From: Joe Talbott Date: Wed, 19 May 2010 00:36:03 +0000 (-0400) Subject: if_wpi - Port of FreeBSD's wpi driver for Intel 3945ABG Wifi adapters. X-Git-Tag: v2.9.0~948 X-Git-Url: https://gitweb.dragonflybsd.org/dragonfly.git/commitdiff_plain/4db7dd1ba5369c0e3ec456d9857c9e04380c4b14 if_wpi - Port of FreeBSD's wpi driver for Intel 3945ABG Wifi adapters. --- diff --git a/sys/dev/netif/wpi/Makefile b/sys/dev/netif/wpi/Makefile new file mode 100644 index 0000000000..a45ab4b0c0 --- /dev/null +++ b/sys/dev/netif/wpi/Makefile @@ -0,0 +1,13 @@ +# $DragonFly: $ + +KMOD = if_wpi +SRCS = if_wpi.c device_if.h bus_if.h pci_if.h +SRCS += opt_polling.h +SRCS += miibus_if.h + +.ifndef BUILDING_WITH_KERNEL +opt_polling.h: + echo '#define DEVICE_POLLING 1' > ${.OBJDIR}/${.TARGET} +.endif + +.include diff --git a/sys/dev/netif/wpi/if_wpi.c b/sys/dev/netif/wpi/if_wpi.c new file mode 100644 index 0000000000..4ac5384b4c --- /dev/null +++ b/sys/dev/netif/wpi/if_wpi.c @@ -0,0 +1,3767 @@ +/*- + * Copyright (c) 2006,2007 + * Damien Bergamini + * Benjamin Close + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#define VERSION "20071127" + + +/* +__FBSDID("$FreeBSD: src/sys/dev/wpi/if_wpi.c,v 1.27.2.2 2010/02/14 09:34:27 gavin Exp $"); +*/ + +/* + * Driver for Intel PRO/Wireless 3945ABG 802.11 network adapters. + * + * The 3945ABG network adapter doesn't use traditional hardware as + * many other adaptors do. Instead at run time the eeprom is set into a known + * state and told to load boot firmware. The boot firmware loads an init and a + * main binary firmware image into SRAM on the card via DMA. + * Once the firmware is loaded, the driver/hw then + * communicate by way of circular dma rings via the the SRAM to the firmware. + * + * There is 6 memory rings. 1 command ring, 1 rx data ring & 4 tx data rings. + * The 4 tx data rings allow for prioritization QoS. + * + * The rx data ring consists of 32 dma buffers. Two registers are used to + * indicate where in the ring the driver and the firmware are up to. The + * driver sets the initial read index (reg1) and the initial write index (reg2), + * the firmware updates the read index (reg1) on rx of a packet and fires an + * interrupt. The driver then processes the buffers starting at reg1 indicating + * to the firmware which buffers have been accessed by updating reg2. At the + * same time allocating new memory for the processed buffer. + * + * A similar thing happens with the tx rings. The difference is the firmware + * stop processing buffers once the queue is full and until confirmation + * of a successful transmition (tx_intr) has occurred. + * + * The command ring operates in the same manner as the tx queues. + * + * All communication direct to the card (ie eeprom) is classed as Stage1 + * communication + * + * All communication via the firmware to the card is classed as State2. + * The firmware consists of 2 parts. A bootstrap firmware and a runtime + * firmware. The bootstrap firmware and runtime firmware are loaded + * from host memory via dma to the card then told to execute. From this point + * on the majority of communications between the driver and the card goes + * via the firmware. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include +#include + +#include +#include +#include +/* +#include +*/ +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +/* XXX: move elsewhere */ +#define abs(x) (((x) < 0) ? -(x) : (x)) + +struct mbuf *(*tbr_dequeue_ptr)(struct ifaltq *, int) = NULL; + +#include "if_wpireg.h" +#include "if_wpivar.h" + +#define WPI_DEBUG + +#ifdef WPI_DEBUG +#define DPRINTF(x) do { if (wpi_debug != 0) kprintf x; } while (0) +#define DPRINTFN(n, x) do { if (wpi_debug & n) kprintf x; } while (0) +#define WPI_DEBUG_SET (wpi_debug != 0) + +enum { + WPI_DEBUG_UNUSED = 0x00000001, /* Unused */ + WPI_DEBUG_HW = 0x00000002, /* Stage 1 (eeprom) debugging */ + WPI_DEBUG_TX = 0x00000004, /* Stage 2 TX intrp debugging*/ + WPI_DEBUG_RX = 0x00000008, /* Stage 2 RX intrp debugging */ + WPI_DEBUG_CMD = 0x00000010, /* Stage 2 CMD intrp debugging*/ + WPI_DEBUG_FIRMWARE = 0x00000020, /* firmware(9) loading debug */ + WPI_DEBUG_DMA = 0x00000040, /* DMA (de)allocations/syncs */ + WPI_DEBUG_SCANNING = 0x00000080, /* Stage 2 Scanning debugging */ + WPI_DEBUG_NOTIFY = 0x00000100, /* State 2 Noftif intr debug */ + WPI_DEBUG_TEMP = 0x00000200, /* TXPower/Temp Calibration */ + WPI_DEBUG_OPS = 0x00000400, /* wpi_ops taskq debug */ + WPI_DEBUG_WATCHDOG = 0x00000800, /* Watch dog debug */ + WPI_DEBUG_ANY = 0xffffffff +}; + +static int wpi_debug = 1; +SYSCTL_INT(_debug, OID_AUTO, wpi, CTLFLAG_RW, &wpi_debug, 0, "wpi debug level"); +TUNABLE_INT("debug.wpi", &wpi_debug); + +#else +#define DPRINTF(x) +#define DPRINTFN(n, x) +#define WPI_DEBUG_SET 0 +#endif + +struct wpi_ident { + uint16_t vendor; + uint16_t device; + uint16_t subdevice; + const char *name; +}; + +static const struct wpi_ident wpi_ident_table[] = { + /* The below entries support ABG regardless of the subid */ + { 0x8086, 0x4222, 0x0, "Intel(R) PRO/Wireless 3945ABG" }, + { 0x8086, 0x4227, 0x0, "Intel(R) PRO/Wireless 3945ABG" }, + /* The below entries only support BG */ + { 0x8086, 0x4222, 0x1005, "Intel(R) PRO/Wireless 3945BG" }, + { 0x8086, 0x4222, 0x1034, "Intel(R) PRO/Wireless 3945BG" }, + { 0x8086, 0x4227, 0x1014, "Intel(R) PRO/Wireless 3945BG" }, + { 0x8086, 0x4222, 0x1044, "Intel(R) PRO/Wireless 3945BG" }, + { 0, 0, 0, NULL } +}; + +static struct ieee80211vap *wpi_vap_create(struct ieee80211com *, + const char name[IFNAMSIZ], int unit, int opmode, + int flags, const uint8_t bssid[IEEE80211_ADDR_LEN], + const uint8_t mac[IEEE80211_ADDR_LEN]); +static void wpi_vap_delete(struct ieee80211vap *); +static int wpi_dma_contig_alloc(struct wpi_softc *, struct wpi_dma_info *, + void **, bus_size_t, bus_size_t, int); +static void wpi_dma_contig_free(struct wpi_dma_info *); +static void wpi_dma_map_addr(void *, bus_dma_segment_t *, int, int); +static int wpi_alloc_shared(struct wpi_softc *); +static void wpi_free_shared(struct wpi_softc *); +static int wpi_alloc_rx_ring(struct wpi_softc *, struct wpi_rx_ring *); +static void wpi_reset_rx_ring(struct wpi_softc *, struct wpi_rx_ring *); +static void wpi_free_rx_ring(struct wpi_softc *, struct wpi_rx_ring *); +static int wpi_alloc_tx_ring(struct wpi_softc *, struct wpi_tx_ring *, + int, int); +static void wpi_reset_tx_ring(struct wpi_softc *, struct wpi_tx_ring *); +static void wpi_free_tx_ring(struct wpi_softc *, struct wpi_tx_ring *); +static struct ieee80211_node *wpi_node_alloc(struct ieee80211vap *, + const uint8_t mac[IEEE80211_ADDR_LEN]); +static int wpi_newstate(struct ieee80211vap *, enum ieee80211_state, int); +static void wpi_mem_lock(struct wpi_softc *); +static void wpi_mem_unlock(struct wpi_softc *); +static uint32_t wpi_mem_read(struct wpi_softc *, uint16_t); +static void wpi_mem_write(struct wpi_softc *, uint16_t, uint32_t); +static void wpi_mem_write_region_4(struct wpi_softc *, uint16_t, + const uint32_t *, int); +static uint16_t wpi_read_prom_data(struct wpi_softc *, uint32_t, void *, int); +static int wpi_alloc_fwmem(struct wpi_softc *); +static void wpi_free_fwmem(struct wpi_softc *); +static int wpi_load_firmware(struct wpi_softc *); +static void wpi_unload_firmware(struct wpi_softc *); +static int wpi_load_microcode(struct wpi_softc *, const uint8_t *, int); +static void wpi_rx_intr(struct wpi_softc *, struct wpi_rx_desc *, + struct wpi_rx_data *); +static void wpi_tx_intr(struct wpi_softc *, struct wpi_rx_desc *); +static void wpi_cmd_intr(struct wpi_softc *, struct wpi_rx_desc *); +static void wpi_notif_intr(struct wpi_softc *); +static void wpi_intr(void *); +static uint8_t wpi_plcp_signal(int); +static void wpi_watchdog(void *); +static int wpi_tx_data(struct wpi_softc *, struct mbuf *, + struct ieee80211_node *, int); +static void wpi_start(struct ifnet *); +static void wpi_start_locked(struct ifnet *); +static int wpi_raw_xmit(struct ieee80211_node *, struct mbuf *, + const struct ieee80211_bpf_params *); +static void wpi_scan_start(struct ieee80211com *); +static void wpi_scan_end(struct ieee80211com *); +static void wpi_set_channel(struct ieee80211com *); +static void wpi_scan_curchan(struct ieee80211_scan_state *, unsigned long); +static void wpi_scan_mindwell(struct ieee80211_scan_state *); +static int wpi_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *); +static void wpi_read_eeprom(struct wpi_softc *, + uint8_t macaddr[IEEE80211_ADDR_LEN]); +static void wpi_read_eeprom_channels(struct wpi_softc *, int); +static void wpi_read_eeprom_group(struct wpi_softc *, int); +static int wpi_cmd(struct wpi_softc *, int, const void *, int, int); +static int wpi_wme_update(struct ieee80211com *); +static int wpi_mrr_setup(struct wpi_softc *); +static void wpi_set_led(struct wpi_softc *, uint8_t, uint8_t, uint8_t); +static void wpi_enable_tsf(struct wpi_softc *, struct ieee80211_node *); +#if 0 +static int wpi_setup_beacon(struct wpi_softc *, struct ieee80211_node *); +#endif +static int wpi_auth(struct wpi_softc *, struct ieee80211vap *); +static int wpi_run(struct wpi_softc *, struct ieee80211vap *); +static int wpi_scan(struct wpi_softc *); +static int wpi_config(struct wpi_softc *); +static void wpi_stop_master(struct wpi_softc *); +static int wpi_power_up(struct wpi_softc *); +static int wpi_reset(struct wpi_softc *); +static void wpi_hwreset(void *, int); +static void wpi_rfreset(void *, int); +static void wpi_hw_config(struct wpi_softc *); +static void wpi_init(void *); +static void wpi_init_locked(struct wpi_softc *, int); +static void wpi_stop(struct wpi_softc *); +static void wpi_stop_locked(struct wpi_softc *); + +static void wpi_newassoc(struct ieee80211_node *, int); +static int wpi_set_txpower(struct wpi_softc *, struct ieee80211_channel *, + int); +static void wpi_calib_timeout(void *); +static void wpi_power_calibration(struct wpi_softc *, int); +static int wpi_get_power_index(struct wpi_softc *, + struct wpi_power_group *, struct ieee80211_channel *, int); +#ifdef WPI_DEBUG +static const char *wpi_cmd_str(int); +#endif +static int wpi_probe(device_t); +static int wpi_attach(device_t); +static int wpi_detach(device_t); +static int wpi_shutdown(device_t); +static int wpi_suspend(device_t); +static int wpi_resume(device_t); + + +static device_method_t wpi_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, wpi_probe), + DEVMETHOD(device_attach, wpi_attach), + DEVMETHOD(device_detach, wpi_detach), + DEVMETHOD(device_shutdown, wpi_shutdown), + DEVMETHOD(device_suspend, wpi_suspend), + DEVMETHOD(device_resume, wpi_resume), + + { 0, 0 } +}; + +static driver_t wpi_driver = { + "wpi", + wpi_methods, + sizeof (struct wpi_softc) +}; + +static devclass_t wpi_devclass; + +DRIVER_MODULE(wpi, pci, wpi_driver, wpi_devclass, 0, 0); + +static const uint8_t wpi_ridx_to_plcp[] = { + /* OFDM: IEEE Std 802.11a-1999, pp. 14 Table 80 */ + /* R1-R4 (ral/ural is R4-R1) */ + 0xd, 0xf, 0x5, 0x7, 0x9, 0xb, 0x1, 0x3, + /* CCK: device-dependent */ + 10, 20, 55, 110 +}; +static const uint8_t wpi_ridx_to_rate[] = { + 12, 18, 24, 36, 48, 72, 96, 108, /* OFDM */ + 2, 4, 11, 22 /*CCK */ +}; + + +static int +wpi_probe(device_t dev) +{ + const struct wpi_ident *ident; + + for (ident = wpi_ident_table; ident->name != NULL; ident++) { + if (pci_get_vendor(dev) == ident->vendor && + pci_get_device(dev) == ident->device) { + device_set_desc(dev, ident->name); + return 0; + } + } + return ENXIO; +} + +/** + * Load the firmare image from disk to the allocated dma buffer. + * we also maintain the reference to the firmware pointer as there + * is times where we may need to reload the firmware but we are not + * in a context that can access the filesystem (ie taskq cause by restart) + * + * @return 0 on success, an errno on failure + */ +static int +wpi_load_firmware(struct wpi_softc *sc) +{ + const struct firmware *fp; + struct wpi_dma_info *dma = &sc->fw_dma; + const struct wpi_firmware_hdr *hdr; +#if 0 + struct ifnet *ifp; +#endif + const uint8_t *itext, *idata, *rtext, *rdata, *btext; + uint32_t itextsz, idatasz, rtextsz, rdatasz, btextsz; + int error; + +#if 0 + ifp = sc->sc_ifp; +#endif + DPRINTFN(WPI_DEBUG_FIRMWARE, + ("Attempting Loading Firmware from wpi_fw module\n")); + + WPI_UNLOCK(sc); + +#if 0 + lwkt_serialize_exit(ifp->if_serializer); +#endif + +#if 0 + if ((img = firmware_image_load("", dma->tag)) == NULL) { + error = ENOENT; + lwkt_serialize_enter(ifp->if_serializer); + goto fail; + } +#endif + + + if (sc->fw_fp == NULL && (sc->fw_fp = firmware_get("wpifw")) == NULL) { + device_printf(sc->sc_dev, + "could not load firmware image 'wpifw_fw'\n"); + error = ENOENT; + WPI_LOCK(sc); +#if 0 + lwkt_serialize_enter(ifp->if_serializer); +#endif + goto fail; + } + + fp = sc->fw_fp; + +#if 0 + lwkt_serialize_enter(ifp->if_serializer); +#endif + WPI_LOCK(sc); + + + /* Validate the firmware is minimum a particular version */ + if (fp->version < WPI_FW_MINVERSION) { + device_printf(sc->sc_dev, + "firmware version is too old. Need %d, got %d\n", + WPI_FW_MINVERSION, + fp->version); + error = ENXIO; + goto fail; + } +#if 0 +#endif + + if (fp->datasize < sizeof (struct wpi_firmware_hdr)) { + device_printf(sc->sc_dev, + "firmware file too short: %zu bytes\n", fp->datasize); + error = ENXIO; + goto fail; + } + + hdr = (const struct wpi_firmware_hdr *)fp->data; + + /* | RUNTIME FIRMWARE | INIT FIRMWARE | BOOT FW | + |HDR|<--TEXT-->|<--DATA-->|<--TEXT-->|<--DATA-->|<--TEXT-->| */ + + rtextsz = le32toh(hdr->rtextsz); + rdatasz = le32toh(hdr->rdatasz); + itextsz = le32toh(hdr->itextsz); + idatasz = le32toh(hdr->idatasz); + btextsz = le32toh(hdr->btextsz); + + /* check that all firmware segments are present */ + if (fp->datasize < sizeof (struct wpi_firmware_hdr) + + rtextsz + rdatasz + itextsz + idatasz + btextsz) { + device_printf(sc->sc_dev, + "firmware file too short: %zu bytes\n", fp->datasize); + error = ENXIO; /* XXX appropriate error code? */ + goto fail; + } + + /* get pointers to firmware segments */ + rtext = (const uint8_t *)(hdr + 1); + rdata = rtext + rtextsz; + itext = rdata + rdatasz; + idata = itext + itextsz; + btext = idata + idatasz; + + DPRINTFN(WPI_DEBUG_FIRMWARE, + ("Firmware Version: Major %d, Minor %d, Driver %d, \n" + "runtime (text: %u, data: %u) init (text: %u, data %u) boot (text %u)\n", + (le32toh(hdr->version) & 0xff000000) >> 24, + (le32toh(hdr->version) & 0x00ff0000) >> 16, + (le32toh(hdr->version) & 0x0000ffff), + rtextsz, rdatasz, + itextsz, idatasz, btextsz)); + + DPRINTFN(WPI_DEBUG_FIRMWARE,("rtext 0x%x\n", *(const uint32_t *)rtext)); + DPRINTFN(WPI_DEBUG_FIRMWARE,("rdata 0x%x\n", *(const uint32_t *)rdata)); + DPRINTFN(WPI_DEBUG_FIRMWARE,("itext 0x%x\n", *(const uint32_t *)itext)); + DPRINTFN(WPI_DEBUG_FIRMWARE,("idata 0x%x\n", *(const uint32_t *)idata)); + DPRINTFN(WPI_DEBUG_FIRMWARE,("btext 0x%x\n", *(const uint32_t *)btext)); + + /* sanity checks */ + if (rtextsz > WPI_FW_MAIN_TEXT_MAXSZ || + rdatasz > WPI_FW_MAIN_DATA_MAXSZ || + itextsz > WPI_FW_INIT_TEXT_MAXSZ || + idatasz > WPI_FW_INIT_DATA_MAXSZ || + btextsz > WPI_FW_BOOT_TEXT_MAXSZ || + (btextsz & 3) != 0) { + device_printf(sc->sc_dev, "firmware invalid\n"); + error = EINVAL; + goto fail; + } + + /* copy initialization images into pre-allocated DMA-safe memory */ + memcpy(dma->vaddr, idata, idatasz); + memcpy(dma->vaddr + WPI_FW_INIT_DATA_MAXSZ, itext, itextsz); + + bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE); + + /* tell adapter where to find initialization images */ + wpi_mem_lock(sc); + wpi_mem_write(sc, WPI_MEM_DATA_BASE, dma->paddr); + wpi_mem_write(sc, WPI_MEM_DATA_SIZE, idatasz); + wpi_mem_write(sc, WPI_MEM_TEXT_BASE, + dma->paddr + WPI_FW_INIT_DATA_MAXSZ); + wpi_mem_write(sc, WPI_MEM_TEXT_SIZE, itextsz); + wpi_mem_unlock(sc); + + /* load firmware boot code */ + if ((error = wpi_load_microcode(sc, btext, btextsz)) != 0) { + device_printf(sc->sc_dev, "Failed to load microcode\n"); + goto fail; + } + + /* now press "execute" */ + WPI_WRITE(sc, WPI_RESET, 0); + + /* wait at most one second for the first alive notification */ + if ((error = lksleep(sc, &sc->sc_lock, 0, "wpiinit", hz)) != 0) { + device_printf(sc->sc_dev, + "timeout waiting for adapter to initialize\n"); + goto fail; + } + + /* copy runtime images into pre-allocated DMA-sage memory */ + memcpy(dma->vaddr, rdata, rdatasz); + memcpy(dma->vaddr + WPI_FW_MAIN_DATA_MAXSZ, rtext, rtextsz); + bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE); + + /* tell adapter where to find runtime images */ + wpi_mem_lock(sc); + wpi_mem_write(sc, WPI_MEM_DATA_BASE, dma->paddr); + wpi_mem_write(sc, WPI_MEM_DATA_SIZE, rdatasz); + wpi_mem_write(sc, WPI_MEM_TEXT_BASE, + dma->paddr + WPI_FW_MAIN_DATA_MAXSZ); + wpi_mem_write(sc, WPI_MEM_TEXT_SIZE, WPI_FW_UPDATED | rtextsz); + wpi_mem_unlock(sc); + + /* wait at most one second for the first alive notification */ + if ((error = lksleep(sc, &sc->sc_lock, 0, "wpiinit", hz)) != 0) { + device_printf(sc->sc_dev, + "timeout waiting for adapter to initialize2\n"); + goto fail; + } + + DPRINTFN(WPI_DEBUG_FIRMWARE, + ("Firmware loaded to driver successfully\n")); +/* + sc->sc_fw_image = img; +*/ + return error; +fail: + wpi_unload_firmware(sc); + return error; +} + +/** + * Free the referenced firmware image + */ +static void +wpi_unload_firmware(struct wpi_softc *sc) +{ + struct ifnet *ifp; + ifp = sc->sc_ifp; + + if (sc->fw_fp) { + WPI_UNLOCK(sc); +#if 0 + lwkt_serialize_exit(ifp->if_serializer); +#endif + firmware_put(sc->fw_fp, FIRMWARE_UNLOAD); +#if 0 + firmware_image_unload(sc->sc_fw_image); +#endif +#if 0 + lwkt_serialize_enter(ifp->if_serializer); +#endif + WPI_LOCK(sc); + sc->fw_fp = NULL; + } +} + +static int +wpi_attach(device_t dev) +{ + struct wpi_softc *sc = device_get_softc(dev); + struct ifnet *ifp; + struct ieee80211com *ic; + int ac, error, supportsa = 1; + uint32_t tmp; + const struct wpi_ident *ident; + uint8_t macaddr[IEEE80211_ADDR_LEN]; + + sc->sc_dev = dev; + + if (bootverbose || WPI_DEBUG_SET) + device_printf(sc->sc_dev,"Driver Revision %s\n", VERSION); + + /* + * Some card's only support 802.11b/g not a, check to see if + * this is one such card. A 0x0 in the subdevice table indicates + * the entire subdevice range is to be ignored. + */ + for (ident = wpi_ident_table; ident->name != NULL; ident++) { + if (ident->subdevice && + pci_get_subdevice(dev) == ident->subdevice) { + supportsa = 0; + break; + } + } + + /* Create the tasks that can be queued */ + TASK_INIT(&sc->sc_restarttask, 0, wpi_hwreset, sc); + TASK_INIT(&sc->sc_radiotask, 0, wpi_rfreset, sc); + + WPI_LOCK_INIT(sc); + + callout_init(&sc->calib_to); + callout_init(&sc->watchdog_to); + + if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) { + device_printf(dev, "chip is in D%d power mode " + "-- setting to D0\n", pci_get_powerstate(dev)); + pci_set_powerstate(dev, PCI_POWERSTATE_D0); + } + + /* disable the retry timeout register */ + pci_write_config(dev, 0x41, 0, 1); + + /* enable bus-mastering */ + pci_enable_busmaster(dev); + + sc->mem_rid = PCIR_BAR(0); + sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid, + RF_ACTIVE); + if (sc->mem == NULL) { + device_printf(dev, "could not allocate memory resource\n"); + error = ENOMEM; + goto fail; + } + + sc->sc_st = rman_get_bustag(sc->mem); + sc->sc_sh = rman_get_bushandle(sc->mem); + + sc->irq_rid = 0; + sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid, + RF_ACTIVE | RF_SHAREABLE); + if (sc->irq == NULL) { + device_printf(dev, "could not allocate interrupt resource\n"); + error = ENOMEM; + goto fail; + } + + /* + * Allocate DMA memory for firmware transfers. + */ + if ((error = wpi_alloc_fwmem(sc)) != 0) { + kprintf(": could not allocate firmware memory\n"); + error = ENOMEM; + goto fail; + } + + /* + * Put adapter into a known state. + */ + if ((error = wpi_reset(sc)) != 0) { + device_printf(dev, "could not reset adapter\n"); + goto fail; + } + + wpi_mem_lock(sc); + tmp = wpi_mem_read(sc, WPI_MEM_PCIDEV); + if (bootverbose || WPI_DEBUG_SET) + device_printf(sc->sc_dev, "Hardware Revision (0x%X)\n", tmp); + + wpi_mem_unlock(sc); + + /* Allocate shared page */ + if ((error = wpi_alloc_shared(sc)) != 0) { + device_printf(dev, "could not allocate shared page\n"); + goto fail; + } + + /* tx data queues - 4 for QoS purposes */ + for (ac = 0; ac < WME_NUM_AC; ac++) { + error = wpi_alloc_tx_ring(sc, &sc->txq[ac], WPI_TX_RING_COUNT, ac); + if (error != 0) { + device_printf(dev, "could not allocate Tx ring %d\n",ac); + goto fail; + } + } + + /* command queue to talk to the card's firmware */ + error = wpi_alloc_tx_ring(sc, &sc->cmdq, WPI_CMD_RING_COUNT, 4); + if (error != 0) { + device_printf(dev, "could not allocate command ring\n"); + goto fail; + } + + /* receive data queue */ + error = wpi_alloc_rx_ring(sc, &sc->rxq); + if (error != 0) { + device_printf(dev, "could not allocate Rx ring\n"); + goto fail; + } + + ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); + if (ifp == NULL) { + device_printf(dev, "can not if_alloc()\n"); + error = ENOMEM; + goto fail; + } + ic = ifp->if_l2com; + + ic->ic_ifp = ifp; + ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ + ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ + + /* set device capabilities */ + ic->ic_caps = + IEEE80211_C_STA /* station mode supported */ + | IEEE80211_C_MONITOR /* monitor mode supported */ + | IEEE80211_C_TXPMGT /* tx power management */ + | IEEE80211_C_SHSLOT /* short slot time supported */ + | IEEE80211_C_SHPREAMBLE /* short preamble supported */ + | IEEE80211_C_WPA /* 802.11i */ +/* XXX looks like WME is partly supported? */ +#if 0 + | IEEE80211_C_IBSS /* IBSS mode support */ + | IEEE80211_C_BGSCAN /* capable of bg scanning */ + | IEEE80211_C_WME /* 802.11e */ + | IEEE80211_C_HOSTAP /* Host access point mode */ +#endif + ; + + /* + * Read in the eeprom and also setup the channels for + * net80211. We don't set the rates as net80211 does this for us + */ + wpi_read_eeprom(sc, macaddr); + + if (bootverbose || WPI_DEBUG_SET) { + device_printf(sc->sc_dev, "Regulatory Domain: %.4s\n", sc->domain); + device_printf(sc->sc_dev, "Hardware Type: %c\n", + sc->type > 1 ? 'B': '?'); + device_printf(sc->sc_dev, "Hardware Revision: %c\n", + ((le16toh(sc->rev) & 0xf0) == 0xd0) ? 'D': '?'); + device_printf(sc->sc_dev, "SKU %s support 802.11a\n", + supportsa ? "does" : "does not"); + + /* XXX hw_config uses the PCIDEV for the Hardware rev. Must check + what sc->rev really represents - benjsc 20070615 */ + } + + if_initname(ifp, device_get_name(dev), device_get_unit(dev)); + ifp->if_softc = sc; + ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; + ifp->if_init = wpi_init; + ifp->if_ioctl = wpi_ioctl; + ifp->if_start = wpi_start; + ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN); + ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN; + ifq_set_ready(&ifp->if_snd); + + ieee80211_ifattach(ic, macaddr); + /* override default methods */ + ic->ic_node_alloc = wpi_node_alloc; + ic->ic_newassoc = wpi_newassoc; + ic->ic_raw_xmit = wpi_raw_xmit; + ic->ic_wme.wme_update = wpi_wme_update; + ic->ic_scan_start = wpi_scan_start; + ic->ic_scan_end = wpi_scan_end; + ic->ic_set_channel = wpi_set_channel; + ic->ic_scan_curchan = wpi_scan_curchan; + ic->ic_scan_mindwell = wpi_scan_mindwell; + + ic->ic_vap_create = wpi_vap_create; + ic->ic_vap_delete = wpi_vap_delete; + + ieee80211_radiotap_attach(ic, + &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), + WPI_TX_RADIOTAP_PRESENT, + &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), + WPI_RX_RADIOTAP_PRESENT); + + /* + * Hook our interrupt after all initialization is complete. + */ + error = bus_setup_intr(dev, sc->irq, INTR_MPSAFE, + wpi_intr, sc, &sc->sc_ih, NULL); + if (error != 0) { + device_printf(dev, "could not set up interrupt\n"); + goto fail; + } + + if (bootverbose) + ieee80211_announce(ic); +#ifdef XXX_DEBUG + ieee80211_announce_channels(ic); +#endif + return 0; + +fail: wpi_detach(dev); + return ENXIO; +} + +static int +wpi_detach(device_t dev) +{ + struct wpi_softc *sc = device_get_softc(dev); + struct ifnet *ifp = sc->sc_ifp; + struct ieee80211com *ic; + int ac; + + if (ifp != NULL) { + ic = ifp->if_l2com; + + ieee80211_draintask(ic, &sc->sc_restarttask); + ieee80211_draintask(ic, &sc->sc_radiotask); + wpi_stop(sc); + callout_stop(&sc->watchdog_to); + callout_stop(&sc->calib_to); + ieee80211_ifdetach(ic); + } + + WPI_LOCK(sc); + if (sc->txq[0].data_dmat) { + for (ac = 0; ac < WME_NUM_AC; ac++) + wpi_free_tx_ring(sc, &sc->txq[ac]); + + wpi_free_tx_ring(sc, &sc->cmdq); + wpi_free_rx_ring(sc, &sc->rxq); + wpi_free_shared(sc); + } + + if (sc->fw_fp != NULL) { + wpi_unload_firmware(sc); + } + + if (sc->fw_dma.tag) + wpi_free_fwmem(sc); + WPI_UNLOCK(sc); + + if (sc->irq != NULL) { + bus_teardown_intr(dev, sc->irq, sc->sc_ih); + bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq); + } + + if (sc->mem != NULL) + bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem); + + if (ifp != NULL) + if_free(ifp); + + WPI_LOCK_DESTROY(sc); + + return 0; +} + +static struct ieee80211vap * +wpi_vap_create(struct ieee80211com *ic, + const char name[IFNAMSIZ], int unit, int opmode, int flags, + const uint8_t bssid[IEEE80211_ADDR_LEN], + const uint8_t mac[IEEE80211_ADDR_LEN]) +{ + struct wpi_vap *wvp; + struct ieee80211vap *vap; + + if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ + return NULL; + wvp = (struct wpi_vap *) kmalloc(sizeof(struct wpi_vap), + M_80211_VAP, M_NOWAIT | M_ZERO); + if (wvp == NULL) + return NULL; + vap = &wvp->vap; + ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac); + /* override with driver methods */ + wvp->newstate = vap->iv_newstate; + vap->iv_newstate = wpi_newstate; + + ieee80211_ratectl_init(vap); + + /* complete setup */ + ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status); + ic->ic_opmode = opmode; + return vap; +} + +static void +wpi_vap_delete(struct ieee80211vap *vap) +{ + struct wpi_vap *wvp = WPI_VAP(vap); + + ieee80211_ratectl_deinit(vap); + ieee80211_vap_detach(vap); + kfree(wvp, M_80211_VAP); +} + +static void +wpi_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nsegs, int error) +{ + if (error != 0) + return; + + KASSERT(nsegs == 1, ("too many DMA segments, %d should be 1", nsegs)); + + *(bus_addr_t *)arg = segs[0].ds_addr; +} + +/* + * Allocates a contiguous block of dma memory of the requested size and + * alignment. Due to limitations of the FreeBSD dma subsystem as of 20071217, + * allocations greater than 4096 may fail. Hence if the requested alignment is + * greater we allocate 'alignment' size extra memory and shift the vaddr and + * paddr after the dma load. This bypasses the problem at the cost of a little + * more memory. + */ +static int +wpi_dma_contig_alloc(struct wpi_softc *sc, struct wpi_dma_info *dma, + void **kvap, bus_size_t size, bus_size_t alignment, int flags) +{ + int error; + bus_size_t align; + bus_size_t reqsize; + + DPRINTFN(WPI_DEBUG_DMA, + ("Size: %zd - alignment %zd\n", size, alignment)); + + dma->size = size; + dma->tag = NULL; + + if (alignment > 4096) { + align = PAGE_SIZE; + reqsize = size + alignment; + } else { + align = alignment; + reqsize = size; + } + error = bus_dma_tag_create(dma->tag, align, + 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, + NULL, NULL, reqsize, + 1, reqsize, flags, + &dma->tag); + if (error != 0) { + device_printf(sc->sc_dev, + "could not create shared page DMA tag\n"); + goto fail; + } + error = bus_dmamem_alloc(dma->tag, (void **)&dma->vaddr_start, + flags | BUS_DMA_ZERO, &dma->map); + if (error != 0) { + device_printf(sc->sc_dev, + "could not allocate shared page DMA memory\n"); + goto fail; + } + + error = bus_dmamap_load(dma->tag, dma->map, dma->vaddr_start, + reqsize, wpi_dma_map_addr, &dma->paddr_start, flags); + + /* Save the original pointers so we can free all the memory */ + dma->paddr = dma->paddr_start; + dma->vaddr = dma->vaddr_start; + + /* + * Check the alignment and increment by 4096 until we get the + * requested alignment. Fail if can't obtain the alignment + * we requested. + */ + if ((dma->paddr & (alignment -1 )) != 0) { + int i; + + for (i = 0; i < alignment / 4096; i++) { + if ((dma->paddr & (alignment - 1 )) == 0) + break; + dma->paddr += 4096; + dma->vaddr += 4096; + } + if (i == alignment / 4096) { + device_printf(sc->sc_dev, + "alignment requirement was not satisfied\n"); + goto fail; + } + } + + if (error != 0) { + device_printf(sc->sc_dev, + "could not load shared page DMA map\n"); + goto fail; + } + + if (kvap != NULL) + *kvap = dma->vaddr; + + return 0; + +fail: + wpi_dma_contig_free(dma); + return error; +} + +static void +wpi_dma_contig_free(struct wpi_dma_info *dma) +{ + if (dma->tag) { + if (dma->map != NULL) { + if (dma->paddr_start != 0) { + bus_dmamap_sync(dma->tag, dma->map, + BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); + bus_dmamap_unload(dma->tag, dma->map); + } + bus_dmamem_free(dma->tag, &dma->vaddr_start, dma->map); + } + bus_dma_tag_destroy(dma->tag); + } +} + +/* + * Allocate a shared page between host and NIC. + */ +static int +wpi_alloc_shared(struct wpi_softc *sc) +{ + int error; + + error = wpi_dma_contig_alloc(sc, &sc->shared_dma, + (void **)&sc->shared, sizeof (struct wpi_shared), + PAGE_SIZE, + BUS_DMA_NOWAIT); + + if (error != 0) { + device_printf(sc->sc_dev, + "could not allocate shared area DMA memory\n"); + } + + return error; +} + +static void +wpi_free_shared(struct wpi_softc *sc) +{ + wpi_dma_contig_free(&sc->shared_dma); +} + +static int +wpi_alloc_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring) +{ + + int i, error; + + ring->cur = 0; + + error = wpi_dma_contig_alloc(sc, &ring->desc_dma, + (void **)&ring->desc, WPI_RX_RING_COUNT * sizeof (uint32_t), + WPI_RING_DMA_ALIGN, BUS_DMA_NOWAIT); + + if (error != 0) { + device_printf(sc->sc_dev, + "%s: could not allocate rx ring DMA memory, error %d\n", + __func__, error); + goto fail; + } + + error = bus_dma_tag_create(ring->data_dmat, 1, 0, + BUS_SPACE_MAXADDR_32BIT, + BUS_SPACE_MAXADDR, NULL, NULL, MJUMPAGESIZE, 1, + MCLBYTES, BUS_DMA_NOWAIT, &ring->data_dmat); + if (error != 0) { + device_printf(sc->sc_dev, + "%s: bus_dma_tag_create_failed, error %d\n", + __func__, error); + goto fail; + } + + /* + * Setup Rx buffers. + */ + for (i = 0; i < WPI_RX_RING_COUNT; i++) { + struct wpi_rx_data *data = &ring->data[i]; + struct mbuf *m; + bus_addr_t paddr; + + error = bus_dmamap_create(ring->data_dmat, 0, &data->map); + if (error != 0) { + device_printf(sc->sc_dev, + "%s: bus_dmamap_create failed, error %d\n", + __func__, error); + goto fail; + } + m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); + if (m == NULL) { + device_printf(sc->sc_dev, + "%s: could not allocate rx mbuf\n", __func__); + error = ENOMEM; + goto fail; + } + /* map page */ + error = bus_dmamap_load(ring->data_dmat, data->map, + mtod(m, caddr_t), MCLBYTES, + wpi_dma_map_addr, &paddr, BUS_DMA_NOWAIT); + if (error != 0 && error != EFBIG) { + device_printf(sc->sc_dev, + "%s: bus_dmamap_load failed, error %d\n", + __func__, error); + m_freem(m); + error = ENOMEM; /* XXX unique code */ + goto fail; + } + bus_dmamap_sync(ring->data_dmat, data->map, + BUS_DMASYNC_PREWRITE); + + data->m = m; + ring->desc[i] = htole32(paddr); + } + bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, + BUS_DMASYNC_PREWRITE); + return 0; +fail: + wpi_free_rx_ring(sc, ring); + return error; +} + +static void +wpi_reset_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring) +{ + int ntries; + + wpi_mem_lock(sc); + + WPI_WRITE(sc, WPI_RX_CONFIG, 0); + + for (ntries = 0; ntries < 100; ntries++) { + if (WPI_READ(sc, WPI_RX_STATUS) & WPI_RX_IDLE) + break; + DELAY(10); + } + + wpi_mem_unlock(sc); + +#ifdef WPI_DEBUG + if (ntries == 100 && wpi_debug > 0) + device_printf(sc->sc_dev, "timeout resetting Rx ring\n"); +#endif + + ring->cur = 0; +} + +static void +wpi_free_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring) +{ + int i; + + wpi_dma_contig_free(&ring->desc_dma); + + for (i = 0; i < WPI_RX_RING_COUNT; i++) + if (ring->data[i].m != NULL) + m_freem(ring->data[i].m); +} + +static int +wpi_alloc_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring, int count, + int qid) +{ + struct wpi_tx_data *data; + int i, error; + + ring->qid = qid; + ring->count = count; + ring->queued = 0; + ring->cur = 0; + ring->data = NULL; + + error = wpi_dma_contig_alloc(sc, &ring->desc_dma, + (void **)&ring->desc, count * sizeof (struct wpi_tx_desc), + WPI_RING_DMA_ALIGN, BUS_DMA_NOWAIT); + + if (error != 0) { + device_printf(sc->sc_dev, "could not allocate tx dma memory\n"); + goto fail; + } + + /* update shared page with ring's base address */ + sc->shared->txbase[qid] = htole32(ring->desc_dma.paddr); + + error = wpi_dma_contig_alloc(sc, &ring->cmd_dma, (void **)&ring->cmd, + count * sizeof (struct wpi_tx_cmd), WPI_RING_DMA_ALIGN, + BUS_DMA_NOWAIT); + + if (error != 0) { + device_printf(sc->sc_dev, + "could not allocate tx command DMA memory\n"); + goto fail; + } + + ring->data = kmalloc(count * sizeof (struct wpi_tx_data), M_DEVBUF, + M_NOWAIT | M_ZERO); + if (ring->data == NULL) { + device_printf(sc->sc_dev, + "could not allocate tx data slots\n"); + goto fail; + } + + error = bus_dma_tag_create(ring->data_dmat, 1, 0, + BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, + WPI_MAX_SCATTER - 1, MCLBYTES, BUS_DMA_NOWAIT, + &ring->data_dmat); + if (error != 0) { + device_printf(sc->sc_dev, "could not create data DMA tag\n"); + goto fail; + } + + for (i = 0; i < count; i++) { + data = &ring->data[i]; + + error = bus_dmamap_create(ring->data_dmat, 0, &data->map); + if (error != 0) { + device_printf(sc->sc_dev, + "could not create tx buf DMA map\n"); + goto fail; + } + bus_dmamap_sync(ring->data_dmat, data->map, + BUS_DMASYNC_PREWRITE); + } + + return 0; + +fail: + wpi_free_tx_ring(sc, ring); + return error; +} + +static void +wpi_reset_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring) +{ + struct wpi_tx_data *data; + int i, ntries; + + wpi_mem_lock(sc); + + WPI_WRITE(sc, WPI_TX_CONFIG(ring->qid), 0); + for (ntries = 0; ntries < 100; ntries++) { + if (WPI_READ(sc, WPI_TX_STATUS) & WPI_TX_IDLE(ring->qid)) + break; + DELAY(10); + } +#ifdef WPI_DEBUG + if (ntries == 100 && wpi_debug > 0) + device_printf(sc->sc_dev, "timeout resetting Tx ring %d\n", + ring->qid); +#endif + wpi_mem_unlock(sc); + + for (i = 0; i < ring->count; i++) { + data = &ring->data[i]; + + if (data->m != NULL) { + bus_dmamap_unload(ring->data_dmat, data->map); + m_freem(data->m); + data->m = NULL; + } + } + + ring->queued = 0; + ring->cur = 0; +} + +static void +wpi_free_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring) +{ + struct wpi_tx_data *data; + int i; + + wpi_dma_contig_free(&ring->desc_dma); + wpi_dma_contig_free(&ring->cmd_dma); + + if (ring->data != NULL) { + for (i = 0; i < ring->count; i++) { + data = &ring->data[i]; + + if (data->m != NULL) { + bus_dmamap_sync(ring->data_dmat, data->map, + BUS_DMASYNC_POSTWRITE); + bus_dmamap_unload(ring->data_dmat, data->map); + m_freem(data->m); + data->m = NULL; + } + } + kfree(ring->data, M_DEVBUF); + } + + if (ring->data_dmat != NULL) + bus_dma_tag_destroy(ring->data_dmat); +} + +static int +wpi_shutdown(device_t dev) +{ + struct wpi_softc *sc = device_get_softc(dev); + + WPI_LOCK(sc); + wpi_stop_locked(sc); + wpi_unload_firmware(sc); + WPI_UNLOCK(sc); + + return 0; +} + +static int +wpi_suspend(device_t dev) +{ + struct wpi_softc *sc = device_get_softc(dev); + + wpi_stop(sc); + return 0; +} + +static int +wpi_resume(device_t dev) +{ + struct wpi_softc *sc = device_get_softc(dev); + struct ifnet *ifp = sc->sc_ifp; + + pci_write_config(dev, 0x41, 0, 1); + + if (ifp->if_flags & IFF_UP) { + wpi_init(ifp->if_softc); + if (ifp->if_flags & IFF_RUNNING) + wpi_start(ifp); + } + return 0; +} + +/* ARGSUSED */ +static struct ieee80211_node * +wpi_node_alloc(struct ieee80211vap *vap __unused, + const uint8_t mac[IEEE80211_ADDR_LEN] __unused) +{ + struct wpi_node *wn; + + wn = kmalloc(sizeof (struct wpi_node), M_80211_NODE, M_NOWAIT | M_ZERO); + + return &wn->ni; +} + +/** + * Called by net80211 when ever there is a change to 80211 state machine + */ +static int +wpi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) +{ + struct wpi_vap *wvp = WPI_VAP(vap); + struct ieee80211com *ic = vap->iv_ic; + struct ifnet *ifp = ic->ic_ifp; + struct wpi_softc *sc = ifp->if_softc; + int error; + + DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__, + ieee80211_state_name[vap->iv_state], + ieee80211_state_name[nstate], sc->flags)); + + IEEE80211_UNLOCK(ic); + WPI_LOCK(sc); + if (nstate == IEEE80211_S_AUTH) { + /* The node must be registered in the firmware before auth */ + error = wpi_auth(sc, vap); + if (error != 0) { + device_printf(sc->sc_dev, + "%s: could not move to auth state, error %d\n", + __func__, error); + } + } + if (nstate == IEEE80211_S_RUN && vap->iv_state != IEEE80211_S_RUN) { + error = wpi_run(sc, vap); + if (error != 0) { + device_printf(sc->sc_dev, + "%s: could not move to run state, error %d\n", + __func__, error); + } + } + if (nstate == IEEE80211_S_RUN) { + /* RUN -> RUN transition; just restart the timers */ + wpi_calib_timeout(sc); + /* XXX split out rate control timer */ + } + WPI_UNLOCK(sc); + IEEE80211_LOCK(ic); + return wvp->newstate(vap, nstate, arg); +} + +/* + * Grab exclusive access to NIC memory. + */ +static void +wpi_mem_lock(struct wpi_softc *sc) +{ + int ntries; + uint32_t tmp; + + tmp = WPI_READ(sc, WPI_GPIO_CTL); + WPI_WRITE(sc, WPI_GPIO_CTL, tmp | WPI_GPIO_MAC); + + /* spin until we actually get the lock */ + for (ntries = 0; ntries < 100; ntries++) { + if ((WPI_READ(sc, WPI_GPIO_CTL) & + (WPI_GPIO_CLOCK | WPI_GPIO_SLEEP)) == WPI_GPIO_CLOCK) + break; + DELAY(10); + } + if (ntries == 100) + device_printf(sc->sc_dev, "could not lock memory\n"); +} + +/* + * Release lock on NIC memory. + */ +static void +wpi_mem_unlock(struct wpi_softc *sc) +{ + uint32_t tmp = WPI_READ(sc, WPI_GPIO_CTL); + WPI_WRITE(sc, WPI_GPIO_CTL, tmp & ~WPI_GPIO_MAC); +} + +static uint32_t +wpi_mem_read(struct wpi_softc *sc, uint16_t addr) +{ + WPI_WRITE(sc, WPI_READ_MEM_ADDR, WPI_MEM_4 | addr); + return WPI_READ(sc, WPI_READ_MEM_DATA); +} + +static void +wpi_mem_write(struct wpi_softc *sc, uint16_t addr, uint32_t data) +{ + WPI_WRITE(sc, WPI_WRITE_MEM_ADDR, WPI_MEM_4 | addr); + WPI_WRITE(sc, WPI_WRITE_MEM_DATA, data); +} + +static void +wpi_mem_write_region_4(struct wpi_softc *sc, uint16_t addr, + const uint32_t *data, int wlen) +{ + for (; wlen > 0; wlen--, data++, addr+=4) + wpi_mem_write(sc, addr, *data); +} + +/* + * Read data from the EEPROM. We access EEPROM through the MAC instead of + * using the traditional bit-bang method. Data is read up until len bytes have + * been obtained. + */ +static uint16_t +wpi_read_prom_data(struct wpi_softc *sc, uint32_t addr, void *data, int len) +{ + int ntries; + uint32_t val; + uint8_t *out = data; + + wpi_mem_lock(sc); + + for (; len > 0; len -= 2, addr++) { + WPI_WRITE(sc, WPI_EEPROM_CTL, addr << 2); + + for (ntries = 0; ntries < 10; ntries++) { + if ((val = WPI_READ(sc, WPI_EEPROM_CTL)) & WPI_EEPROM_READY) + break; + DELAY(5); + } + + if (ntries == 10) { + device_printf(sc->sc_dev, "could not read EEPROM\n"); + return ETIMEDOUT; + } + + *out++= val >> 16; + if (len > 1) + *out ++= val >> 24; + } + + wpi_mem_unlock(sc); + + return 0; +} + +/* + * The firmware text and data segments are transferred to the NIC using DMA. + * The driver just copies the firmware into DMA-safe memory and tells the NIC + * where to find it. Once the NIC has copied the firmware into its internal + * memory, we can free our local copy in the driver. + */ +static int +wpi_load_microcode(struct wpi_softc *sc, const uint8_t *fw, int size) +{ + int error, ntries; + + DPRINTFN(WPI_DEBUG_HW,("Loading microcode size 0x%x\n", size)); + + size /= sizeof(uint32_t); + + wpi_mem_lock(sc); + + wpi_mem_write_region_4(sc, WPI_MEM_UCODE_BASE, + (const uint32_t *)fw, size); + + wpi_mem_write(sc, WPI_MEM_UCODE_SRC, 0); + wpi_mem_write(sc, WPI_MEM_UCODE_DST, WPI_FW_TEXT); + wpi_mem_write(sc, WPI_MEM_UCODE_SIZE, size); + + /* run microcode */ + wpi_mem_write(sc, WPI_MEM_UCODE_CTL, WPI_UC_RUN); + + /* wait while the adapter is busy copying the firmware */ + for (error = 0, ntries = 0; ntries < 1000; ntries++) { + uint32_t status = WPI_READ(sc, WPI_TX_STATUS); + DPRINTFN(WPI_DEBUG_HW, + ("firmware status=0x%x, val=0x%x, result=0x%x\n", status, + WPI_TX_IDLE(6), status & WPI_TX_IDLE(6))); + if (status & WPI_TX_IDLE(6)) { + DPRINTFN(WPI_DEBUG_HW, + ("Status Match! - ntries = %d\n", ntries)); + break; + } + DELAY(10); + } + if (ntries == 1000) { + device_printf(sc->sc_dev, "timeout transferring firmware\n"); + error = ETIMEDOUT; + } + + /* start the microcode executing */ + wpi_mem_write(sc, WPI_MEM_UCODE_CTL, WPI_UC_ENABLE); + + wpi_mem_unlock(sc); + + return (error); +} + +static void +wpi_rx_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc, + struct wpi_rx_data *data) +{ + struct ifnet *ifp = sc->sc_ifp; + struct ieee80211com *ic = ifp->if_l2com; + struct wpi_rx_ring *ring = &sc->rxq; + struct wpi_rx_stat *stat; + struct wpi_rx_head *head; + struct wpi_rx_tail *tail; + struct ieee80211_node *ni; + struct mbuf *m, *mnew; + bus_addr_t paddr; + int error; + + stat = (struct wpi_rx_stat *)(desc + 1); + + if (stat->len > WPI_STAT_MAXLEN) { + device_printf(sc->sc_dev, "invalid rx statistic header\n"); + ifp->if_ierrors++; + return; + } + + head = (struct wpi_rx_head *)((caddr_t)(stat + 1) + stat->len); + tail = (struct wpi_rx_tail *)((caddr_t)(head + 1) + le16toh(head->len)); + + DPRINTFN(WPI_DEBUG_RX, ("rx intr: idx=%d len=%d stat len=%d rssi=%d " + "rate=%x chan=%d tstamp=%ju\n", ring->cur, le32toh(desc->len), + le16toh(head->len), (int8_t)stat->rssi, head->rate, head->chan, + (uintmax_t)le64toh(tail->tstamp))); + + /* discard Rx frames with bad CRC early */ + if ((le32toh(tail->flags) & WPI_RX_NOERROR) != WPI_RX_NOERROR) { + DPRINTFN(WPI_DEBUG_RX, ("%s: rx flags error %x\n", __func__, + le32toh(tail->flags))); + ifp->if_ierrors++; + return; + } + if (le16toh(head->len) < sizeof (struct ieee80211_frame)) { + DPRINTFN(WPI_DEBUG_RX, ("%s: frame too short: %d\n", __func__, + le16toh(head->len))); + ifp->if_ierrors++; + return; + } + + /* XXX don't need mbuf, just dma buffer */ + mnew = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); + if (mnew == NULL) { + DPRINTFN(WPI_DEBUG_RX, ("%s: no mbuf to restock ring\n", + __func__)); + ifp->if_ierrors++; + return; + } + error = bus_dmamap_load(ring->data_dmat, data->map, + mtod(mnew, caddr_t), MCLBYTES, + wpi_dma_map_addr, &paddr, BUS_DMA_NOWAIT); + if (error != 0 && error != EFBIG) { + device_printf(sc->sc_dev, + "%s: bus_dmamap_load failed, error %d\n", __func__, error); + m_freem(mnew); + ifp->if_ierrors++; + return; + } + bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE); + + /* finalize mbuf and swap in new one */ + m = data->m; + m->m_pkthdr.rcvif = ifp; + m->m_data = (caddr_t)(head + 1); + m->m_pkthdr.len = m->m_len = le16toh(head->len); + + data->m = mnew; + /* update Rx descriptor */ + ring->desc[ring->cur] = htole32(paddr); + + if (ieee80211_radiotap_active(ic)) { + struct wpi_rx_radiotap_header *tap = &sc->sc_rxtap; + + tap->wr_flags = 0; + tap->wr_chan_freq = + htole16(ic->ic_channels[head->chan].ic_freq); + tap->wr_chan_flags = + htole16(ic->ic_channels[head->chan].ic_flags); + tap->wr_dbm_antsignal = (int8_t)(stat->rssi - WPI_RSSI_OFFSET); + tap->wr_dbm_antnoise = (int8_t)le16toh(stat->noise); + tap->wr_tsft = tail->tstamp; + tap->wr_antenna = (le16toh(head->flags) >> 4) & 0xf; + switch (head->rate) { + /* CCK rates */ + case 10: tap->wr_rate = 2; break; + case 20: tap->wr_rate = 4; break; + case 55: tap->wr_rate = 11; break; + case 110: tap->wr_rate = 22; break; + /* OFDM rates */ + case 0xd: tap->wr_rate = 12; break; + case 0xf: tap->wr_rate = 18; break; + case 0x5: tap->wr_rate = 24; break; + case 0x7: tap->wr_rate = 36; break; + case 0x9: tap->wr_rate = 48; break; + case 0xb: tap->wr_rate = 72; break; + case 0x1: tap->wr_rate = 96; break; + case 0x3: tap->wr_rate = 108; break; + /* unknown rate: should not happen */ + default: tap->wr_rate = 0; + } + if (le16toh(head->flags) & 0x4) + tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; + } + + WPI_UNLOCK(sc); + + ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *)); + if (ni != NULL) { + (void) ieee80211_input(ni, m, stat->rssi, 0); + ieee80211_free_node(ni); + } else + (void) ieee80211_input_all(ic, m, stat->rssi, 0); + + WPI_LOCK(sc); +} + +static void +wpi_tx_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc) +{ + struct ifnet *ifp = sc->sc_ifp; + struct wpi_tx_ring *ring = &sc->txq[desc->qid & 0x3]; + struct wpi_tx_data *txdata = &ring->data[desc->idx]; + struct wpi_tx_stat *stat = (struct wpi_tx_stat *)(desc + 1); + struct ieee80211_node *ni = txdata->ni; + struct ieee80211vap *vap = ni->ni_vap; + int retrycnt = 0; + + DPRINTFN(WPI_DEBUG_TX, ("tx done: qid=%d idx=%d retries=%d nkill=%d " + "rate=%x duration=%d status=%x\n", desc->qid, desc->idx, + stat->ntries, stat->nkill, stat->rate, le32toh(stat->duration), + le32toh(stat->status))); + + /* + * Update rate control statistics for the node. + * XXX we should not count mgmt frames since they're always sent at + * the lowest available bit-rate. + * XXX frames w/o ACK shouldn't be used either + */ + if (stat->ntries > 0) { + DPRINTFN(WPI_DEBUG_TX, ("%d retries\n", stat->ntries)); + retrycnt = 1; + } + ieee80211_ratectl_tx_complete(vap, ni, IEEE80211_RATECTL_TX_SUCCESS, + &retrycnt, NULL); + + /* XXX oerrors should only count errors !maxtries */ + if ((le32toh(stat->status) & 0xff) != 1) + ifp->if_oerrors++; + else + ifp->if_opackets++; + + bus_dmamap_sync(ring->data_dmat, txdata->map, BUS_DMASYNC_POSTWRITE); + bus_dmamap_unload(ring->data_dmat, txdata->map); + /* XXX handle M_TXCB? */ + m_freem(txdata->m); + txdata->m = NULL; + ieee80211_free_node(txdata->ni); + txdata->ni = NULL; + + ring->queued--; + + sc->sc_tx_timer = 0; + ifp->if_flags &= ~IFF_OACTIVE; + wpi_start_locked(ifp); +} + +static void +wpi_cmd_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc) +{ + struct wpi_tx_ring *ring = &sc->cmdq; + struct wpi_tx_data *data; + + DPRINTFN(WPI_DEBUG_CMD, ("cmd notification qid=%x idx=%d flags=%x " + "type=%s len=%d\n", desc->qid, desc->idx, + desc->flags, wpi_cmd_str(desc->type), + le32toh(desc->len))); + + if ((desc->qid & 7) != 4) + return; /* not a command ack */ + + data = &ring->data[desc->idx]; + + /* if the command was mapped in a mbuf, free it */ + if (data->m != NULL) { + bus_dmamap_unload(ring->data_dmat, data->map); + m_freem(data->m); + data->m = NULL; + } + + sc->flags &= ~WPI_FLAG_BUSY; + wakeup(&ring->cmd[desc->idx]); +} + +static void +wpi_notif_intr(struct wpi_softc *sc) +{ + struct ifnet *ifp = sc->sc_ifp; + struct ieee80211com *ic = ifp->if_l2com; + struct wpi_rx_desc *desc; + struct wpi_rx_data *data; + uint32_t hw; + + hw = le32toh(sc->shared->next); + while (sc->rxq.cur != hw) { + data = &sc->rxq.data[sc->rxq.cur]; + desc = (void *)data->m->m_ext.ext_buf; + + DPRINTFN(WPI_DEBUG_NOTIFY, + ("notify qid=%x idx=%d flags=%x type=%d len=%d\n", + desc->qid, + desc->idx, + desc->flags, + desc->type, + le32toh(desc->len))); + + if (!(desc->qid & 0x80)) /* reply to a command */ + wpi_cmd_intr(sc, desc); + + switch (desc->type) { + case WPI_RX_DONE: + /* a 802.11 frame was received */ + wpi_rx_intr(sc, desc, data); + break; + + case WPI_TX_DONE: + /* a 802.11 frame has been transmitted */ + wpi_tx_intr(sc, desc); + break; + + case WPI_UC_READY: + { + struct wpi_ucode_info *uc = + (struct wpi_ucode_info *)(desc + 1); + + /* the microcontroller is ready */ + DPRINTF(("microcode alive notification version %x " + "alive %x\n", le32toh(uc->version), + le32toh(uc->valid))); + + if (le32toh(uc->valid) != 1) { + device_printf(sc->sc_dev, + "microcontroller initialization failed\n"); + wpi_stop_locked(sc); + } + break; + } + case WPI_STATE_CHANGED: + { + uint32_t *status = (uint32_t *)(desc + 1); + + /* enabled/disabled notification */ + DPRINTF(("state changed to %x\n", le32toh(*status))); + + if (le32toh(*status) & 1) { + device_printf(sc->sc_dev, + "Radio transmitter is switched off\n"); + sc->flags |= WPI_FLAG_HW_RADIO_OFF; + ifp->if_flags &= ~IFF_RUNNING; + /* Disable firmware commands */ + WPI_WRITE(sc, WPI_UCODE_SET, WPI_DISABLE_CMD); + } + break; + } + case WPI_START_SCAN: + { +#ifdef WPI_DEBUG + struct wpi_start_scan *scan = + (struct wpi_start_scan *)(desc + 1); +#endif + + DPRINTFN(WPI_DEBUG_SCANNING, + ("scanning channel %d status %x\n", + scan->chan, le32toh(scan->status))); + break; + } + case WPI_STOP_SCAN: + { +#ifdef WPI_DEBUG + struct wpi_stop_scan *scan = + (struct wpi_stop_scan *)(desc + 1); +#endif + struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); + + DPRINTFN(WPI_DEBUG_SCANNING, + ("scan finished nchan=%d status=%d chan=%d\n", + scan->nchan, scan->status, scan->chan)); + + sc->sc_scan_timer = 0; + ieee80211_scan_next(vap); + break; + } + case WPI_MISSED_BEACON: + { + struct wpi_missed_beacon *beacon = + (struct wpi_missed_beacon *)(desc + 1); + struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); + + if (le32toh(beacon->consecutive) >= + vap->iv_bmissthreshold) { + DPRINTF(("Beacon miss: %u >= %u\n", + le32toh(beacon->consecutive), + vap->iv_bmissthreshold)); + ieee80211_beacon_miss(ic); + } + break; + } + } + + sc->rxq.cur = (sc->rxq.cur + 1) % WPI_RX_RING_COUNT; + } + + /* tell the firmware what we have processed */ + hw = (hw == 0) ? WPI_RX_RING_COUNT - 1 : hw - 1; + WPI_WRITE(sc, WPI_RX_WIDX, hw & ~7); +} + +static void +wpi_intr(void *arg) +{ + struct wpi_softc *sc = arg; + uint32_t r; + + WPI_LOCK(sc); + + r = WPI_READ(sc, WPI_INTR); + if (r == 0 || r == 0xffffffff) { + WPI_UNLOCK(sc); + return; + } + + /* disable interrupts */ + WPI_WRITE(sc, WPI_MASK, 0); + /* ack interrupts */ + WPI_WRITE(sc, WPI_INTR, r); + + if (r & (WPI_SW_ERROR | WPI_HW_ERROR)) { + struct ifnet *ifp = sc->sc_ifp; + struct ieee80211com *ic = ifp->if_l2com; + struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); + + device_printf(sc->sc_dev, "fatal firmware error\n"); + DPRINTFN(6,("(%s)\n", (r & WPI_SW_ERROR) ? "(Software Error)" : + "(Hardware Error)")); + if (vap != NULL) + ieee80211_cancel_scan(vap); + ieee80211_runtask(ic, &sc->sc_restarttask); + sc->flags &= ~WPI_FLAG_BUSY; + WPI_UNLOCK(sc); + return; + } + + if (r & WPI_RX_INTR) + wpi_notif_intr(sc); + + if (r & WPI_ALIVE_INTR) /* firmware initialized */ + wakeup(sc); + + /* re-enable interrupts */ + if (sc->sc_ifp->if_flags & IFF_UP) + WPI_WRITE(sc, WPI_MASK, WPI_INTR_MASK); + + WPI_UNLOCK(sc); +} + +static uint8_t +wpi_plcp_signal(int rate) +{ + switch (rate) { + /* CCK rates (returned values are device-dependent) */ + case 2: return 10; + case 4: return 20; + case 11: return 55; + case 22: return 110; + + /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ + /* R1-R4 (ral/ural is R4-R1) */ + case 12: return 0xd; + case 18: return 0xf; + case 24: return 0x5; + case 36: return 0x7; + case 48: return 0x9; + case 72: return 0xb; + case 96: return 0x1; + case 108: return 0x3; + + /* unsupported rates (should not get there) */ + default: return 0; + } +} + +/* quickly determine if a given rate is CCK or OFDM */ +#define WPI_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22) + +/* + * Construct the data packet for a transmit buffer and acutally put + * the buffer onto the transmit ring, kicking the card to process the + * the buffer. + */ +static int +wpi_tx_data(struct wpi_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, + int ac) +{ + struct ieee80211vap *vap = ni->ni_vap; + struct ifnet *ifp = sc->sc_ifp; + struct ieee80211com *ic = ifp->if_l2com; + const struct chanAccParams *cap = &ic->ic_wme.wme_chanParams; + struct wpi_tx_ring *ring = &sc->txq[ac]; + struct wpi_tx_desc *desc; + struct wpi_tx_data *data; + struct wpi_tx_cmd *cmd; + struct wpi_cmd_data *tx; + struct ieee80211_frame *wh; + const struct ieee80211_txparam *tp; + struct ieee80211_key *k; + struct mbuf *mnew; + int i, error, nsegs, rate, hdrlen, ismcast; + bus_dma_segment_t segs[WPI_MAX_SCATTER]; + + desc = &ring->desc[ring->cur]; + data = &ring->data[ring->cur]; + + wh = mtod(m0, struct ieee80211_frame *); + + hdrlen = ieee80211_hdrsize(wh); + ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1); + + if (wh->i_fc[1] & IEEE80211_FC1_WEP) { + k = ieee80211_crypto_encap(ni, m0); + if (k == NULL) { + m_freem(m0); + return ENOBUFS; + } + /* packet header may have moved, reset our local pointer */ + wh = mtod(m0, struct ieee80211_frame *); + } + + cmd = &ring->cmd[ring->cur]; + cmd->code = WPI_CMD_TX_DATA; + cmd->flags = 0; + cmd->qid = ring->qid; + cmd->idx = ring->cur; + + tx = (struct wpi_cmd_data *)cmd->data; + tx->flags = htole32(WPI_TX_AUTO_SEQ); + tx->timeout = htole16(0); + tx->ofdm_mask = 0xff; + tx->cck_mask = 0x0f; + tx->lifetime = htole32(WPI_LIFETIME_INFINITE); + tx->id = ismcast ? WPI_ID_BROADCAST : WPI_ID_BSS; + tx->len = htole16(m0->m_pkthdr.len); + + if (!ismcast) { + if ((ni->ni_flags & IEEE80211_NODE_QOS) == 0 || + !cap->cap_wmeParams[ac].wmep_noackPolicy) + tx->flags |= htole32(WPI_TX_NEED_ACK); + if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) { + tx->flags |= htole32(WPI_TX_NEED_RTS|WPI_TX_FULL_TXOP); + tx->rts_ntries = 7; + } + } + /* pick a rate */ + tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; + if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_MGT) { + uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; + /* tell h/w to set timestamp in probe responses */ + if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP) + tx->flags |= htole32(WPI_TX_INSERT_TSTAMP); + if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ || + subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ) + tx->timeout = htole16(3); + else + tx->timeout = htole16(2); + rate = tp->mgmtrate; + } else if (ismcast) { + rate = tp->mcastrate; + } else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) { + rate = tp->ucastrate; + } else { + (void) ieee80211_ratectl_rate(ni, NULL, 0); + rate = ni->ni_txrate; + } + tx->rate = wpi_plcp_signal(rate); + + /* be very persistant at sending frames out */ +#if 0 + tx->data_ntries = tp->maxretry; +#else + tx->data_ntries = 30; /* XXX way too high */ +#endif + + if (ieee80211_radiotap_active_vap(vap)) { + struct wpi_tx_radiotap_header *tap = &sc->sc_txtap; + tap->wt_flags = 0; + tap->wt_rate = rate; + tap->wt_hwqueue = ac; + if (wh->i_fc[1] & IEEE80211_FC1_WEP) + tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; + + ieee80211_radiotap_tx(vap, m0); + } + + /* save and trim IEEE802.11 header */ + m_copydata(m0, 0, hdrlen, (caddr_t)&tx->wh); + m_adj(m0, hdrlen); + + error = bus_dmamap_load_mbuf_segment(ring->data_dmat, data->map, m0, segs, + 1, &nsegs, BUS_DMA_NOWAIT); + if (error != 0 && error != EFBIG) { + device_printf(sc->sc_dev, "could not map mbuf (error %d)\n", + error); + m_freem(m0); + return error; + } + if (error != 0) { + /* XXX use m_collapse */ + mnew = m_defrag(m0, M_NOWAIT); + if (mnew == NULL) { + device_printf(sc->sc_dev, + "could not defragment mbuf\n"); + m_freem(m0); + return ENOBUFS; + } + m0 = mnew; + + error = bus_dmamap_load_mbuf_segment(ring->data_dmat, data->map, + m0, segs, 1, &nsegs, BUS_DMA_NOWAIT); + if (error != 0) { + device_printf(sc->sc_dev, + "could not map mbuf (error %d)\n", error); + m_freem(m0); + return error; + } + } + + data->m = m0; + data->ni = ni; + + DPRINTFN(WPI_DEBUG_TX, ("sending data: qid=%d idx=%d len=%d nsegs=%d\n", + ring->qid, ring->cur, m0->m_pkthdr.len, nsegs)); + + /* first scatter/gather segment is used by the tx data command */ + desc->flags = htole32(WPI_PAD32(m0->m_pkthdr.len) << 28 | + (1 + nsegs) << 24); + desc->segs[0].addr = htole32(ring->cmd_dma.paddr + + ring->cur * sizeof (struct wpi_tx_cmd)); + desc->segs[0].len = htole32(4 + sizeof (struct wpi_cmd_data)); + for (i = 1; i <= nsegs; i++) { + desc->segs[i].addr = htole32(segs[i - 1].ds_addr); + desc->segs[i].len = htole32(segs[i - 1].ds_len); + } + + bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE); + bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, + BUS_DMASYNC_PREWRITE); + + ring->queued++; + + /* kick ring */ + ring->cur = (ring->cur + 1) % WPI_TX_RING_COUNT; + WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur); + + return 0; +} + +/** + * Process data waiting to be sent on the IFNET output queue + */ +static void +wpi_start(struct ifnet *ifp) +{ + struct wpi_softc *sc = ifp->if_softc; + + WPI_LOCK(sc); + wpi_start_locked(ifp); + WPI_UNLOCK(sc); +} + +static void +wpi_start_locked(struct ifnet *ifp) +{ + struct wpi_softc *sc = ifp->if_softc; + struct ieee80211_node *ni; + struct mbuf *m; + int ac; + + WPI_LOCK_ASSERT(sc); + + if ((ifp->if_flags & IFF_RUNNING) == 0) { + ifq_purge(&ifp->if_snd); + return; + } + + for (;;) { + IF_DEQUEUE(&ifp->if_snd, m); + if (m == NULL) + break; + ac = M_WME_GETAC(m); + if (sc->txq[ac].queued > sc->txq[ac].count - 8) { + /* there is no place left in this ring */ + ifq_prepend(&ifp->if_snd, m); + ifp->if_flags |= IFF_OACTIVE; + break; + } + ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; + if (wpi_tx_data(sc, m, ni, ac) != 0) { + ieee80211_free_node(ni); + ifp->if_oerrors++; + break; + } + sc->sc_tx_timer = 5; + } +} + +static int +wpi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, + const struct ieee80211_bpf_params *params) +{ + struct ieee80211com *ic = ni->ni_ic; + struct ifnet *ifp = ic->ic_ifp; + struct wpi_softc *sc = ifp->if_softc; + + /* prevent management frames from being sent if we're not ready */ + if (!(ifp->if_flags & IFF_RUNNING)) { + m_freem(m); + ieee80211_free_node(ni); + return ENETDOWN; + } + WPI_LOCK(sc); + + /* management frames go into ring 0 */ + if (sc->txq[0].queued > sc->txq[0].count - 8) { + ifp->if_flags |= IFF_OACTIVE; + m_freem(m); + WPI_UNLOCK(sc); + ieee80211_free_node(ni); + return ENOBUFS; /* XXX */ + } + + ifp->if_opackets++; + if (wpi_tx_data(sc, m, ni, 0) != 0) + goto bad; + sc->sc_tx_timer = 5; + callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc); + + WPI_UNLOCK(sc); + return 0; +bad: + ifp->if_oerrors++; + WPI_UNLOCK(sc); + ieee80211_free_node(ni); + return EIO; /* XXX */ +} + +static int +wpi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cred) +{ + struct wpi_softc *sc = ifp->if_softc; + struct ieee80211com *ic = ifp->if_l2com; + struct ifreq *ifr = (struct ifreq *) data; + int error = 0, startall = 0; + + switch (cmd) { + case SIOCSIFFLAGS: + WPI_LOCK(sc); + if ((ifp->if_flags & IFF_UP)) { + if (!(ifp->if_flags & IFF_RUNNING)) { + wpi_init_locked(sc, 0); + startall = 1; + } + } else if ((ifp->if_flags & IFF_RUNNING) || + (sc->flags & WPI_FLAG_HW_RADIO_OFF)) + wpi_stop_locked(sc); + WPI_UNLOCK(sc); + if (startall) + ieee80211_start_all(ic); + break; + case SIOCGIFMEDIA: + error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); + break; + case SIOCGIFADDR: + error = ether_ioctl(ifp, cmd, data); + break; + default: + error = EINVAL; + break; + } + return error; +} + +/* + * Extract various information from EEPROM. + */ +static void +wpi_read_eeprom(struct wpi_softc *sc, uint8_t macaddr[IEEE80211_ADDR_LEN]) +{ + int i; + + /* read the hardware capabilities, revision and SKU type */ + wpi_read_prom_data(sc, WPI_EEPROM_CAPABILITIES, &sc->cap,1); + wpi_read_prom_data(sc, WPI_EEPROM_REVISION, &sc->rev,2); + wpi_read_prom_data(sc, WPI_EEPROM_TYPE, &sc->type, 1); + + /* read the regulatory domain */ + wpi_read_prom_data(sc, WPI_EEPROM_DOMAIN, sc->domain, 4); + + /* read in the hw MAC address */ + wpi_read_prom_data(sc, WPI_EEPROM_MAC, macaddr, 6); + + /* read the list of authorized channels */ + for (i = 0; i < WPI_CHAN_BANDS_COUNT; i++) + wpi_read_eeprom_channels(sc,i); + + /* read the power level calibration info for each group */ + for (i = 0; i < WPI_POWER_GROUPS_COUNT; i++) + wpi_read_eeprom_group(sc,i); +} + +/* + * Send a command to the firmware. + */ +static int +wpi_cmd(struct wpi_softc *sc, int code, const void *buf, int size, int async) +{ + struct wpi_tx_ring *ring = &sc->cmdq; + struct wpi_tx_desc *desc; + struct wpi_tx_cmd *cmd; + +#ifdef WPI_DEBUG + if (!async) { + WPI_LOCK_ASSERT(sc); + } +#endif + + DPRINTFN(WPI_DEBUG_CMD,("wpi_cmd %d size %d async %d\n", code, size, + async)); + + if (sc->flags & WPI_FLAG_BUSY) { + device_printf(sc->sc_dev, "%s: cmd %d not sent, busy\n", + __func__, code); + return EAGAIN; + } + sc->flags|= WPI_FLAG_BUSY; + + KASSERT(size <= sizeof cmd->data, ("command %d too large: %d bytes", + code, size)); + + desc = &ring->desc[ring->cur]; + cmd = &ring->cmd[ring->cur]; + + cmd->code = code; + cmd->flags = 0; + cmd->qid = ring->qid; + cmd->idx = ring->cur; + memcpy(cmd->data, buf, size); + + desc->flags = htole32(WPI_PAD32(size) << 28 | 1 << 24); + desc->segs[0].addr = htole32(ring->cmd_dma.paddr + + ring->cur * sizeof (struct wpi_tx_cmd)); + desc->segs[0].len = htole32(4 + size); + + /* kick cmd ring */ + ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT; + WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur); + + if (async) { + sc->flags &= ~ WPI_FLAG_BUSY; + return 0; + } + + return lksleep(cmd, &sc->sc_lock, 0, "wpicmd", hz); +} + +static int +wpi_wme_update(struct ieee80211com *ic) +{ +#define WPI_EXP2(v) htole16((1 << (v)) - 1) +#define WPI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) + struct wpi_softc *sc = ic->ic_ifp->if_softc; + const struct wmeParams *wmep; + struct wpi_wme_setup wme; + int ac; + + /* don't override default WME values if WME is not actually enabled */ + if (!(ic->ic_flags & IEEE80211_F_WME)) + return 0; + + wme.flags = 0; + for (ac = 0; ac < WME_NUM_AC; ac++) { + wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; + wme.ac[ac].aifsn = wmep->wmep_aifsn; + wme.ac[ac].cwmin = WPI_EXP2(wmep->wmep_logcwmin); + wme.ac[ac].cwmax = WPI_EXP2(wmep->wmep_logcwmax); + wme.ac[ac].txop = WPI_USEC(wmep->wmep_txopLimit); + + DPRINTF(("setting WME for queue %d aifsn=%d cwmin=%d cwmax=%d " + "txop=%d\n", ac, wme.ac[ac].aifsn, wme.ac[ac].cwmin, + wme.ac[ac].cwmax, wme.ac[ac].txop)); + } + return wpi_cmd(sc, WPI_CMD_SET_WME, &wme, sizeof wme, 1); +#undef WPI_USEC +#undef WPI_EXP2 +} + +/* + * Configure h/w multi-rate retries. + */ +static int +wpi_mrr_setup(struct wpi_softc *sc) +{ + struct ifnet *ifp = sc->sc_ifp; + struct ieee80211com *ic = ifp->if_l2com; + struct wpi_mrr_setup mrr; + int i, error; + + memset(&mrr, 0, sizeof (struct wpi_mrr_setup)); + + /* CCK rates (not used with 802.11a) */ + for (i = WPI_CCK1; i <= WPI_CCK11; i++) { + mrr.rates[i].flags = 0; + mrr.rates[i].signal = wpi_ridx_to_plcp[i]; + /* fallback to the immediate lower CCK rate (if any) */ + mrr.rates[i].next = (i == WPI_CCK1) ? WPI_CCK1 : i - 1; + /* try one time at this rate before falling back to "next" */ + mrr.rates[i].ntries = 1; + } + + /* OFDM rates (not used with 802.11b) */ + for (i = WPI_OFDM6; i <= WPI_OFDM54; i++) { + mrr.rates[i].flags = 0; + mrr.rates[i].signal = wpi_ridx_to_plcp[i]; + /* fallback to the immediate lower OFDM rate (if any) */ + /* we allow fallback from OFDM/6 to CCK/2 in 11b/g mode */ + mrr.rates[i].next = (i == WPI_OFDM6) ? + ((ic->ic_curmode == IEEE80211_MODE_11A) ? + WPI_OFDM6 : WPI_CCK2) : + i - 1; + /* try one time at this rate before falling back to "next" */ + mrr.rates[i].ntries = 1; + } + + /* setup MRR for control frames */ + mrr.which = htole32(WPI_MRR_CTL); + error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0); + if (error != 0) { + device_printf(sc->sc_dev, + "could not setup MRR for control frames\n"); + return error; + } + + /* setup MRR for data frames */ + mrr.which = htole32(WPI_MRR_DATA); + error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0); + if (error != 0) { + device_printf(sc->sc_dev, + "could not setup MRR for data frames\n"); + return error; + } + + return 0; +} + +static void +wpi_set_led(struct wpi_softc *sc, uint8_t which, uint8_t off, uint8_t on) +{ + struct wpi_cmd_led led; + + led.which = which; + led.unit = htole32(100000); /* on/off in unit of 100ms */ + led.off = off; + led.on = on; + + (void)wpi_cmd(sc, WPI_CMD_SET_LED, &led, sizeof led, 1); +} + +static void +wpi_enable_tsf(struct wpi_softc *sc, struct ieee80211_node *ni) +{ + struct wpi_cmd_tsf tsf; + uint64_t val, mod; + + memset(&tsf, 0, sizeof tsf); + memcpy(&tsf.tstamp, ni->ni_tstamp.data, 8); + tsf.bintval = htole16(ni->ni_intval); + tsf.lintval = htole16(10); + + /* compute remaining time until next beacon */ + val = (uint64_t)ni->ni_intval * 1024; /* msec -> usec */ + mod = le64toh(tsf.tstamp) % val; + tsf.binitval = htole32((uint32_t)(val - mod)); + + if (wpi_cmd(sc, WPI_CMD_TSF, &tsf, sizeof tsf, 1) != 0) + device_printf(sc->sc_dev, "could not enable TSF\n"); +} + +#if 0 +/* + * Build a beacon frame that the firmware will broadcast periodically in + * IBSS or HostAP modes. + */ +static int +wpi_setup_beacon(struct wpi_softc *sc, struct ieee80211_node *ni) +{ + struct ifnet *ifp = sc->sc_ifp; + struct ieee80211com *ic = ifp->if_l2com; + struct wpi_tx_ring *ring = &sc->cmdq; + struct wpi_tx_desc *desc; + struct wpi_tx_data *data; + struct wpi_tx_cmd *cmd; + struct wpi_cmd_beacon *bcn; + struct ieee80211_beacon_offsets bo; + struct mbuf *m0; + bus_addr_t physaddr; + int error; + + desc = &ring->desc[ring->cur]; + data = &ring->data[ring->cur]; + + m0 = ieee80211_beacon_alloc(ic, ni, &bo); + if (m0 == NULL) { + device_printf(sc->sc_dev, "could not allocate beacon frame\n"); + return ENOMEM; + } + + cmd = &ring->cmd[ring->cur]; + cmd->code = WPI_CMD_SET_BEACON; + cmd->flags = 0; + cmd->qid = ring->qid; + cmd->idx = ring->cur; + + bcn = (struct wpi_cmd_beacon *)cmd->data; + memset(bcn, 0, sizeof (struct wpi_cmd_beacon)); + bcn->id = WPI_ID_BROADCAST; + bcn->ofdm_mask = 0xff; + bcn->cck_mask = 0x0f; + bcn->lifetime = htole32(WPI_LIFETIME_INFINITE); + bcn->len = htole16(m0->m_pkthdr.len); + bcn->rate = (ic->ic_curmode == IEEE80211_MODE_11A) ? + wpi_plcp_signal(12) : wpi_plcp_signal(2); + bcn->flags = htole32(WPI_TX_AUTO_SEQ | WPI_TX_INSERT_TSTAMP); + + /* save and trim IEEE802.11 header */ + m_copydata(m0, 0, sizeof (struct ieee80211_frame), (caddr_t)&bcn->wh); + m_adj(m0, sizeof (struct ieee80211_frame)); + + /* assume beacon frame is contiguous */ + error = bus_dmamap_load(ring->data_dmat, data->map, mtod(m0, void *), + m0->m_pkthdr.len, wpi_dma_map_addr, &physaddr, 0); + if (error != 0) { + device_printf(sc->sc_dev, "could not map beacon\n"); + m_freem(m0); + return error; + } + + data->m = m0; + + /* first scatter/gather segment is used by the beacon command */ + desc->flags = htole32(WPI_PAD32(m0->m_pkthdr.len) << 28 | 2 << 24); + desc->segs[0].addr = htole32(ring->cmd_dma.paddr + + ring->cur * sizeof (struct wpi_tx_cmd)); + desc->segs[0].len = htole32(4 + sizeof (struct wpi_cmd_beacon)); + desc->segs[1].addr = htole32(physaddr); + desc->segs[1].len = htole32(m0->m_pkthdr.len); + + /* kick cmd ring */ + ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT; + WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur); + + return 0; +} +#endif + +static int +wpi_auth(struct wpi_softc *sc, struct ieee80211vap *vap) +{ + struct ieee80211com *ic = vap->iv_ic; + struct ieee80211_node *ni = vap->iv_bss; + struct wpi_node_info node; + int error; + + + /* update adapter's configuration */ + sc->config.associd = 0; + sc->config.filter &= ~htole32(WPI_FILTER_BSS); + IEEE80211_ADDR_COPY(sc->config.bssid, ni->ni_bssid); + sc->config.chan = ieee80211_chan2ieee(ic, ni->ni_chan); + if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) { + sc->config.flags |= htole32(WPI_CONFIG_AUTO | + WPI_CONFIG_24GHZ); + } + if (IEEE80211_IS_CHAN_A(ni->ni_chan)) { + sc->config.cck_mask = 0; + sc->config.ofdm_mask = 0x15; + } else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) { + sc->config.cck_mask = 0x03; + sc->config.ofdm_mask = 0; + } else { + /* XXX assume 802.11b/g */ + sc->config.cck_mask = 0x0f; + sc->config.ofdm_mask = 0x15; + } + + DPRINTF(("config chan %d flags %x cck %x ofdm %x\n", sc->config.chan, + sc->config.flags, sc->config.cck_mask, sc->config.ofdm_mask)); + error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config, + sizeof (struct wpi_config), 1); + if (error != 0) { + device_printf(sc->sc_dev, "could not configure\n"); + return error; + } + + /* configuration has changed, set Tx power accordingly */ + if ((error = wpi_set_txpower(sc, ni->ni_chan, 1)) != 0) { + device_printf(sc->sc_dev, "could not set Tx power\n"); + return error; + } + + /* add default node */ + memset(&node, 0, sizeof node); + IEEE80211_ADDR_COPY(node.bssid, ni->ni_bssid); + node.id = WPI_ID_BSS; + node.rate = (ic->ic_curmode == IEEE80211_MODE_11A) ? + wpi_plcp_signal(12) : wpi_plcp_signal(2); + node.action = htole32(WPI_ACTION_SET_RATE); + node.antenna = WPI_ANTENNA_BOTH; + error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 1); + if (error != 0) + device_printf(sc->sc_dev, "could not add BSS node\n"); + + return (error); +} + +static int +wpi_run(struct wpi_softc *sc, struct ieee80211vap *vap) +{ + struct ieee80211com *ic = vap->iv_ic; + struct ieee80211_node *ni = vap->iv_bss; + int error; + + if (vap->iv_opmode == IEEE80211_M_MONITOR) { + /* link LED blinks while monitoring */ + wpi_set_led(sc, WPI_LED_LINK, 5, 5); + return 0; + } + + wpi_enable_tsf(sc, ni); + + /* update adapter's configuration */ + sc->config.associd = htole16(ni->ni_associd & ~0xc000); + /* short preamble/slot time are negotiated when associating */ + sc->config.flags &= ~htole32(WPI_CONFIG_SHPREAMBLE | + WPI_CONFIG_SHSLOT); + if (ic->ic_flags & IEEE80211_F_SHSLOT) + sc->config.flags |= htole32(WPI_CONFIG_SHSLOT); + if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) + sc->config.flags |= htole32(WPI_CONFIG_SHPREAMBLE); + sc->config.filter |= htole32(WPI_FILTER_BSS); + + /* XXX put somewhere HC_QOS_SUPPORT_ASSOC + HC_IBSS_START */ + + DPRINTF(("config chan %d flags %x\n", sc->config.chan, + sc->config.flags)); + error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config, sizeof (struct + wpi_config), 1); + if (error != 0) { + device_printf(sc->sc_dev, "could not update configuration\n"); + return error; + } + + error = wpi_set_txpower(sc, ni->ni_chan, 1); + if (error != 0) { + device_printf(sc->sc_dev, "could set txpower\n"); + return error; + } + + /* link LED always on while associated */ + wpi_set_led(sc, WPI_LED_LINK, 0, 1); + + /* start automatic rate control timer */ + callout_reset(&sc->calib_to, 60*hz, wpi_calib_timeout, sc); + + return (error); +} + +/* + * Send a scan request to the firmware. Since this command is huge, we map it + * into a mbufcluster instead of using the pre-allocated set of commands. Note, + * much of this code is similar to that in wpi_cmd but because we must manually + * construct the probe & channels, we duplicate what's needed here. XXX In the + * future, this function should be modified to use wpi_cmd to help cleanup the + * code base. + */ +static int +wpi_scan(struct wpi_softc *sc) +{ + struct ifnet *ifp = sc->sc_ifp; + struct ieee80211com *ic = ifp->if_l2com; + struct ieee80211_scan_state *ss = ic->ic_scan; + struct wpi_tx_ring *ring = &sc->cmdq; + struct wpi_tx_desc *desc; + struct wpi_tx_data *data; + struct wpi_tx_cmd *cmd; + struct wpi_scan_hdr *hdr; + struct wpi_scan_chan *chan; + struct ieee80211_frame *wh; + struct ieee80211_rateset *rs; + struct ieee80211_channel *c; + enum ieee80211_phymode mode; + uint8_t *frm; + int nrates, pktlen, error, i, nssid; + bus_addr_t physaddr; + + desc = &ring->desc[ring->cur]; + data = &ring->data[ring->cur]; + + data->m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); + if (data->m == NULL) { + device_printf(sc->sc_dev, + "could not allocate mbuf for scan command\n"); + return ENOMEM; + } + + cmd = mtod(data->m, struct wpi_tx_cmd *); + cmd->code = WPI_CMD_SCAN; + cmd->flags = 0; + cmd->qid = ring->qid; + cmd->idx = ring->cur; + + hdr = (struct wpi_scan_hdr *)cmd->data; + memset(hdr, 0, sizeof(struct wpi_scan_hdr)); + + /* + * Move to the next channel if no packets are received within 5 msecs + * after sending the probe request (this helps to reduce the duration + * of active scans). + */ + hdr->quiet = htole16(5); + hdr->threshold = htole16(1); + + if (IEEE80211_IS_CHAN_A(ic->ic_curchan)) { + /* send probe requests at 6Mbps */ + hdr->tx.rate = wpi_ridx_to_plcp[WPI_OFDM6]; + + /* Enable crc checking */ + hdr->promotion = htole16(1); + } else { + hdr->flags = htole32(WPI_CONFIG_24GHZ | WPI_CONFIG_AUTO); + /* send probe requests at 1Mbps */ + hdr->tx.rate = wpi_ridx_to_plcp[WPI_CCK1]; + } + hdr->tx.id = WPI_ID_BROADCAST; + hdr->tx.lifetime = htole32(WPI_LIFETIME_INFINITE); + hdr->tx.flags = htole32(WPI_TX_AUTO_SEQ); + + memset(hdr->scan_essids, 0, sizeof(hdr->scan_essids)); + nssid = MIN(ss->ss_nssid, WPI_SCAN_MAX_ESSIDS); + for (i = 0; i < nssid; i++) { + hdr->scan_essids[i].id = IEEE80211_ELEMID_SSID; + hdr->scan_essids[i].esslen = MIN(ss->ss_ssid[i].len, 32); + memcpy(hdr->scan_essids[i].essid, ss->ss_ssid[i].ssid, + hdr->scan_essids[i].esslen); +#ifdef WPI_DEBUG + if (wpi_debug & WPI_DEBUG_SCANNING) { + kprintf("Scanning Essid: "); + ieee80211_print_essid(hdr->scan_essids[i].essid, + hdr->scan_essids[i].esslen); + kprintf("\n"); + } +#endif + } + + /* + * Build a probe request frame. Most of the following code is a + * copy & paste of what is done in net80211. + */ + wh = (struct ieee80211_frame *)&hdr->scan_essids[4]; + wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT | + IEEE80211_FC0_SUBTYPE_PROBE_REQ; + wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; + IEEE80211_ADDR_COPY(wh->i_addr1, ifp->if_broadcastaddr); + IEEE80211_ADDR_COPY(wh->i_addr2, IF_LLADDR(ifp)); + IEEE80211_ADDR_COPY(wh->i_addr3, ifp->if_broadcastaddr); + *(u_int16_t *)&wh->i_dur[0] = 0; /* filled by h/w */ + *(u_int16_t *)&wh->i_seq[0] = 0; /* filled by h/w */ + + frm = (uint8_t *)(wh + 1); + + /* add essid IE, the hardware will fill this in for us */ + *frm++ = IEEE80211_ELEMID_SSID; + *frm++ = 0; + + mode = ieee80211_chan2mode(ic->ic_curchan); + rs = &ic->ic_sup_rates[mode]; + + /* add supported rates IE */ + *frm++ = IEEE80211_ELEMID_RATES; + nrates = rs->rs_nrates; + if (nrates > IEEE80211_RATE_SIZE) + nrates = IEEE80211_RATE_SIZE; + *frm++ = nrates; + memcpy(frm, rs->rs_rates, nrates); + frm += nrates; + + /* add supported xrates IE */ + if (rs->rs_nrates > IEEE80211_RATE_SIZE) { + nrates = rs->rs_nrates - IEEE80211_RATE_SIZE; + *frm++ = IEEE80211_ELEMID_XRATES; + *frm++ = nrates; + memcpy(frm, rs->rs_rates + IEEE80211_RATE_SIZE, nrates); + frm += nrates; + } + + /* setup length of probe request */ + hdr->tx.len = htole16(frm - (uint8_t *)wh); + + /* + * Construct information about the channel that we + * want to scan. The firmware expects this to be directly + * after the scan probe request + */ + c = ic->ic_curchan; + chan = (struct wpi_scan_chan *)frm; + chan->chan = ieee80211_chan2ieee(ic, c); + chan->flags = 0; + if (!(c->ic_flags & IEEE80211_CHAN_PASSIVE)) { + chan->flags |= WPI_CHAN_ACTIVE; + if (nssid != 0) + chan->flags |= WPI_CHAN_DIRECT; + } + chan->gain_dsp = 0x6e; /* Default level */ + if (IEEE80211_IS_CHAN_5GHZ(c)) { + chan->active = htole16(10); + chan->passive = htole16(ss->ss_maxdwell); + chan->gain_radio = 0x3b; + } else { + chan->active = htole16(20); + chan->passive = htole16(ss->ss_maxdwell); + chan->gain_radio = 0x28; + } + + DPRINTFN(WPI_DEBUG_SCANNING, + ("Scanning %u Passive: %d\n", + chan->chan, + c->ic_flags & IEEE80211_CHAN_PASSIVE)); + + hdr->nchan++; + chan++; + + frm += sizeof (struct wpi_scan_chan); +#if 0 + // XXX All Channels.... + for (c = &ic->ic_channels[1]; + c <= &ic->ic_channels[IEEE80211_CHAN_MAX]; c++) { + if ((c->ic_flags & ic->ic_curchan->ic_flags) != ic->ic_curchan->ic_flags) + continue; + + chan->chan = ieee80211_chan2ieee(ic, c); + chan->flags = 0; + if (!(c->ic_flags & IEEE80211_CHAN_PASSIVE)) { + chan->flags |= WPI_CHAN_ACTIVE; + if (ic->ic_des_ssid[0].len != 0) + chan->flags |= WPI_CHAN_DIRECT; + } + chan->gain_dsp = 0x6e; /* Default level */ + if (IEEE80211_IS_CHAN_5GHZ(c)) { + chan->active = htole16(10); + chan->passive = htole16(110); + chan->gain_radio = 0x3b; + } else { + chan->active = htole16(20); + chan->passive = htole16(120); + chan->gain_radio = 0x28; + } + + DPRINTFN(WPI_DEBUG_SCANNING, + ("Scanning %u Passive: %d\n", + chan->chan, + c->ic_flags & IEEE80211_CHAN_PASSIVE)); + + hdr->nchan++; + chan++; + + frm += sizeof (struct wpi_scan_chan); + } +#endif + + hdr->len = htole16(frm - (uint8_t *)hdr); + pktlen = frm - (uint8_t *)cmd; + + error = bus_dmamap_load(ring->data_dmat, data->map, cmd, pktlen, + wpi_dma_map_addr, &physaddr, BUS_DMA_NOWAIT); + if (error != 0) { + device_printf(sc->sc_dev, "could not map scan command\n"); + m_freem(data->m); + data->m = NULL; + return error; + } + + desc->flags = htole32(WPI_PAD32(pktlen) << 28 | 1 << 24); + desc->segs[0].addr = htole32(physaddr); + desc->segs[0].len = htole32(pktlen); + + bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, + BUS_DMASYNC_PREWRITE); + bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE); + + /* kick cmd ring */ + ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT; + WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur); + + sc->sc_scan_timer = 5; + return 0; /* will be notified async. of failure/success */ +} + +/** + * Configure the card to listen to a particular channel, this transisions the + * card in to being able to receive frames from remote devices. + */ +static int +wpi_config(struct wpi_softc *sc) +{ + struct ifnet *ifp = sc->sc_ifp; + struct ieee80211com *ic = ifp->if_l2com; + struct wpi_power power; + struct wpi_bluetooth bluetooth; + struct wpi_node_info node; + int error; + + /* set power mode */ + memset(&power, 0, sizeof power); + power.flags = htole32(WPI_POWER_CAM|0x8); + error = wpi_cmd(sc, WPI_CMD_SET_POWER_MODE, &power, sizeof power, 0); + if (error != 0) { + device_printf(sc->sc_dev, "could not set power mode\n"); + return error; + } + + /* configure bluetooth coexistence */ + memset(&bluetooth, 0, sizeof bluetooth); + bluetooth.flags = 3; + bluetooth.lead = 0xaa; + bluetooth.kill = 1; + error = wpi_cmd(sc, WPI_CMD_BLUETOOTH, &bluetooth, sizeof bluetooth, + 0); + if (error != 0) { + device_printf(sc->sc_dev, + "could not configure bluetooth coexistence\n"); + return error; + } + + /* configure adapter */ + memset(&sc->config, 0, sizeof (struct wpi_config)); + IEEE80211_ADDR_COPY(sc->config.myaddr, IF_LLADDR(ifp)); + /*set default channel*/ + sc->config.chan = htole16(ieee80211_chan2ieee(ic, ic->ic_curchan)); + sc->config.flags = htole32(WPI_CONFIG_TSF); + if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { + sc->config.flags |= htole32(WPI_CONFIG_AUTO | + WPI_CONFIG_24GHZ); + } + sc->config.filter = 0; + switch (ic->ic_opmode) { + case IEEE80211_M_STA: + case IEEE80211_M_WDS: /* No know setup, use STA for now */ + sc->config.mode = WPI_MODE_STA; + sc->config.filter |= htole32(WPI_FILTER_MULTICAST); + break; + case IEEE80211_M_IBSS: + case IEEE80211_M_AHDEMO: + sc->config.mode = WPI_MODE_IBSS; + sc->config.filter |= htole32(WPI_FILTER_BEACON | + WPI_FILTER_MULTICAST); + break; + case IEEE80211_M_HOSTAP: + sc->config.mode = WPI_MODE_HOSTAP; + break; + case IEEE80211_M_MONITOR: + sc->config.mode = WPI_MODE_MONITOR; + sc->config.filter |= htole32(WPI_FILTER_MULTICAST | + WPI_FILTER_CTL | WPI_FILTER_PROMISC); + break; + default: + device_printf(sc->sc_dev, "unknown opmode %d\n", ic->ic_opmode); + return EINVAL; + } + sc->config.cck_mask = 0x0f; /* not yet negotiated */ + sc->config.ofdm_mask = 0xff; /* not yet negotiated */ + error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config, + sizeof (struct wpi_config), 0); + if (error != 0) { + device_printf(sc->sc_dev, "configure command failed\n"); + return error; + } + + /* configuration has changed, set Tx power accordingly */ + if ((error = wpi_set_txpower(sc, ic->ic_curchan, 0)) != 0) { + device_printf(sc->sc_dev, "could not set Tx power\n"); + return error; + } + + /* add broadcast node */ + memset(&node, 0, sizeof node); + IEEE80211_ADDR_COPY(node.bssid, ifp->if_broadcastaddr); + node.id = WPI_ID_BROADCAST; + node.rate = wpi_plcp_signal(2); + error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 0); + if (error != 0) { + device_printf(sc->sc_dev, "could not add broadcast node\n"); + return error; + } + + /* Setup rate scalling */ + error = wpi_mrr_setup(sc); + if (error != 0) { + device_printf(sc->sc_dev, "could not setup MRR\n"); + return error; + } + + return 0; +} + +static void +wpi_stop_master(struct wpi_softc *sc) +{ + uint32_t tmp; + int ntries; + + DPRINTFN(WPI_DEBUG_HW,("Disabling Firmware execution\n")); + + tmp = WPI_READ(sc, WPI_RESET); + WPI_WRITE(sc, WPI_RESET, tmp | WPI_STOP_MASTER | WPI_NEVO_RESET); + + tmp = WPI_READ(sc, WPI_GPIO_CTL); + if ((tmp & WPI_GPIO_PWR_STATUS) == WPI_GPIO_PWR_SLEEP) + return; /* already asleep */ + + for (ntries = 0; ntries < 100; ntries++) { + if (WPI_READ(sc, WPI_RESET) & WPI_MASTER_DISABLED) + break; + DELAY(10); + } + if (ntries == 100) { + device_printf(sc->sc_dev, "timeout waiting for master\n"); + } +} + +static int +wpi_power_up(struct wpi_softc *sc) +{ + uint32_t tmp; + int ntries; + + wpi_mem_lock(sc); + tmp = wpi_mem_read(sc, WPI_MEM_POWER); + wpi_mem_write(sc, WPI_MEM_POWER, tmp & ~0x03000000); + wpi_mem_unlock(sc); + + for (ntries = 0; ntries < 5000; ntries++) { + if (WPI_READ(sc, WPI_GPIO_STATUS) & WPI_POWERED) + break; + DELAY(10); + } + if (ntries == 5000) { + device_printf(sc->sc_dev, + "timeout waiting for NIC to power up\n"); + return ETIMEDOUT; + } + return 0; +} + +static int +wpi_reset(struct wpi_softc *sc) +{ + uint32_t tmp; + int ntries; + + DPRINTFN(WPI_DEBUG_HW, + ("Resetting the card - clearing any uploaded firmware\n")); + + /* clear any pending interrupts */ + WPI_WRITE(sc, WPI_INTR, 0xffffffff); + + tmp = WPI_READ(sc, WPI_PLL_CTL); + WPI_WRITE(sc, WPI_PLL_CTL, tmp | WPI_PLL_INIT); + + tmp = WPI_READ(sc, WPI_CHICKEN); + WPI_WRITE(sc, WPI_CHICKEN, tmp | WPI_CHICKEN_RXNOLOS); + + tmp = WPI_READ(sc, WPI_GPIO_CTL); + WPI_WRITE(sc, WPI_GPIO_CTL, tmp | WPI_GPIO_INIT); + + /* wait for clock stabilization */ + for (ntries = 0; ntries < 25000; ntries++) { + if (WPI_READ(sc, WPI_GPIO_CTL) & WPI_GPIO_CLOCK) + break; + DELAY(10); + } + if (ntries == 25000) { + device_printf(sc->sc_dev, + "timeout waiting for clock stabilization\n"); + return ETIMEDOUT; + } + + /* initialize EEPROM */ + tmp = WPI_READ(sc, WPI_EEPROM_STATUS); + + if ((tmp & WPI_EEPROM_VERSION) == 0) { + device_printf(sc->sc_dev, "EEPROM not found\n"); + return EIO; + } + WPI_WRITE(sc, WPI_EEPROM_STATUS, tmp & ~WPI_EEPROM_LOCKED); + + return 0; +} + +static void +wpi_hw_config(struct wpi_softc *sc) +{ + uint32_t rev, hw; + + /* voodoo from the Linux "driver".. */ + hw = WPI_READ(sc, WPI_HWCONFIG); + + rev = pci_read_config(sc->sc_dev, PCIR_REVID, 1); + if ((rev & 0xc0) == 0x40) + hw |= WPI_HW_ALM_MB; + else if (!(rev & 0x80)) + hw |= WPI_HW_ALM_MM; + + if (sc->cap == 0x80) + hw |= WPI_HW_SKU_MRC; + + hw &= ~WPI_HW_REV_D; + if ((le16toh(sc->rev) & 0xf0) == 0xd0) + hw |= WPI_HW_REV_D; + + if (sc->type > 1) + hw |= WPI_HW_TYPE_B; + + WPI_WRITE(sc, WPI_HWCONFIG, hw); +} + +static void +wpi_rfkill_resume(struct wpi_softc *sc) +{ + struct ifnet *ifp = sc->sc_ifp; + struct ieee80211com *ic = ifp->if_l2com; + struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); + int ntries; + + /* enable firmware again */ + WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF); + WPI_WRITE(sc, WPI_UCODE_CLR, WPI_DISABLE_CMD); + + /* wait for thermal sensors to calibrate */ + for (ntries = 0; ntries < 1000; ntries++) { + if ((sc->temp = (int)WPI_READ(sc, WPI_TEMPERATURE)) != 0) + break; + DELAY(10); + } + + if (ntries == 1000) { + device_printf(sc->sc_dev, + "timeout waiting for thermal calibration\n"); + WPI_UNLOCK(sc); + return; + } + DPRINTFN(WPI_DEBUG_TEMP,("temperature %d\n", sc->temp)); + + if (wpi_config(sc) != 0) { + device_printf(sc->sc_dev, "device config failed\n"); + WPI_UNLOCK(sc); + return; + } + + ifp->if_flags &= ~IFF_OACTIVE; + ifp->if_flags |= IFF_RUNNING; + sc->flags &= ~WPI_FLAG_HW_RADIO_OFF; + + if (vap != NULL) { + if ((ic->ic_flags & IEEE80211_F_SCAN) == 0) { + if (vap->iv_opmode != IEEE80211_M_MONITOR) { + ieee80211_beacon_miss(ic); + wpi_set_led(sc, WPI_LED_LINK, 0, 1); + } else + wpi_set_led(sc, WPI_LED_LINK, 5, 5); + } else { + ieee80211_scan_next(vap); + wpi_set_led(sc, WPI_LED_LINK, 20, 2); + } + } + + callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc); +} + +static void +wpi_init_locked(struct wpi_softc *sc, int force) +{ + struct ifnet *ifp = sc->sc_ifp; + uint32_t tmp; + int ntries, qid; + + wpi_stop_locked(sc); + (void)wpi_reset(sc); + + wpi_mem_lock(sc); + wpi_mem_write(sc, WPI_MEM_CLOCK1, 0xa00); + DELAY(20); + tmp = wpi_mem_read(sc, WPI_MEM_PCIDEV); + wpi_mem_write(sc, WPI_MEM_PCIDEV, tmp | 0x800); + wpi_mem_unlock(sc); + + (void)wpi_power_up(sc); + wpi_hw_config(sc); + + /* init Rx ring */ + wpi_mem_lock(sc); + WPI_WRITE(sc, WPI_RX_BASE, sc->rxq.desc_dma.paddr); + WPI_WRITE(sc, WPI_RX_RIDX_PTR, sc->shared_dma.paddr + + offsetof(struct wpi_shared, next)); + WPI_WRITE(sc, WPI_RX_WIDX, (WPI_RX_RING_COUNT - 1) & ~7); + WPI_WRITE(sc, WPI_RX_CONFIG, 0xa9601010); + wpi_mem_unlock(sc); + + /* init Tx rings */ + wpi_mem_lock(sc); + wpi_mem_write(sc, WPI_MEM_MODE, 2); /* bypass mode */ + wpi_mem_write(sc, WPI_MEM_RA, 1); /* enable RA0 */ + wpi_mem_write(sc, WPI_MEM_TXCFG, 0x3f); /* enable all 6 Tx rings */ + wpi_mem_write(sc, WPI_MEM_BYPASS1, 0x10000); + wpi_mem_write(sc, WPI_MEM_BYPASS2, 0x30002); + wpi_mem_write(sc, WPI_MEM_MAGIC4, 4); + wpi_mem_write(sc, WPI_MEM_MAGIC5, 5); + + WPI_WRITE(sc, WPI_TX_BASE_PTR, sc->shared_dma.paddr); + WPI_WRITE(sc, WPI_MSG_CONFIG, 0xffff05a5); + + for (qid = 0; qid < 6; qid++) { + WPI_WRITE(sc, WPI_TX_CTL(qid), 0); + WPI_WRITE(sc, WPI_TX_BASE(qid), 0); + WPI_WRITE(sc, WPI_TX_CONFIG(qid), 0x80200008); + } + wpi_mem_unlock(sc); + + /* clear "radio off" and "disable command" bits (reversed logic) */ + WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF); + WPI_WRITE(sc, WPI_UCODE_CLR, WPI_DISABLE_CMD); + sc->flags &= ~WPI_FLAG_HW_RADIO_OFF; + + /* clear any pending interrupts */ + WPI_WRITE(sc, WPI_INTR, 0xffffffff); + + /* enable interrupts */ + WPI_WRITE(sc, WPI_MASK, WPI_INTR_MASK); + + WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF); + WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF); + + if ((wpi_load_firmware(sc)) != 0) { + device_printf(sc->sc_dev, + "A problem occurred loading the firmware to the driver\n"); + return; + } + + /* At this point the firmware is up and running. If the hardware + * RF switch is turned off thermal calibration will fail, though + * the card is still happy to continue to accept commands, catch + * this case and schedule a task to watch for it to be turned on. + */ + wpi_mem_lock(sc); + tmp = wpi_mem_read(sc, WPI_MEM_HW_RADIO_OFF); + wpi_mem_unlock(sc); + + if (!(tmp & 0x1)) { + sc->flags |= WPI_FLAG_HW_RADIO_OFF; + device_printf(sc->sc_dev,"Radio Transmitter is switched off\n"); + goto out; + } + + /* wait for thermal sensors to calibrate */ + for (ntries = 0; ntries < 1000; ntries++) { + if ((sc->temp = (int)WPI_READ(sc, WPI_TEMPERATURE)) != 0) + break; + DELAY(10); + } + + if (ntries == 1000) { + device_printf(sc->sc_dev, + "timeout waiting for thermal sensors calibration\n"); + return; + } + DPRINTFN(WPI_DEBUG_TEMP,("temperature %d\n", sc->temp)); + + if (wpi_config(sc) != 0) { + device_printf(sc->sc_dev, "device config failed\n"); + return; + } + + ifp->if_flags &= ~IFF_OACTIVE; + ifp->if_flags |= IFF_RUNNING; +out: + callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc); +} + +static void +wpi_init(void *arg) +{ + struct wpi_softc *sc = arg; + struct ifnet *ifp = sc->sc_ifp; + struct ieee80211com *ic = ifp->if_l2com; + + WPI_LOCK(sc); + wpi_init_locked(sc, 0); + WPI_UNLOCK(sc); + + if (ifp->if_flags & IFF_RUNNING) + ieee80211_start_all(ic); /* start all vaps */ +} + +static void +wpi_stop_locked(struct wpi_softc *sc) +{ + struct ifnet *ifp = sc->sc_ifp; + uint32_t tmp; + int ac; + + sc->sc_tx_timer = 0; + sc->sc_scan_timer = 0; + ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); + sc->flags &= ~WPI_FLAG_HW_RADIO_OFF; + callout_stop(&sc->watchdog_to); + callout_stop(&sc->calib_to); + + + /* disable interrupts */ + WPI_WRITE(sc, WPI_MASK, 0); + WPI_WRITE(sc, WPI_INTR, WPI_INTR_MASK); + WPI_WRITE(sc, WPI_INTR_STATUS, 0xff); + WPI_WRITE(sc, WPI_INTR_STATUS, 0x00070000); + + wpi_mem_lock(sc); + wpi_mem_write(sc, WPI_MEM_MODE, 0); + wpi_mem_unlock(sc); + + /* reset all Tx rings */ + for (ac = 0; ac < 4; ac++) + wpi_reset_tx_ring(sc, &sc->txq[ac]); + wpi_reset_tx_ring(sc, &sc->cmdq); + + /* reset Rx ring */ + wpi_reset_rx_ring(sc, &sc->rxq); + + wpi_mem_lock(sc); + wpi_mem_write(sc, WPI_MEM_CLOCK2, 0x200); + wpi_mem_unlock(sc); + + DELAY(5); + + wpi_stop_master(sc); + + tmp = WPI_READ(sc, WPI_RESET); + WPI_WRITE(sc, WPI_RESET, tmp | WPI_SW_RESET); + sc->flags &= ~WPI_FLAG_BUSY; +} + +static void +wpi_stop(struct wpi_softc *sc) +{ + WPI_LOCK(sc); + wpi_stop_locked(sc); + WPI_UNLOCK(sc); +} + +static void +wpi_newassoc(struct ieee80211_node *ni, int isnew) +{ + /* XXX move */ + ieee80211_ratectl_node_init(ni); +} + +static void +wpi_calib_timeout(void *arg) +{ + struct wpi_softc *sc = arg; + struct ifnet *ifp = sc->sc_ifp; + struct ieee80211com *ic = ifp->if_l2com; + struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); + int temp; + + if (vap->iv_state != IEEE80211_S_RUN) + return; + + /* update sensor data */ + temp = (int)WPI_READ(sc, WPI_TEMPERATURE); + DPRINTFN(WPI_DEBUG_TEMP,("Temp in calibration is: %d\n", temp)); + + wpi_power_calibration(sc, temp); + + callout_reset(&sc->calib_to, 60*hz, wpi_calib_timeout, sc); +} + +/* + * This function is called periodically (every 60 seconds) to adjust output + * power to temperature changes. + */ +static void +wpi_power_calibration(struct wpi_softc *sc, int temp) +{ + struct ifnet *ifp = sc->sc_ifp; + struct ieee80211com *ic = ifp->if_l2com; + struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); + + /* sanity-check read value */ + if (temp < -260 || temp > 25) { + /* this can't be correct, ignore */ + DPRINTFN(WPI_DEBUG_TEMP, + ("out-of-range temperature reported: %d\n", temp)); + return; + } + + DPRINTFN(WPI_DEBUG_TEMP,("temperature %d->%d\n", sc->temp, temp)); + + /* adjust Tx power if need be */ + if (abs(temp - sc->temp) <= 6) + return; + + sc->temp = temp; + + if (wpi_set_txpower(sc, vap->iv_bss->ni_chan, 1) != 0) { + /* just warn, too bad for the automatic calibration... */ + device_printf(sc->sc_dev,"could not adjust Tx power\n"); + } +} + +/** + * Read the eeprom to find out what channels are valid for the given + * band and update net80211 with what we find. + */ +static void +wpi_read_eeprom_channels(struct wpi_softc *sc, int n) +{ + struct ifnet *ifp = sc->sc_ifp; + struct ieee80211com *ic = ifp->if_l2com; + const struct wpi_chan_band *band = &wpi_bands[n]; + struct wpi_eeprom_chan channels[WPI_MAX_CHAN_PER_BAND]; + struct ieee80211_channel *c; + int chan, i, passive; + + wpi_read_prom_data(sc, band->addr, channels, + band->nchan * sizeof (struct wpi_eeprom_chan)); + + for (i = 0; i < band->nchan; i++) { + if (!(channels[i].flags & WPI_EEPROM_CHAN_VALID)) { + DPRINTFN(WPI_DEBUG_HW, + ("Channel Not Valid: %d, band %d\n", + band->chan[i],n)); + continue; + } + + passive = 0; + chan = band->chan[i]; + c = &ic->ic_channels[ic->ic_nchans++]; + + /* is active scan allowed on this channel? */ + if (!(channels[i].flags & WPI_EEPROM_CHAN_ACTIVE)) { + passive = IEEE80211_CHAN_PASSIVE; + } + + if (n == 0) { /* 2GHz band */ + c->ic_ieee = chan; + c->ic_freq = ieee80211_ieee2mhz(chan, + IEEE80211_CHAN_2GHZ); + c->ic_flags = IEEE80211_CHAN_B | passive; + + c = &ic->ic_channels[ic->ic_nchans++]; + c->ic_ieee = chan; + c->ic_freq = ieee80211_ieee2mhz(chan, + IEEE80211_CHAN_2GHZ); + c->ic_flags = IEEE80211_CHAN_G | passive; + + } else { /* 5GHz band */ + /* + * Some 3945ABG adapters support channels 7, 8, 11 + * and 12 in the 2GHz *and* 5GHz bands. + * Because of limitations in our net80211(9) stack, + * we can't support these channels in 5GHz band. + * XXX not true; just need to map to proper frequency + */ + if (chan <= 14) + continue; + + c->ic_ieee = chan; + c->ic_freq = ieee80211_ieee2mhz(chan, + IEEE80211_CHAN_5GHZ); + c->ic_flags = IEEE80211_CHAN_A | passive; + } + + /* save maximum allowed power for this channel */ + sc->maxpwr[chan] = channels[i].maxpwr; + +#if 0 + // XXX We can probably use this an get rid of maxpwr - ben 20070617 + ic->ic_channels[chan].ic_maxpower = channels[i].maxpwr; + //ic->ic_channels[chan].ic_minpower... + //ic->ic_channels[chan].ic_maxregtxpower... +#endif + + DPRINTF(("adding chan %d (%dMHz) flags=0x%x maxpwr=%d" + " passive=%d, offset %d\n", chan, c->ic_freq, + channels[i].flags, sc->maxpwr[chan], + (c->ic_flags & IEEE80211_CHAN_PASSIVE) != 0, + ic->ic_nchans)); + } +} + +static void +wpi_read_eeprom_group(struct wpi_softc *sc, int n) +{ + struct wpi_power_group *group = &sc->groups[n]; + struct wpi_eeprom_group rgroup; + int i; + + wpi_read_prom_data(sc, WPI_EEPROM_POWER_GRP + n * 32, &rgroup, + sizeof rgroup); + + /* save power group information */ + group->chan = rgroup.chan; + group->maxpwr = rgroup.maxpwr; + /* temperature at which the samples were taken */ + group->temp = (int16_t)le16toh(rgroup.temp); + + DPRINTF(("power group %d: chan=%d maxpwr=%d temp=%d\n", n, + group->chan, group->maxpwr, group->temp)); + + for (i = 0; i < WPI_SAMPLES_COUNT; i++) { + group->samples[i].index = rgroup.samples[i].index; + group->samples[i].power = rgroup.samples[i].power; + + DPRINTF(("\tsample %d: index=%d power=%d\n", i, + group->samples[i].index, group->samples[i].power)); + } +} + +/* + * Update Tx power to match what is defined for channel `c'. + */ +static int +wpi_set_txpower(struct wpi_softc *sc, struct ieee80211_channel *c, int async) +{ + struct ifnet *ifp = sc->sc_ifp; + struct ieee80211com *ic = ifp->if_l2com; + struct wpi_power_group *group; + struct wpi_cmd_txpower txpower; + u_int chan; + int i; + + /* get channel number */ + chan = ieee80211_chan2ieee(ic, c); + + /* find the power group to which this channel belongs */ + if (IEEE80211_IS_CHAN_5GHZ(c)) { + for (group = &sc->groups[1]; group < &sc->groups[4]; group++) + if (chan <= group->chan) + break; + } else + group = &sc->groups[0]; + + memset(&txpower, 0, sizeof txpower); + txpower.band = IEEE80211_IS_CHAN_5GHZ(c) ? 0 : 1; + txpower.channel = htole16(chan); + + /* set Tx power for all OFDM and CCK rates */ + for (i = 0; i <= 11 ; i++) { + /* retrieve Tx power for this channel/rate combination */ + int idx = wpi_get_power_index(sc, group, c, + wpi_ridx_to_rate[i]); + + txpower.rates[i].rate = wpi_ridx_to_plcp[i]; + + if (IEEE80211_IS_CHAN_5GHZ(c)) { + txpower.rates[i].gain_radio = wpi_rf_gain_5ghz[idx]; + txpower.rates[i].gain_dsp = wpi_dsp_gain_5ghz[idx]; + } else { + txpower.rates[i].gain_radio = wpi_rf_gain_2ghz[idx]; + txpower.rates[i].gain_dsp = wpi_dsp_gain_2ghz[idx]; + } + DPRINTFN(WPI_DEBUG_TEMP,("chan %d/rate %d: power index %d\n", + chan, wpi_ridx_to_rate[i], idx)); + } + + return wpi_cmd(sc, WPI_CMD_TXPOWER, &txpower, sizeof txpower, async); +} + +/* + * Determine Tx power index for a given channel/rate combination. + * This takes into account the regulatory information from EEPROM and the + * current temperature. + */ +static int +wpi_get_power_index(struct wpi_softc *sc, struct wpi_power_group *group, + struct ieee80211_channel *c, int rate) +{ +/* fixed-point arithmetic division using a n-bit fractional part */ +#define fdivround(a, b, n) \ + ((((1 << n) * (a)) / (b) + (1 << n) / 2) / (1 << n)) + +/* linear interpolation */ +#define interpolate(x, x1, y1, x2, y2, n) \ + ((y1) + fdivround(((x) - (x1)) * ((y2) - (y1)), (x2) - (x1), n)) + + struct ifnet *ifp = sc->sc_ifp; + struct ieee80211com *ic = ifp->if_l2com; + struct wpi_power_sample *sample; + int pwr, idx; + u_int chan; + + /* get channel number */ + chan = ieee80211_chan2ieee(ic, c); + + /* default power is group's maximum power - 3dB */ + pwr = group->maxpwr / 2; + + /* decrease power for highest OFDM rates to reduce distortion */ + switch (rate) { + case 72: /* 36Mb/s */ + pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 0 : 5; + break; + case 96: /* 48Mb/s */ + pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 7 : 10; + break; + case 108: /* 54Mb/s */ + pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 9 : 12; + break; + } + + /* never exceed channel's maximum allowed Tx power */ + pwr = min(pwr, sc->maxpwr[chan]); + + /* retrieve power index into gain tables from samples */ + for (sample = group->samples; sample < &group->samples[3]; sample++) + if (pwr > sample[1].power) + break; + /* fixed-point linear interpolation using a 19-bit fractional part */ + idx = interpolate(pwr, sample[0].power, sample[0].index, + sample[1].power, sample[1].index, 19); + + /* + * Adjust power index based on current temperature + * - if colder than factory-calibrated: decreate output power + * - if warmer than factory-calibrated: increase output power + */ + idx -= (sc->temp - group->temp) * 11 / 100; + + /* decrease power for CCK rates (-5dB) */ + if (!WPI_RATE_IS_OFDM(rate)) + idx += 10; + + /* keep power index in a valid range */ + if (idx < 0) + return 0; + if (idx > WPI_MAX_PWR_INDEX) + return WPI_MAX_PWR_INDEX; + return idx; + +#undef interpolate +#undef fdivround +} + +/** + * Called by net80211 framework to indicate that a scan + * is starting. This function doesn't actually do the scan, + * wpi_scan_curchan starts things off. This function is more + * of an early warning from the framework we should get ready + * for the scan. + */ +static void +wpi_scan_start(struct ieee80211com *ic) +{ + struct ifnet *ifp = ic->ic_ifp; + struct wpi_softc *sc = ifp->if_softc; + + WPI_LOCK(sc); + wpi_set_led(sc, WPI_LED_LINK, 20, 2); + WPI_UNLOCK(sc); +} + +/** + * Called by the net80211 framework, indicates that the + * scan has ended. If there is a scan in progress on the card + * then it should be aborted. + */ +static void +wpi_scan_end(struct ieee80211com *ic) +{ + /* XXX ignore */ +} + +/** + * Called by the net80211 framework to indicate to the driver + * that the channel should be changed + */ +static void +wpi_set_channel(struct ieee80211com *ic) +{ + struct ifnet *ifp = ic->ic_ifp; + struct wpi_softc *sc = ifp->if_softc; + int error; + + /* + * Only need to set the channel in Monitor mode. AP scanning and auth + * are already taken care of by their respective firmware commands. + */ + if (ic->ic_opmode == IEEE80211_M_MONITOR) { + error = wpi_config(sc); + if (error != 0) + device_printf(sc->sc_dev, + "error %d settting channel\n", error); + } +} + +/** + * Called by net80211 to indicate that we need to scan the current + * channel. The channel is previously be set via the wpi_set_channel + * callback. + */ +static void +wpi_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell) +{ + struct ieee80211vap *vap = ss->ss_vap; + struct ifnet *ifp = vap->iv_ic->ic_ifp; + struct wpi_softc *sc = ifp->if_softc; + + WPI_LOCK(sc); + if (wpi_scan(sc)) + ieee80211_cancel_scan(vap); + WPI_UNLOCK(sc); +} + +/** + * Called by the net80211 framework to indicate + * the minimum dwell time has been met, terminate the scan. + * We don't actually terminate the scan as the firmware will notify + * us when it's finished and we have no way to interrupt it. + */ +static void +wpi_scan_mindwell(struct ieee80211_scan_state *ss) +{ + /* NB: don't try to abort scan; wait for firmware to finish */ +} + +static void +wpi_hwreset(void *arg, int pending) +{ + struct wpi_softc *sc = arg; + + WPI_LOCK(sc); + wpi_init_locked(sc, 0); + WPI_UNLOCK(sc); +} + +static void +wpi_rfreset(void *arg, int pending) +{ + struct wpi_softc *sc = arg; + + WPI_LOCK(sc); + wpi_rfkill_resume(sc); + WPI_UNLOCK(sc); +} + +/* + * Allocate DMA-safe memory for firmware transfer. + */ +static int +wpi_alloc_fwmem(struct wpi_softc *sc) +{ + /* allocate enough contiguous space to store text and data */ + return wpi_dma_contig_alloc(sc, &sc->fw_dma, NULL, + WPI_FW_MAIN_TEXT_MAXSZ + WPI_FW_MAIN_DATA_MAXSZ, 1, + BUS_DMA_NOWAIT); +} + +static void +wpi_free_fwmem(struct wpi_softc *sc) +{ + wpi_dma_contig_free(&sc->fw_dma); +} + +/** + * Called every second, wpi_watchdog used by the watch dog timer + * to check that the card is still alive + */ +static void +wpi_watchdog(void *arg) +{ + struct wpi_softc *sc = arg; + struct ifnet *ifp = sc->sc_ifp; + struct ieee80211com *ic = ifp->if_l2com; + uint32_t tmp; + + DPRINTFN(WPI_DEBUG_WATCHDOG,("Watchdog: tick\n")); + + if (sc->flags & WPI_FLAG_HW_RADIO_OFF) { + /* No need to lock firmware memory */ + tmp = wpi_mem_read(sc, WPI_MEM_HW_RADIO_OFF); + + if ((tmp & 0x1) == 0) { + /* Radio kill switch is still off */ + callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc); + return; + } + + device_printf(sc->sc_dev, "Hardware Switch Enabled\n"); + ieee80211_runtask(ic, &sc->sc_radiotask); + return; + } + + if (sc->sc_tx_timer > 0) { + if (--sc->sc_tx_timer == 0) { + device_printf(sc->sc_dev,"device timeout\n"); + ifp->if_oerrors++; + ieee80211_runtask(ic, &sc->sc_restarttask); + } + } + if (sc->sc_scan_timer > 0) { + struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); + if (--sc->sc_scan_timer == 0 && vap != NULL) { + device_printf(sc->sc_dev,"scan timeout\n"); + ieee80211_cancel_scan(vap); + ieee80211_runtask(ic, &sc->sc_restarttask); + } + } + + if (ifp->if_flags & IFF_RUNNING) + callout_reset(&sc->watchdog_to, hz, wpi_watchdog, sc); +} + +#ifdef WPI_DEBUG +static const char *wpi_cmd_str(int cmd) +{ + switch (cmd) { + case WPI_DISABLE_CMD: return "WPI_DISABLE_CMD"; + case WPI_CMD_CONFIGURE: return "WPI_CMD_CONFIGURE"; + case WPI_CMD_ASSOCIATE: return "WPI_CMD_ASSOCIATE"; + case WPI_CMD_SET_WME: return "WPI_CMD_SET_WME"; + case WPI_CMD_TSF: return "WPI_CMD_TSF"; + case WPI_CMD_ADD_NODE: return "WPI_CMD_ADD_NODE"; + case WPI_CMD_TX_DATA: return "WPI_CMD_TX_DATA"; + case WPI_CMD_MRR_SETUP: return "WPI_CMD_MRR_SETUP"; + case WPI_CMD_SET_LED: return "WPI_CMD_SET_LED"; + case WPI_CMD_SET_POWER_MODE: return "WPI_CMD_SET_POWER_MODE"; + case WPI_CMD_SCAN: return "WPI_CMD_SCAN"; + case WPI_CMD_SET_BEACON:return "WPI_CMD_SET_BEACON"; + case WPI_CMD_TXPOWER: return "WPI_CMD_TXPOWER"; + case WPI_CMD_BLUETOOTH: return "WPI_CMD_BLUETOOTH"; + + default: + KASSERT(1, ("Unknown Command: %d\n", cmd)); + return "UNKNOWN CMD"; /* Make the compiler happy */ + } +} +#endif + +MODULE_DEPEND(wpi, pci, 1, 1, 1); +MODULE_DEPEND(wpi, wlan, 1, 1, 1); +MODULE_DEPEND(wpi, firmware, 1, 1, 1); +MODULE_DEPEND(wpi, wlan_amrr, 1, 1, 1); +/* +MODULE_DEPEND(wpi, wpifw_fw_fw, 1, 1, 1); +MODULE_DEPEND(wpi, ath_rate, 1, 1, 1); +*/ diff --git a/sys/dev/netif/wpi/if_wpireg.h b/sys/dev/netif/wpi/if_wpireg.h new file mode 100644 index 0000000000..eebe2227f5 --- /dev/null +++ b/sys/dev/netif/wpi/if_wpireg.h @@ -0,0 +1,737 @@ +/* $FreeBSD: src/sys/dev/wpi/if_wpireg.h,v 1.4.2.1 2009/08/03 08:13:06 kensmith Exp $ */ + +/*- + * Copyright (c) 2006,2007 + * Damien Bergamini + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#define WPI_TX_RING_COUNT 256 +#define WPI_CMD_RING_COUNT 256 +#define WPI_RX_RING_COUNT 64 + +/* + * Rings must be aligned on a 16K boundary. + */ +#define WPI_RING_DMA_ALIGN 0x4000 + +/* maximum scatter/gather */ +#define WPI_MAX_SCATTER 4 + +/* maximum Rx buffer size */ +#define WPI_RBUF_SIZE ( 3 * 1024 ) /* XXX 3000 but must be aligned */ + +/* + * Control and status registers. + */ +#define WPI_HWCONFIG 0x000 +#define WPI_INTR 0x008 +#define WPI_MASK 0x00c +#define WPI_INTR_STATUS 0x010 +#define WPI_GPIO_STATUS 0x018 +#define WPI_RESET 0x020 +#define WPI_GPIO_CTL 0x024 +#define WPI_EEPROM_CTL 0x02c +#define WPI_EEPROM_STATUS 0x030 +#define WPI_UCODE_SET 0x058 +#define WPI_UCODE_CLR 0x05c +#define WPI_TEMPERATURE 0x060 +#define WPI_CHICKEN 0x100 +#define WPI_PLL_CTL 0x20c +#define WPI_WRITE_MEM_ADDR 0x444 +#define WPI_READ_MEM_ADDR 0x448 +#define WPI_WRITE_MEM_DATA 0x44c +#define WPI_READ_MEM_DATA 0x450 +#define WPI_TX_WIDX 0x460 +#define WPI_TX_CTL(qid) (0x940 + (qid) * 8) +#define WPI_TX_BASE(qid) (0x944 + (qid) * 8) +#define WPI_TX_DESC(qid) (0x980 + (qid) * 80) +#define WPI_RX_CONFIG 0xc00 +#define WPI_RX_BASE 0xc04 +#define WPI_RX_WIDX 0xc20 +#define WPI_RX_RIDX_PTR 0xc24 +#define WPI_RX_CTL 0xcc0 +#define WPI_RX_STATUS 0xcc4 +#define WPI_TX_CONFIG(qid) (0xd00 + (qid) * 32) +#define WPI_TX_CREDIT(qid) (0xd04 + (qid) * 32) +#define WPI_TX_STATE(qid) (0xd08 + (qid) * 32) +#define WPI_TX_BASE_PTR 0xe80 +#define WPI_MSG_CONFIG 0xe88 +#define WPI_TX_STATUS 0xe90 + + +/* + * NIC internal memory offsets. + */ +#define WPI_MEM_MODE 0x2e00 +#define WPI_MEM_RA 0x2e04 +#define WPI_MEM_TXCFG 0x2e10 +#define WPI_MEM_MAGIC4 0x2e14 +#define WPI_MEM_MAGIC5 0x2e20 +#define WPI_MEM_BYPASS1 0x2e2c +#define WPI_MEM_BYPASS2 0x2e30 +#define WPI_MEM_CLOCK1 0x3004 +#define WPI_MEM_CLOCK2 0x3008 +#define WPI_MEM_POWER 0x300c +#define WPI_MEM_PCIDEV 0x3010 +#define WPI_MEM_HW_RADIO_OFF 0x3014 +#define WPI_MEM_UCODE_CTL 0x3400 +#define WPI_MEM_UCODE_SRC 0x3404 +#define WPI_MEM_UCODE_DST 0x3408 +#define WPI_MEM_UCODE_SIZE 0x340c +#define WPI_MEM_UCODE_BASE 0x3800 + +#define WPI_MEM_TEXT_BASE 0x3490 +#define WPI_MEM_TEXT_SIZE 0x3494 +#define WPI_MEM_DATA_BASE 0x3498 +#define WPI_MEM_DATA_SIZE 0x349c + + +/* possible flags for register WPI_HWCONFIG */ +#define WPI_HW_ALM_MB (1 << 8) +#define WPI_HW_ALM_MM (1 << 9) +#define WPI_HW_SKU_MRC (1 << 10) +#define WPI_HW_REV_D (1 << 11) +#define WPI_HW_TYPE_B (1 << 12) + +/* possible flags for registers WPI_READ_MEM_ADDR/WPI_WRITE_MEM_ADDR */ +#define WPI_MEM_4 ((sizeof (uint32_t) - 1) << 24) + +/* possible values for WPI_MEM_UCODE_DST */ +#define WPI_FW_TEXT 0x00000000 + +/* possible flags for WPI_GPIO_STATUS */ +#define WPI_POWERED (1 << 9) + +/* possible flags for register WPI_RESET */ +#define WPI_NEVO_RESET (1 << 0) +#define WPI_SW_RESET (1 << 7) +#define WPI_MASTER_DISABLED (1 << 8) +#define WPI_STOP_MASTER (1 << 9) + +/* possible flags for register WPI_GPIO_CTL */ +#define WPI_GPIO_CLOCK (1 << 0) +#define WPI_GPIO_INIT (1 << 2) +#define WPI_GPIO_MAC (1 << 3) +#define WPI_GPIO_SLEEP (1 << 4) +#define WPI_GPIO_PWR_STATUS 0x07000000 +#define WPI_GPIO_PWR_SLEEP (4 << 24) + +/* possible flags for register WPI_CHICKEN */ +#define WPI_CHICKEN_RXNOLOS (1 << 23) + +/* possible flags for register WPI_PLL_CTL */ +#define WPI_PLL_INIT (1 << 24) + +/* possible flags for register WPI_UCODE_CLR */ +#define WPI_RADIO_OFF (1 << 1) +#define WPI_DISABLE_CMD (1 << 2) + +/* possible flags for WPI_RX_STATUS */ +#define WPI_RX_IDLE (1 << 24) + +/* possible flags for register WPI_UC_CTL */ +#define WPI_UC_ENABLE (1 << 30) +#define WPI_UC_RUN (1 << 31) + +/* possible flags for register WPI_INTR_CSR */ +#define WPI_ALIVE_INTR (1 << 0) +#define WPI_WAKEUP_INTR (1 << 1) +#define WPI_SW_ERROR (1 << 25) +#define WPI_TX_INTR (1 << 27) +#define WPI_HW_ERROR (1 << 29) +#define WPI_RX_INTR (1 << 31) + +#define WPI_INTR_MASK \ + (WPI_SW_ERROR | WPI_HW_ERROR | WPI_TX_INTR | WPI_RX_INTR | \ + WPI_ALIVE_INTR | WPI_WAKEUP_INTR) + +/* possible flags for register WPI_TX_STATUS */ +#define WPI_TX_IDLE(qid) (1 << ((qid) + 24) | 1 << ((qid) + 16)) + +/* possible flags for register WPI_EEPROM_CTL */ +#define WPI_EEPROM_READY (1 << 0) + +/* possible flags for register WPI_EEPROM_STATUS */ +#define WPI_EEPROM_VERSION 0x00000007 +#define WPI_EEPROM_LOCKED 0x00000180 + + +struct wpi_shared { + uint32_t txbase[8]; + uint32_t next; + uint32_t reserved[2]; +} __packed; + +#define WPI_MAX_SEG_LEN 65520 +struct wpi_tx_desc { + uint32_t flags; +#define WPI_PAD32(x) (roundup2(x, 4) - (x)) + + struct { + uint32_t addr; + uint32_t len; + } __attribute__((__packed__)) segs[WPI_MAX_SCATTER]; + uint8_t reserved[28]; +} __packed; + +struct wpi_tx_stat { + uint8_t nrts; + uint8_t ntries; + uint8_t nkill; + uint8_t rate; + uint32_t duration; + uint32_t status; +} __packed; + +struct wpi_rx_desc { + uint32_t len; + uint8_t type; +#define WPI_UC_READY 1 +#define WPI_RX_DONE 27 +#define WPI_TX_DONE 28 +#define WPI_START_SCAN 130 +#define WPI_SCAN_RESULTS 131 +#define WPI_STOP_SCAN 132 +#define WPI_STATE_CHANGED 161 +#define WPI_MISSED_BEACON 162 + + uint8_t flags; + uint8_t idx; + uint8_t qid; +} __packed; + +struct wpi_rx_stat { + uint8_t len; +#define WPI_STAT_MAXLEN 20 + + uint8_t id; + uint8_t rssi; /* received signal strength */ +#define WPI_RSSI_OFFSET 95 + + uint8_t agc; /* access gain control */ + uint16_t signal; + uint16_t noise; +} __packed; + +struct wpi_rx_head { + uint16_t chan; + uint16_t flags; + uint8_t reserved; + uint8_t rate; + uint16_t len; +} __packed; + +struct wpi_rx_tail { + uint32_t flags; +#define WPI_RX_NO_CRC_ERR (1 << 0) +#define WPI_RX_NO_OVFL_ERR (1 << 1) +/* shortcut for the above */ +#define WPI_RX_NOERROR (WPI_RX_NO_CRC_ERR | WPI_RX_NO_OVFL_ERR) + uint64_t tstamp; + uint32_t tbeacon; +} __packed; + +struct wpi_tx_cmd { + uint8_t code; +#define WPI_CMD_CONFIGURE 16 +#define WPI_CMD_ASSOCIATE 17 +#define WPI_CMD_SET_WME 19 +#define WPI_CMD_TSF 20 +#define WPI_CMD_ADD_NODE 24 +#define WPI_CMD_TX_DATA 28 +#define WPI_CMD_MRR_SETUP 71 +#define WPI_CMD_SET_LED 72 +#define WPI_CMD_SET_POWER_MODE 119 +#define WPI_CMD_SCAN 128 +#define WPI_CMD_SET_BEACON 145 +#define WPI_CMD_TXPOWER 151 +#define WPI_CMD_BLUETOOTH 155 + + uint8_t flags; + uint8_t idx; + uint8_t qid; + uint8_t data[360]; +} __packed; + +/* structure for WPI_CMD_CONFIGURE */ +struct wpi_config { + uint8_t myaddr[IEEE80211_ADDR_LEN]; + uint16_t reserved1; + uint8_t bssid[IEEE80211_ADDR_LEN]; + uint16_t reserved2; + uint8_t wlap_bssid_addr[6]; + uint16_t reserved3; + uint8_t mode; +#define WPI_MODE_HOSTAP 1 +#define WPI_MODE_STA 3 +#define WPI_MODE_IBSS 4 +#define WPI_MODE_MONITOR 6 + + uint8_t air_propogation; + uint16_t reserved4; + uint8_t ofdm_mask; + uint8_t cck_mask; + uint16_t associd; + uint32_t flags; +#define WPI_CONFIG_24GHZ (1 << 0) +#define WPI_CONFIG_CCK (1 << 1) +#define WPI_CONFIG_AUTO (1 << 2) +#define WPI_CONFIG_SHSLOT (1 << 4) +#define WPI_CONFIG_SHPREAMBLE (1 << 5) +#define WPI_CONFIG_NODIVERSITY (1 << 7) +#define WPI_CONFIG_ANTENNA_A (1 << 8) +#define WPI_CONFIG_ANTENNA_B (1 << 9) +#define WPI_CONFIG_TSF (1 << 15) + + uint32_t filter; +#define WPI_FILTER_PROMISC (1 << 0) +#define WPI_FILTER_CTL (1 << 1) +#define WPI_FILTER_MULTICAST (1 << 2) +#define WPI_FILTER_NODECRYPT (1 << 3) +#define WPI_FILTER_BSS (1 << 5) +#define WPI_FILTER_BEACON (1 << 6) + + uint8_t chan; + uint16_t reserved6; +} __packed; + +/* structure for command WPI_CMD_ASSOCIATE */ +struct wpi_assoc { + uint32_t flags; + uint32_t filter; + uint8_t ofdm_mask; + uint8_t cck_mask; + uint16_t reserved; +} __packed; + +/* structure for command WPI_CMD_SET_WME */ +struct wpi_wme_setup { + uint32_t flags; + struct { + uint16_t cwmin; + uint16_t cwmax; + uint8_t aifsn; + uint8_t reserved; + uint16_t txop; + } __packed ac[WME_NUM_AC]; +} __packed; + +/* structure for command WPI_CMD_TSF */ +struct wpi_cmd_tsf { + uint64_t tstamp; + uint16_t bintval; + uint16_t atim; + uint32_t binitval; + uint16_t lintval; + uint16_t reserved; +} __packed; + +/* structure for WPI_CMD_ADD_NODE */ +struct wpi_node_info { + uint8_t control; +#define WPI_NODE_UPDATE (1 << 0) + + uint8_t reserved1[3]; + uint8_t bssid[IEEE80211_ADDR_LEN]; + uint16_t reserved2; + uint8_t id; +#define WPI_ID_BSS 0 +#define WPI_ID_BROADCAST 24 + + uint8_t flags; + uint16_t reserved3; + uint16_t key_flags; + uint8_t tkip; + uint8_t reserved4; + uint16_t ttak[5]; + uint16_t reserved5; + uint8_t key[IEEE80211_KEYBUF_SIZE]; + uint32_t action; +#define WPI_ACTION_SET_RATE 4 + uint32_t mask; + uint16_t tid; + uint8_t rate; + uint8_t antenna; +#define WPI_ANTENNA_A (1<<6) +#define WPI_ANTENNA_B (1<<7) +#define WPI_ANTENNA_BOTH (WPI_ANTENNA_A|WPI_ANTENNA_B) + uint8_t add_imm; + uint8_t del_imm; + uint16_t add_imm_start; +} __packed; + +/* structure for command WPI_CMD_TX_DATA */ +struct wpi_cmd_data { + uint16_t len; + uint16_t lnext; + uint32_t flags; +#define WPI_TX_NEED_RTS (1 << 1) +#define WPI_TX_NEED_CTS (1 << 2) +#define WPI_TX_NEED_ACK (1 << 3) +#define WPI_TX_FULL_TXOP (1 << 7) +#define WPI_TX_BT_DISABLE (1 << 12) /* bluetooth coexistence */ +#define WPI_TX_AUTO_SEQ (1 << 13) +#define WPI_TX_INSERT_TSTAMP (1 << 16) + + uint8_t rate; + uint8_t id; + uint8_t tid; + uint8_t security; + uint8_t key[IEEE80211_KEYBUF_SIZE]; + uint8_t tkip[IEEE80211_WEP_MICLEN]; + uint32_t fnext; + uint32_t lifetime; +#define WPI_LIFETIME_INFINITE 0xffffffff + uint8_t ofdm_mask; + uint8_t cck_mask; + uint8_t rts_ntries; + uint8_t data_ntries; + uint16_t timeout; + uint16_t txop; + struct ieee80211_frame wh; +} __packed; + +/* structure for command WPI_CMD_SET_BEACON */ +struct wpi_cmd_beacon { + uint16_t len; + uint16_t reserved1; + uint32_t flags; /* same as wpi_cmd_data */ + uint8_t rate; + uint8_t id; + uint8_t reserved2[30]; + uint32_t lifetime; + uint8_t ofdm_mask; + uint8_t cck_mask; + uint16_t reserved3[3]; + uint16_t tim; + uint8_t timsz; + uint8_t reserved4; + struct ieee80211_frame wh; +} __packed; + +/* structure for notification WPI_MISSED_BEACON */ +struct wpi_missed_beacon { + uint32_t consecutive; + uint32_t total; + uint32_t expected; + uint32_t received; +} __packed; + + +/* structure for WPI_CMD_MRR_SETUP */ +struct wpi_mrr_setup { + uint8_t which; +#define WPI_MRR_CTL 0 +#define WPI_MRR_DATA 1 + + uint8_t reserved[3]; + + struct { + uint8_t signal; + uint8_t flags; + uint8_t ntries; + uint8_t next; +#define WPI_OFDM6 0 +#define WPI_OFDM54 7 +#define WPI_CCK1 8 +#define WPI_CCK2 9 +#define WPI_CCK11 11 + + } __attribute__((__packed__)) rates[WPI_CCK11 + 1]; +} __packed; + +/* structure for WPI_CMD_SET_LED */ +struct wpi_cmd_led { + uint32_t unit; /* multiplier (in usecs) */ + uint8_t which; +#define WPI_LED_ACTIVITY 1 +#define WPI_LED_LINK 2 + + uint8_t off; + uint8_t on; + uint8_t reserved; +} __packed; + +/* structure for WPI_CMD_SET_POWER_MODE */ +struct wpi_power { + uint32_t flags; +#define WPI_POWER_CAM 0 /* constantly awake mode */ + uint32_t rx_timeout; + uint32_t tx_timeout; + uint32_t sleep[5]; +} __packed; + +/* structure for command WPI_CMD_SCAN */ +struct wpi_scan_hdr { + uint16_t len; + uint8_t reserved1; + uint8_t nchan; + uint16_t quiet; + uint16_t threshold; + uint16_t promotion; + uint16_t reserved2; + uint32_t maxtimeout; + uint32_t suspend; + uint32_t flags; + uint32_t filter; + +struct { + uint16_t len; + uint16_t lnext; + uint32_t flags; + uint8_t rate; + uint8_t id; + uint8_t tid; + uint8_t security; + uint8_t key[IEEE80211_KEYBUF_SIZE]; + uint8_t tkip[IEEE80211_WEP_MICLEN]; + uint32_t fnext; + uint32_t lifetime; + uint8_t ofdm_mask; + uint8_t cck_mask; + uint8_t rts_ntries; + uint8_t data_ntries; + uint16_t timeout; + uint16_t txop; +} tx __attribute__((__packed__)); + +#define WPI_SCAN_MAX_ESSIDS 4 + struct { + uint8_t id; + uint8_t esslen; + uint8_t essid[32]; + }scan_essids[WPI_SCAN_MAX_ESSIDS]; + /* followed by probe request body */ + /* followed by nchan x wpi_scan_chan */ +} __packed; + +struct wpi_scan_chan { + uint8_t flags; + uint8_t chan; +#define WPI_CHAN_ACTIVE (1 << 0) +#define WPI_CHAN_DIRECT (1 << 1) + uint8_t gain_radio; + uint8_t gain_dsp; + uint16_t active; /* msecs */ + uint16_t passive; /* msecs */ +} __packed; + +/* structure for WPI_CMD_BLUETOOTH */ +struct wpi_bluetooth { + uint8_t flags; + uint8_t lead; + uint8_t kill; + uint8_t reserved; + uint32_t ack; + uint32_t cts; +} __packed; + +/* structure for command WPI_CMD_TXPOWER */ +struct wpi_cmd_txpower { + + uint8_t band; +#define WPI_RATE_5GHZ 0 +#define WPI_RATE_2GHZ 1 + uint8_t reserved; + uint16_t channel; + +#define WPI_RATE_MAPPING_COUNT 12 + struct { + uint8_t rate; + uint8_t gain_radio; + uint8_t gain_dsp; + uint8_t reserved; + } __packed rates [WPI_RATE_MAPPING_COUNT]; + +} __packed; + + + +#define WPI_FW_MAIN_TEXT_MAXSZ (80 * 1024 ) +#define WPI_FW_MAIN_DATA_MAXSZ (32 * 1024 ) +#define WPI_FW_INIT_TEXT_MAXSZ (80 * 1024 ) +#define WPI_FW_INIT_DATA_MAXSZ (32 * 1024 ) +#define WPI_FW_BOOT_TEXT_MAXSZ 1024 + +#define WPI_FW_UPDATED (1 << 31 ) + +/* firmware image header */ +struct wpi_firmware_hdr { + +#define WPI_FW_MINVERSION 2144 + + uint32_t version; + uint32_t rtextsz; + uint32_t rdatasz; + uint32_t itextsz; + uint32_t idatasz; + uint32_t btextsz; +} __packed; + +/* structure for WPI_UC_READY notification */ +struct wpi_ucode_info { + uint32_t version; + uint8_t revision[8]; + uint8_t type; + uint8_t subtype; + uint16_t reserved; + uint32_t logptr; + uint32_t errorptr; + uint32_t timestamp; + uint32_t valid; +} __packed; + +/* structure for WPI_START_SCAN notification */ +struct wpi_start_scan { + uint64_t tstamp; + uint32_t tbeacon; + uint8_t chan; + uint8_t band; + uint16_t reserved; + uint32_t status; +} __packed; + +/* structure for WPI_STOP_SCAN notification */ +struct wpi_stop_scan { + uint8_t nchan; + uint8_t status; + uint8_t reserved; + uint8_t chan; + uint64_t tsf; +} __packed; + +#define WPI_EEPROM_MAC 0x015 +#define WPI_EEPROM_REVISION 0x035 +#define WPI_EEPROM_CAPABILITIES 0x045 +#define WPI_EEPROM_TYPE 0x04a +#define WPI_EEPROM_DOMAIN 0x060 +#define WPI_EEPROM_BAND1 0x063 +#define WPI_EEPROM_BAND2 0x072 +#define WPI_EEPROM_BAND3 0x080 +#define WPI_EEPROM_BAND4 0x08d +#define WPI_EEPROM_BAND5 0x099 +#define WPI_EEPROM_POWER_GRP 0x100 + +struct wpi_eeprom_chan { + uint8_t flags; +#define WPI_EEPROM_CHAN_VALID (1<<0) +#define WPI_EEPROM_CHAN_IBSS (1<<1) +#define WPI_EEPROM_CHAN_ACTIVE (1<<3) +#define WPI_EEPROM_CHAN_RADAR (1<<4) + + int8_t maxpwr; +} __packed; + +struct wpi_eeprom_sample { + uint8_t index; + int8_t power; + uint16_t volt; +}; + +#define WPI_POWER_GROUPS_COUNT 5 + +struct wpi_eeprom_group { + struct wpi_eeprom_sample samples[5]; + int32_t coef[5]; + int32_t corr[5]; + int8_t maxpwr; + uint8_t chan; + int16_t temp; +} __packed; + +#define WPI_CHAN_BANDS_COUNT 5 +#define WPI_MAX_CHAN_PER_BAND 14 + +static const struct wpi_chan_band { + uint32_t addr; /* offset in EEPROM */ + uint8_t nchan; + uint8_t chan[WPI_MAX_CHAN_PER_BAND]; +} wpi_bands[5] = { + { WPI_EEPROM_BAND1, 14, + { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 }}, + { WPI_EEPROM_BAND2, 13, + { 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16 }}, + { WPI_EEPROM_BAND3, 12, + { 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64 }}, + { WPI_EEPROM_BAND4, 11, + { 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140 }}, + { WPI_EEPROM_BAND5, 6, + { 145, 149, 153, 157, 161, 165 }} +}; + +#define WPI_MAX_PWR_INDEX 77 + +/* + * RF Tx gain values from highest to lowest power (values obtained from + * the reference driver.) + */ +static const uint8_t wpi_rf_gain_2ghz[WPI_MAX_PWR_INDEX + 1] = { + 0xfb, 0xfb, 0xfb, 0xfb, 0xfb, 0xfb, 0xfb, 0xfb, 0xbb, 0xbb, 0xbb, + 0xbb, 0xf3, 0xf3, 0xf3, 0xf3, 0xf3, 0xd3, 0xd3, 0xb3, 0xb3, 0xb3, + 0x93, 0x93, 0x93, 0x93, 0x93, 0x93, 0x93, 0x73, 0xeb, 0xeb, 0xeb, + 0xcb, 0xcb, 0xcb, 0xcb, 0xcb, 0xcb, 0xcb, 0xab, 0xab, 0xab, 0x8b, + 0xe3, 0xe3, 0xe3, 0xe3, 0xe3, 0xe3, 0xc3, 0xc3, 0xc3, 0xc3, 0xa3, + 0xa3, 0xa3, 0xa3, 0x83, 0x83, 0x83, 0x83, 0x63, 0x63, 0x63, 0x63, + 0x43, 0x43, 0x43, 0x43, 0x23, 0x23, 0x23, 0x23, 0x03, 0x03, 0x03, + 0x03 +}; + +static const uint8_t wpi_rf_gain_5ghz[WPI_MAX_PWR_INDEX + 1] = { + 0xfb, 0xfb, 0xfb, 0xdb, 0xdb, 0xbb, 0xbb, 0x9b, 0x9b, 0x7b, 0x7b, + 0x7b, 0x7b, 0x5b, 0x3b, 0x3b, 0x3b, 0x3b, 0x3b, 0x3b, 0x1b, 0x1b, + 0x1b, 0x73, 0x73, 0x73, 0x53, 0x53, 0x53, 0x53, 0x53, 0x33, 0x33, + 0x33, 0x33, 0x13, 0x13, 0x13, 0x13, 0x13, 0xab, 0xab, 0xab, 0x8b, + 0x8b, 0x8b, 0x8b, 0x6b, 0x6b, 0x6b, 0x6b, 0x4b, 0x4b, 0x4b, 0x4b, + 0x2b, 0x2b, 0x2b, 0x2b, 0x0b, 0x0b, 0x0b, 0x0b, 0x83, 0x83, 0x63, + 0x63, 0x63, 0x63, 0x43, 0x43, 0x43, 0x43, 0x23, 0x23, 0x23, 0x23, + 0x03 +}; + +/* + * DSP pre-DAC gain values from highest to lowest power (values obtained + * from the reference driver.) + */ +static const uint8_t wpi_dsp_gain_2ghz[WPI_MAX_PWR_INDEX + 1] = { + 0x7f, 0x7f, 0x7f, 0x7f, 0x7d, 0x6e, 0x69, 0x62, 0x7d, 0x73, 0x6c, + 0x63, 0x77, 0x6f, 0x69, 0x61, 0x5c, 0x6a, 0x64, 0x78, 0x71, 0x6b, + 0x7d, 0x77, 0x70, 0x6a, 0x65, 0x61, 0x5b, 0x6b, 0x79, 0x73, 0x6d, + 0x7f, 0x79, 0x73, 0x6c, 0x66, 0x60, 0x5c, 0x6e, 0x68, 0x62, 0x74, + 0x7d, 0x77, 0x71, 0x6b, 0x65, 0x60, 0x71, 0x6a, 0x66, 0x5f, 0x71, + 0x6a, 0x66, 0x5f, 0x71, 0x6a, 0x66, 0x5f, 0x71, 0x6a, 0x66, 0x5f, + 0x71, 0x6a, 0x66, 0x5f, 0x71, 0x6a, 0x66, 0x5f, 0x71, 0x6a, 0x66, + 0x5f +}; + +static const uint8_t wpi_dsp_gain_5ghz[WPI_MAX_PWR_INDEX + 1] = { + 0x7f, 0x78, 0x72, 0x77, 0x65, 0x71, 0x66, 0x72, 0x67, 0x75, 0x6b, + 0x63, 0x5c, 0x6c, 0x7d, 0x76, 0x6d, 0x66, 0x60, 0x5a, 0x68, 0x62, + 0x5c, 0x76, 0x6f, 0x68, 0x7e, 0x79, 0x71, 0x69, 0x63, 0x76, 0x6f, + 0x68, 0x62, 0x74, 0x6d, 0x66, 0x62, 0x5d, 0x71, 0x6b, 0x63, 0x78, + 0x71, 0x6b, 0x63, 0x78, 0x71, 0x6b, 0x63, 0x78, 0x71, 0x6b, 0x63, + 0x78, 0x71, 0x6b, 0x63, 0x78, 0x71, 0x6b, 0x63, 0x6b, 0x63, 0x78, + 0x71, 0x6b, 0x63, 0x78, 0x71, 0x6b, 0x63, 0x78, 0x71, 0x6b, 0x63, + 0x78 +}; + + +#define WPI_READ(sc, reg) \ + bus_space_read_4((sc)->sc_st, (sc)->sc_sh, (reg)) + +#define WPI_WRITE(sc, reg, val) \ + bus_space_write_4((sc)->sc_st, (sc)->sc_sh, (reg), (val)) + +#define WPI_WRITE_REGION_4(sc, offset, datap, count) \ + bus_space_write_region_4((sc)->sc_st, (sc)->sc_sh, (offset), \ + (datap), (count)) diff --git a/sys/dev/netif/wpi/if_wpivar.h b/sys/dev/netif/wpi/if_wpivar.h new file mode 100644 index 0000000000..b398bedd45 --- /dev/null +++ b/sys/dev/netif/wpi/if_wpivar.h @@ -0,0 +1,213 @@ +/* $FreeBSD: src/sys/dev/wpi/if_wpivar.h,v 1.6.2.1 2009/08/03 08:13:06 kensmith Exp $ */ + +/*- + * Copyright (c) 2006,2007 + * Damien Bergamini + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ +#include + +struct wpi_rx_radiotap_header { + struct ieee80211_radiotap_header wr_ihdr; + uint64_t wr_tsft; + uint8_t wr_flags; + uint8_t wr_rate; + uint16_t wr_chan_freq; + uint16_t wr_chan_flags; + int8_t wr_dbm_antsignal; + int8_t wr_dbm_antnoise; + uint8_t wr_antenna; +}; + +#define WPI_RX_RADIOTAP_PRESENT \ + ((1 << IEEE80211_RADIOTAP_TSFT) | \ + (1 << IEEE80211_RADIOTAP_FLAGS) | \ + (1 << IEEE80211_RADIOTAP_RATE) | \ + (1 << IEEE80211_RADIOTAP_CHANNEL) | \ + (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) | \ + (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) | \ + (1 << IEEE80211_RADIOTAP_ANTENNA)) + +struct wpi_tx_radiotap_header { + struct ieee80211_radiotap_header wt_ihdr; + uint8_t wt_flags; + uint8_t wt_rate; + uint16_t wt_chan_freq; + uint16_t wt_chan_flags; + uint8_t wt_hwqueue; +}; + +#define WPI_TX_RADIOTAP_PRESENT \ + ((1 << IEEE80211_RADIOTAP_FLAGS) | \ + (1 << IEEE80211_RADIOTAP_RATE) | \ + (1 << IEEE80211_RADIOTAP_CHANNEL)) + +struct wpi_dma_info { + bus_dma_tag_t tag; + bus_dmamap_t map; + bus_addr_t paddr; /* aligned p address */ + bus_addr_t paddr_start; /* possibly unaligned p start*/ + caddr_t vaddr; /* aligned v address */ + caddr_t vaddr_start; /* possibly unaligned v start */ + bus_size_t size; +}; + +struct wpi_tx_data { + bus_dmamap_t map; + struct mbuf *m; + struct ieee80211_node *ni; +}; + +struct wpi_tx_ring { + struct wpi_dma_info desc_dma; + struct wpi_dma_info cmd_dma; + struct wpi_tx_desc *desc; + struct wpi_tx_cmd *cmd; + struct wpi_tx_data *data; + bus_dma_tag_t data_dmat; + int qid; + int count; + int queued; + int cur; +}; + +#define WPI_RBUF_COUNT ( WPI_RX_RING_COUNT + 16 ) + +struct wpi_rx_data { + bus_dmamap_t map; + struct mbuf *m; +}; + +struct wpi_rx_ring { + struct wpi_dma_info desc_dma; + uint32_t *desc; + struct wpi_rx_data data[WPI_RX_RING_COUNT]; + bus_dma_tag_t data_dmat; + int cur; +}; + +struct wpi_amrr { + struct ieee80211_node ni; /* must be the first */ + int txcnt; + int retrycnt; + int success; + int success_threshold; + int recovery; +}; + +struct wpi_node { + struct ieee80211_node ni; /* must be the first */ + struct ieee80211_amrr_node amn; +}; +#define WPI_NODE(ni) ((struct wpi_node *)(ni)) + +struct wpi_power_sample { + uint8_t index; + int8_t power; +}; + +struct wpi_power_group { +#define WPI_SAMPLES_COUNT 5 + struct wpi_power_sample samples[WPI_SAMPLES_COUNT]; + uint8_t chan; + int8_t maxpwr; + int16_t temp; +}; + +struct wpi_vap { + struct ieee80211vap vap; + struct ieee80211_amrr amrr; + + int (*newstate)(struct ieee80211vap *, + enum ieee80211_state, int); +}; +#define WPI_VAP(vap) ((struct wpi_vap *)(vap)) + +struct wpi_softc { + device_t sc_dev; + struct ifnet *sc_ifp; + struct lock sc_lock; + + struct fw_image *sc_fw_image; + + /* Flags indicating the current state the driver + * expects the hardware to be in + */ + uint32_t flags; +#define WPI_FLAG_HW_RADIO_OFF (1 << 0) +#define WPI_FLAG_BUSY (1 << 1) +#define WPI_FLAG_AUTH (1 << 2) + + /* shared area */ + struct wpi_dma_info shared_dma; + struct wpi_shared *shared; + + struct wpi_tx_ring txq[WME_NUM_AC]; + struct wpi_tx_ring cmdq; + struct wpi_rx_ring rxq; + + /* TX Thermal Callibration */ + struct callout calib_to; + int calib_cnt; + + /* Watch dog timer */ + struct callout watchdog_to; + /* Hardware switch polling timer */ + struct callout hwswitch_to; + + struct resource *irq; + struct resource *mem; + bus_space_tag_t sc_st; + bus_space_handle_t sc_sh; + void *sc_ih; + int mem_rid; + int irq_rid; + + struct wpi_config config; + int temp; + + + int sc_tx_timer; + int sc_scan_timer; + + struct bpf_if *sc_drvbpf; + + struct wpi_rx_radiotap_header sc_rxtap; + struct wpi_tx_radiotap_header sc_txtap; + + /* firmware image */ + const struct firmware *fw_fp; + + /* firmware DMA transfer */ + struct wpi_dma_info fw_dma; + + /* Tasks used by the driver */ + struct task sc_restarttask; /* reset firmware task */ + struct task sc_radiotask; /* reset rf task */ + + /* Eeprom info */ + uint8_t cap; + uint16_t rev; + uint8_t type; + struct wpi_power_group groups[WPI_POWER_GROUPS_COUNT]; + int8_t maxpwr[IEEE80211_CHAN_MAX]; + char domain[4]; /*reglatory domain XXX */ +}; +#define WPI_LOCK_INIT(_sc) \ + lockinit(&(_sc)->sc_lock, device_get_nameunit((_sc)->sc_dev), \ + 0, LK_CANRECURSE) +#define WPI_LOCK(_sc) lockmgr(&(_sc)->sc_lock, LK_EXCLUSIVE) +#define WPI_UNLOCK(_sc) lockmgr(&(_sc)->sc_lock, LK_RELEASE) +#define WPI_LOCK_ASSERT(sc) KKASSERT(lockstatus(&(sc)->sc_lock, curthread) != 0) +#define WPI_LOCK_DESTROY(_sc) lockuninit(&(_sc)->sc_lock)