362Sbenjsc break; 1426173362Sbenjsc } 1427173362Sbenjsc DELAY(10); 1428173362Sbenjsc } 1429173362Sbenjsc if (ntries == 1000) { 1430173362Sbenjsc device_printf(sc->sc_dev, "timeout transferring firmware\n"); 1431173362Sbenjsc error = ETIMEDOUT; 1432173362Sbenjsc } 1433173362Sbenjsc 1434173362Sbenjsc /* start the microcode executing */ 1435173362Sbenjsc wpi_mem_write(sc, WPI_MEM_UCODE_CTL, WPI_UC_ENABLE); 1436173362Sbenjsc 1437173362Sbenjsc wpi_mem_unlock(sc); 1438173362Sbenjsc 1439173362Sbenjsc return (error); 1440173362Sbenjsc} 1441173362Sbenjsc 1442173362Sbenjscstatic void 1443173362Sbenjscwpi_rx_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc, 1444173362Sbenjsc struct wpi_rx_data *data) 1445173362Sbenjsc{ 1446178354Ssam struct ifnet *ifp = sc->sc_ifp; 1447178354Ssam struct ieee80211com *ic = ifp->if_l2com; 1448173362Sbenjsc struct wpi_rx_ring *ring = &sc->rxq; 1449173362Sbenjsc struct wpi_rx_stat *stat; 1450173362Sbenjsc struct wpi_rx_head *head; 1451173362Sbenjsc struct wpi_rx_tail *tail; 1452173362Sbenjsc struct ieee80211_node *ni; 1453173362Sbenjsc struct mbuf *m, *mnew; 1454177043Sthompsa bus_addr_t paddr; 1455177043Sthompsa int error; 1456173362Sbenjsc 1457173362Sbenjsc stat = (struct wpi_rx_stat *)(desc + 1); 1458173362Sbenjsc 1459173362Sbenjsc if (stat->len > WPI_STAT_MAXLEN) { 1460173362Sbenjsc device_printf(sc->sc_dev, "invalid rx statistic header\n"); 1461173362Sbenjsc ifp->if_ierrors++; 1462173362Sbenjsc return; 1463173362Sbenjsc } 1464173362Sbenjsc 1465173362Sbenjsc head = (struct wpi_rx_head *)((caddr_t)(stat + 1) + stat->len); 1466173362Sbenjsc tail = (struct wpi_rx_tail *)((caddr_t)(head + 1) + le16toh(head->len)); 1467173362Sbenjsc 1468173362Sbenjsc DPRINTFN(WPI_DEBUG_RX, ("rx intr: idx=%d len=%d stat len=%d rssi=%d " 1469173362Sbenjsc "rate=%x chan=%d tstamp=%ju\n", ring->cur, le32toh(desc->len), 1470173362Sbenjsc le16toh(head->len), (int8_t)stat->rssi, head->rate, head->chan, 1471173362Sbenjsc (uintmax_t)le64toh(tail->tstamp))); 1472173362Sbenjsc 1473190458Sjmallett /* discard Rx frames with bad CRC early */ 1474190458Sjmallett if ((le32toh(tail->flags) & WPI_RX_NOERROR) != WPI_RX_NOERROR) { 1475190458Sjmallett DPRINTFN(WPI_DEBUG_RX, ("%s: rx flags error %x\n", __func__, 1476190458Sjmallett le32toh(tail->flags))); 1477190458Sjmallett ifp->if_ierrors++; 1478190458Sjmallett return; 1479190458Sjmallett } 1480190458Sjmallett if (le16toh(head->len) < sizeof (struct ieee80211_frame)) { 1481190458Sjmallett DPRINTFN(WPI_DEBUG_RX, ("%s: frame too short: %d\n", __func__, 1482190458Sjmallett le16toh(head->len))); 1483190458Sjmallett ifp->if_ierrors++; 1484190458Sjmallett return; 1485190458Sjmallett } 1486190458Sjmallett 1487177043Sthompsa /* XXX don't need mbuf, just dma buffer */ 1488177043Sthompsa mnew = m_getjcl(M_DONTWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE); 1489177043Sthompsa if (mnew == NULL) { 1490177043Sthompsa DPRINTFN(WPI_DEBUG_RX, ("%s: no mbuf to restock ring\n", 1491177043Sthompsa __func__)); 1492177043Sthompsa ifp->if_ierrors++; 1493177043Sthompsa return; 1494177043Sthompsa } 1495177043Sthompsa error = bus_dmamap_load(ring->data_dmat, data->map, 1496177043Sthompsa mtod(mnew, caddr_t), MJUMPAGESIZE, 1497177043Sthompsa wpi_dma_map_addr, &paddr, BUS_DMA_NOWAIT); 1498177043Sthompsa if (error != 0 && error != EFBIG) { 1499177043Sthompsa device_printf(sc->sc_dev, 1500177043Sthompsa "%s: bus_dmamap_load failed, error %d\n", __func__, error); 1501177043Sthompsa m_freem(mnew); 1502177043Sthompsa ifp->if_ierrors++; 1503177043Sthompsa return; 1504177043Sthompsa } 1505177043Sthompsa bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE); 1506177043Sthompsa 1507177043Sthompsa /* finalize mbuf and swap in new one */ 1508173362Sbenjsc m = data->m; 1509173362Sbenjsc m->m_pkthdr.rcvif = ifp; 1510173362Sbenjsc m->m_data = (caddr_t)(head + 1); 1511173362Sbenjsc m->m_pkthdr.len = m->m_len = le16toh(head->len); 1512173362Sbenjsc 1513177043Sthompsa data->m = mnew; 1514177043Sthompsa /* update Rx descriptor */ 1515177043Sthompsa ring->desc[ring->cur] = htole32(paddr); 1516173362Sbenjsc 1517192468Ssam if (ieee80211_radiotap_active(ic)) { 1518173362Sbenjsc struct wpi_rx_radiotap_header *tap = &sc->sc_rxtap; 1519173362Sbenjsc 1520173362Sbenjsc tap->wr_flags = 0; 1521173362Sbenjsc tap->wr_chan_freq = 1522173362Sbenjsc htole16(ic->ic_channels[head->chan].ic_freq); 1523173362Sbenjsc tap->wr_chan_flags = 1524173362Sbenjsc htole16(ic->ic_channels[head->chan].ic_flags); 1525173362Sbenjsc tap->wr_dbm_antsignal = (int8_t)(stat->rssi - WPI_RSSI_OFFSET); 1526173362Sbenjsc tap->wr_dbm_antnoise = (int8_t)le16toh(stat->noise); 1527173362Sbenjsc tap->wr_tsft = tail->tstamp; 1528173362Sbenjsc tap->wr_antenna = (le16toh(head->flags) >> 4) & 0xf; 1529173362Sbenjsc switch (head->rate) { 1530173362Sbenjsc /* CCK rates */ 1531173362Sbenjsc case 10: tap->wr_rate = 2; break; 1532173362Sbenjsc case 20: tap->wr_rate = 4; break; 1533173362Sbenjsc case 55: tap->wr_rate = 11; break; 1534173362Sbenjsc case 110: tap->wr_rate = 22; break; 1535173362Sbenjsc /* OFDM rates */ 1536173362Sbenjsc case 0xd: tap->wr_rate = 12; break; 1537173362Sbenjsc case 0xf: tap->wr_rate = 18; break; 1538173362Sbenjsc case 0x5: tap->wr_rate = 24; break; 1539173362Sbenjsc case 0x7: tap->wr_rate = 36; break; 1540173362Sbenjsc case 0x9: tap->wr_rate = 48; break; 1541173362Sbenjsc case 0xb: tap->wr_rate = 72; break; 1542173362Sbenjsc case 0x1: tap->wr_rate = 96; break; 1543173362Sbenjsc case 0x3: tap->wr_rate = 108; break; 1544173362Sbenjsc /* unknown rate: should not happen */ 1545173362Sbenjsc default: tap->wr_rate = 0; 1546173362Sbenjsc } 1547173362Sbenjsc if (le16toh(head->flags) & 0x4) 1548173362Sbenjsc tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 1549173362Sbenjsc } 1550173362Sbenjsc 1551173362Sbenjsc WPI_UNLOCK(sc); 1552173362Sbenjsc 1553177043Sthompsa ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *)); 1554178354Ssam if (ni != NULL) { 1555192468Ssam (void) ieee80211_input(ni, m, stat->rssi, 0); 1556178354Ssam ieee80211_free_node(ni); 1557178354Ssam } else 1558192468Ssam (void) ieee80211_input_all(ic, m, stat->rssi, 0); 1559173362Sbenjsc 1560173362Sbenjsc WPI_LOCK(sc); 1561173362Sbenjsc} 1562173362Sbenjsc 1563173362Sbenjscstatic void 1564173362Sbenjscwpi_tx_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc) 1565173362Sbenjsc{ 1566178354Ssam struct ifnet *ifp = sc->sc_ifp; 1567173362Sbenjsc struct wpi_tx_ring *ring = &sc->txq[desc->qid & 0x3]; 1568173362Sbenjsc struct wpi_tx_data *txdata = &ring->data[desc->idx]; 1569173362Sbenjsc struct wpi_tx_stat *stat = (struct wpi_tx_stat *)(desc + 1); 1570173362Sbenjsc struct wpi_node *wn = (struct wpi_node *)txdata->ni; 1571173362Sbenjsc 1572173362Sbenjsc DPRINTFN(WPI_DEBUG_TX, ("tx done: qid=%d idx=%d retries=%d nkill=%d " 1573173362Sbenjsc "rate=%x duration=%d status=%x\n", desc->qid, desc->idx, 1574173362Sbenjsc stat->ntries, stat->nkill, stat->rate, le32toh(stat->duration), 1575173362Sbenjsc le32toh(stat->status))); 1576173362Sbenjsc 1577173362Sbenjsc /* 1578173362Sbenjsc * Update rate control statistics for the node. 1579173362Sbenjsc * XXX we should not count mgmt frames since they're always sent at 1580173362Sbenjsc * the lowest available bit-rate. 1581173362Sbenjsc * XXX frames w/o ACK shouldn't be used either 1582173362Sbenjsc */ 1583173362Sbenjsc wn->amn.amn_txcnt++; 1584173362Sbenjsc if (stat->ntries > 0) { 1585190462Sjmallett DPRINTFN(WPI_DEBUG_TX, ("%d retries\n", stat->ntries)); 1586173362Sbenjsc wn->amn.amn_retrycnt++; 1587173362Sbenjsc } 1588173362Sbenjsc 1589173362Sbenjsc /* XXX oerrors should only count errors !maxtries */ 1590173362Sbenjsc if ((le32toh(stat->status) & 0xff) != 1) 1591173362Sbenjsc ifp->if_oerrors++; 1592173362Sbenjsc else 1593173362Sbenjsc ifp->if_opackets++; 1594173362Sbenjsc 1595173362Sbenjsc bus_dmamap_sync(ring->data_dmat, txdata->map, BUS_DMASYNC_POSTWRITE); 1596173362Sbenjsc bus_dmamap_unload(ring->data_dmat, txdata->map); 1597173362Sbenjsc /* XXX handle M_TXCB? */ 1598173362Sbenjsc m_freem(txdata->m); 1599173362Sbenjsc txdata->m = NULL; 1600173362Sbenjsc ieee80211_free_node(txdata->ni); 1601173362Sbenjsc txdata->ni = NULL; 1602173362Sbenjsc 1603173362Sbenjsc ring->queued--; 1604173362Sbenjsc 1605173362Sbenjsc sc->sc_tx_timer = 0; 1606173362Sbenjsc ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 1607178354Ssam wpi_start_locked(ifp); 1608173362Sbenjsc} 1609173362Sbenjsc 1610173362Sbenjscstatic void 1611173362Sbenjscwpi_cmd_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc) 1612173362Sbenjsc{ 1613173362Sbenjsc struct wpi_tx_ring *ring = &sc->cmdq; 1614173362Sbenjsc struct wpi_tx_data *data; 1615173362Sbenjsc 1616173362Sbenjsc DPRINTFN(WPI_DEBUG_CMD, ("cmd notification qid=%x idx=%d flags=%x " 1617173362Sbenjsc "type=%s len=%d\n", desc->qid, desc->idx, 1618173362Sbenjsc desc->flags, wpi_cmd_str(desc->type), 1619173362Sbenjsc le32toh(desc->len))); 1620173362Sbenjsc 1621173362Sbenjsc if ((desc->qid & 7) != 4) 1622173362Sbenjsc return; /* not a command ack */ 1623173362Sbenjsc 1624173362Sbenjsc data = &ring->data[desc->idx]; 1625173362Sbenjsc 1626173362Sbenjsc /* if the command was mapped in a mbuf, free it */ 1627173362Sbenjsc if (data->m != NULL) { 1628173362Sbenjsc bus_dmamap_unload(ring->data_dmat, data->map); 1629173362Sbenjsc m_freem(data->m); 1630173362Sbenjsc data->m = NULL; 1631173362Sbenjsc } 1632173362Sbenjsc 1633173362Sbenjsc sc->flags &= ~WPI_FLAG_BUSY; 1634173362Sbenjsc wakeup(&ring->cmd[desc->idx]); 1635173362Sbenjsc} 1636173362Sbenjsc 1637173362Sbenjscstatic void 1638173362Sbenjscwpi_notif_intr(struct wpi_softc *sc) 1639173362Sbenjsc{ 1640178354Ssam struct ifnet *ifp = sc->sc_ifp; 1641178354Ssam struct ieee80211com *ic = ifp->if_l2com; 1642173362Sbenjsc struct wpi_rx_desc *desc; 1643173362Sbenjsc struct wpi_rx_data *data; 1644173362Sbenjsc uint32_t hw; 1645173362Sbenjsc 1646173362Sbenjsc hw = le32toh(sc->shared->next); 1647173362Sbenjsc while (sc->rxq.cur != hw) { 1648173362Sbenjsc data = &sc->rxq.data[sc->rxq.cur]; 1649173362Sbenjsc desc = (void *)data->m->m_ext.ext_buf; 1650173362Sbenjsc 1651173362Sbenjsc DPRINTFN(WPI_DEBUG_NOTIFY, 1652173362Sbenjsc ("notify qid=%x idx=%d flags=%x type=%d len=%d\n", 1653173362Sbenjsc desc->qid, 1654173362Sbenjsc desc->idx, 1655173362Sbenjsc desc->flags, 1656173362Sbenjsc desc->type, 1657173362Sbenjsc le32toh(desc->len))); 1658173362Sbenjsc 1659173362Sbenjsc if (!(desc->qid & 0x80)) /* reply to a command */ 1660173362Sbenjsc wpi_cmd_intr(sc, desc); 1661173362Sbenjsc 1662173362Sbenjsc switch (desc->type) { 1663173362Sbenjsc case WPI_RX_DONE: 1664173362Sbenjsc /* a 802.11 frame was received */ 1665173362Sbenjsc wpi_rx_intr(sc, desc, data); 1666173362Sbenjsc break; 1667173362Sbenjsc 1668173362Sbenjsc case WPI_TX_DONE: 1669173362Sbenjsc /* a 802.11 frame has been transmitted */ 1670173362Sbenjsc wpi_tx_intr(sc, desc); 1671173362Sbenjsc break; 1672173362Sbenjsc 1673173362Sbenjsc case WPI_UC_READY: 1674173362Sbenjsc { 1675173362Sbenjsc struct wpi_ucode_info *uc = 1676173362Sbenjsc (struct wpi_ucode_info *)(desc + 1); 1677173362Sbenjsc 1678173362Sbenjsc /* the microcontroller is ready */ 1679173362Sbenjsc DPRINTF(("microcode alive notification version %x " 1680173362Sbenjsc "alive %x\n", le32toh(uc->version), 1681173362Sbenjsc le32toh(uc->valid))); 1682173362Sbenjsc 1683173362Sbenjsc if (le32toh(uc->valid) != 1) { 1684173362Sbenjsc device_printf(sc->sc_dev, 1685173362Sbenjsc "microcontroller initialization failed\n"); 1686173362Sbenjsc wpi_stop_locked(sc); 1687173362Sbenjsc } 1688173362Sbenjsc break; 1689173362Sbenjsc } 1690173362Sbenjsc case WPI_STATE_CHANGED: 1691173362Sbenjsc { 1692173362Sbenjsc uint32_t *status = (uint32_t *)(desc + 1); 1693173362Sbenjsc 1694173362Sbenjsc /* enabled/disabled notification */ 1695173362Sbenjsc DPRINTF(("state changed to %x\n", le32toh(*status))); 1696173362Sbenjsc 1697173362Sbenjsc if (le32toh(*status) & 1) { 1698173362Sbenjsc device_printf(sc->sc_dev, 1699173362Sbenjsc "Radio transmitter is switched off\n"); 1700173362Sbenjsc sc->flags |= WPI_FLAG_HW_RADIO_OFF; 1701177043Sthompsa ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 1702177043Sthompsa /* Disable firmware commands */ 1703177043Sthompsa WPI_WRITE(sc, WPI_UCODE_SET, WPI_DISABLE_CMD); 1704173362Sbenjsc } 1705173362Sbenjsc break; 1706173362Sbenjsc } 1707173362Sbenjsc case WPI_START_SCAN: 1708173362Sbenjsc { 1709179957Sthompsa#ifdef WPI_DEBUG 1710173362Sbenjsc struct wpi_start_scan *scan = 1711173362Sbenjsc (struct wpi_start_scan *)(desc + 1); 1712179957Sthompsa#endif 1713173362Sbenjsc 1714173362Sbenjsc DPRINTFN(WPI_DEBUG_SCANNING, 1715173362Sbenjsc ("scanning channel %d status %x\n", 1716173362Sbenjsc scan->chan, le32toh(scan->status))); 1717173362Sbenjsc break; 1718173362Sbenjsc } 1719173362Sbenjsc case WPI_STOP_SCAN: 1720173362Sbenjsc { 1721179957Sthompsa#ifdef WPI_DEBUG 1722173362Sbenjsc struct wpi_stop_scan *scan = 1723173362Sbenjsc (struct wpi_stop_scan *)(desc + 1); 1724179957Sthompsa#endif 1725178354Ssam struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1726173362Sbenjsc 1727173362Sbenjsc DPRINTFN(WPI_DEBUG_SCANNING, 1728173362Sbenjsc ("scan finished nchan=%d status=%d chan=%d\n", 1729173362Sbenjsc scan->nchan, scan->status, scan->chan)); 1730173362Sbenjsc 1731177043Sthompsa sc->sc_scan_timer = 0; 1732178354Ssam ieee80211_scan_next(vap); 1733173362Sbenjsc break; 1734173362Sbenjsc } 1735173976Sbenjsc case WPI_MISSED_BEACON: 1736173976Sbenjsc { 1737178354Ssam struct wpi_missed_beacon *beacon = 1738173976Sbenjsc (struct wpi_missed_beacon *)(desc + 1); 1739178354Ssam struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1740173976Sbenjsc 1741178354Ssam if (le32toh(beacon->consecutive) >= 1742178354Ssam vap->iv_bmissthreshold) { 1743178354Ssam DPRINTF(("Beacon miss: %u >= %u\n", 1744178354Ssam le32toh(beacon->consecutive), 1745178354Ssam vap->iv_bmissthreshold)); 1746191746Sthompsa ieee80211_beacon_miss(ic); 1747178354Ssam } 1748178354Ssam break; 1749173362Sbenjsc } 1750173976Sbenjsc } 1751173362Sbenjsc 1752173362Sbenjsc sc->rxq.cur = (sc->rxq.cur + 1) % WPI_RX_RING_COUNT; 1753173362Sbenjsc } 1754173362Sbenjsc 1755173362Sbenjsc /* tell the firmware what we have processed */ 1756173362Sbenjsc hw = (hw == 0) ? WPI_RX_RING_COUNT - 1 : hw - 1; 1757173362Sbenjsc WPI_WRITE(sc, WPI_RX_WIDX, hw & ~7); 1758173362Sbenjsc} 1759173362Sbenjsc 1760173362Sbenjscstatic void 1761173362Sbenjscwpi_intr(void *arg) 1762173362Sbenjsc{ 1763173362Sbenjsc struct wpi_softc *sc = arg; 1764173362Sbenjsc uint32_t r; 1765173362Sbenjsc 1766173362Sbenjsc WPI_LOCK(sc); 1767173362Sbenjsc 1768173362Sbenjsc r = WPI_READ(sc, WPI_INTR); 1769173362Sbenjsc if (r == 0 || r == 0xffffffff) { 1770173362Sbenjsc WPI_UNLOCK(sc); 1771173362Sbenjsc return; 1772173362Sbenjsc } 1773173362Sbenjsc 1774173362Sbenjsc /* disable interrupts */ 1775173362Sbenjsc WPI_WRITE(sc, WPI_MASK, 0); 1776173362Sbenjsc /* ack interrupts */ 1777173362Sbenjsc WPI_WRITE(sc, WPI_INTR, r); 1778173362Sbenjsc 1779173362Sbenjsc if (r & (WPI_SW_ERROR | WPI_HW_ERROR)) { 1780191746Sthompsa struct ifnet *ifp = sc->sc_ifp; 1781191746Sthompsa struct ieee80211com *ic = ifp->if_l2com; 1782191956Sthompsa struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1783191746Sthompsa 1784173362Sbenjsc device_printf(sc->sc_dev, "fatal firmware error\n"); 1785173362Sbenjsc DPRINTFN(6,("(%s)\n", (r & WPI_SW_ERROR) ? "(Software Error)" : 1786173362Sbenjsc "(Hardware Error)")); 1787191956Sthompsa if (vap != NULL) 1788191956Sthompsa ieee80211_cancel_scan(vap); 1789191746Sthompsa ieee80211_runtask(ic, &sc->sc_restarttask); 1790173362Sbenjsc sc->flags &= ~WPI_FLAG_BUSY; 1791173362Sbenjsc WPI_UNLOCK(sc); 1792173362Sbenjsc return; 1793173362Sbenjsc } 1794173362Sbenjsc 1795173362Sbenjsc if (r & WPI_RX_INTR) 1796173362Sbenjsc wpi_notif_intr(sc); 1797173362Sbenjsc 1798173362Sbenjsc if (r & WPI_ALIVE_INTR) /* firmware initialized */ 1799173362Sbenjsc wakeup(sc); 1800173362Sbenjsc 1801173362Sbenjsc /* re-enable interrupts */ 1802173362Sbenjsc if (sc->sc_ifp->if_flags & IFF_UP) 1803173362Sbenjsc WPI_WRITE(sc, WPI_MASK, WPI_INTR_MASK); 1804173362Sbenjsc 1805173362Sbenjsc WPI_UNLOCK(sc); 1806173362Sbenjsc} 1807173362Sbenjsc 1808173362Sbenjscstatic uint8_t 1809173362Sbenjscwpi_plcp_signal(int rate) 1810173362Sbenjsc{ 1811173362Sbenjsc switch (rate) { 1812173362Sbenjsc /* CCK rates (returned values are device-dependent) */ 1813173362Sbenjsc case 2: return 10; 1814173362Sbenjsc case 4: return 20; 1815173362Sbenjsc case 11: return 55; 1816173362Sbenjsc case 22: return 110; 1817173362Sbenjsc 1818173362Sbenjsc /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1819173362Sbenjsc /* R1-R4 (ral/ural is R4-R1) */ 1820173362Sbenjsc case 12: return 0xd; 1821173362Sbenjsc case 18: return 0xf; 1822173362Sbenjsc case 24: return 0x5; 1823173362Sbenjsc case 36: return 0x7; 1824173362Sbenjsc case 48: return 0x9; 1825173362Sbenjsc case 72: return 0xb; 1826173362Sbenjsc case 96: return 0x1; 1827173362Sbenjsc case 108: return 0x3; 1828173362Sbenjsc 1829173362Sbenjsc /* unsupported rates (should not get there) */ 1830173362Sbenjsc default: return 0; 1831173362Sbenjsc } 1832173362Sbenjsc} 1833173362Sbenjsc 1834173362Sbenjsc/* quickly determine if a given rate is CCK or OFDM */ 1835173362Sbenjsc#define WPI_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22) 1836173362Sbenjsc 1837173362Sbenjsc/* 1838173362Sbenjsc * Construct the data packet for a transmit buffer and acutally put 1839173362Sbenjsc * the buffer onto the transmit ring, kicking the card to process the 1840173362Sbenjsc * the buffer. 1841173362Sbenjsc */ 1842173362Sbenjscstatic int 1843173362Sbenjscwpi_tx_data(struct wpi_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1844173362Sbenjsc int ac) 1845173362Sbenjsc{ 1846178354Ssam struct ieee80211vap *vap = ni->ni_vap; 1847178354Ssam struct ifnet *ifp = sc->sc_ifp; 1848178354Ssam struct ieee80211com *ic = ifp->if_l2com; 1849177043Sthompsa const struct chanAccParams *cap = &ic->ic_wme.wme_chanParams; 1850173362Sbenjsc struct wpi_tx_ring *ring = &sc->txq[ac]; 1851173362Sbenjsc struct wpi_tx_desc *desc; 1852173362Sbenjsc struct wpi_tx_data *data; 1853173362Sbenjsc struct wpi_tx_cmd *cmd; 1854173362Sbenjsc struct wpi_cmd_data *tx; 1855173362Sbenjsc struct ieee80211_frame *wh; 1856178354Ssam const struct ieee80211_txparam *tp; 1857173362Sbenjsc struct ieee80211_key *k; 1858173362Sbenjsc struct mbuf *mnew; 1859177043Sthompsa int i, error, nsegs, rate, hdrlen, ismcast; 1860173362Sbenjsc bus_dma_segment_t segs[WPI_MAX_SCATTER]; 1861173362Sbenjsc 1862173362Sbenjsc desc = &ring->desc[ring->cur]; 1863173362Sbenjsc data = &ring->data[ring->cur]; 1864173362Sbenjsc 1865173362Sbenjsc wh = mtod(m0, struct ieee80211_frame *); 1866173362Sbenjsc 1867177043Sthompsa hdrlen = ieee80211_hdrsize(wh); 1868177043Sthompsa ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1); 1869173362Sbenjsc 1870173362Sbenjsc if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1871178354Ssam k = ieee80211_crypto_encap(ni, m0); 1872177043Sthompsa if (k == NULL) { 1873173362Sbenjsc m_freem(m0); 1874173362Sbenjsc return ENOBUFS; 1875173362Sbenjsc } 1876173362Sbenjsc /* packet header may have moved, reset our local pointer */ 1877173362Sbenjsc wh = mtod(m0, struct ieee80211_frame *); 1878173362Sbenjsc } 1879173362Sbenjsc 1880173362Sbenjsc cmd = &ring->cmd[ring->cur]; 1881173362Sbenjsc cmd->code = WPI_CMD_TX_DATA; 1882173362Sbenjsc cmd->flags = 0; 1883173362Sbenjsc cmd->qid = ring->qid; 1884173362Sbenjsc cmd->idx = ring->cur; 1885173362Sbenjsc 1886173362Sbenjsc tx = (struct wpi_cmd_data *)cmd->data; 1887177043Sthompsa tx->flags = htole32(WPI_TX_AUTO_SEQ); 1888178354Ssam tx->timeout = htole16(0); 1889177043Sthompsa tx->ofdm_mask = 0xff; 1890177043Sthompsa tx->cck_mask = 0x0f; 1891177043Sthompsa tx->lifetime = htole32(WPI_LIFETIME_INFINITE); 1892177043Sthompsa tx->id = ismcast ? WPI_ID_BROADCAST : WPI_ID_BSS; 1893177043Sthompsa tx->len = htole16(m0->m_pkthdr.len); 1894173362Sbenjsc 1895177119Ssam if (!ismcast) { 1896177043Sthompsa if ((ni->ni_flags & IEEE80211_NODE_QOS) == 0 || 1897177043Sthompsa !cap->cap_wmeParams[ac].wmep_noackPolicy) 1898177043Sthompsa tx->flags |= htole32(WPI_TX_NEED_ACK); 1899178354Ssam if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) { 1900177043Sthompsa tx->flags |= htole32(WPI_TX_NEED_RTS|WPI_TX_FULL_TXOP); 1901177043Sthompsa tx->rts_ntries = 7; 1902177043Sthompsa } 1903173362Sbenjsc } 1904177043Sthompsa /* pick a rate */ 1905178354Ssam tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1906178354Ssam if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_MGT) { 1907173362Sbenjsc uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 1908173362Sbenjsc /* tell h/w to set timestamp in probe responses */ 1909173362Sbenjsc if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1910177043Sthompsa tx->flags |= htole32(WPI_TX_INSERT_TSTAMP); 1911173362Sbenjsc if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ || 1912177043Sthompsa subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ) 1913173362Sbenjsc tx->timeout = htole16(3); 1914173362Sbenjsc else 1915173362Sbenjsc tx->timeout = htole16(2); 1916178354Ssam rate = tp->mgmtrate; 1917177043Sthompsa } else if (ismcast) { 1918178354Ssam rate = tp->mcastrate; 1919178354Ssam } else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) { 1920178354Ssam rate = tp->ucastrate; 1921177043Sthompsa } else { 1922178354Ssam (void) ieee80211_amrr_choose(ni, &WPI_NODE(ni)->amn); 1923178354Ssam rate = ni->ni_txrate; 1924177043Sthompsa } 1925173362Sbenjsc tx->rate = wpi_plcp_signal(rate); 1926173362Sbenjsc 1927173362Sbenjsc /* be very persistant at sending frames out */ 1928178354Ssam#if 0 1929178354Ssam tx->data_ntries = tp->maxretry; 1930178354Ssam#else 1931178354Ssam tx->data_ntries = 15; /* XXX way too high */ 1932178354Ssam#endif 1933173362Sbenjsc 1934192468Ssam if (ieee80211_radiotap_active_vap(vap)) { 1935177043Sthompsa struct wpi_tx_radiotap_header *tap = &sc->sc_txtap; 1936177043Sthompsa tap->wt_flags = 0; 1937177043Sthompsa tap->wt_rate = rate; 1938177043Sthompsa tap->wt_hwqueue = ac; 1939177043Sthompsa if (wh->i_fc[1] & IEEE80211_FC1_WEP) 1940177043Sthompsa tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 1941178354Ssam 1942192468Ssam ieee80211_radiotap_tx(vap, m0); 1943177043Sthompsa } 1944173362Sbenjsc 1945173362Sbenjsc /* save and trim IEEE802.11 header */ 1946173362Sbenjsc m_copydata(m0, 0, hdrlen, (caddr_t)&tx->wh); 1947173362Sbenjsc m_adj(m0, hdrlen); 1948173362Sbenjsc 1949173362Sbenjsc error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m0, segs, 1950173362Sbenjsc &nsegs, BUS_DMA_NOWAIT); 1951173362Sbenjsc if (error != 0 && error != EFBIG) { 1952173362Sbenjsc device_printf(sc->sc_dev, "could not map mbuf (error %d)\n", 1953173362Sbenjsc error); 1954173362Sbenjsc m_freem(m0); 1955173362Sbenjsc return error; 1956173362Sbenjsc } 1957173362Sbenjsc if (error != 0) { 1958175418Sjhb /* XXX use m_collapse */ 1959173362Sbenjsc mnew = m_defrag(m0, M_DONTWAIT); 1960173362Sbenjsc if (mnew == NULL) { 1961173362Sbenjsc device_printf(sc->sc_dev, 1962173362Sbenjsc "could not defragment mbuf\n"); 1963173362Sbenjsc m_freem(m0); 1964173362Sbenjsc return ENOBUFS; 1965173362Sbenjsc } 1966173362Sbenjsc m0 = mnew; 1967173362Sbenjsc 1968173362Sbenjsc error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, 1969173362Sbenjsc m0, segs, &nsegs, BUS_DMA_NOWAIT); 1970173362Sbenjsc if (error != 0) { 1971173362Sbenjsc device_printf(sc->sc_dev, 1972173362Sbenjsc "could not map mbuf (error %d)\n", error); 1973173362Sbenjsc m_freem(m0); 1974173362Sbenjsc return error; 1975173362Sbenjsc } 1976173362Sbenjsc } 1977173362Sbenjsc 1978173362Sbenjsc data->m = m0; 1979173362Sbenjsc data->ni = ni; 1980173362Sbenjsc 1981173362Sbenjsc DPRINTFN(WPI_DEBUG_TX, ("sending data: qid=%d idx=%d len=%d nsegs=%d\n", 1982173362Sbenjsc ring->qid, ring->cur, m0->m_pkthdr.len, nsegs)); 1983173362Sbenjsc 1984173362Sbenjsc /* first scatter/gather segment is used by the tx data command */ 1985173362Sbenjsc desc->flags = htole32(WPI_PAD32(m0->m_pkthdr.len) << 28 | 1986173362Sbenjsc (1 + nsegs) << 24); 1987173362Sbenjsc desc->segs[0].addr = htole32(ring->cmd_dma.paddr + 1988173362Sbenjsc ring->cur * sizeof (struct wpi_tx_cmd)); 1989173362Sbenjsc desc->segs[0].len = htole32(4 + sizeof (struct wpi_cmd_data)); 1990173362Sbenjsc for (i = 1; i <= nsegs; i++) { 1991173362Sbenjsc desc->segs[i].addr = htole32(segs[i - 1].ds_addr); 1992173362Sbenjsc desc->segs[i].len = htole32(segs[i - 1].ds_len); 1993173362Sbenjsc } 1994173362Sbenjsc 1995173362Sbenjsc bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE); 1996173362Sbenjsc bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 1997173362Sbenjsc BUS_DMASYNC_PREWRITE); 1998173362Sbenjsc 1999173362Sbenjsc ring->queued++; 2000173362Sbenjsc 2001173362Sbenjsc /* kick ring */ 2002173362Sbenjsc ring->cur = (ring->cur + 1) % WPI_TX_RING_COUNT; 2003173362Sbenjsc WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur); 2004173362Sbenjsc 2005173362Sbenjsc return 0; 2006173362Sbenjsc} 2007173362Sbenjsc 2008173362Sbenjsc/** 2009173362Sbenjsc * Process data waiting to be sent on the IFNET output queue 2010173362Sbenjsc */ 2011173362Sbenjscstatic void 2012173362Sbenjscwpi_start(struct ifnet *ifp) 2013173362Sbenjsc{ 2014173362Sbenjsc struct wpi_softc *sc = ifp->if_softc; 2015178354Ssam 2016178354Ssam WPI_LOCK(sc); 2017178354Ssam wpi_start_locked(ifp); 2018178354Ssam WPI_UNLOCK(sc); 2019178354Ssam} 2020178354Ssam 2021178354Ssamstatic void 2022178354Ssamwpi_start_locked(struct ifnet *ifp) 2023178354Ssam{ 2024178354Ssam struct wpi_softc *sc = ifp->if_softc; 2025173362Sbenjsc struct ieee80211_node *ni; 2026178354Ssam struct mbuf *m; 2027178354Ssam int ac; 2028173362Sbenjsc 2029178354Ssam WPI_LOCK_ASSERT(sc); 2030178354Ssam 2031177043Sthompsa if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 2032177043Sthompsa return; 2033173362Sbenjsc 2034173362Sbenjsc for (;;) { 2035190458Sjmallett IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 2036178354Ssam if (m == NULL) 2037178354Ssam break; 2038178354Ssam ac = M_WME_GETAC(m); 2039178354Ssam if (sc->txq[ac].queued > sc->txq[ac].count - 8) { 2040178354Ssam /* there is no place left in this ring */ 2041178354Ssam IFQ_DRV_PREPEND(&ifp->if_snd, m); 2042178354Ssam ifp->if_drv_flags |= IFF_DRV_OACTIVE; 2043178354Ssam break; 2044178354Ssam } 2045178354Ssam ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 2046178354Ssam if (wpi_tx_data(sc, m, ni, ac) != 0) { 2047178354Ssam ieee80211_free_node(ni); 2048178354Ssam ifp->if_oerrors++; 2049178354Ssam break; 2050178354Ssam } 2051178354Ssam sc->sc_tx_timer = 5; 2052178354Ssam } 2053178354Ssam} 2054173362Sbenjsc 2055178354Ssamstatic int 2056178354Ssamwpi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2057178354Ssam const struct ieee80211_bpf_params *params) 2058178354Ssam{ 2059178354Ssam struct ieee80211com *ic = ni->ni_ic; 2060178354Ssam struct ifnet *ifp = ic->ic_ifp; 2061178354Ssam struct wpi_softc *sc = ifp->if_softc; 2062173362Sbenjsc 2063178354Ssam /* prevent management frames from being sent if we're not ready */ 2064178354Ssam if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 2065178354Ssam m_freem(m); 2066178354Ssam ieee80211_free_node(ni); 2067178354Ssam return ENETDOWN; 2068178354Ssam } 2069178354Ssam WPI_LOCK(sc); 2070173362Sbenjsc 2071178354Ssam /* management frames go into ring 0 */ 2072178354Ssam if (sc->txq[0].queued > sc->txq[0].count - 8) { 2073178354Ssam ifp->if_drv_flags |= IFF_DRV_OACTIVE; 2074178354Ssam m_freem(m); 2075178354Ssam WPI_UNLOCK(sc); 2076178354Ssam ieee80211_free_node(ni); 2077178354Ssam return ENOBUFS; /* XXX */ 2078178354Ssam } 2079173362Sbenjsc 2080178354Ssam ifp->if_opackets++; 2081178354Ssam if (wpi_tx_data(sc, m, ni, 0) != 0) 2082178354Ssam goto bad; 2083178354Ssam sc->sc_tx_timer = 5; 2084178354Ssam callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc); 2085173362Sbenjsc 2086178354Ssam WPI_UNLOCK(sc); 2087178354Ssam return 0; 2088178354Ssambad: 2089178354Ssam ifp->if_oerrors++; 2090178354Ssam WPI_UNLOCK(sc); 2091178354Ssam ieee80211_free_node(ni); 2092178354Ssam return EIO; /* XXX */ 2093173362Sbenjsc} 2094173362Sbenjsc 2095173362Sbenjscstatic int 2096173362Sbenjscwpi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 2097173362Sbenjsc{ 2098173362Sbenjsc struct wpi_softc *sc = ifp->if_softc; 2099178354Ssam struct ieee80211com *ic = ifp->if_l2com; 2100178354Ssam struct ifreq *ifr = (struct ifreq *) data; 2101178354Ssam int error = 0, startall = 0; 2102173362Sbenjsc 2103173362Sbenjsc switch (cmd) { 2104173362Sbenjsc case SIOCSIFFLAGS: 2105178704Sthompsa WPI_LOCK(sc); 2106173362Sbenjsc if ((ifp->if_flags & IFF_UP)) { 2107178354Ssam if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 2108177043Sthompsa wpi_init_locked(sc, 0); 2109178354Ssam startall = 1; 2110178354Ssam } 2111177043Sthompsa } else if ((ifp->if_drv_flags & IFF_DRV_RUNNING) || 2112177043Sthompsa (sc->flags & WPI_FLAG_HW_RADIO_OFF)) 2113173362Sbenjsc wpi_stop_locked(sc); 2114178704Sthompsa WPI_UNLOCK(sc); 2115178704Sthompsa if (startall) 2116178704Sthompsa ieee80211_start_all(ic); 2117173362Sbenjsc break; 2118178354Ssam case SIOCGIFMEDIA: 2119178354Ssam error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 2120178354Ssam break; 2121178704Sthompsa case SIOCGIFADDR: 2122178354Ssam error = ether_ioctl(ifp, cmd, data); 2123178354Ssam break; 2124178704Sthompsa default: 2125178704Sthompsa error = EINVAL; 2126178704Sthompsa break; 2127173362Sbenjsc } 2128173362Sbenjsc return error; 2129173362Sbenjsc} 2130173362Sbenjsc 2131173362Sbenjsc/* 2132173362Sbenjsc * Extract various information from EEPROM. 2133173362Sbenjsc */ 2134173362Sbenjscstatic void 2135190526Ssamwpi_read_eeprom(struct wpi_softc *sc, uint8_t macaddr[IEEE80211_ADDR_LEN]) 2136173362Sbenjsc{ 2137173362Sbenjsc int i; 2138173362Sbenjsc 2139173362Sbenjsc /* read the hardware capabilities, revision and SKU type */ 2140173362Sbenjsc wpi_read_prom_data(sc, WPI_EEPROM_CAPABILITIES, &sc->cap,1); 2141173362Sbenjsc wpi_read_prom_data(sc, WPI_EEPROM_REVISION, &sc->rev,2); 2142173362Sbenjsc wpi_read_prom_data(sc, WPI_EEPROM_TYPE, &sc->type, 1); 2143173362Sbenjsc 2144173362Sbenjsc /* read the regulatory domain */ 2145173362Sbenjsc wpi_read_prom_data(sc, WPI_EEPROM_DOMAIN, sc->domain, 4); 2146173362Sbenjsc 2147173362Sbenjsc /* read in the hw MAC address */ 2148190526Ssam wpi_read_prom_data(sc, WPI_EEPROM_MAC, macaddr, 6); 2149173362Sbenjsc 2150173362Sbenjsc /* read the list of authorized channels */ 2151173362Sbenjsc for (i = 0; i < WPI_CHAN_BANDS_COUNT; i++) 2152173362Sbenjsc wpi_read_eeprom_channels(sc,i); 2153173362Sbenjsc 2154173362Sbenjsc /* read the power level calibration info for each group */ 2155173362Sbenjsc for (i = 0; i < WPI_POWER_GROUPS_COUNT; i++) 2156173362Sbenjsc wpi_read_eeprom_group(sc,i); 2157173362Sbenjsc} 2158173362Sbenjsc 2159173362Sbenjsc/* 2160173362Sbenjsc * Send a command to the firmware. 2161173362Sbenjsc */ 2162173362Sbenjscstatic int 2163173362Sbenjscwpi_cmd(struct wpi_softc *sc, int code, const void *buf, int size, int async) 2164173362Sbenjsc{ 2165173362Sbenjsc struct wpi_tx_ring *ring = &sc->cmdq; 2166173362Sbenjsc struct wpi_tx_desc *desc; 2167173362Sbenjsc struct wpi_tx_cmd *cmd; 2168173362Sbenjsc 2169173362Sbenjsc#ifdef WPI_DEBUG 2170173362Sbenjsc if (!async) { 2171173362Sbenjsc WPI_LOCK_ASSERT(sc); 2172173362Sbenjsc } 2173173362Sbenjsc#endif 2174173362Sbenjsc 2175173362Sbenjsc DPRINTFN(WPI_DEBUG_CMD,("wpi_cmd %d size %d async %d\n", code, size, 2176173362Sbenjsc async)); 2177173362Sbenjsc 2178173362Sbenjsc if (sc->flags & WPI_FLAG_BUSY) { 2179173362Sbenjsc device_printf(sc->sc_dev, "%s: cmd %d not sent, busy\n", 2180173362Sbenjsc __func__, code); 2181173362Sbenjsc return EAGAIN; 2182173362Sbenjsc } 2183173362Sbenjsc sc->flags|= WPI_FLAG_BUSY; 2184173362Sbenjsc 2185173362Sbenjsc KASSERT(size <= sizeof cmd->data, ("command %d too large: %d bytes", 2186173362Sbenjsc code, size)); 2187173362Sbenjsc 2188173362Sbenjsc desc = &ring->desc[ring->cur]; 2189173362Sbenjsc cmd = &ring->cmd[ring->cur]; 2190173362Sbenjsc 2191173362Sbenjsc cmd->code = code; 2192173362Sbenjsc cmd->flags = 0; 2193173362Sbenjsc cmd->qid = ring->qid; 2194173362Sbenjsc cmd->idx = ring->cur; 2195173362Sbenjsc memcpy(cmd->data, buf, size); 2196173362Sbenjsc 2197173362Sbenjsc desc->flags = htole32(WPI_PAD32(size) << 28 | 1 << 24); 2198173362Sbenjsc desc->segs[0].addr = htole32(ring->cmd_dma.paddr + 2199173362Sbenjsc ring->cur * sizeof (struct wpi_tx_cmd)); 2200173362Sbenjsc desc->segs[0].len = htole32(4 + size); 2201173362Sbenjsc 2202173362Sbenjsc /* kick cmd ring */ 2203173362Sbenjsc ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT; 2204173362Sbenjsc WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur); 2205173362Sbenjsc 2206173362Sbenjsc if (async) { 2207173362Sbenjsc sc->flags &= ~ WPI_FLAG_BUSY; 2208173362Sbenjsc return 0; 2209173362Sbenjsc } 2210173362Sbenjsc 2211173362Sbenjsc return msleep(cmd, &sc->sc_mtx, PCATCH, "wpicmd", hz); 2212173362Sbenjsc} 2213173362Sbenjsc 2214173362Sbenjscstatic int 2215173362Sbenjscwpi_wme_update(struct ieee80211com *ic) 2216173362Sbenjsc{ 2217173362Sbenjsc#define WPI_EXP2(v) htole16((1 << (v)) - 1) 2218173362Sbenjsc#define WPI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) 2219173362Sbenjsc struct wpi_softc *sc = ic->ic_ifp->if_softc; 2220173362Sbenjsc const struct wmeParams *wmep; 2221173362Sbenjsc struct wpi_wme_setup wme; 2222173362Sbenjsc int ac; 2223173362Sbenjsc 2224173362Sbenjsc /* don't override default WME values if WME is not actually enabled */ 2225173362Sbenjsc if (!(ic->ic_flags & IEEE80211_F_WME)) 2226173362Sbenjsc return 0; 2227173362Sbenjsc 2228173362Sbenjsc wme.flags = 0; 2229173362Sbenjsc for (ac = 0; ac < WME_NUM_AC; ac++) { 2230173362Sbenjsc wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 2231173362Sbenjsc wme.ac[ac].aifsn = wmep->wmep_aifsn; 2232173362Sbenjsc wme.ac[ac].cwmin = WPI_EXP2(wmep->wmep_logcwmin); 2233173362Sbenjsc wme.ac[ac].cwmax = WPI_EXP2(wmep->wmep_logcwmax); 2234173362Sbenjsc wme.ac[ac].txop = WPI_USEC(wmep->wmep_txopLimit); 2235173362Sbenjsc 2236173362Sbenjsc DPRINTF(("setting WME for queue %d aifsn=%d cwmin=%d cwmax=%d " 2237173362Sbenjsc "txop=%d\n", ac, wme.ac[ac].aifsn, wme.ac[ac].cwmin, 2238173362Sbenjsc wme.ac[ac].cwmax, wme.ac[ac].txop)); 2239173362Sbenjsc } 2240173362Sbenjsc return wpi_cmd(sc, WPI_CMD_SET_WME, &wme, sizeof wme, 1); 2241173362Sbenjsc#undef WPI_USEC 2242173362Sbenjsc#undef WPI_EXP2 2243173362Sbenjsc} 2244173362Sbenjsc 2245173362Sbenjsc/* 2246173362Sbenjsc * Configure h/w multi-rate retries. 2247173362Sbenjsc */ 2248173362Sbenjscstatic int 2249173362Sbenjscwpi_mrr_setup(struct wpi_softc *sc) 2250173362Sbenjsc{ 2251178354Ssam struct ifnet *ifp = sc->sc_ifp; 2252178354Ssam struct ieee80211com *ic = ifp->if_l2com; 2253173362Sbenjsc struct wpi_mrr_setup mrr; 2254173362Sbenjsc int i, error; 2255173362Sbenjsc 2256173362Sbenjsc memset(&mrr, 0, sizeof (struct wpi_mrr_setup)); 2257173362Sbenjsc 2258173362Sbenjsc /* CCK rates (not used with 802.11a) */ 2259173362Sbenjsc for (i = WPI_CCK1; i <= WPI_CCK11; i++) { 2260173362Sbenjsc mrr.rates[i].flags = 0; 2261173362Sbenjsc mrr.rates[i].signal = wpi_ridx_to_plcp[i]; 2262173362Sbenjsc /* fallback to the immediate lower CCK rate (if any) */ 2263173362Sbenjsc mrr.rates[i].next = (i == WPI_CCK1) ? WPI_CCK1 : i - 1; 2264173362Sbenjsc /* try one time at this rate before falling back to "next" */ 2265173362Sbenjsc mrr.rates[i].ntries = 1; 2266173362Sbenjsc } 2267173362Sbenjsc 2268173362Sbenjsc /* OFDM rates (not used with 802.11b) */ 2269173362Sbenjsc for (i = WPI_OFDM6; i <= WPI_OFDM54; i++) { 2270173362Sbenjsc mrr.rates[i].flags = 0; 2271173362Sbenjsc mrr.rates[i].signal = wpi_ridx_to_plcp[i]; 2272173362Sbenjsc /* fallback to the immediate lower OFDM rate (if any) */ 2273173362Sbenjsc /* we allow fallback from OFDM/6 to CCK/2 in 11b/g mode */ 2274173362Sbenjsc mrr.rates[i].next = (i == WPI_OFDM6) ? 2275173362Sbenjsc ((ic->ic_curmode == IEEE80211_MODE_11A) ? 2276173362Sbenjsc WPI_OFDM6 : WPI_CCK2) : 2277173362Sbenjsc i - 1; 2278173362Sbenjsc /* try one time at this rate before falling back to "next" */ 2279173362Sbenjsc mrr.rates[i].ntries = 1; 2280173362Sbenjsc } 2281173362Sbenjsc 2282173362Sbenjsc /* setup MRR for control frames */ 2283173362Sbenjsc mrr.which = htole32(WPI_MRR_CTL); 2284173362Sbenjsc error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0); 2285173362Sbenjsc if (error != 0) { 2286173362Sbenjsc device_printf(sc->sc_dev, 2287173362Sbenjsc "could not setup MRR for control frames\n"); 2288173362Sbenjsc return error; 2289173362Sbenjsc } 2290173362Sbenjsc 2291173362Sbenjsc /* setup MRR for data frames */ 2292173362Sbenjsc mrr.which = htole32(WPI_MRR_DATA); 2293173362Sbenjsc error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0); 2294173362Sbenjsc if (error != 0) { 2295173362Sbenjsc device_printf(sc->sc_dev, 2296173362Sbenjsc "could not setup MRR for data frames\n"); 2297173362Sbenjsc return error; 2298173362Sbenjsc } 2299173362Sbenjsc 2300173362Sbenjsc return 0; 2301173362Sbenjsc} 2302173362Sbenjsc 2303173362Sbenjscstatic void 2304173362Sbenjscwpi_set_led(struct wpi_softc *sc, uint8_t which, uint8_t off, uint8_t on) 2305173362Sbenjsc{ 2306173362Sbenjsc struct wpi_cmd_led led; 2307173362Sbenjsc 2308173362Sbenjsc led.which = which; 2309173362Sbenjsc led.unit = htole32(100000); /* on/off in unit of 100ms */ 2310173362Sbenjsc led.off = off; 2311173362Sbenjsc led.on = on; 2312173362Sbenjsc 2313173362Sbenjsc (void)wpi_cmd(sc, WPI_CMD_SET_LED, &led, sizeof led, 1); 2314173362Sbenjsc} 2315173362Sbenjsc 2316173362Sbenjscstatic void 2317173362Sbenjscwpi_enable_tsf(struct wpi_softc *sc, struct ieee80211_node *ni) 2318173362Sbenjsc{ 2319173362Sbenjsc struct wpi_cmd_tsf tsf; 2320173362Sbenjsc uint64_t val, mod; 2321173362Sbenjsc 2322173362Sbenjsc memset(&tsf, 0, sizeof tsf); 2323173362Sbenjsc memcpy(&tsf.tstamp, ni->ni_tstamp.data, 8); 2324173362Sbenjsc tsf.bintval = htole16(ni->ni_intval); 2325173362Sbenjsc tsf.lintval = htole16(10); 2326173362Sbenjsc 2327173362Sbenjsc /* compute remaining time until next beacon */ 2328173362Sbenjsc val = (uint64_t)ni->ni_intval * 1024; /* msec -> usec */ 2329173362Sbenjsc mod = le64toh(tsf.tstamp) % val; 2330173362Sbenjsc tsf.binitval = htole32((uint32_t)(val - mod)); 2331173362Sbenjsc 2332173362Sbenjsc if (wpi_cmd(sc, WPI_CMD_TSF, &tsf, sizeof tsf, 1) != 0) 2333173362Sbenjsc device_printf(sc->sc_dev, "could not enable TSF\n"); 2334173362Sbenjsc} 2335173362Sbenjsc 2336173362Sbenjsc#if 0 2337173362Sbenjsc/* 2338173362Sbenjsc * Build a beacon frame that the firmware will broadcast periodically in 2339173362Sbenjsc * IBSS or HostAP modes. 2340173362Sbenjsc */ 2341173362Sbenjscstatic int 2342173362Sbenjscwpi_setup_beacon(struct wpi_softc *sc, struct ieee80211_node *ni) 2343173362Sbenjsc{ 2344178354Ssam struct ifnet *ifp = sc->sc_ifp; 2345178354Ssam struct ieee80211com *ic = ifp->if_l2com; 2346173362Sbenjsc struct wpi_tx_ring *ring = &sc->cmdq; 2347173362Sbenjsc struct wpi_tx_desc *desc; 2348173362Sbenjsc struct wpi_tx_data *data; 2349173362Sbenjsc struct wpi_tx_cmd *cmd; 2350173362Sbenjsc struct wpi_cmd_beacon *bcn; 2351173362Sbenjsc struct ieee80211_beacon_offsets bo; 2352173362Sbenjsc struct mbuf *m0; 2353173362Sbenjsc bus_addr_t physaddr; 2354173362Sbenjsc int error; 2355173362Sbenjsc 2356173362Sbenjsc desc = &ring->desc[ring->cur]; 2357173362Sbenjsc data = &ring->data[ring->cur]; 2358173362Sbenjsc 2359173362Sbenjsc m0 = ieee80211_beacon_alloc(ic, ni, &bo); 2360173362Sbenjsc if (m0 == NULL) { 2361173362Sbenjsc device_printf(sc->sc_dev, "could not allocate beacon frame\n"); 2362173362Sbenjsc return ENOMEM; 2363173362Sbenjsc } 2364173362Sbenjsc 2365173362Sbenjsc cmd = &ring->cmd[ring->cur]; 2366173362Sbenjsc cmd->code = WPI_CMD_SET_BEACON; 2367173362Sbenjsc cmd->flags = 0; 2368173362Sbenjsc cmd->qid = ring->qid; 2369173362Sbenjsc cmd->idx = ring->cur; 2370173362Sbenjsc 2371173362Sbenjsc bcn = (struct wpi_cmd_beacon *)cmd->data; 2372173362Sbenjsc memset(bcn, 0, sizeof (struct wpi_cmd_beacon)); 2373173362Sbenjsc bcn->id = WPI_ID_BROADCAST; 2374173362Sbenjsc bcn->ofdm_mask = 0xff; 2375173362Sbenjsc bcn->cck_mask = 0x0f; 2376173362Sbenjsc bcn->lifetime = htole32(WPI_LIFETIME_INFINITE); 2377173362Sbenjsc bcn->len = htole16(m0->m_pkthdr.len); 2378173362Sbenjsc bcn->rate = (ic->ic_curmode == IEEE80211_MODE_11A) ? 2379173362Sbenjsc wpi_plcp_signal(12) : wpi_plcp_signal(2); 2380173362Sbenjsc bcn->flags = htole32(WPI_TX_AUTO_SEQ | WPI_TX_INSERT_TSTAMP); 2381173362Sbenjsc 2382173362Sbenjsc /* save and trim IEEE802.11 header */ 2383173362Sbenjsc m_copydata(m0, 0, sizeof (struct ieee80211_frame), (caddr_t)&bcn->wh); 2384173362Sbenjsc m_adj(m0, sizeof (struct ieee80211_frame)); 2385173362Sbenjsc 2386173362Sbenjsc /* assume beacon frame is contiguous */ 2387173362Sbenjsc error = bus_dmamap_load(ring->data_dmat, data->map, mtod(m0, void *), 2388173362Sbenjsc m0->m_pkthdr.len, wpi_dma_map_addr, &physaddr, 0); 2389173362Sbenjsc if (error != 0) { 2390173362Sbenjsc device_printf(sc->sc_dev, "could not map beacon\n"); 2391173362Sbenjsc m_freem(m0); 2392173362Sbenjsc return error; 2393173362Sbenjsc } 2394173362Sbenjsc 2395173362Sbenjsc data->m = m0; 2396173362Sbenjsc 2397173362Sbenjsc /* first scatter/gather segment is used by the beacon command */ 2398173362Sbenjsc desc->flags = htole32(WPI_PAD32(m0->m_pkthdr.len) << 28 | 2 << 24); 2399173362Sbenjsc desc->segs[0].addr = htole32(ring->cmd_dma.paddr + 2400173362Sbenjsc ring->cur * sizeof (struct wpi_tx_cmd)); 2401173362Sbenjsc desc->segs[0].len = htole32(4 + sizeof (struct wpi_cmd_beacon)); 2402173362Sbenjsc desc->segs[1].addr = htole32(physaddr); 2403173362Sbenjsc desc->segs[1].len = htole32(m0->m_pkthdr.len); 2404173362Sbenjsc 2405173362Sbenjsc /* kick cmd ring */ 2406173362Sbenjsc ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT; 2407173362Sbenjsc WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur); 2408173362Sbenjsc 2409173362Sbenjsc return 0; 2410173362Sbenjsc} 2411173362Sbenjsc#endif 2412173362Sbenjsc 2413173362Sbenjscstatic int 2414178354Ssamwpi_auth(struct wpi_softc *sc, struct ieee80211vap *vap) 2415173362Sbenjsc{ 2416178354Ssam struct ieee80211com *ic = vap->iv_ic; 2417178354Ssam struct ieee80211_node *ni = vap->iv_bss; 2418173362Sbenjsc struct wpi_node_info node; 2419173362Sbenjsc int error; 2420173362Sbenjsc 2421177043Sthompsa 2422173362Sbenjsc /* update adapter's configuration */ 2423177043Sthompsa sc->config.associd = 0; 2424177043Sthompsa sc->config.filter &= ~htole32(WPI_FILTER_BSS); 2425173362Sbenjsc IEEE80211_ADDR_COPY(sc->config.bssid, ni->ni_bssid); 2426173362Sbenjsc sc->config.chan = ieee80211_chan2ieee(ic, ni->ni_chan); 2427173362Sbenjsc if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) { 2428173362Sbenjsc sc->config.flags |= htole32(WPI_CONFIG_AUTO | 2429173362Sbenjsc WPI_CONFIG_24GHZ); 2430173362Sbenjsc } 2431178354Ssam if (IEEE80211_IS_CHAN_A(ni->ni_chan)) { 2432173362Sbenjsc sc->config.cck_mask = 0; 2433173362Sbenjsc sc->config.ofdm_mask = 0x15; 2434178354Ssam } else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) { 2435173362Sbenjsc sc->config.cck_mask = 0x03; 2436173362Sbenjsc sc->config.ofdm_mask = 0; 2437178354Ssam } else { 2438178354Ssam /* XXX assume 802.11b/g */ 2439173362Sbenjsc sc->config.cck_mask = 0x0f; 2440173362Sbenjsc sc->config.ofdm_mask = 0x15; 2441173362Sbenjsc } 2442173362Sbenjsc 2443173362Sbenjsc DPRINTF(("config chan %d flags %x cck %x ofdm %x\n", sc->config.chan, 2444173362Sbenjsc sc->config.flags, sc->config.cck_mask, sc->config.ofdm_mask)); 2445173362Sbenjsc error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config, 2446173362Sbenjsc sizeof (struct wpi_config), 1); 2447173362Sbenjsc if (error != 0) { 2448173362Sbenjsc device_printf(sc->sc_dev, "could not configure\n"); 2449173362Sbenjsc return error; 2450173362Sbenjsc } 2451173362Sbenjsc 2452173362Sbenjsc /* configuration has changed, set Tx power accordingly */ 2453173362Sbenjsc if ((error = wpi_set_txpower(sc, ni->ni_chan, 1)) != 0) { 2454173362Sbenjsc device_printf(sc->sc_dev, "could not set Tx power\n"); 2455173362Sbenjsc return error; 2456173362Sbenjsc } 2457173362Sbenjsc 2458173362Sbenjsc /* add default node */ 2459173362Sbenjsc memset(&node, 0, sizeof node); 2460173362Sbenjsc IEEE80211_ADDR_COPY(node.bssid, ni->ni_bssid); 2461173362Sbenjsc node.id = WPI_ID_BSS; 2462173362Sbenjsc node.rate = (ic->ic_curmode == IEEE80211_MODE_11A) ? 2463173362Sbenjsc wpi_plcp_signal(12) : wpi_plcp_signal(2); 2464173362Sbenjsc node.action = htole32(WPI_ACTION_SET_RATE); 2465173362Sbenjsc node.antenna = WPI_ANTENNA_BOTH; 2466173362Sbenjsc error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 1); 2467177043Sthompsa if (error != 0) 2468177043Sthompsa device_printf(sc->sc_dev, "could not add BSS node\n"); 2469177043Sthompsa 2470177043Sthompsa return (error); 2471177043Sthompsa} 2472177043Sthompsa 2473177043Sthompsastatic int 2474178354Ssamwpi_run(struct wpi_softc *sc, struct ieee80211vap *vap) 2475177043Sthompsa{ 2476178354Ssam struct ieee80211com *ic = vap->iv_ic; 2477178354Ssam struct ieee80211_node *ni = vap->iv_bss; 2478177043Sthompsa int error; 2479177043Sthompsa 2480178354Ssam if (vap->iv_opmode == IEEE80211_M_MONITOR) { 2481178354Ssam /* link LED blinks while monitoring */ 2482178354Ssam wpi_set_led(sc, WPI_LED_LINK, 5, 5); 2483178354Ssam return 0; 2484178354Ssam } 2485178354Ssam 2486177043Sthompsa wpi_enable_tsf(sc, ni); 2487177043Sthompsa 2488177043Sthompsa /* update adapter's configuration */ 2489177043Sthompsa sc->config.associd = htole16(ni->ni_associd & ~0xc000); 2490177043Sthompsa /* short preamble/slot time are negotiated when associating */ 2491177043Sthompsa sc->config.flags &= ~htole32(WPI_CONFIG_SHPREAMBLE | 2492177043Sthompsa WPI_CONFIG_SHSLOT); 2493177043Sthompsa if (ic->ic_flags & IEEE80211_F_SHSLOT) 2494177043Sthompsa sc->config.flags |= htole32(WPI_CONFIG_SHSLOT); 2495177043Sthompsa if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 2496177043Sthompsa sc->config.flags |= htole32(WPI_CONFIG_SHPREAMBLE); 2497177043Sthompsa sc->config.filter |= htole32(WPI_FILTER_BSS); 2498177043Sthompsa 2499177043Sthompsa /* XXX put somewhere HC_QOS_SUPPORT_ASSOC + HC_IBSS_START */ 2500177043Sthompsa 2501177043Sthompsa DPRINTF(("config chan %d flags %x\n", sc->config.chan, 2502177043Sthompsa sc->config.flags)); 2503177043Sthompsa error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config, sizeof (struct 2504177043Sthompsa wpi_config), 1); 2505173362Sbenjsc if (error != 0) { 2506177043Sthompsa device_printf(sc->sc_dev, "could not update configuration\n"); 2507173362Sbenjsc return error; 2508173362Sbenjsc } 2509173362Sbenjsc 2510178354Ssam error = wpi_set_txpower(sc, ni->ni_chan, 1); 2511177043Sthompsa if (error != 0) { 2512177043Sthompsa device_printf(sc->sc_dev, "could set txpower\n"); 2513177043Sthompsa return error; 2514177043Sthompsa } 2515173362Sbenjsc 2516177043Sthompsa /* link LED always on while associated */ 2517177043Sthompsa wpi_set_led(sc, WPI_LED_LINK, 0, 1); 2518177043Sthompsa 2519177043Sthompsa /* start automatic rate control timer */ 2520178354Ssam callout_reset(&sc->calib_to, 60*hz, wpi_calib_timeout, sc); 2521177043Sthompsa 2522177043Sthompsa return (error); 2523173362Sbenjsc} 2524173362Sbenjsc 2525173362Sbenjsc/* 2526173362Sbenjsc * Send a scan request to the firmware. Since this command is huge, we map it 2527173362Sbenjsc * into a mbufcluster instead of using the pre-allocated set of commands. Note, 2528173362Sbenjsc * much of this code is similar to that in wpi_cmd but because we must manually 2529173362Sbenjsc * construct the probe & channels, we duplicate what's needed here. XXX In the 2530173362Sbenjsc * future, this function should be modified to use wpi_cmd to help cleanup the 2531173362Sbenjsc * code base. 2532173362Sbenjsc */ 2533173362Sbenjscstatic int 2534173362Sbenjscwpi_scan(struct wpi_softc *sc) 2535173362Sbenjsc{ 2536178354Ssam struct ifnet *ifp = sc->sc_ifp; 2537178354Ssam struct ieee80211com *ic = ifp->if_l2com; 2538177043Sthompsa struct ieee80211_scan_state *ss = ic->ic_scan; 2539173362Sbenjsc struct wpi_tx_ring *ring = &sc->cmdq; 2540173362Sbenjsc struct wpi_tx_desc *desc; 2541173362Sbenjsc struct wpi_tx_data *data; 2542173362Sbenjsc struct wpi_tx_cmd *cmd; 2543173362Sbenjsc struct wpi_scan_hdr *hdr; 2544173362Sbenjsc struct wpi_scan_chan *chan; 2545173362Sbenjsc struct ieee80211_frame *wh; 2546173362Sbenjsc struct ieee80211_rateset *rs; 2547173362Sbenjsc struct ieee80211_channel *c; 2548173362Sbenjsc enum ieee80211_phymode mode; 2549173362Sbenjsc uint8_t *frm; 2550177043Sthompsa int nrates, pktlen, error, i, nssid; 2551173362Sbenjsc bus_addr_t physaddr; 2552173362Sbenjsc 2553173362Sbenjsc desc = &ring->desc[ring->cur]; 2554173362Sbenjsc data = &ring->data[ring->cur]; 2555173362Sbenjsc 2556173362Sbenjsc data->m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 2557173362Sbenjsc if (data->m == NULL) { 2558173362Sbenjsc device_printf(sc->sc_dev, 2559173362Sbenjsc "could not allocate mbuf for scan command\n"); 2560173362Sbenjsc return ENOMEM; 2561173362Sbenjsc } 2562173362Sbenjsc 2563173362Sbenjsc cmd = mtod(data->m, struct wpi_tx_cmd *); 2564173362Sbenjsc cmd->code = WPI_CMD_SCAN; 2565173362Sbenjsc cmd->flags = 0; 2566173362Sbenjsc cmd->qid = ring->qid; 2567173362Sbenjsc cmd->idx = ring->cur; 2568173362Sbenjsc 2569173362Sbenjsc hdr = (struct wpi_scan_hdr *)cmd->data; 2570173362Sbenjsc memset(hdr, 0, sizeof(struct wpi_scan_hdr)); 2571173362Sbenjsc 2572173362Sbenjsc /* 2573173362Sbenjsc * Move to the next channel if no packets are received within 5 msecs 2574173362Sbenjsc * after sending the probe request (this helps to reduce the duration 2575173362Sbenjsc * of active scans). 2576173362Sbenjsc */ 2577173362Sbenjsc hdr->quiet = htole16(5); 2578173362Sbenjsc hdr->threshold = htole16(1); 2579173362Sbenjsc 2580173362Sbenjsc if (IEEE80211_IS_CHAN_A(ic->ic_curchan)) { 2581173362Sbenjsc /* send probe requests at 6Mbps */ 2582173362Sbenjsc hdr->tx.rate = wpi_ridx_to_plcp[WPI_OFDM6]; 2583173362Sbenjsc 2584173362Sbenjsc /* Enable crc checking */ 2585173362Sbenjsc hdr->promotion = htole16(1); 2586173362Sbenjsc } else { 2587173362Sbenjsc hdr->flags = htole32(WPI_CONFIG_24GHZ | WPI_CONFIG_AUTO); 2588173362Sbenjsc /* send probe requests at 1Mbps */ 2589173362Sbenjsc hdr->tx.rate = wpi_ridx_to_plcp[WPI_CCK1]; 2590173362Sbenjsc } 2591173362Sbenjsc hdr->tx.id = WPI_ID_BROADCAST; 2592173362Sbenjsc hdr->tx.lifetime = htole32(WPI_LIFETIME_INFINITE); 2593173362Sbenjsc hdr->tx.flags = htole32(WPI_TX_AUTO_SEQ); 2594173362Sbenjsc 2595178354Ssam memset(hdr->scan_essids, 0, sizeof(hdr->scan_essids)); 2596177043Sthompsa nssid = MIN(ss->ss_nssid, WPI_SCAN_MAX_ESSIDS); 2597178354Ssam for (i = 0; i < nssid; i++) { 2598177043Sthompsa hdr->scan_essids[i].id = IEEE80211_ELEMID_SSID; 2599177043Sthompsa hdr->scan_essids[i].esslen = MIN(ss->ss_ssid[i].len, 32); 2600177043Sthompsa memcpy(hdr->scan_essids[i].essid, ss->ss_ssid[i].ssid, 2601177043Sthompsa hdr->scan_essids[i].esslen); 2602179957Sthompsa#ifdef WPI_DEBUG 2603177043Sthompsa if (wpi_debug & WPI_DEBUG_SCANNING) { 2604177043Sthompsa printf("Scanning Essid: "); 2605178354Ssam ieee80211_print_essid(hdr->scan_essids[i].essid, 2606178354Ssam hdr->scan_essids[i].esslen); 2607177043Sthompsa printf("\n"); 2608177043Sthompsa } 2609179957Sthompsa#endif 2610173362Sbenjsc } 2611173362Sbenjsc 2612173362Sbenjsc /* 2613173362Sbenjsc * Build a probe request frame. Most of the following code is a 2614173362Sbenjsc * copy & paste of what is done in net80211. 2615173362Sbenjsc */ 2616173362Sbenjsc wh = (struct ieee80211_frame *)&hdr->scan_essids[4]; 2617173362Sbenjsc wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT | 2618173362Sbenjsc IEEE80211_FC0_SUBTYPE_PROBE_REQ; 2619173362Sbenjsc wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 2620173362Sbenjsc IEEE80211_ADDR_COPY(wh->i_addr1, ifp->if_broadcastaddr); 2621190526Ssam IEEE80211_ADDR_COPY(wh->i_addr2, IF_LLADDR(ifp)); 2622173362Sbenjsc IEEE80211_ADDR_COPY(wh->i_addr3, ifp->if_broadcastaddr); 2623173362Sbenjsc *(u_int16_t *)&wh->i_dur[0] = 0; /* filled by h/w */ 2624173362Sbenjsc *(u_int16_t *)&wh->i_seq[0] = 0; /* filled by h/w */ 2625173362Sbenjsc 2626173362Sbenjsc frm = (uint8_t *)(wh + 1); 2627173362Sbenjsc 2628173362Sbenjsc /* add essid IE, the hardware will fill this in for us */ 2629173362Sbenjsc *frm++ = IEEE80211_ELEMID_SSID; 2630173362Sbenjsc *frm++ = 0; 2631173362Sbenjsc 2632173362Sbenjsc mode = ieee80211_chan2mode(ic->ic_curchan); 2633173362Sbenjsc rs = &ic->ic_sup_rates[mode]; 2634173362Sbenjsc 2635173362Sbenjsc /* add supported rates IE */ 2636173362Sbenjsc *frm++ = IEEE80211_ELEMID_RATES; 2637173362Sbenjsc nrates = rs->rs_nrates; 2638173362Sbenjsc if (nrates > IEEE80211_RATE_SIZE) 2639173362Sbenjsc nrates = IEEE80211_RATE_SIZE; 2640173362Sbenjsc *frm++ = nrates; 2641173362Sbenjsc memcpy(frm, rs->rs_rates, nrates); 2642173362Sbenjsc frm += nrates; 2643173362Sbenjsc 2644173362Sbenjsc /* add supported xrates IE */ 2645173362Sbenjsc if (rs->rs_nrates > IEEE80211_RATE_SIZE) { 2646173362Sbenjsc nrates = rs->rs_nrates - IEEE80211_RATE_SIZE; 2647173362Sbenjsc *frm++ = IEEE80211_ELEMID_XRATES; 2648173362Sbenjsc *frm++ = nrates; 2649173362Sbenjsc memcpy(frm, rs->rs_rates + IEEE80211_RATE_SIZE, nrates); 2650173362Sbenjsc frm += nrates; 2651173362Sbenjsc } 2652173362Sbenjsc 2653173362Sbenjsc /* setup length of probe request */ 2654173362Sbenjsc hdr->tx.len = htole16(frm - (uint8_t *)wh); 2655173362Sbenjsc 2656173362Sbenjsc /* 2657173362Sbenjsc * Construct information about the channel that we 2658173362Sbenjsc * want to scan. The firmware expects this to be directly 2659173362Sbenjsc * after the scan probe request 2660173362Sbenjsc */ 2661173362Sbenjsc c = ic->ic_curchan; 2662173362Sbenjsc chan = (struct wpi_scan_chan *)frm; 2663173362Sbenjsc chan->chan = ieee80211_chan2ieee(ic, c); 2664173362Sbenjsc chan->flags = 0; 2665173362Sbenjsc if (!(c->ic_flags & IEEE80211_CHAN_PASSIVE)) { 2666173362Sbenjsc chan->flags |= WPI_CHAN_ACTIVE; 2667178354Ssam if (nssid != 0) 2668173362Sbenjsc chan->flags |= WPI_CHAN_DIRECT; 2669173362Sbenjsc } 2670173362Sbenjsc chan->gain_dsp = 0x6e; /* Default level */ 2671173362Sbenjsc if (IEEE80211_IS_CHAN_5GHZ(c)) { 2672173362Sbenjsc chan->active = htole16(10); 2673178354Ssam chan->passive = htole16(ss->ss_maxdwell); 2674173362Sbenjsc chan->gain_radio = 0x3b; 2675173362Sbenjsc } else { 2676173362Sbenjsc chan->active = htole16(20); 2677178354Ssam chan->passive = htole16(ss->ss_maxdwell); 2678173362Sbenjsc chan->gain_radio = 0x28; 2679173362Sbenjsc } 2680173362Sbenjsc 2681173362Sbenjsc DPRINTFN(WPI_DEBUG_SCANNING, 2682173362Sbenjsc ("Scanning %u Passive: %d\n", 2683173362Sbenjsc chan->chan, 2684173362Sbenjsc c->ic_flags & IEEE80211_CHAN_PASSIVE)); 2685173362Sbenjsc 2686173362Sbenjsc hdr->nchan++; 2687173362Sbenjsc chan++; 2688173362Sbenjsc 2689173362Sbenjsc frm += sizeof (struct wpi_scan_chan); 2690173362Sbenjsc#if 0 2691173362Sbenjsc // XXX All Channels.... 2692173362Sbenjsc for (c = &ic->ic_channels[1]; 2693173362Sbenjsc c <= &ic->ic_channels[IEEE80211_CHAN_MAX]; c++) { 2694173362Sbenjsc if ((c->ic_flags & ic->ic_curchan->ic_flags) != ic->ic_curchan->ic_flags) 2695173362Sbenjsc continue; 2696173362Sbenjsc 2697173362Sbenjsc chan->chan = ieee80211_chan2ieee(ic, c); 2698173362Sbenjsc chan->flags = 0; 2699173362Sbenjsc if (!(c->ic_flags & IEEE80211_CHAN_PASSIVE)) { 2700173362Sbenjsc chan->flags |= WPI_CHAN_ACTIVE; 2701173362Sbenjsc if (ic->ic_des_ssid[0].len != 0) 2702173362Sbenjsc chan->flags |= WPI_CHAN_DIRECT; 2703173362Sbenjsc } 2704173362Sbenjsc chan->gain_dsp = 0x6e; /* Default level */ 2705173362Sbenjsc if (IEEE80211_IS_CHAN_5GHZ(c)) { 2706173362Sbenjsc chan->active = htole16(10); 2707173362Sbenjsc chan->passive = htole16(110); 2708173362Sbenjsc chan->gain_radio = 0x3b; 2709173362Sbenjsc } else { 2710173362Sbenjsc chan->active = htole16(20); 2711173362Sbenjsc chan->passive = htole16(120); 2712173362Sbenjsc chan->gain_radio = 0x28; 2713173362Sbenjsc } 2714173362Sbenjsc 2715173362Sbenjsc DPRINTFN(WPI_DEBUG_SCANNING, 2716173362Sbenjsc ("Scanning %u Passive: %d\n", 2717173362Sbenjsc chan->chan, 2718173362Sbenjsc c->ic_flags & IEEE80211_CHAN_PASSIVE)); 2719173362Sbenjsc 2720173362Sbenjsc hdr->nchan++; 2721173362Sbenjsc chan++; 2722173362Sbenjsc 2723173362Sbenjsc frm += sizeof (struct wpi_scan_chan); 2724173362Sbenjsc } 2725173362Sbenjsc#endif 2726173362Sbenjsc 2727173362Sbenjsc hdr->len = htole16(frm - (uint8_t *)hdr); 2728173362Sbenjsc pktlen = frm - (uint8_t *)cmd; 2729173362Sbenjsc 2730173362Sbenjsc error = bus_dmamap_load(ring->data_dmat, data->map, cmd, pktlen, 2731173362Sbenjsc wpi_dma_map_addr, &physaddr, BUS_DMA_NOWAIT); 2732173362Sbenjsc if (error != 0) { 2733173362Sbenjsc device_printf(sc->sc_dev, "could not map scan command\n"); 2734173362Sbenjsc m_freem(data->m); 2735173362Sbenjsc data->m = NULL; 2736173362Sbenjsc return error; 2737173362Sbenjsc } 2738173362Sbenjsc 2739173362Sbenjsc desc->flags = htole32(WPI_PAD32(pktlen) << 28 | 1 << 24); 2740173362Sbenjsc desc->segs[0].addr = htole32(physaddr); 2741173362Sbenjsc desc->segs[0].len = htole32(pktlen); 2742173362Sbenjsc 2743173362Sbenjsc bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 2744173362Sbenjsc BUS_DMASYNC_PREWRITE); 2745173362Sbenjsc bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE); 2746173362Sbenjsc 2747173362Sbenjsc /* kick cmd ring */ 2748173362Sbenjsc ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT; 2749173362Sbenjsc WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur); 2750173362Sbenjsc 2751177043Sthompsa sc->sc_scan_timer = 5; 2752173362Sbenjsc return 0; /* will be notified async. of failure/success */ 2753173362Sbenjsc} 2754173362Sbenjsc 2755173362Sbenjsc/** 2756173362Sbenjsc * Configure the card to listen to a particular channel, this transisions the 2757173362Sbenjsc * card in to being able to receive frames from remote devices. 2758173362Sbenjsc */ 2759173362Sbenjscstatic int 2760173362Sbenjscwpi_config(struct wpi_softc *sc) 2761173362Sbenjsc{ 2762178354Ssam struct ifnet *ifp = sc->sc_ifp; 2763178354Ssam struct ieee80211com *ic = ifp->if_l2com; 2764173362Sbenjsc struct wpi_power power; 2765173362Sbenjsc struct wpi_bluetooth bluetooth; 2766173362Sbenjsc struct wpi_node_info node; 2767173362Sbenjsc int error; 2768173362Sbenjsc 2769173362Sbenjsc /* set power mode */ 2770173362Sbenjsc memset(&power, 0, sizeof power); 2771173362Sbenjsc power.flags = htole32(WPI_POWER_CAM|0x8); 2772173362Sbenjsc error = wpi_cmd(sc, WPI_CMD_SET_POWER_MODE, &power, sizeof power, 0); 2773173362Sbenjsc if (error != 0) { 2774173362Sbenjsc device_printf(sc->sc_dev, "could not set power mode\n"); 2775173362Sbenjsc return error; 2776173362Sbenjsc } 2777173362Sbenjsc 2778173362Sbenjsc /* configure bluetooth coexistence */ 2779173362Sbenjsc memset(&bluetooth, 0, sizeof bluetooth); 2780173362Sbenjsc bluetooth.flags = 3; 2781173362Sbenjsc bluetooth.lead = 0xaa; 2782173362Sbenjsc bluetooth.kill = 1; 2783173362Sbenjsc error = wpi_cmd(sc, WPI_CMD_BLUETOOTH, &bluetooth, sizeof bluetooth, 2784173362Sbenjsc 0); 2785173362Sbenjsc if (error != 0) { 2786173362Sbenjsc device_printf(sc->sc_dev, 2787173362Sbenjsc "could not configure bluetooth coexistence\n"); 2788173362Sbenjsc return error; 2789173362Sbenjsc } 2790173362Sbenjsc 2791173362Sbenjsc /* configure adapter */ 2792173362Sbenjsc memset(&sc->config, 0, sizeof (struct wpi_config)); 2793190526Ssam IEEE80211_ADDR_COPY(sc->config.myaddr, IF_LLADDR(ifp)); 2794173362Sbenjsc /*set default channel*/ 2795173362Sbenjsc sc->config.chan = htole16(ieee80211_chan2ieee(ic, ic->ic_curchan)); 2796173362Sbenjsc sc->config.flags = htole32(WPI_CONFIG_TSF); 2797173362Sbenjsc if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2798173362Sbenjsc sc->config.flags |= htole32(WPI_CONFIG_AUTO | 2799173362Sbenjsc WPI_CONFIG_24GHZ); 2800173362Sbenjsc } 2801173362Sbenjsc sc->config.filter = 0; 2802173362Sbenjsc switch (ic->ic_opmode) { 2803173362Sbenjsc case IEEE80211_M_STA: 2804173362Sbenjsc case IEEE80211_M_WDS: /* No know setup, use STA for now */ 2805173362Sbenjsc sc->config.mode = WPI_MODE_STA; 2806173362Sbenjsc sc->config.filter |= htole32(WPI_FILTER_MULTICAST); 2807173362Sbenjsc break; 2808173362Sbenjsc case IEEE80211_M_IBSS: 2809173362Sbenjsc case IEEE80211_M_AHDEMO: 2810173362Sbenjsc sc->config.mode = WPI_MODE_IBSS; 2811173362Sbenjsc sc->config.filter |= htole32(WPI_FILTER_BEACON | 2812173362Sbenjsc WPI_FILTER_MULTICAST); 2813173362Sbenjsc break; 2814173362Sbenjsc case IEEE80211_M_HOSTAP: 2815173362Sbenjsc sc->config.mode = WPI_MODE_HOSTAP; 2816173362Sbenjsc break; 2817173362Sbenjsc case IEEE80211_M_MONITOR: 2818173362Sbenjsc sc->config.mode = WPI_MODE_MONITOR; 2819173362Sbenjsc sc->config.filter |= htole32(WPI_FILTER_MULTICAST | 2820173362Sbenjsc WPI_FILTER_CTL | WPI_FILTER_PROMISC); 2821173362Sbenjsc break; 2822195562Srpaulo default: 2823195562Srpaulo device_printf(sc->sc_dev, "unknown opmode %d\n", ic->ic_opmode); 2824195562Srpaulo return EINVAL; 2825173362Sbenjsc } 2826173362Sbenjsc sc->config.cck_mask = 0x0f; /* not yet negotiated */ 2827173362Sbenjsc sc->config.ofdm_mask = 0xff; /* not yet negotiated */ 2828173362Sbenjsc error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config, 2829173362Sbenjsc sizeof (struct wpi_config), 0); 2830173362Sbenjsc if (error != 0) { 2831173362Sbenjsc device_printf(sc->sc_dev, "configure command failed\n"); 2832173362Sbenjsc return error; 2833173362Sbenjsc } 2834173362Sbenjsc 2835173362Sbenjsc /* configuration has changed, set Tx power accordingly */ 2836177043Sthompsa if ((error = wpi_set_txpower(sc, ic->ic_curchan, 0)) != 0) { 2837173362Sbenjsc device_printf(sc->sc_dev, "could not set Tx power\n"); 2838173362Sbenjsc return error; 2839173362Sbenjsc } 2840173362Sbenjsc 2841173362Sbenjsc /* add broadcast node */ 2842173362Sbenjsc memset(&node, 0, sizeof node); 2843173362Sbenjsc IEEE80211_ADDR_COPY(node.bssid, ifp->if_broadcastaddr); 2844173362Sbenjsc node.id = WPI_ID_BROADCAST; 2845173362Sbenjsc node.rate = wpi_plcp_signal(2); 2846173362Sbenjsc error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 0); 2847173362Sbenjsc if (error != 0) { 2848173362Sbenjsc device_printf(sc->sc_dev, "could not add broadcast node\n"); 2849173362Sbenjsc return error; 2850173362Sbenjsc } 2851173362Sbenjsc 2852173362Sbenjsc /* Setup rate scalling */ 2853173362Sbenjsc error = wpi_mrr_setup(sc); 2854173362Sbenjsc if (error != 0) { 2855173362Sbenjsc device_printf(sc->sc_dev, "could not setup MRR\n"); 2856173362Sbenjsc return error; 2857173362Sbenjsc } 2858173362Sbenjsc 2859173362Sbenjsc return 0; 2860173362Sbenjsc} 2861173362Sbenjsc 2862173362Sbenjscstatic void 2863173362Sbenjscwpi_stop_master(struct wpi_softc *sc) 2864173362Sbenjsc{ 2865173362Sbenjsc uint32_t tmp; 2866173362Sbenjsc int ntries; 2867173362Sbenjsc 2868173362Sbenjsc DPRINTFN(WPI_DEBUG_HW,("Disabling Firmware execution\n")); 2869173362Sbenjsc 2870173362Sbenjsc tmp = WPI_READ(sc, WPI_RESET); 2871173362Sbenjsc WPI_WRITE(sc, WPI_RESET, tmp | WPI_STOP_MASTER | WPI_NEVO_RESET); 2872173362Sbenjsc 2873173362Sbenjsc tmp = WPI_READ(sc, WPI_GPIO_CTL); 2874173362Sbenjsc if ((tmp & WPI_GPIO_PWR_STATUS) == WPI_GPIO_PWR_SLEEP) 2875173362Sbenjsc return; /* already asleep */ 2876173362Sbenjsc 2877173362Sbenjsc for (ntries = 0; ntries < 100; ntries++) { 2878173362Sbenjsc if (WPI_READ(sc, WPI_RESET) & WPI_MASTER_DISABLED) 2879173362Sbenjsc break; 2880173362Sbenjsc DELAY(10); 2881173362Sbenjsc } 2882173362Sbenjsc if (ntries == 100) { 2883173362Sbenjsc device_printf(sc->sc_dev, "timeout waiting for master\n"); 2884173362Sbenjsc } 2885173362Sbenjsc} 2886173362Sbenjsc 2887173362Sbenjscstatic int 2888173362Sbenjscwpi_power_up(struct wpi_softc *sc) 2889173362Sbenjsc{ 2890173362Sbenjsc uint32_t tmp; 2891173362Sbenjsc int ntries; 2892173362Sbenjsc 2893173362Sbenjsc wpi_mem_lock(sc); 2894173362Sbenjsc tmp = wpi_mem_read(sc, WPI_MEM_POWER); 2895173362Sbenjsc wpi_mem_write(sc, WPI_MEM_POWER, tmp & ~0x03000000); 2896173362Sbenjsc wpi_mem_unlock(sc); 2897173362Sbenjsc 2898173362Sbenjsc for (ntries = 0; ntries < 5000; ntries++) { 2899173362Sbenjsc if (WPI_READ(sc, WPI_GPIO_STATUS) & WPI_POWERED) 2900173362Sbenjsc break; 2901173362Sbenjsc DELAY(10); 2902173362Sbenjsc } 2903173362Sbenjsc if (ntries == 5000) { 2904173362Sbenjsc device_printf(sc->sc_dev, 2905173362Sbenjsc "timeout waiting for NIC to power up\n"); 2906173362Sbenjsc return ETIMEDOUT; 2907173362Sbenjsc } 2908173362Sbenjsc return 0; 2909173362Sbenjsc} 2910173362Sbenjsc 2911173362Sbenjscstatic int 2912173362Sbenjscwpi_reset(struct wpi_softc *sc) 2913173362Sbenjsc{ 2914173362Sbenjsc uint32_t tmp; 2915173362Sbenjsc int ntries; 2916173362Sbenjsc 2917173362Sbenjsc DPRINTFN(WPI_DEBUG_HW, 2918173362Sbenjsc ("Resetting the card - clearing any uploaded firmware\n")); 2919173362Sbenjsc 2920173362Sbenjsc /* clear any pending interrupts */ 2921173362Sbenjsc WPI_WRITE(sc, WPI_INTR, 0xffffffff); 2922173362Sbenjsc 2923173362Sbenjsc tmp = WPI_READ(sc, WPI_PLL_CTL); 2924173362Sbenjsc WPI_WRITE(sc, WPI_PLL_CTL, tmp | WPI_PLL_INIT); 2925173362Sbenjsc 2926173362Sbenjsc tmp = WPI_READ(sc, WPI_CHICKEN); 2927173362Sbenjsc WPI_WRITE(sc, WPI_CHICKEN, tmp | WPI_CHICKEN_RXNOLOS); 2928173362Sbenjsc 2929173362Sbenjsc tmp = WPI_READ(sc, WPI_GPIO_CTL); 2930173362Sbenjsc WPI_WRITE(sc, WPI_GPIO_CTL, tmp | WPI_GPIO_INIT); 2931173362Sbenjsc 2932173362Sbenjsc /* wait for clock stabilization */ 2933173362Sbenjsc for (ntries = 0; ntries < 25000; ntries++) { 2934173362Sbenjsc if (WPI_READ(sc, WPI_GPIO_CTL) & WPI_GPIO_CLOCK) 2935173362Sbenjsc break; 2936173362Sbenjsc DELAY(10); 2937173362Sbenjsc } 2938173362Sbenjsc if (ntries == 25000) { 2939173362Sbenjsc device_printf(sc->sc_dev, 2940173362Sbenjsc "timeout waiting for clock stabilization\n"); 2941173362Sbenjsc return ETIMEDOUT; 2942173362Sbenjsc } 2943173362Sbenjsc 2944173362Sbenjsc /* initialize EEPROM */ 2945173362Sbenjsc tmp = WPI_READ(sc, WPI_EEPROM_STATUS); 2946173362Sbenjsc 2947173362Sbenjsc if ((tmp & WPI_EEPROM_VERSION) == 0) { 2948173362Sbenjsc device_printf(sc->sc_dev, "EEPROM not found\n"); 2949173362Sbenjsc return EIO; 2950173362Sbenjsc } 2951173362Sbenjsc WPI_WRITE(sc, WPI_EEPROM_STATUS, tmp & ~WPI_EEPROM_LOCKED); 2952173362Sbenjsc 2953173362Sbenjsc return 0; 2954173362Sbenjsc} 2955173362Sbenjsc 2956173362Sbenjscstatic void 2957173362Sbenjscwpi_hw_config(struct wpi_softc *sc) 2958173362Sbenjsc{ 2959173362Sbenjsc uint32_t rev, hw; 2960173362Sbenjsc 2961173362Sbenjsc /* voodoo from the Linux "driver".. */ 2962173362Sbenjsc hw = WPI_READ(sc, WPI_HWCONFIG); 2963173362Sbenjsc 2964173362Sbenjsc rev = pci_read_config(sc->sc_dev, PCIR_REVID, 1); 2965173362Sbenjsc if ((rev & 0xc0) == 0x40) 2966173362Sbenjsc hw |= WPI_HW_ALM_MB; 2967173362Sbenjsc else if (!(rev & 0x80)) 2968173362Sbenjsc hw |= WPI_HW_ALM_MM; 2969173362Sbenjsc 2970173362Sbenjsc if (sc->cap == 0x80) 2971173362Sbenjsc hw |= WPI_HW_SKU_MRC; 2972173362Sbenjsc 2973173362Sbenjsc hw &= ~WPI_HW_REV_D; 2974173362Sbenjsc if ((le16toh(sc->rev) & 0xf0) == 0xd0) 2975173362Sbenjsc hw |= WPI_HW_REV_D; 2976173362Sbenjsc 2977173362Sbenjsc if (sc->type > 1) 2978173362Sbenjsc hw |= WPI_HW_TYPE_B; 2979173362Sbenjsc 2980173362Sbenjsc WPI_WRITE(sc, WPI_HWCONFIG, hw); 2981173362Sbenjsc} 2982173362Sbenjsc 2983173362Sbenjscstatic void 2984177043Sthompsawpi_rfkill_resume(struct wpi_softc *sc) 2985177043Sthompsa{ 2986177043Sthompsa struct ifnet *ifp = sc->sc_ifp; 2987178354Ssam struct ieee80211com *ic = ifp->if_l2com; 2988178354Ssam struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2989177043Sthompsa int ntries; 2990177043Sthompsa 2991177043Sthompsa /* enable firmware again */ 2992177043Sthompsa WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF); 2993177043Sthompsa WPI_WRITE(sc, WPI_UCODE_CLR, WPI_DISABLE_CMD); 2994177043Sthompsa 2995177043Sthompsa /* wait for thermal sensors to calibrate */ 2996177043Sthompsa for (ntries = 0; ntries < 1000; ntries++) { 2997177043Sthompsa if ((sc->temp = (int)WPI_READ(sc, WPI_TEMPERATURE)) != 0) 2998177043Sthompsa break; 2999177043Sthompsa DELAY(10); 3000177043Sthompsa } 3001177043Sthompsa 3002177043Sthompsa if (ntries == 1000) { 3003177043Sthompsa device_printf(sc->sc_dev, 3004177043Sthompsa "timeout waiting for thermal calibration\n"); 3005177043Sthompsa WPI_UNLOCK(sc); 3006177043Sthompsa return; 3007177043Sthompsa } 3008177043Sthompsa DPRINTFN(WPI_DEBUG_TEMP,("temperature %d\n", sc->temp)); 3009177043Sthompsa 3010177043Sthompsa if (wpi_config(sc) != 0) { 3011177043Sthompsa device_printf(sc->sc_dev, "device config failed\n"); 3012177043Sthompsa WPI_UNLOCK(sc); 3013177043Sthompsa return; 3014177043Sthompsa } 3015177043Sthompsa 3016177043Sthompsa ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 3017177043Sthompsa ifp->if_drv_flags |= IFF_DRV_RUNNING; 3018177043Sthompsa sc->flags &= ~WPI_FLAG_HW_RADIO_OFF; 3019177043Sthompsa 3020178354Ssam if (vap != NULL) { 3021178354Ssam if ((ic->ic_flags & IEEE80211_F_SCAN) == 0) { 3022178354Ssam if (vap->iv_opmode != IEEE80211_M_MONITOR) { 3023191746Sthompsa ieee80211_beacon_miss(ic); 3024178354Ssam wpi_set_led(sc, WPI_LED_LINK, 0, 1); 3025178354Ssam } else 3026178354Ssam wpi_set_led(sc, WPI_LED_LINK, 5, 5); 3027178354Ssam } else { 3028178354Ssam ieee80211_scan_next(vap); 3029177043Sthompsa wpi_set_led(sc, WPI_LED_LINK, 20, 2); 3030178354Ssam } 3031177043Sthompsa } 3032177043Sthompsa 3033177043Sthompsa callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc); 3034177043Sthompsa} 3035177043Sthompsa 3036177043Sthompsastatic void 3037177043Sthompsawpi_init_locked(struct wpi_softc *sc, int force) 3038177043Sthompsa{ 3039178354Ssam struct ifnet *ifp = sc->sc_ifp; 3040173362Sbenjsc uint32_t tmp; 3041177043Sthompsa int ntries, qid; 3042173362Sbenjsc 3043173362Sbenjsc wpi_stop_locked(sc); 3044173362Sbenjsc (void)wpi_reset(sc); 3045173362Sbenjsc 3046173362Sbenjsc wpi_mem_lock(sc); 3047173362Sbenjsc wpi_mem_write(sc, WPI_MEM_CLOCK1, 0xa00); 3048173362Sbenjsc DELAY(20); 3049173362Sbenjsc tmp = wpi_mem_read(sc, WPI_MEM_PCIDEV); 3050173362Sbenjsc wpi_mem_write(sc, WPI_MEM_PCIDEV, tmp | 0x800); 3051173362Sbenjsc wpi_mem_unlock(sc); 3052173362Sbenjsc 3053173362Sbenjsc (void)wpi_power_up(sc); 3054173362Sbenjsc wpi_hw_config(sc); 3055173362Sbenjsc 3056173362Sbenjsc /* init Rx ring */ 3057173362Sbenjsc wpi_mem_lock(sc); 3058173362Sbenjsc WPI_WRITE(sc, WPI_RX_BASE, sc->rxq.desc_dma.paddr); 3059173362Sbenjsc WPI_WRITE(sc, WPI_RX_RIDX_PTR, sc->shared_dma.paddr + 3060173362Sbenjsc offsetof(struct wpi_shared, next)); 3061173362Sbenjsc WPI_WRITE(sc, WPI_RX_WIDX, (WPI_RX_RING_COUNT - 1) & ~7); 3062173362Sbenjsc WPI_WRITE(sc, WPI_RX_CONFIG, 0xa9601010); 3063173362Sbenjsc wpi_mem_unlock(sc); 3064173362Sbenjsc 3065173362Sbenjsc /* init Tx rings */ 3066173362Sbenjsc wpi_mem_lock(sc); 3067173362Sbenjsc wpi_mem_write(sc, WPI_MEM_MODE, 2); /* bypass mode */ 3068173362Sbenjsc wpi_mem_write(sc, WPI_MEM_RA, 1); /* enable RA0 */ 3069173362Sbenjsc wpi_mem_write(sc, WPI_MEM_TXCFG, 0x3f); /* enable all 6 Tx rings */ 3070173362Sbenjsc wpi_mem_write(sc, WPI_MEM_BYPASS1, 0x10000); 3071173362Sbenjsc wpi_mem_write(sc, WPI_MEM_BYPASS2, 0x30002); 3072173362Sbenjsc wpi_mem_write(sc, WPI_MEM_MAGIC4, 4); 3073173362Sbenjsc wpi_mem_write(sc, WPI_MEM_MAGIC5, 5); 3074173362Sbenjsc 3075173362Sbenjsc WPI_WRITE(sc, WPI_TX_BASE_PTR, sc->shared_dma.paddr); 3076173362Sbenjsc WPI_WRITE(sc, WPI_MSG_CONFIG, 0xffff05a5); 3077173362Sbenjsc 3078173362Sbenjsc for (qid = 0; qid < 6; qid++) { 3079173362Sbenjsc WPI_WRITE(sc, WPI_TX_CTL(qid), 0); 3080173362Sbenjsc WPI_WRITE(sc, WPI_TX_BASE(qid), 0); 3081173362Sbenjsc WPI_WRITE(sc, WPI_TX_CONFIG(qid), 0x80200008); 3082173362Sbenjsc } 3083173362Sbenjsc wpi_mem_unlock(sc); 3084173362Sbenjsc 3085173362Sbenjsc /* clear "radio off" and "disable command" bits (reversed logic) */ 3086173362Sbenjsc WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF); 3087173362Sbenjsc WPI_WRITE(sc, WPI_UCODE_CLR, WPI_DISABLE_CMD); 3088173362Sbenjsc sc->flags &= ~WPI_FLAG_HW_RADIO_OFF; 3089173362Sbenjsc 3090173362Sbenjsc /* clear any pending interrupts */ 3091173362Sbenjsc WPI_WRITE(sc, WPI_INTR, 0xffffffff); 3092173362Sbenjsc 3093173362Sbenjsc /* enable interrupts */ 3094173362Sbenjsc WPI_WRITE(sc, WPI_MASK, WPI_INTR_MASK); 3095173362Sbenjsc 3096173362Sbenjsc WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF); 3097173362Sbenjsc WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF); 3098173362Sbenjsc 3099177043Sthompsa if ((wpi_load_firmware(sc)) != 0) { 3100173362Sbenjsc device_printf(sc->sc_dev, 3101173362Sbenjsc "A problem occurred loading the firmware to the driver\n"); 3102173362Sbenjsc return; 3103173362Sbenjsc } 3104173362Sbenjsc 3105173362Sbenjsc /* At this point the firmware is up and running. If the hardware 3106173362Sbenjsc * RF switch is turned off thermal calibration will fail, though 3107173362Sbenjsc * the card is still happy to continue to accept commands, catch 3108177043Sthompsa * this case and schedule a task to watch for it to be turned on. 3109173362Sbenjsc */ 3110173362Sbenjsc wpi_mem_lock(sc); 3111173362Sbenjsc tmp = wpi_mem_read(sc, WPI_MEM_HW_RADIO_OFF); 3112173362Sbenjsc wpi_mem_unlock(sc); 3113173362Sbenjsc 3114173362Sbenjsc if (!(tmp & 0x1)) { 3115173362Sbenjsc sc->flags |= WPI_FLAG_HW_RADIO_OFF; 3116173362Sbenjsc device_printf(sc->sc_dev,"Radio Transmitter is switched off\n"); 3117177043Sthompsa goto out; 3118173362Sbenjsc } 3119173362Sbenjsc 3120173362Sbenjsc /* wait for thermal sensors to calibrate */ 3121173362Sbenjsc for (ntries = 0; ntries < 1000; ntries++) { 3122173362Sbenjsc if ((sc->temp = (int)WPI_READ(sc, WPI_TEMPERATURE)) != 0) 3123173362Sbenjsc break; 3124173362Sbenjsc DELAY(10); 3125173362Sbenjsc } 3126173362Sbenjsc 3127173362Sbenjsc if (ntries == 1000) { 3128173362Sbenjsc device_printf(sc->sc_dev, 3129173362Sbenjsc "timeout waiting for thermal sensors calibration\n"); 3130173362Sbenjsc return; 3131173362Sbenjsc } 3132173362Sbenjsc DPRINTFN(WPI_DEBUG_TEMP,("temperature %d\n", sc->temp)); 3133173362Sbenjsc 3134177043Sthompsa if (wpi_config(sc) != 0) { 3135177043Sthompsa device_printf(sc->sc_dev, "device config failed\n"); 3136177043Sthompsa return; 3137177043Sthompsa } 3138177043Sthompsa 3139173362Sbenjsc ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 3140173362Sbenjsc ifp->if_drv_flags |= IFF_DRV_RUNNING; 3141177043Sthompsaout: 3142177043Sthompsa callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc); 3143173362Sbenjsc} 3144173362Sbenjsc 3145173362Sbenjscstatic void 3146178354Ssamwpi_init(void *arg) 3147173362Sbenjsc{ 3148178354Ssam struct wpi_softc *sc = arg; 3149178354Ssam struct ifnet *ifp = sc->sc_ifp; 3150178354Ssam struct ieee80211com *ic = ifp->if_l2com; 3151173362Sbenjsc 3152173362Sbenjsc WPI_LOCK(sc); 3153178354Ssam wpi_init_locked(sc, 0); 3154173362Sbenjsc WPI_UNLOCK(sc); 3155173362Sbenjsc 3156178354Ssam if (ifp->if_drv_flags & IFF_DRV_RUNNING) 3157178354Ssam ieee80211_start_all(ic); /* start all vaps */ 3158173362Sbenjsc} 3159178354Ssam 3160173362Sbenjscstatic void 3161173362Sbenjscwpi_stop_locked(struct wpi_softc *sc) 3162173362Sbenjsc{ 3163178354Ssam struct ifnet *ifp = sc->sc_ifp; 3164173362Sbenjsc uint32_t tmp; 3165173362Sbenjsc int ac; 3166173362Sbenjsc 3167177043Sthompsa sc->sc_tx_timer = 0; 3168177043Sthompsa sc->sc_scan_timer = 0; 3169173362Sbenjsc ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 3170177043Sthompsa sc->flags &= ~WPI_FLAG_HW_RADIO_OFF; 3171177043Sthompsa callout_stop(&sc->watchdog_to); 3172177043Sthompsa callout_stop(&sc->calib_to); 3173173362Sbenjsc 3174177043Sthompsa 3175173362Sbenjsc /* disable interrupts */ 3176173362Sbenjsc WPI_WRITE(sc, WPI_MASK, 0); 3177173362Sbenjsc WPI_WRITE(sc, WPI_INTR, WPI_INTR_MASK); 3178173362Sbenjsc WPI_WRITE(sc, WPI_INTR_STATUS, 0xff); 3179173362Sbenjsc WPI_WRITE(sc, WPI_INTR_STATUS, 0x00070000); 3180173362Sbenjsc 3181173362Sbenjsc wpi_mem_lock(sc); 3182173362Sbenjsc wpi_mem_write(sc, WPI_MEM_MODE, 0); 3183173362Sbenjsc wpi_mem_unlock(sc); 3184173362Sbenjsc 3185173362Sbenjsc /* reset all Tx rings */ 3186173362Sbenjsc for (ac = 0; ac < 4; ac++) 3187173362Sbenjsc wpi_reset_tx_ring(sc, &sc->txq[ac]); 3188173362Sbenjsc wpi_reset_tx_ring(sc, &sc->cmdq); 3189173362Sbenjsc 3190173362Sbenjsc /* reset Rx ring */ 3191173362Sbenjsc wpi_reset_rx_ring(sc, &sc->rxq); 3192173362Sbenjsc 3193173362Sbenjsc wpi_mem_lock(sc); 3194173362Sbenjsc wpi_mem_write(sc, WPI_MEM_CLOCK2, 0x200); 3195173362Sbenjsc wpi_mem_unlock(sc); 3196173362Sbenjsc 3197173362Sbenjsc DELAY(5); 3198173362Sbenjsc 3199173362Sbenjsc wpi_stop_master(sc); 3200173362Sbenjsc 3201173362Sbenjsc tmp = WPI_READ(sc, WPI_RESET); 3202173362Sbenjsc WPI_WRITE(sc, WPI_RESET, tmp | WPI_SW_RESET); 3203173362Sbenjsc sc->flags &= ~WPI_FLAG_BUSY; 3204173362Sbenjsc} 3205173362Sbenjsc 3206173362Sbenjscstatic void 3207178354Ssamwpi_stop(struct wpi_softc *sc) 3208173362Sbenjsc{ 3209178354Ssam WPI_LOCK(sc); 3210178354Ssam wpi_stop_locked(sc); 3211178354Ssam WPI_UNLOCK(sc); 3212173362Sbenjsc} 3213173362Sbenjsc 3214173362Sbenjscstatic void 3215173362Sbenjscwpi_newassoc(struct ieee80211_node *ni, int isnew) 3216173362Sbenjsc{ 3217178354Ssam struct ieee80211vap *vap = ni->ni_vap; 3218178354Ssam struct wpi_vap *wvp = WPI_VAP(vap); 3219173362Sbenjsc 3220178354Ssam ieee80211_amrr_node_init(&wvp->amrr, &WPI_NODE(ni)->amn, ni); 3221173362Sbenjsc} 3222173362Sbenjsc 3223173362Sbenjscstatic void 3224173362Sbenjscwpi_calib_timeout(void *arg) 3225173362Sbenjsc{ 3226173362Sbenjsc struct wpi_softc *sc = arg; 3227178354Ssam struct ifnet *ifp = sc->sc_ifp; 3228178354Ssam struct ieee80211com *ic = ifp->if_l2com; 3229178354Ssam struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 3230173362Sbenjsc int temp; 3231173362Sbenjsc 3232178354Ssam if (vap->iv_state != IEEE80211_S_RUN) 3233177043Sthompsa return; 3234177043Sthompsa 3235173362Sbenjsc /* update sensor data */ 3236173362Sbenjsc temp = (int)WPI_READ(sc, WPI_TEMPERATURE); 3237173362Sbenjsc DPRINTFN(WPI_DEBUG_TEMP,("Temp in calibration is: %d\n", temp)); 3238173362Sbenjsc 3239178354Ssam wpi_power_calibration(sc, temp); 3240173362Sbenjsc 3241178354Ssam callout_reset(&sc->calib_to, 60*hz, wpi_calib_timeout, sc); 3242173362Sbenjsc} 3243173362Sbenjsc 3244173362Sbenjsc/* 3245173362Sbenjsc * This function is called periodically (every 60 seconds) to adjust output 3246173362Sbenjsc * power to temperature changes. 3247173362Sbenjsc */ 3248173362Sbenjscstatic void 3249173362Sbenjscwpi_power_calibration(struct wpi_softc *sc, int temp) 3250173362Sbenjsc{ 3251178354Ssam struct ifnet *ifp = sc->sc_ifp; 3252178354Ssam struct ieee80211com *ic = ifp->if_l2com; 3253178354Ssam struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 3254178354Ssam 3255173362Sbenjsc /* sanity-check read value */ 3256173362Sbenjsc if (temp < -260 || temp > 25) { 3257173362Sbenjsc /* this can't be correct, ignore */ 3258173362Sbenjsc DPRINTFN(WPI_DEBUG_TEMP, 3259173362Sbenjsc ("out-of-range temperature reported: %d\n", temp)); 3260173362Sbenjsc return; 3261173362Sbenjsc } 3262173362Sbenjsc 3263173362Sbenjsc DPRINTFN(WPI_DEBUG_TEMP,("temperature %d->%d\n", sc->temp, temp)); 3264173362Sbenjsc 3265173362Sbenjsc /* adjust Tx power if need be */ 3266173362Sbenjsc if (abs(temp - sc->temp) <= 6) 3267173362Sbenjsc return; 3268173362Sbenjsc 3269173362Sbenjsc sc->temp = temp; 3270173362Sbenjsc 3271178354Ssam if (wpi_set_txpower(sc, vap->iv_bss->ni_chan, 1) != 0) { 3272173362Sbenjsc /* just warn, too bad for the automatic calibration... */ 3273173362Sbenjsc device_printf(sc->sc_dev,"could not adjust Tx power\n"); 3274173362Sbenjsc } 3275173362Sbenjsc} 3276173362Sbenjsc 3277173362Sbenjsc/** 3278173362Sbenjsc * Read the eeprom to find out what channels are valid for the given 3279173362Sbenjsc * band and update net80211 with what we find. 3280173362Sbenjsc */ 3281173362Sbenjscstatic void 3282173362Sbenjscwpi_read_eeprom_channels(struct wpi_softc *sc, int n) 3283173362Sbenjsc{ 3284178354Ssam struct ifnet *ifp = sc->sc_ifp; 3285178354Ssam struct ieee80211com *ic = ifp->if_l2com; 3286173362Sbenjsc const struct wpi_chan_band *band = &wpi_bands[n]; 3287173362Sbenjsc struct wpi_eeprom_chan channels[WPI_MAX_CHAN_PER_BAND]; 3288179957Sthompsa struct ieee80211_channel *c; 3289179957Sthompsa int chan, i, passive; 3290173362Sbenjsc 3291173362Sbenjsc wpi_read_prom_data(sc, band->addr, channels, 3292173362Sbenjsc band->nchan * sizeof (struct wpi_eeprom_chan)); 3293173362Sbenjsc 3294173362Sbenjsc for (i = 0; i < band->nchan; i++) { 3295173362Sbenjsc if (!(channels[i].flags & WPI_EEPROM_CHAN_VALID)) { 3296173362Sbenjsc DPRINTFN(WPI_DEBUG_HW, 3297173362Sbenjsc ("Channel Not Valid: %d, band %d\n", 3298173362Sbenjsc band->chan[i],n)); 3299173362Sbenjsc continue; 3300173362Sbenjsc } 3301173362Sbenjsc 3302173362Sbenjsc passive = 0; 3303173362Sbenjsc chan = band->chan[i]; 3304179957Sthompsa c = &ic->ic_channels[ic->ic_nchans++]; 3305173362Sbenjsc 3306173362Sbenjsc /* is active scan allowed on this channel? */ 3307173362Sbenjsc if (!(channels[i].flags & WPI_EEPROM_CHAN_ACTIVE)) { 3308173362Sbenjsc passive = IEEE80211_CHAN_PASSIVE; 3309173362Sbenjsc } 3310173362Sbenjsc 3311173362Sbenjsc if (n == 0) { /* 2GHz band */ 3312179957Sthompsa c->ic_ieee = chan; 3313179957Sthompsa c->ic_freq = ieee80211_ieee2mhz(chan, 3314179957Sthompsa IEEE80211_CHAN_2GHZ); 3315179957Sthompsa c->ic_flags = IEEE80211_CHAN_B | passive; 3316173362Sbenjsc 3317179957Sthompsa c = &ic->ic_channels[ic->ic_nchans++]; 3318179957Sthompsa c->ic_ieee = chan; 3319179957Sthompsa c->ic_freq = ieee80211_ieee2mhz(chan, 3320179957Sthompsa IEEE80211_CHAN_2GHZ); 3321179957Sthompsa c->ic_flags = IEEE80211_CHAN_G | passive; 3322179957Sthompsa 3323173362Sbenjsc } else { /* 5GHz band */ 3324173362Sbenjsc /* 3325173362Sbenjsc * Some 3945ABG adapters support channels 7, 8, 11 3326173362Sbenjsc * and 12 in the 2GHz *and* 5GHz bands. 3327173362Sbenjsc * Because of limitations in our net80211(9) stack, 3328173362Sbenjsc * we can't support these channels in 5GHz band. 3329173362Sbenjsc * XXX not true; just need to map to proper frequency 3330173362Sbenjsc */ 3331173362Sbenjsc if (chan <= 14) 3332173362Sbenjsc continue; 3333173362Sbenjsc 3334179957Sthompsa c->ic_ieee = chan; 3335179957Sthompsa c->ic_freq = ieee80211_ieee2mhz(chan, 3336179957Sthompsa IEEE80211_CHAN_5GHZ); 3337179957Sthompsa c->ic_flags = IEEE80211_CHAN_A | passive; 3338173362Sbenjsc } 3339173362Sbenjsc 3340173362Sbenjsc /* save maximum allowed power for this channel */ 3341173362Sbenjsc sc->maxpwr[chan] = channels[i].maxpwr; 3342173362Sbenjsc 3343173362Sbenjsc#if 0 3344173362Sbenjsc // XXX We can probably use this an get rid of maxpwr - ben 20070617 3345173362Sbenjsc ic->ic_channels[chan].ic_maxpower = channels[i].maxpwr; 3346173362Sbenjsc //ic->ic_channels[chan].ic_minpower... 3347173362Sbenjsc //ic->ic_channels[chan].ic_maxregtxpower... 3348173362Sbenjsc#endif 3349173362Sbenjsc 3350179957Sthompsa DPRINTF(("adding chan %d (%dMHz) flags=0x%x maxpwr=%d" 3351179957Sthompsa " passive=%d, offset %d\n", chan, c->ic_freq, 3352179957Sthompsa channels[i].flags, sc->maxpwr[chan], 3353179957Sthompsa (c->ic_flags & IEEE80211_CHAN_PASSIVE) != 0, 3354179957Sthompsa ic->ic_nchans)); 3355173362Sbenjsc } 3356173362Sbenjsc} 3357173362Sbenjsc 3358173362Sbenjscstatic void 3359173362Sbenjscwpi_read_eeprom_group(struct wpi_softc *sc, int n) 3360173362Sbenjsc{ 3361173362Sbenjsc struct wpi_power_group *group = &sc->groups[n]; 3362173362Sbenjsc struct wpi_eeprom_group rgroup; 3363173362Sbenjsc int i; 3364173362Sbenjsc 3365173362Sbenjsc wpi_read_prom_data(sc, WPI_EEPROM_POWER_GRP + n * 32, &rgroup, 3366173362Sbenjsc sizeof rgroup); 3367173362Sbenjsc 3368173362Sbenjsc /* save power group information */ 3369173362Sbenjsc group->chan = rgroup.chan; 3370173362Sbenjsc group->maxpwr = rgroup.maxpwr; 3371173362Sbenjsc /* temperature at which the samples were taken */ 3372173362Sbenjsc group->temp = (int16_t)le16toh(rgroup.temp); 3373173362Sbenjsc 3374173362Sbenjsc DPRINTF(("power group %d: chan=%d maxpwr=%d temp=%d\n", n, 3375173362Sbenjsc group->chan, group->maxpwr, group->temp)); 3376173362Sbenjsc 3377173362Sbenjsc for (i = 0; i < WPI_SAMPLES_COUNT; i++) { 3378173362Sbenjsc group->samples[i].index = rgroup.samples[i].index; 3379173362Sbenjsc group->samples[i].power = rgroup.samples[i].power; 3380173362Sbenjsc 3381173362Sbenjsc DPRINTF(("\tsample %d: index=%d power=%d\n", i, 3382173362Sbenjsc group->samples[i].index, group->samples[i].power)); 3383173362Sbenjsc } 3384173362Sbenjsc} 3385173362Sbenjsc 3386173362Sbenjsc/* 3387173362Sbenjsc * Update Tx power to match what is defined for channel `c'. 3388173362Sbenjsc */ 3389173362Sbenjscstatic int 3390173362Sbenjscwpi_set_txpower(struct wpi_softc *sc, struct ieee80211_channel *c, int async) 3391173362Sbenjsc{ 3392178354Ssam struct ifnet *ifp = sc->sc_ifp; 3393178354Ssam struct ieee80211com *ic = ifp->if_l2com; 3394173362Sbenjsc struct wpi_power_group *group; 3395173362Sbenjsc struct wpi_cmd_txpower txpower; 3396173362Sbenjsc u_int chan; 3397173362Sbenjsc int i; 3398173362Sbenjsc 3399173362Sbenjsc /* get channel number */ 3400173362Sbenjsc chan = ieee80211_chan2ieee(ic, c); 3401173362Sbenjsc 3402173362Sbenjsc /* find the power group to which this channel belongs */ 3403173362Sbenjsc if (IEEE80211_IS_CHAN_5GHZ(c)) { 3404173362Sbenjsc for (group = &sc->groups[1]; group < &sc->groups[4]; group++) 3405173362Sbenjsc if (chan <= group->chan) 3406173362Sbenjsc break; 3407173362Sbenjsc } else 3408173362Sbenjsc group = &sc->groups[0]; 3409173362Sbenjsc 3410173362Sbenjsc memset(&txpower, 0, sizeof txpower); 3411173362Sbenjsc txpower.band = IEEE80211_IS_CHAN_5GHZ(c) ? 0 : 1; 3412173362Sbenjsc txpower.channel = htole16(chan); 3413173362Sbenjsc 3414173362Sbenjsc /* set Tx power for all OFDM and CCK rates */ 3415173362Sbenjsc for (i = 0; i <= 11 ; i++) { 3416173362Sbenjsc /* retrieve Tx power for this channel/rate combination */ 3417173362Sbenjsc int idx = wpi_get_power_index(sc, group, c, 3418173362Sbenjsc wpi_ridx_to_rate[i]); 3419173362Sbenjsc 3420173362Sbenjsc txpower.rates[i].rate = wpi_ridx_to_plcp[i]; 3421173362Sbenjsc 3422173362Sbenjsc if (IEEE80211_IS_CHAN_5GHZ(c)) { 3423173362Sbenjsc txpower.rates[i].gain_radio = wpi_rf_gain_5ghz[idx]; 3424173362Sbenjsc txpower.rates[i].gain_dsp = wpi_dsp_gain_5ghz[idx]; 3425173362Sbenjsc } else { 3426173362Sbenjsc txpower.rates[i].gain_radio = wpi_rf_gain_2ghz[idx]; 3427173362Sbenjsc txpower.rates[i].gain_dsp = wpi_dsp_gain_2ghz[idx]; 3428173362Sbenjsc } 3429173362Sbenjsc DPRINTFN(WPI_DEBUG_TEMP,("chan %d/rate %d: power index %d\n", 3430173362Sbenjsc chan, wpi_ridx_to_rate[i], idx)); 3431173362Sbenjsc } 3432173362Sbenjsc 3433173362Sbenjsc return wpi_cmd(sc, WPI_CMD_TXPOWER, &txpower, sizeof txpower, async); 3434173362Sbenjsc} 3435173362Sbenjsc 3436173362Sbenjsc/* 3437173362Sbenjsc * Determine Tx power index for a given channel/rate combination. 3438173362Sbenjsc * This takes into account the regulatory information from EEPROM and the 3439173362Sbenjsc * current temperature. 3440173362Sbenjsc */ 3441173362Sbenjscstatic int 3442173362Sbenjscwpi_get_power_index(struct wpi_softc *sc, struct wpi_power_group *group, 3443173362Sbenjsc struct ieee80211_channel *c, int rate) 3444173362Sbenjsc{ 3445173362Sbenjsc/* fixed-point arithmetic division using a n-bit fractional part */ 3446173362Sbenjsc#define fdivround(a, b, n) \ 3447173362Sbenjsc ((((1 << n) * (a)) / (b) + (1 << n) / 2) / (1 << n)) 3448173362Sbenjsc 3449173362Sbenjsc/* linear interpolation */ 3450173362Sbenjsc#define interpolate(x, x1, y1, x2, y2, n) \ 3451173362Sbenjsc ((y1) + fdivround(((x) - (x1)) * ((y2) - (y1)), (x2) - (x1), n)) 3452173362Sbenjsc 3453178354Ssam struct ifnet *ifp = sc->sc_ifp; 3454178354Ssam struct ieee80211com *ic = ifp->if_l2com; 3455173362Sbenjsc struct wpi_power_sample *sample; 3456173362Sbenjsc int pwr, idx; 3457173362Sbenjsc u_int chan; 3458173362Sbenjsc 3459173362Sbenjsc /* get channel number */ 3460173362Sbenjsc chan = ieee80211_chan2ieee(ic, c); 3461173362Sbenjsc 3462173362Sbenjsc /* default power is group's maximum power - 3dB */ 3463173362Sbenjsc pwr = group->maxpwr / 2; 3464173362Sbenjsc 3465173362Sbenjsc /* decrease power for highest OFDM rates to reduce distortion */ 3466173362Sbenjsc switch (rate) { 3467173362Sbenjsc case 72: /* 36Mb/s */ 3468173362Sbenjsc pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 0 : 5; 3469173362Sbenjsc break; 3470173362Sbenjsc case 96: /* 48Mb/s */ 3471173362Sbenjsc pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 7 : 10; 3472173362Sbenjsc break; 3473173362Sbenjsc case 108: /* 54Mb/s */ 3474173362Sbenjsc pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 9 : 12; 3475173362Sbenjsc break; 3476173362Sbenjsc } 3477173362Sbenjsc 3478173362Sbenjsc /* never exceed channel's maximum allowed Tx power */ 3479173362Sbenjsc pwr = min(pwr, sc->maxpwr[chan]); 3480173362Sbenjsc 3481173362Sbenjsc /* retrieve power index into gain tables from samples */ 3482173362Sbenjsc for (sample = group->samples; sample < &group->samples[3]; sample++) 3483173362Sbenjsc if (pwr > sample[1].power) 3484173362Sbenjsc break; 3485173362Sbenjsc /* fixed-point linear interpolation using a 19-bit fractional part */ 3486173362Sbenjsc idx = interpolate(pwr, sample[0].power, sample[0].index, 3487173362Sbenjsc sample[1].power, sample[1].index, 19); 3488173362Sbenjsc 3489173362Sbenjsc /* 3490173362Sbenjsc * Adjust power index based on current temperature 3491173362Sbenjsc * - if colder than factory-calibrated: decreate output power 3492173362Sbenjsc * - if warmer than factory-calibrated: increase output power 3493173362Sbenjsc */ 3494173362Sbenjsc idx -= (sc->temp - group->temp) * 11 / 100; 3495173362Sbenjsc 3496173362Sbenjsc /* decrease power for CCK rates (-5dB) */ 3497173362Sbenjsc if (!WPI_RATE_IS_OFDM(rate)) 3498173362Sbenjsc idx += 10; 3499173362Sbenjsc 3500173362Sbenjsc /* keep power index in a valid range */ 3501173362Sbenjsc if (idx < 0) 3502173362Sbenjsc return 0; 3503173362Sbenjsc if (idx > WPI_MAX_PWR_INDEX) 3504173362Sbenjsc return WPI_MAX_PWR_INDEX; 3505173362Sbenjsc return idx; 3506173362Sbenjsc 3507173362Sbenjsc#undef interpolate 3508173362Sbenjsc#undef fdivround 3509173362Sbenjsc} 3510173362Sbenjsc 3511173362Sbenjsc/** 3512173362Sbenjsc * Called by net80211 framework to indicate that a scan 3513173362Sbenjsc * is starting. This function doesn't actually do the scan, 3514173362Sbenjsc * wpi_scan_curchan starts things off. This function is more 3515173362Sbenjsc * of an early warning from the framework we should get ready 3516173362Sbenjsc * for the scan. 3517173362Sbenjsc */ 3518173362Sbenjscstatic void 3519173362Sbenjscwpi_scan_start(struct ieee80211com *ic) 3520173362Sbenjsc{ 3521173362Sbenjsc struct ifnet *ifp = ic->ic_ifp; 3522173362Sbenjsc struct wpi_softc *sc = ifp->if_softc; 3523173362Sbenjsc 3524191746Sthompsa WPI_LOCK(sc); 3525191746Sthompsa wpi_set_led(sc, WPI_LED_LINK, 20, 2); 3526191746Sthompsa WPI_UNLOCK(sc); 3527173362Sbenjsc} 3528173362Sbenjsc 3529173362Sbenjsc/** 3530173362Sbenjsc * Called by the net80211 framework, indicates that the 3531173362Sbenjsc * scan has ended. If there is a scan in progress on the card 3532173362Sbenjsc * then it should be aborted. 3533173362Sbenjsc */ 3534173362Sbenjscstatic void 3535173362Sbenjscwpi_scan_end(struct ieee80211com *ic) 3536173362Sbenjsc{ 3537191746Sthompsa /* XXX ignore */ 3538173362Sbenjsc} 3539173362Sbenjsc 3540173362Sbenjsc/** 3541173362Sbenjsc * Called by the net80211 framework to indicate to the driver 3542173362Sbenjsc * that the channel should be changed 3543173362Sbenjsc */ 3544173362Sbenjscstatic void 3545173362Sbenjscwpi_set_channel(struct ieee80211com *ic) 3546173362Sbenjsc{ 3547173362Sbenjsc struct ifnet *ifp = ic->ic_ifp; 3548173362Sbenjsc struct wpi_softc *sc = ifp->if_softc; 3549191746Sthompsa int error; 3550173362Sbenjsc 3551177043Sthompsa /* 3552177043Sthompsa * Only need to set the channel in Monitor mode. AP scanning and auth 3553177043Sthompsa * are already taken care of by their respective firmware commands. 3554177043Sthompsa */ 3555191746Sthompsa if (ic->ic_opmode == IEEE80211_M_MONITOR) { 3556191746Sthompsa error = wpi_config(sc); 3557191746Sthompsa if (error != 0) 3558191746Sthompsa device_printf(sc->sc_dev, 3559191746Sthompsa "error %d settting channel\n", error); 3560191746Sthompsa } 3561173362Sbenjsc} 3562173362Sbenjsc 3563173362Sbenjsc/** 3564173362Sbenjsc * Called by net80211 to indicate that we need to scan the current 3565173362Sbenjsc * channel. The channel is previously be set via the wpi_set_channel 3566173362Sbenjsc * callback. 3567173362Sbenjsc */ 3568173362Sbenjscstatic void 3569178354Ssamwpi_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell) 3570173362Sbenjsc{ 3571178354Ssam struct ieee80211vap *vap = ss->ss_vap; 3572178354Ssam struct ifnet *ifp = vap->iv_ic->ic_ifp; 3573173362Sbenjsc struct wpi_softc *sc = ifp->if_softc; 3574173362Sbenjsc 3575191746Sthompsa WPI_LOCK(sc); 3576191746Sthompsa if (wpi_scan(sc)) 3577191746Sthompsa ieee80211_cancel_scan(vap); 3578191746Sthompsa WPI_UNLOCK(sc); 3579173362Sbenjsc} 3580173362Sbenjsc 3581173362Sbenjsc/** 3582173362Sbenjsc * Called by the net80211 framework to indicate 3583173362Sbenjsc * the minimum dwell time has been met, terminate the scan. 3584173362Sbenjsc * We don't actually terminate the scan as the firmware will notify 3585173362Sbenjsc * us when it's finished and we have no way to interrupt it. 3586173362Sbenjsc */ 3587173362Sbenjscstatic void 3588178354Ssamwpi_scan_mindwell(struct ieee80211_scan_state *ss) 3589173362Sbenjsc{ 3590173362Sbenjsc /* NB: don't try to abort scan; wait for firmware to finish */ 3591173362Sbenjsc} 3592173362Sbenjsc 3593173362Sbenjscstatic void 3594191746Sthompsawpi_hwreset(void *arg, int pending) 3595173362Sbenjsc{ 3596191746Sthompsa struct wpi_softc *sc = arg; 3597173362Sbenjsc 3598173362Sbenjsc WPI_LOCK(sc); 3599191746Sthompsa wpi_init_locked(sc, 0); 3600173362Sbenjsc WPI_UNLOCK(sc); 3601173362Sbenjsc} 3602173362Sbenjsc 3603191746Sthompsastatic void 3604191746Sthompsawpi_rfreset(void *arg, int pending) 3605173362Sbenjsc{ 3606191746Sthompsa struct wpi_softc *sc = arg; 3607173362Sbenjsc 3608191746Sthompsa WPI_LOCK(sc); 3609191746Sthompsa wpi_rfkill_resume(sc); 3610191746Sthompsa WPI_UNLOCK(sc); 3611173362Sbenjsc} 3612173362Sbenjsc 3613173362Sbenjsc/* 3614173362Sbenjsc * Allocate DMA-safe memory for firmware transfer. 3615173362Sbenjsc */ 3616173362Sbenjscstatic int 3617173362Sbenjscwpi_alloc_fwmem(struct wpi_softc *sc) 3618173362Sbenjsc{ 3619173362Sbenjsc /* allocate enough contiguous space to store text and data */ 3620173362Sbenjsc return wpi_dma_contig_alloc(sc, &sc->fw_dma, NULL, 3621173362Sbenjsc WPI_FW_MAIN_TEXT_MAXSZ + WPI_FW_MAIN_DATA_MAXSZ, 1, 3622173362Sbenjsc BUS_DMA_NOWAIT); 3623173362Sbenjsc} 3624173362Sbenjsc 3625173362Sbenjscstatic void 3626173362Sbenjscwpi_free_fwmem(struct wpi_softc *sc) 3627173362Sbenjsc{ 3628173362Sbenjsc wpi_dma_contig_free(&sc->fw_dma); 3629173362Sbenjsc} 3630173362Sbenjsc 3631173362Sbenjsc/** 3632177043Sthompsa * Called every second, wpi_watchdog used by the watch dog timer 3633173362Sbenjsc * to check that the card is still alive 3634173362Sbenjsc */ 3635173362Sbenjscstatic void 3636177043Sthompsawpi_watchdog(void *arg) 3637173362Sbenjsc{ 3638173362Sbenjsc struct wpi_softc *sc = arg; 3639177043Sthompsa struct ifnet *ifp = sc->sc_ifp; 3640191746Sthompsa struct ieee80211com *ic = ifp->if_l2com; 3641177043Sthompsa uint32_t tmp; 3642173362Sbenjsc 3643173362Sbenjsc DPRINTFN(WPI_DEBUG_WATCHDOG,("Watchdog: tick\n")); 3644173362Sbenjsc 3645177043Sthompsa if (sc->flags & WPI_FLAG_HW_RADIO_OFF) { 3646177043Sthompsa /* No need to lock firmware memory */ 3647177043Sthompsa tmp = wpi_mem_read(sc, WPI_MEM_HW_RADIO_OFF); 3648177043Sthompsa 3649177043Sthompsa if ((tmp & 0x1) == 0) { 3650177043Sthompsa /* Radio kill switch is still off */ 3651177043Sthompsa callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc); 3652177043Sthompsa return; 3653177043Sthompsa } 3654177043Sthompsa 3655177043Sthompsa device_printf(sc->sc_dev, "Hardware Switch Enabled\n"); 3656191746Sthompsa ieee80211_runtask(ic, &sc->sc_radiotask); 3657177043Sthompsa return; 3658177043Sthompsa } 3659177043Sthompsa 3660177043Sthompsa if (sc->sc_tx_timer > 0) { 3661177043Sthompsa if (--sc->sc_tx_timer == 0) { 3662177043Sthompsa device_printf(sc->sc_dev,"device timeout\n"); 3663177043Sthompsa ifp->if_oerrors++; 3664191746Sthompsa ieee80211_runtask(ic, &sc->sc_restarttask); 3665177043Sthompsa } 3666177043Sthompsa } 3667177043Sthompsa if (sc->sc_scan_timer > 0) { 3668178354Ssam struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 3669178354Ssam if (--sc->sc_scan_timer == 0 && vap != NULL) { 3670177043Sthompsa device_printf(sc->sc_dev,"scan timeout\n"); 3671178354Ssam ieee80211_cancel_scan(vap); 3672191746Sthompsa ieee80211_runtask(ic, &sc->sc_restarttask); 3673177043Sthompsa } 3674177043Sthompsa } 3675177043Sthompsa 3676177043Sthompsa if (ifp->if_drv_flags & IFF_DRV_RUNNING) 3677177043Sthompsa callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc); 3678173362Sbenjsc} 3679173362Sbenjsc 3680173362Sbenjsc#ifdef WPI_DEBUG 3681173362Sbenjscstatic const char *wpi_cmd_str(int cmd) 3682173362Sbenjsc{ 3683178354Ssam switch (cmd) { 3684178354Ssam case WPI_DISABLE_CMD: return "WPI_DISABLE_CMD"; 3685178354Ssam case WPI_CMD_CONFIGURE: return "WPI_CMD_CONFIGURE"; 3686178354Ssam case WPI_CMD_ASSOCIATE: return "WPI_CMD_ASSOCIATE"; 3687178354Ssam case WPI_CMD_SET_WME: return "WPI_CMD_SET_WME"; 3688178354Ssam case WPI_CMD_TSF: return "WPI_CMD_TSF"; 3689178354Ssam case WPI_CMD_ADD_NODE: return "WPI_CMD_ADD_NODE"; 3690178354Ssam case WPI_CMD_TX_DATA: return "WPI_CMD_TX_DATA"; 3691178354Ssam case WPI_CMD_MRR_SETUP: return "WPI_CMD_MRR_SETUP"; 3692178354Ssam case WPI_CMD_SET_LED: return "WPI_CMD_SET_LED"; 3693178354Ssam case WPI_CMD_SET_POWER_MODE: return "WPI_CMD_SET_POWER_MODE"; 3694178354Ssam case WPI_CMD_SCAN: return "WPI_CMD_SCAN"; 3695178354Ssam case WPI_CMD_SET_BEACON:return "WPI_CMD_SET_BEACON"; 3696178354Ssam case WPI_CMD_TXPOWER: return "WPI_CMD_TXPOWER"; 3697178354Ssam case WPI_CMD_BLUETOOTH: return "WPI_CMD_BLUETOOTH"; 3698173362Sbenjsc 3699178354Ssam default: 3700173362Sbenjsc KASSERT(1, ("Unknown Command: %d\n", cmd)); 3701178354Ssam return "UNKNOWN CMD"; /* Make the compiler happy */ 3702173362Sbenjsc } 3703173362Sbenjsc} 3704173362Sbenjsc#endif 3705173362Sbenjsc 3706173362SbenjscMODULE_DEPEND(wpi, pci, 1, 1, 1); 3707173362SbenjscMODULE_DEPEND(wpi, wlan, 1, 1, 1); 3708173362SbenjscMODULE_DEPEND(wpi, firmware, 1, 1, 1); 3709173362SbenjscMODULE_DEPEND(wpi, wlan_amrr, 1, 1, 1); 3710