/* * Broadcom Dongle Host Driver (DHD), Linux-specific network interface * Basically selected code segments from usb-cdc.c and usb-rndis.c * * Copyright (C) 1999-2011, Broadcom Corporation * * Unless you and Broadcom execute a separate written software license * agreement governing use of this software, this software is licensed to you * under the terms of the GNU General Public License version 2 (the "GPL"), * available at http://www.broadcom.com/licenses/GPLv2.php, with the * following added to such license: * * As a special exception, the copyright holders of this software give you * permission to link this software with independent modules, and to copy and * distribute the resulting executable under terms of your choice, provided that * you also meet, for each linked independent module, the terms and conditions of * the license of that module. An independent module is a module which is not * derived from this software. The special exception does not apply to any * modifications of the software. * * Notwithstanding the above, under no circumstances may you combine this * software in any way with any other Broadcom software provided under a license * other than the GPL, without Broadcom's express prior written consent. * * $Id: dhd_linux.c 319136 2012-03-07 03:10:36Z $ */ #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 #ifdef CONFIG_HAS_WAKELOCK #include #endif #ifdef WL_CFG80211 #include #endif #include #include #include #ifdef WLMEDIA_HTSF #include #include #define HTSF_MINLEN 200 /* min. packet length to timestamp */ #define HTSF_BUS_DELAY 150 /* assume a fix propagation in us */ #define TSMAX 1000 /* max no. of timing record kept */ #define NUMBIN 34 static uint32 tsidx = 0; static uint32 htsf_seqnum = 0; uint32 tsfsync; struct timeval tsync; static uint32 tsport = 5010; typedef struct histo_ { uint32 bin[NUMBIN]; } histo_t; #if !ISPOWEROF2(DHD_SDALIGN) #error DHD_SDALIGN is not a power of 2! #endif static histo_t vi_d1, vi_d2, vi_d3, vi_d4; #endif /* WLMEDIA_HTSF */ #if defined(SOFTAP) extern bool ap_cfg_running; extern bool ap_fw_loaded; #endif /* enable HOSTIP cache update from the host side when an eth0:N is up */ #define AOE_IP_ALIAS_SUPPORT 1 #ifdef PROP_TXSTATUS #include #include #endif #include #ifdef ARP_OFFLOAD_SUPPORT void aoe_update_host_ipv4_table(dhd_pub_t *dhd_pub, u32 ipa, bool add); static int dhd_device_event(struct notifier_block *this, unsigned long event, void *ptr); static struct notifier_block dhd_notifier = { .notifier_call = dhd_device_event }; #endif /* ARP_OFFLOAD_SUPPORT */ #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) #include volatile bool dhd_mmc_suspend = FALSE; DECLARE_WAIT_QUEUE_HEAD(dhd_dpc_wait); #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) */ #if defined(OOB_INTR_ONLY) extern void dhd_enable_oob_intr(struct dhd_bus *bus, bool enable); #endif /* defined(OOB_INTR_ONLY) */ #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)) MODULE_LICENSE("GPL v2"); #endif /* LinuxVer */ #include #ifndef PROP_TXSTATUS #define DBUS_RX_BUFFER_SIZE_DHD(net) (net->mtu + net->hard_header_len + dhd->pub.hdrlen) #else #define DBUS_RX_BUFFER_SIZE_DHD(net) (net->mtu + net->hard_header_len + dhd->pub.hdrlen + 128) #endif #if LINUX_VERSION_CODE == KERNEL_VERSION(2, 6, 15) const char * print_tainted() { return ""; } #endif /* LINUX_VERSION_CODE == KERNEL_VERSION(2, 6, 15) */ /* Linux wireless extension support */ #if defined(CONFIG_BCMDHD_WEXT) #include extern wl_iw_extra_params_t g_wl_iw_params; #endif /* defined(CONFIG_BCMDHD_WEXT) */ #if defined(CONFIG_HAS_EARLYSUSPEND) && defined(DHD_USE_EARLYSUSPEND) #include #endif /* defined(CONFIG_HAS_EARLYSUSPEND) */ extern int dhd_get_dtim_skip(dhd_pub_t *dhd); #ifdef PKT_FILTER_SUPPORT extern void dhd_pktfilter_offload_set(dhd_pub_t * dhd, char *arg); extern void dhd_pktfilter_offload_enable(dhd_pub_t * dhd, char *arg, int enable, int master_mode); #endif /* Interface control information */ typedef struct dhd_if { struct dhd_info *info; /* back pointer to dhd_info */ /* OS/stack specifics */ struct net_device *net; struct net_device_stats stats; int idx; /* iface idx in dongle */ dhd_if_state_t state; /* interface state */ uint subunit; /* subunit */ uint8 mac_addr[ETHER_ADDR_LEN]; /* assigned MAC address */ bool attached; /* Delayed attachment when unset */ bool txflowcontrol; /* Per interface flow control indicator */ char name[IFNAMSIZ+1]; /* linux interface name */ uint8 bssidx; /* bsscfg index for the interface */ bool set_multicast; } dhd_if_t; #ifdef WLMEDIA_HTSF typedef struct { uint32 low; uint32 high; } tsf_t; typedef struct { uint32 last_cycle; uint32 last_sec; uint32 last_tsf; uint32 coef; /* scaling factor */ uint32 coefdec1; /* first decimal */ uint32 coefdec2; /* second decimal */ } htsf_t; typedef struct { uint32 t1; uint32 t2; uint32 t3; uint32 t4; } tstamp_t; static tstamp_t ts[TSMAX]; static tstamp_t maxdelayts; static uint32 maxdelay = 0, tspktcnt = 0, maxdelaypktno = 0; #endif /* WLMEDIA_HTSF */ /* Local private structure (extension of pub) */ typedef struct dhd_info { #if defined(CONFIG_BCMDHD_WEXT) wl_iw_t iw; /* wireless extensions state (must be first) */ #endif /* defined(CONFIG_BCMDHD_WEXT) */ dhd_pub_t pub; /* For supporting multiple interfaces */ dhd_if_t *iflist[DHD_MAX_IFS]; struct semaphore proto_sem; #ifdef PROP_TXSTATUS spinlock_t wlfc_spinlock; #endif /* PROP_TXSTATUS */ #ifdef WLMEDIA_HTSF htsf_t htsf; #endif wait_queue_head_t ioctl_resp_wait; struct timer_list timer; bool wd_timer_valid; struct tasklet_struct tasklet; spinlock_t sdlock; spinlock_t txqlock; spinlock_t dhd_lock; #ifdef DHDTHREAD /* Thread based operation */ bool threads_only; struct semaphore sdsem; tsk_ctl_t thr_dpc_ctl; tsk_ctl_t thr_wdt_ctl; #else bool dhd_tasklet_create; #endif /* DHDTHREAD */ tsk_ctl_t thr_sysioc_ctl; /* Wakelocks */ #if defined(CONFIG_HAS_WAKELOCK) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) struct wake_lock wl_wifi; /* Wifi wakelock */ struct wake_lock wl_rxwake; /* Wifi rx wakelock */ struct wake_lock wl_ctrlwake; /* Wifi ctrl wakelock */ #endif #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) /* net_device interface lock, prevent race conditions among net_dev interface * calls and wifi_on or wifi_off */ struct mutex dhd_net_if_mutex; struct mutex dhd_suspend_mutex; #endif spinlock_t wakelock_spinlock; int wakelock_counter; int wakelock_rx_timeout_enable; int wakelock_ctrl_timeout_enable; /* Thread to issue ioctl for multicast */ bool set_macaddress; struct ether_addr macvalue; wait_queue_head_t ctrl_wait; atomic_t pend_8021x_cnt; dhd_attach_states_t dhd_state; #if defined(CONFIG_HAS_EARLYSUSPEND) && defined(DHD_USE_EARLYSUSPEND) struct early_suspend early_suspend; #endif /* CONFIG_HAS_EARLYSUSPEND */ #ifdef ARP_OFFLOAD_SUPPORT u32 pend_ipaddr; #endif /* ARP_OFFLOAD_SUPPORT */ } dhd_info_t; /* Definitions to provide path to the firmware and nvram * example nvram_path[MOD_PARAM_PATHLEN]="/projects/wlan/nvram.txt" */ char firmware_path[MOD_PARAM_PATHLEN]; char nvram_path[MOD_PARAM_PATHLEN]; int op_mode = 0; module_param(op_mode, int, 0644); extern int wl_control_wl_start(struct net_device *dev); extern int net_os_send_hang_message(struct net_device *dev); #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) struct semaphore dhd_registration_sem; #define DHD_REGISTRATION_TIMEOUT 12000 /* msec : allowed time to finished dhd registration */ #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */ /* Spawn a thread for system ioctls (set mac, set mcast) */ uint dhd_sysioc = TRUE; module_param(dhd_sysioc, uint, 0); /* Error bits */ module_param(dhd_msg_level, int, 0); /* load firmware and/or nvram values from the filesystem */ module_param_string(firmware_path, firmware_path, MOD_PARAM_PATHLEN, 0660); module_param_string(nvram_path, nvram_path, MOD_PARAM_PATHLEN, 0); /* Watchdog interval */ uint dhd_watchdog_ms = 10; module_param(dhd_watchdog_ms, uint, 0); #if defined(DHD_DEBUG) /* Console poll interval */ uint dhd_console_ms = 0; module_param(dhd_console_ms, uint, 0644); #endif /* defined(DHD_DEBUG) */ /* ARP offload agent mode : Enable ARP Host Auto-Reply and ARP Peer Auto-Reply */ uint dhd_arp_mode = 0xb; module_param(dhd_arp_mode, uint, 0); /* ARP offload enable */ uint dhd_arp_enable = TRUE; module_param(dhd_arp_enable, uint, 0); /* Global Pkt filter enable control */ uint dhd_pkt_filter_enable = TRUE; module_param(dhd_pkt_filter_enable, uint, 0); /* Pkt filter init setup */ uint dhd_pkt_filter_init = 0; module_param(dhd_pkt_filter_init, uint, 0); /* Pkt filter mode control */ uint dhd_master_mode = TRUE; module_param(dhd_master_mode, uint, 0); #ifdef DHDTHREAD /* Watchdog thread priority, -1 to use kernel timer */ int dhd_watchdog_prio = 97; module_param(dhd_watchdog_prio, int, 0); /* DPC thread priority, -1 to use tasklet */ int dhd_dpc_prio = 98; module_param(dhd_dpc_prio, int, 0); /* DPC thread priority, -1 to use tasklet */ extern int dhd_dongle_memsize; module_param(dhd_dongle_memsize, int, 0); #endif /* DHDTHREAD */ /* Control fw roaming */ uint dhd_roam_disable = 0; /* Control radio state */ uint dhd_radio_up = 1; /* Network inteface name */ char iface_name[IFNAMSIZ] = {'\0'}; module_param_string(iface_name, iface_name, IFNAMSIZ, 0); /* The following are specific to the SDIO dongle */ /* IOCTL response timeout */ int dhd_ioctl_timeout_msec = IOCTL_RESP_TIMEOUT; /* Idle timeout for backplane clock */ int dhd_idletime = DHD_IDLETIME_TICKS; module_param(dhd_idletime, int, 0); /* Use polling */ uint dhd_poll = FALSE; module_param(dhd_poll, uint, 0); /* Use interrupts */ uint dhd_intr = TRUE; module_param(dhd_intr, uint, 0); /* SDIO Drive Strength (in milliamps) */ uint dhd_sdiod_drive_strength = 6; module_param(dhd_sdiod_drive_strength, uint, 0); /* Tx/Rx bounds */ extern uint dhd_txbound; extern uint dhd_rxbound; module_param(dhd_txbound, uint, 0); module_param(dhd_rxbound, uint, 0); /* Deferred transmits */ extern uint dhd_deferred_tx; module_param(dhd_deferred_tx, uint, 0); #ifdef BCMDBGFS extern void dhd_dbg_init(dhd_pub_t *dhdp); extern void dhd_dbg_remove(void); #endif /* BCMDBGFS */ #ifdef SDTEST /* Echo packet generator (pkts/s) */ uint dhd_pktgen = 0; module_param(dhd_pktgen, uint, 0); /* Echo packet len (0 => sawtooth, max 2040) */ uint dhd_pktgen_len = 0; module_param(dhd_pktgen_len, uint, 0); #endif /* SDTEST */ /* Version string to report */ #ifdef DHD_DEBUG #ifndef SRCBASE #define SRCBASE "drivers/net/wireless/bcmdhd" #endif #define DHD_COMPILED "\nCompiled in " SRCBASE #else #define DHD_COMPILED #endif /* DHD_DEBUG */ static char dhd_version[] = "Dongle Host Driver, version " EPI_VERSION_STR #ifdef DHD_DEBUG "\nCompiled in " SRCBASE " on " __DATE__ " at " __TIME__ #endif ; static void dhd_net_if_lock_local(dhd_info_t *dhd); static void dhd_net_if_unlock_local(dhd_info_t *dhd); static void dhd_suspend_lock(dhd_pub_t *dhdp); static void dhd_suspend_unlock(dhd_pub_t *dhdp); #if !defined(AP) && defined(WLP2P) && defined(WL_ENABLE_P2P_IF) static u32 dhd_concurrent_fw(dhd_pub_t *dhd); #endif #ifdef WLMEDIA_HTSF void htsf_update(dhd_info_t *dhd, void *data); tsf_t prev_tsf, cur_tsf; uint32 dhd_get_htsf(dhd_info_t *dhd, int ifidx); static int dhd_ioctl_htsf_get(dhd_info_t *dhd, int ifidx); static void dhd_dump_latency(void); static void dhd_htsf_addtxts(dhd_pub_t *dhdp, void *pktbuf); static void dhd_htsf_addrxts(dhd_pub_t *dhdp, void *pktbuf); static void dhd_dump_htsfhisto(histo_t *his, char *s); #endif /* WLMEDIA_HTSF */ /* Monitor interface */ int dhd_monitor_init(void *dhd_pub); int dhd_monitor_uninit(void); #if defined(CONFIG_BCMDHD_WEXT) struct iw_statistics *dhd_get_wireless_stats(struct net_device *dev); #endif /* defined(CONFIG_BCMDHD_WEXT) */ static void dhd_dpc(ulong data); /* forward decl */ extern int dhd_wait_pend8021x(struct net_device *dev); #ifdef TOE #ifndef BDC #error TOE requires BDC #endif /* !BDC */ static int dhd_toe_get(dhd_info_t *dhd, int idx, uint32 *toe_ol); static int dhd_toe_set(dhd_info_t *dhd, int idx, uint32 toe_ol); #endif /* TOE */ static int dhd_wl_host_event(dhd_info_t *dhd, int *ifidx, void *pktdata, wl_event_msg_t *event_ptr, void **data_ptr); #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) static int dhd_sleep_pm_callback(struct notifier_block *nfb, unsigned long action, void *ignored) { int ret = NOTIFY_DONE; #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 39)) switch (action) { case PM_HIBERNATION_PREPARE: case PM_SUSPEND_PREPARE: dhd_mmc_suspend = TRUE; ret = NOTIFY_OK; break; case PM_POST_HIBERNATION: case PM_POST_SUSPEND: dhd_mmc_suspend = FALSE; ret = NOTIFY_OK; break; } smp_mb(); #endif return ret; } static struct notifier_block dhd_sleep_pm_notifier = { .notifier_call = dhd_sleep_pm_callback, .priority = 10 }; extern int register_pm_notifier(struct notifier_block *nb); extern int unregister_pm_notifier(struct notifier_block *nb); #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) */ static void dhd_set_packet_filter(int value, dhd_pub_t *dhd) { #ifdef PKT_FILTER_SUPPORT DHD_TRACE(("%s: %d\n", __FUNCTION__, value)); /* 1 - Enable packet filter, only allow unicast packet to send up */ /* 0 - Disable packet filter */ if (dhd_pkt_filter_enable) { int i; for (i = 0; i < dhd->pktfilter_count; i++) { dhd_pktfilter_offload_set(dhd, dhd->pktfilter[i]); dhd_pktfilter_offload_enable(dhd, dhd->pktfilter[i], value, dhd_master_mode); } } #endif } static int dhd_set_suspend(int value, dhd_pub_t *dhd) { int power_mode = PM_MAX; /* wl_pkt_filter_enable_t enable_parm; */ char iovbuf[32]; int bcn_li_dtim = 3; uint roamvar = 1; DHD_TRACE(("%s: enter, value = %d in_suspend=%d\n", __FUNCTION__, value, dhd->in_suspend)); dhd_suspend_lock(dhd); if (dhd && dhd->up) { if (value && dhd->in_suspend) { /* Kernel suspended */ DHD_ERROR(("%s: force extra Suspend setting \n", __FUNCTION__)); dhd_wl_ioctl_cmd(dhd, WLC_SET_PM, (char *)&power_mode, sizeof(power_mode), TRUE, 0); /* Enable packet filter, only allow unicast packet to send up */ dhd_set_packet_filter(1, dhd); /* If DTIM skip is set up as default, force it to wake * each third DTIM for better power savings. Note that * one side effect is a chance to miss BC/MC packet. */ bcn_li_dtim = dhd_get_dtim_skip(dhd); bcm_mkiovar("bcn_li_dtim", (char *)&bcn_li_dtim, 4, iovbuf, sizeof(iovbuf)); dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0); /* Disable firmware roaming during suspend */ bcm_mkiovar("roam_off", (char *)&roamvar, 4, iovbuf, sizeof(iovbuf)); dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0); } else { /* Kernel resumed */ DHD_TRACE(("%s: Remove extra suspend setting \n", __FUNCTION__)); power_mode = PM_FAST; dhd_wl_ioctl_cmd(dhd, WLC_SET_PM, (char *)&power_mode, sizeof(power_mode), TRUE, 0); /* disable pkt filter */ dhd_set_packet_filter(0, dhd); /* restore pre-suspend setting for dtim_skip */ bcm_mkiovar("bcn_li_dtim", (char *)&dhd->dtim_skip, 4, iovbuf, sizeof(iovbuf)); dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0); roamvar = dhd_roam_disable; bcm_mkiovar("roam_off", (char *)&roamvar, 4, iovbuf, sizeof(iovbuf)); dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0); } } dhd_suspend_unlock(dhd); return 0; } static int dhd_suspend_resume_helper(struct dhd_info *dhd, int val, int force) { dhd_pub_t *dhdp = &dhd->pub; int ret = 0; DHD_OS_WAKE_LOCK(dhdp); /* Set flag when early suspend was called */ dhdp->in_suspend = val; if ((force || !dhdp->suspend_disable_flag) && (dhd_check_ap_wfd_mode_set(dhdp) == FALSE)) { ret = dhd_set_suspend(val, dhdp); } DHD_OS_WAKE_UNLOCK(dhdp); return ret; } #if defined(CONFIG_HAS_EARLYSUSPEND) && defined(DHD_USE_EARLYSUSPEND) static void dhd_early_suspend(struct early_suspend *h) { struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend); DHD_TRACE(("%s: enter\n", __FUNCTION__)); if (dhd) dhd_suspend_resume_helper(dhd, 1, 0); } static void dhd_late_resume(struct early_suspend *h) { struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend); DHD_TRACE(("%s: enter\n", __FUNCTION__)); if (dhd) dhd_suspend_resume_helper(dhd, 0, 0); } #endif /* defined(CONFIG_HAS_EARLYSUSPEND) */ /* * Generalized timeout mechanism. Uses spin sleep with exponential back-off until * the sleep time reaches one jiffy, then switches over to task delay. Usage: * * dhd_timeout_start(&tmo, usec); * while (!dhd_timeout_expired(&tmo)) * if (poll_something()) * break; * if (dhd_timeout_expired(&tmo)) * fatal(); */ void dhd_timeout_start(dhd_timeout_t *tmo, uint usec) { tmo->limit = usec; tmo->increment = 0; tmo->elapsed = 0; tmo->tick = 1000000 / HZ; } int dhd_timeout_expired(dhd_timeout_t *tmo) { /* Does nothing the first call */ if (tmo->increment == 0) { tmo->increment = 1; return 0; } if (tmo->elapsed >= tmo->limit) return 1; /* Add the delay that's about to take place */ tmo->elapsed += tmo->increment; if (tmo->increment < tmo->tick) { OSL_DELAY(tmo->increment); tmo->increment *= 2; if (tmo->increment > tmo->tick) tmo->increment = tmo->tick; } else { wait_queue_head_t delay_wait; DECLARE_WAITQUEUE(wait, current); int pending; init_waitqueue_head(&delay_wait); add_wait_queue(&delay_wait, &wait); set_current_state(TASK_INTERRUPTIBLE); schedule_timeout(1); pending = signal_pending(current); remove_wait_queue(&delay_wait, &wait); set_current_state(TASK_RUNNING); if (pending) return 1; /* Interrupted */ } return 0; } int dhd_net2idx(dhd_info_t *dhd, struct net_device *net) { int i = 0; ASSERT(dhd); while (i < DHD_MAX_IFS) { if (dhd->iflist[i] && (dhd->iflist[i]->net == net)) return i; i++; } return DHD_BAD_IF; } struct net_device * dhd_idx2net(void *pub, int ifidx) { struct dhd_pub *dhd_pub = (struct dhd_pub *)pub; struct dhd_info *dhd_info; if (!dhd_pub || ifidx < 0 || ifidx >= DHD_MAX_IFS) return NULL; dhd_info = dhd_pub->info; if (dhd_info && dhd_info->iflist[ifidx]) return dhd_info->iflist[ifidx]->net; return NULL; } int dhd_ifname2idx(dhd_info_t *dhd, char *name) { int i = DHD_MAX_IFS; ASSERT(dhd); if (name == NULL || *name == '\0') return 0; while (--i > 0) if (dhd->iflist[i] && !strncmp(dhd->iflist[i]->name, name, IFNAMSIZ)) break; DHD_TRACE(("%s: return idx %d for \"%s\"\n", __FUNCTION__, i, name)); return i; /* default - the primary interface */ } char * dhd_ifname(dhd_pub_t *dhdp, int ifidx) { dhd_info_t *dhd = (dhd_info_t *)dhdp->info; ASSERT(dhd); if (ifidx < 0 || ifidx >= DHD_MAX_IFS) { DHD_ERROR(("%s: ifidx %d out of range\n", __FUNCTION__, ifidx)); return ""; } if (dhd->iflist[ifidx] == NULL) { DHD_ERROR(("%s: null i/f %d\n", __FUNCTION__, ifidx)); return ""; } if (dhd->iflist[ifidx]->net) return dhd->iflist[ifidx]->net->name; return ""; } uint8 * dhd_bssidx2bssid(dhd_pub_t *dhdp, int idx) { int i; dhd_info_t *dhd = (dhd_info_t *)dhdp; ASSERT(dhd); for (i = 0; i < DHD_MAX_IFS; i++) if (dhd->iflist[i] && dhd->iflist[i]->bssidx == idx) return dhd->iflist[i]->mac_addr; return NULL; } static void _dhd_set_multicast_list(dhd_info_t *dhd, int ifidx) { struct net_device *dev; #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35) struct netdev_hw_addr *ha; #else struct dev_mc_list *mclist; #endif uint32 allmulti, cnt; wl_ioctl_t ioc; char *buf, *bufp; uint buflen; int ret; ASSERT(dhd && dhd->iflist[ifidx]); dev = dhd->iflist[ifidx]->net; #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27) netif_addr_lock_bh(dev); #endif #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35) cnt = netdev_mc_count(dev); #else cnt = dev->mc_count; #endif #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27) netif_addr_unlock_bh(dev); #endif /* Determine initial value of allmulti flag */ allmulti = (dev->flags & IFF_ALLMULTI) ? TRUE : FALSE; /* Send down the multicast list first. */ buflen = sizeof("mcast_list") + sizeof(cnt) + (cnt * ETHER_ADDR_LEN); if (!(bufp = buf = MALLOC(dhd->pub.osh, buflen))) { DHD_ERROR(("%s: out of memory for mcast_list, cnt %d\n", dhd_ifname(&dhd->pub, ifidx), cnt)); return; } strcpy(bufp, "mcast_list"); bufp += strlen("mcast_list") + 1; cnt = htol32(cnt); memcpy(bufp, &cnt, sizeof(cnt)); bufp += sizeof(cnt); #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27) netif_addr_lock_bh(dev); #endif #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35) netdev_for_each_mc_addr(ha, dev) { if (!cnt) break; memcpy(bufp, ha->addr, ETHER_ADDR_LEN); bufp += ETHER_ADDR_LEN; cnt--; } #else for (mclist = dev->mc_list; (mclist && (cnt > 0)); cnt--, mclist = mclist->next) { memcpy(bufp, (void *)mclist->dmi_addr, ETHER_ADDR_LEN); bufp += ETHER_ADDR_LEN; } #endif #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27) netif_addr_unlock_bh(dev); #endif memset(&ioc, 0, sizeof(ioc)); ioc.cmd = WLC_SET_VAR; ioc.buf = buf; ioc.len = buflen; ioc.set = TRUE; ret = dhd_wl_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len); if (ret < 0) { DHD_ERROR(("%s: set mcast_list failed, cnt %d\n", dhd_ifname(&dhd->pub, ifidx), cnt)); allmulti = cnt ? TRUE : allmulti; } MFREE(dhd->pub.osh, buf, buflen); /* Now send the allmulti setting. This is based on the setting in the * net_device flags, but might be modified above to be turned on if we * were trying to set some addresses and dongle rejected it... */ buflen = sizeof("allmulti") + sizeof(allmulti); if (!(buf = MALLOC(dhd->pub.osh, buflen))) { DHD_ERROR(("%s: out of memory for allmulti\n", dhd_ifname(&dhd->pub, ifidx))); return; } allmulti = htol32(allmulti); if (!bcm_mkiovar("allmulti", (void*)&allmulti, sizeof(allmulti), buf, buflen)) { DHD_ERROR(("%s: mkiovar failed for allmulti, datalen %d buflen %u\n", dhd_ifname(&dhd->pub, ifidx), (int)sizeof(allmulti), buflen)); MFREE(dhd->pub.osh, buf, buflen); return; } memset(&ioc, 0, sizeof(ioc)); ioc.cmd = WLC_SET_VAR; ioc.buf = buf; ioc.len = buflen; ioc.set = TRUE; ret = dhd_wl_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len); if (ret < 0) { DHD_ERROR(("%s: set allmulti %d failed\n", dhd_ifname(&dhd->pub, ifidx), ltoh32(allmulti))); } MFREE(dhd->pub.osh, buf, buflen); /* Finally, pick up the PROMISC flag as well, like the NIC driver does */ allmulti = (dev->flags & IFF_PROMISC) ? TRUE : FALSE; allmulti = htol32(allmulti); memset(&ioc, 0, sizeof(ioc)); ioc.cmd = WLC_SET_PROMISC; ioc.buf = &allmulti; ioc.len = sizeof(allmulti); ioc.set = TRUE; ret = dhd_wl_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len); if (ret < 0) { DHD_ERROR(("%s: set promisc %d failed\n", dhd_ifname(&dhd->pub, ifidx), ltoh32(allmulti))); } } static int _dhd_set_mac_address(dhd_info_t *dhd, int ifidx, struct ether_addr *addr) { char buf[32]; wl_ioctl_t ioc; int ret; if (!bcm_mkiovar("cur_etheraddr", (char*)addr, ETHER_ADDR_LEN, buf, 32)) { DHD_ERROR(("%s: mkiovar failed for cur_etheraddr\n", dhd_ifname(&dhd->pub, ifidx))); return -1; } memset(&ioc, 0, sizeof(ioc)); ioc.cmd = WLC_SET_VAR; ioc.buf = buf; ioc.len = 32; ioc.set = TRUE; ret = dhd_wl_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len); if (ret < 0) { DHD_ERROR(("%s: set cur_etheraddr failed\n", dhd_ifname(&dhd->pub, ifidx))); } else { memcpy(dhd->iflist[ifidx]->net->dev_addr, addr, ETHER_ADDR_LEN); memcpy(dhd->pub.mac.octet, addr, ETHER_ADDR_LEN); } return ret; } #ifdef SOFTAP extern struct net_device *ap_net_dev; extern tsk_ctl_t ap_eth_ctl; /* ap netdev heper thread ctl */ #endif static void dhd_op_if(dhd_if_t *ifp) { dhd_info_t *dhd; int ret = 0, err = 0; #ifdef SOFTAP unsigned long flags; #endif if (!ifp || !ifp->info || !ifp->idx) return; ASSERT(ifp && ifp->info && ifp->idx); /* Virtual interfaces only */ dhd = ifp->info; DHD_TRACE(("%s: idx %d, state %d\n", __FUNCTION__, ifp->idx, ifp->state)); #ifdef WL_CFG80211 if (wl_cfg80211_is_progress_ifchange()) return; #endif switch (ifp->state) { case DHD_IF_ADD: /* * Delete the existing interface before overwriting it * in case we missed the WLC_E_IF_DEL event. */ if (ifp->net != NULL) { DHD_ERROR(("%s: ERROR: netdev:%s already exists, try free & unregister \n", __FUNCTION__, ifp->net->name)); netif_stop_queue(ifp->net); unregister_netdev(ifp->net); free_netdev(ifp->net); } /* Allocate etherdev, including space for private structure */ if (!(ifp->net = alloc_etherdev(sizeof(dhd)))) { DHD_ERROR(("%s: OOM - alloc_etherdev\n", __FUNCTION__)); ret = -ENOMEM; } if (ret == 0) { strncpy(ifp->net->name, ifp->name, IFNAMSIZ); ifp->net->name[IFNAMSIZ - 1] = '\0'; memcpy(netdev_priv(ifp->net), &dhd, sizeof(dhd)); #ifdef WL_CFG80211 if (dhd->dhd_state & DHD_ATTACH_STATE_CFG80211) if (!wl_cfg80211_notify_ifadd(ifp->net, ifp->idx, ifp->bssidx, (void*)dhd_net_attach)) { ifp->state = DHD_IF_NONE; return; } #endif if ((err = dhd_net_attach(&dhd->pub, ifp->idx)) != 0) { DHD_ERROR(("%s: dhd_net_attach failed, err %d\n", __FUNCTION__, err)); ret = -EOPNOTSUPP; } else { #if defined(SOFTAP) if (ap_fw_loaded && !(dhd->dhd_state & DHD_ATTACH_STATE_CFG80211)) { /* semaphore that the soft AP CODE waits on */ flags = dhd_os_spin_lock(&dhd->pub); /* save ptr to wl0.1 netdev for use in wl_iw.c */ ap_net_dev = ifp->net; /* signal to the SOFTAP 'sleeper' thread, wl0.1 is ready */ up(&ap_eth_ctl.sema); dhd_os_spin_unlock(&dhd->pub, flags); } #endif DHD_TRACE(("\n ==== pid:%x, net_device for if:%s created ===\n\n", current->pid, ifp->net->name)); ifp->state = DHD_IF_NONE; } } break; case DHD_IF_DEL: /* Make sure that we don't enter again here if .. */ /* dhd_op_if is called again from some other context */ ifp->state = DHD_IF_DELETING; if (ifp->net != NULL) { DHD_TRACE(("\n%s: got 'DHD_IF_DEL' state\n", __FUNCTION__)); #ifdef WL_CFG80211 if (dhd->dhd_state & DHD_ATTACH_STATE_CFG80211) { wl_cfg80211_notify_ifdel(ifp->net); } #endif netif_stop_queue(ifp->net); unregister_netdev(ifp->net); ret = DHD_DEL_IF; /* Make sure the free_netdev() is called */ } break; case DHD_IF_DELETING: break; default: DHD_ERROR(("%s: bad op %d\n", __FUNCTION__, ifp->state)); ASSERT(!ifp->state); break; } if (ret < 0) { ifp->set_multicast = FALSE; if (ifp->net) { free_netdev(ifp->net); ifp->net = NULL; } dhd->iflist[ifp->idx] = NULL; #ifdef SOFTAP flags = dhd_os_spin_lock(&dhd->pub); if (ifp->net == ap_net_dev) ap_net_dev = NULL; /* NULL SOFTAP global wl0.1 as well */ dhd_os_spin_unlock(&dhd->pub, flags); #endif /* SOFTAP */ MFREE(dhd->pub.osh, ifp, sizeof(*ifp)); } } static int _dhd_sysioc_thread(void *data) { tsk_ctl_t *tsk = (tsk_ctl_t *)data; dhd_info_t *dhd = (dhd_info_t *)tsk->parent; int i; #ifdef SOFTAP bool in_ap = FALSE; unsigned long flags; #endif DAEMONIZE("dhd_sysioc"); complete(&tsk->completed); while (down_interruptible(&tsk->sema) == 0) { SMP_RD_BARRIER_DEPENDS(); if (tsk->terminated) { break; } dhd_net_if_lock_local(dhd); DHD_OS_WAKE_LOCK(&dhd->pub); for (i = 0; i < DHD_MAX_IFS; i++) { if (dhd->iflist[i]) { DHD_TRACE(("%s: interface %d\n", __FUNCTION__, i)); #ifdef SOFTAP flags = dhd_os_spin_lock(&dhd->pub); in_ap = (ap_net_dev != NULL); dhd_os_spin_unlock(&dhd->pub, flags); #endif /* SOFTAP */ if (dhd->iflist[i] && dhd->iflist[i]->state) dhd_op_if(dhd->iflist[i]); if (dhd->iflist[i] == NULL) { DHD_TRACE(("\n\n %s: interface %d just been removed," "!\n\n", __FUNCTION__, i)); continue; } #ifdef SOFTAP if (in_ap && dhd->set_macaddress) { DHD_TRACE(("attempt to set MAC for %s in AP Mode," "blocked. \n", dhd->iflist[i]->net->name)); dhd->set_macaddress = FALSE; continue; } if (in_ap && dhd->iflist[i]->set_multicast) { DHD_TRACE(("attempt to set MULTICAST list for %s" "in AP Mode, blocked. \n", dhd->iflist[i]->net->name)); dhd->iflist[i]->set_multicast = FALSE; continue; } #endif /* SOFTAP */ if (dhd->iflist[i]->set_multicast) { dhd->iflist[i]->set_multicast = FALSE; _dhd_set_multicast_list(dhd, i); } if (dhd->set_macaddress) { dhd->set_macaddress = FALSE; _dhd_set_mac_address(dhd, i, &dhd->macvalue); } } } DHD_OS_WAKE_UNLOCK(&dhd->pub); dhd_net_if_unlock_local(dhd); } DHD_TRACE(("%s: stopped\n", __FUNCTION__)); complete_and_exit(&tsk->completed, 0); } static int dhd_set_mac_address(struct net_device *dev, void *addr) { int ret = 0; dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); struct sockaddr *sa = (struct sockaddr *)addr; int ifidx; ifidx = dhd_net2idx(dhd, dev); if (ifidx == DHD_BAD_IF) return -1; ASSERT(dhd->thr_sysioc_ctl.thr_pid >= 0); memcpy(&dhd->macvalue, sa->sa_data, ETHER_ADDR_LEN); dhd->set_macaddress = TRUE; up(&dhd->thr_sysioc_ctl.sema); return ret; } static void dhd_set_multicast_list(struct net_device *dev) { dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); int ifidx; ifidx = dhd_net2idx(dhd, dev); if (ifidx == DHD_BAD_IF) return; ASSERT(dhd->thr_sysioc_ctl.thr_pid >= 0); dhd->iflist[ifidx]->set_multicast = TRUE; up(&dhd->thr_sysioc_ctl.sema); } #ifdef PROP_TXSTATUS int dhd_os_wlfc_block(dhd_pub_t *pub) { dhd_info_t *di = (dhd_info_t *)(pub->info); ASSERT(di != NULL); spin_lock_bh(&di->wlfc_spinlock); return 1; } int dhd_os_wlfc_unblock(dhd_pub_t *pub) { dhd_info_t *di = (dhd_info_t *)(pub->info); ASSERT(di != NULL); spin_unlock_bh(&di->wlfc_spinlock); return 1; } const uint8 wme_fifo2ac[] = { 0, 1, 2, 3, 1, 1 }; uint8 prio2fifo[8] = { 1, 0, 0, 1, 2, 2, 3, 3 }; #define WME_PRIO2AC(prio) wme_fifo2ac[prio2fifo[(prio)]] #endif /* PROP_TXSTATUS */ int dhd_sendpkt(dhd_pub_t *dhdp, int ifidx, void *pktbuf) { int ret; dhd_info_t *dhd = (dhd_info_t *)(dhdp->info); struct ether_header *eh = NULL; /* Reject if down */ if (!dhdp->up || (dhdp->busstate == DHD_BUS_DOWN)) { /* free the packet here since the caller won't */ PKTFREE(dhdp->osh, pktbuf, TRUE); return -ENODEV; } /* Update multicast statistic */ if (PKTLEN(dhdp->osh, pktbuf) >= ETHER_HDR_LEN) { uint8 *pktdata = (uint8 *)PKTDATA(dhdp->osh, pktbuf); eh = (struct ether_header *)pktdata; if (ETHER_ISMULTI(eh->ether_dhost)) dhdp->tx_multicast++; if (ntoh16(eh->ether_type) == ETHER_TYPE_802_1X) atomic_inc(&dhd->pend_8021x_cnt); } else { PKTFREE(dhd->pub.osh, pktbuf, TRUE); return BCME_ERROR; } /* Look into the packet and update the packet priority */ if (PKTPRIO(pktbuf) == 0) pktsetprio(pktbuf, FALSE); #ifdef PROP_TXSTATUS if (dhdp->wlfc_state) { /* store the interface ID */ DHD_PKTTAG_SETIF(PKTTAG(pktbuf), ifidx); /* store destination MAC in the tag as well */ DHD_PKTTAG_SETDSTN(PKTTAG(pktbuf), eh->ether_dhost); /* decide which FIFO this packet belongs to */ if (ETHER_ISMULTI(eh->ether_dhost)) /* one additional queue index (highest AC + 1) is used for bc/mc queue */ DHD_PKTTAG_SETFIFO(PKTTAG(pktbuf), AC_COUNT); else DHD_PKTTAG_SETFIFO(PKTTAG(pktbuf), WME_PRIO2AC(PKTPRIO(pktbuf))); } else #endif /* PROP_TXSTATUS */ /* If the protocol uses a data header, apply it */ dhd_prot_hdrpush(dhdp, ifidx, pktbuf); /* Use bus module to send data frame */ #ifdef WLMEDIA_HTSF dhd_htsf_addtxts(dhdp, pktbuf); #endif #ifdef PROP_TXSTATUS if (dhdp->wlfc_state && ((athost_wl_status_info_t*)dhdp->wlfc_state)->proptxstatus_mode != WLFC_FCMODE_NONE) { dhd_os_wlfc_block(dhdp); ret = dhd_wlfc_enque_sendq(dhdp->wlfc_state, DHD_PKTTAG_FIFO(PKTTAG(pktbuf)), pktbuf); dhd_wlfc_commit_packets(dhdp->wlfc_state, (f_commitpkt_t)dhd_bus_txdata, dhdp->bus); if (((athost_wl_status_info_t*)dhdp->wlfc_state)->toggle_host_if) { ((athost_wl_status_info_t*)dhdp->wlfc_state)->toggle_host_if = 0; } dhd_os_wlfc_unblock(dhdp); } else /* non-proptxstatus way */ ret = dhd_bus_txdata(dhdp->bus, pktbuf); #else ret = dhd_bus_txdata(dhdp->bus, pktbuf); #endif /* PROP_TXSTATUS */ return ret; } int dhd_start_xmit(struct sk_buff *skb, struct net_device *net) { int ret; void *pktbuf; dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(net); int ifidx; #ifdef WLMEDIA_HTSF uint8 htsfdlystat_sz = dhd->pub.htsfdlystat_sz; #else uint8 htsfdlystat_sz = 0; #endif DHD_TRACE(("%s: Enter\n", __FUNCTION__)); DHD_OS_WAKE_LOCK(&dhd->pub); /* Reject if down */ if (!dhd->pub.up || (dhd->pub.busstate == DHD_BUS_DOWN)) { DHD_ERROR(("%s: xmit rejected pub.up=%d busstate=%d \n", __FUNCTION__, dhd->pub.up, dhd->pub.busstate)); netif_stop_queue(net); #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) /* Send Event when bus down detected during data session */ if (dhd->pub.busstate == DHD_BUS_DOWN) { DHD_ERROR(("%s: Event HANG sent up\n", __FUNCTION__)); net_os_send_hang_message(net); } #endif DHD_OS_WAKE_UNLOCK(&dhd->pub); return -ENODEV; } ifidx = dhd_net2idx(dhd, net); if (ifidx == DHD_BAD_IF) { DHD_ERROR(("%s: bad ifidx %d\n", __FUNCTION__, ifidx)); netif_stop_queue(net); DHD_OS_WAKE_UNLOCK(&dhd->pub); return -ENODEV; } /* Make sure there's enough room for any header */ if (skb_headroom(skb) < dhd->pub.hdrlen + htsfdlystat_sz) { struct sk_buff *skb2; DHD_INFO(("%s: insufficient headroom\n", dhd_ifname(&dhd->pub, ifidx))); dhd->pub.tx_realloc++; skb2 = skb_realloc_headroom(skb, dhd->pub.hdrlen + htsfdlystat_sz); dev_kfree_skb(skb); if ((skb = skb2) == NULL) { DHD_ERROR(("%s: skb_realloc_headroom failed\n", dhd_ifname(&dhd->pub, ifidx))); ret = -ENOMEM; goto done; } } /* Convert to packet */ if (!(pktbuf = PKTFRMNATIVE(dhd->pub.osh, skb))) { DHD_ERROR(("%s: PKTFRMNATIVE failed\n", dhd_ifname(&dhd->pub, ifidx))); dev_kfree_skb_any(skb); ret = -ENOMEM; goto done; } #ifdef WLMEDIA_HTSF if (htsfdlystat_sz && PKTLEN(dhd->pub.osh, pktbuf) >= ETHER_ADDR_LEN) { uint8 *pktdata = (uint8 *)PKTDATA(dhd->pub.osh, pktbuf); struct ether_header *eh = (struct ether_header *)pktdata; if (!ETHER_ISMULTI(eh->ether_dhost) && (ntoh16(eh->ether_type) == ETHER_TYPE_IP)) { eh->ether_type = hton16(ETHER_TYPE_BRCM_PKTDLYSTATS); } } #endif ret = dhd_sendpkt(&dhd->pub, ifidx, pktbuf); done: if (ret) dhd->pub.dstats.tx_dropped++; else dhd->pub.tx_packets++; DHD_OS_WAKE_UNLOCK(&dhd->pub); /* Return ok: we always eat the packet */ return 0; } void dhd_txflowcontrol(dhd_pub_t *dhdp, int ifidx, bool state) { struct net_device *net; dhd_info_t *dhd = dhdp->info; int i; DHD_TRACE(("%s: Enter\n", __FUNCTION__)); dhdp->txoff = state; ASSERT(dhd); if (ifidx == ALL_INTERFACES) { /* Flow control on all active interfaces */ for (i = 0; i < DHD_MAX_IFS; i++) { if (dhd->iflist[i]) { net = dhd->iflist[i]->net; if (state == ON) netif_stop_queue(net); else netif_wake_queue(net); } } } else { if (dhd->iflist[ifidx]) { net = dhd->iflist[ifidx]->net; if (state == ON) netif_stop_queue(net); else netif_wake_queue(net); } } } void dhd_rx_frame(dhd_pub_t *dhdp, int ifidx, void *pktbuf, int numpkt, uint8 chan) { dhd_info_t *dhd = (dhd_info_t *)dhdp->info; struct sk_buff *skb; uchar *eth; uint len; void *data, *pnext = NULL, *save_pktbuf; int i; dhd_if_t *ifp; wl_event_msg_t event; int tout_rx = 0; int tout_ctrl = 0; DHD_TRACE(("%s: Enter\n", __FUNCTION__)); save_pktbuf = pktbuf; for (i = 0; pktbuf && i < numpkt; i++, pktbuf = pnext) { struct ether_header *eh; struct dot11_llc_snap_header *lsh; ifp = dhd->iflist[ifidx]; if (ifp == NULL) { DHD_ERROR(("%s: ifp is NULL. drop packet\n", __FUNCTION__)); PKTFREE(dhdp->osh, pktbuf, TRUE); continue; } #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0) /* Dropping packets before registering net device to avoid kernel panic */ if (!ifp->net || ifp->net->reg_state != NETREG_REGISTERED || !dhd->pub.up) { DHD_ERROR(("%s: net device is NOT registered yet. drop packet\n", __FUNCTION__)); PKTFREE(dhdp->osh, pktbuf, TRUE); continue; } #endif pnext = PKTNEXT(dhdp->osh, pktbuf); PKTSETNEXT(wl->sh.osh, pktbuf, NULL); eh = (struct ether_header *)PKTDATA(wl->sh.osh, pktbuf); lsh = (struct dot11_llc_snap_header *)&eh[1]; if ((ntoh16(eh->ether_type) < ETHER_TYPE_MIN) && (PKTLEN(wl->sh.osh, pktbuf) >= RFC1042_HDR_LEN) && bcmp(lsh, BT_SIG_SNAP_MPROT, DOT11_LLC_SNAP_HDR_LEN - 2) == 0 && lsh->type == HTON16(BTA_PROT_L2CAP)) { amp_hci_ACL_data_t *ACL_data = (amp_hci_ACL_data_t *) ((uint8 *)eh + RFC1042_HDR_LEN); ACL_data = NULL; } #ifdef PROP_TXSTATUS if (dhdp->wlfc_state && PKTLEN(wl->sh.osh, pktbuf) == 0) { /* WLFC may send header only packet when there is an urgent message but no packet to piggy-back on */ ((athost_wl_status_info_t*)dhdp->wlfc_state)->stats.wlfc_header_only_pkt++; PKTFREE(dhdp->osh, pktbuf, TRUE); continue; } #endif skb = PKTTONATIVE(dhdp->osh, pktbuf); /* Get the protocol, maintain skb around eth_type_trans() * The main reason for this hack is for the limitation of * Linux 2.4 where 'eth_type_trans' uses the 'net->hard_header_len' * to perform skb_pull inside vs ETH_HLEN. Since to avoid * coping of the packet coming from the network stack to add * BDC, Hardware header etc, during network interface registration * we set the 'net->hard_header_len' to ETH_HLEN + extra space required * for BDC, Hardware header etc. and not just the ETH_HLEN */ eth = skb->data; len = skb->len; ifp = dhd->iflist[ifidx]; if (ifp == NULL) ifp = dhd->iflist[0]; ASSERT(ifp); skb->dev = ifp->net; skb->protocol = eth_type_trans(skb, skb->dev); if (skb->pkt_type == PACKET_MULTICAST) { dhd->pub.rx_multicast++; } skb->data = eth; skb->len = len; #ifdef WLMEDIA_HTSF dhd_htsf_addrxts(dhdp, pktbuf); #endif /* Strip header, count, deliver upward */ skb_pull(skb, ETH_HLEN); /* Process special event packets and then discard them */ if (ntoh16(skb->protocol) == ETHER_TYPE_BRCM) { dhd_wl_host_event(dhd, &ifidx, #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 22) skb->mac_header, #else skb->mac.raw, #endif &event, &data); wl_event_to_host_order(&event); if (!tout_ctrl) tout_ctrl = DHD_PACKET_TIMEOUT_MS; if (event.event_type == WLC_E_BTA_HCI_EVENT) { dhd_bta_doevt(dhdp, data, event.datalen); } else if (event.event_type == WLC_E_PFN_NET_FOUND) { tout_ctrl *= 2; } } else { tout_rx = DHD_PACKET_TIMEOUT_MS; } ASSERT(ifidx < DHD_MAX_IFS && dhd->iflist[ifidx]); if (dhd->iflist[ifidx] && !dhd->iflist[ifidx]->state) ifp = dhd->iflist[ifidx]; if (ifp->net) ifp->net->last_rx = jiffies; dhdp->dstats.rx_bytes += skb->len; dhdp->rx_packets++; /* Local count */ if (in_interrupt()) { netif_rx(skb); } else { /* If the receive is not processed inside an ISR, * the softirqd must be woken explicitly to service * the NET_RX_SOFTIRQ. In 2.6 kernels, this is handled * by netif_rx_ni(), but in earlier kernels, we need * to do it manually. */ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0) netif_rx_ni(skb); #else ulong flags; netif_rx(skb); local_irq_save(flags); RAISE_RX_SOFTIRQ(); local_irq_restore(flags); #endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0) */ } } DHD_OS_WAKE_LOCK_RX_TIMEOUT_ENABLE(dhdp, tout_rx); DHD_OS_WAKE_LOCK_CTRL_TIMEOUT_ENABLE(dhdp, tout_ctrl); } void dhd_event(struct dhd_info *dhd, char *evpkt, int evlen, int ifidx) { /* Linux version has nothing to do */ return; } void dhd_txcomplete(dhd_pub_t *dhdp, void *txp, bool success) { uint ifidx; dhd_info_t *dhd = (dhd_info_t *)(dhdp->info); struct ether_header *eh; uint16 type; uint len; dhd_prot_hdrpull(dhdp, &ifidx, txp); eh = (struct ether_header *)PKTDATA(dhdp->osh, txp); type = ntoh16(eh->ether_type); if (type == ETHER_TYPE_802_1X) atomic_dec(&dhd->pend_8021x_cnt); /* Crack open the packet and check to see if it is BT HCI ACL data packet. * If yes generate packet completion event. */ len = PKTLEN(dhdp->osh, txp); /* Generate ACL data tx completion event locally to avoid SDIO bus transaction */ if ((type < ETHER_TYPE_MIN) && (len >= RFC1042_HDR_LEN)) { struct dot11_llc_snap_header *lsh = (struct dot11_llc_snap_header *)&eh[1]; if (bcmp(lsh, BT_SIG_SNAP_MPROT, DOT11_LLC_SNAP_HDR_LEN - 2) == 0 && ntoh16(lsh->type) == BTA_PROT_L2CAP) { dhd_bta_tx_hcidata_complete(dhdp, txp, success); } } } static struct net_device_stats * dhd_get_stats(struct net_device *net) { dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(net); dhd_if_t *ifp; int ifidx; DHD_TRACE(("%s: Enter\n", __FUNCTION__)); ifidx = dhd_net2idx(dhd, net); if (ifidx == DHD_BAD_IF) { DHD_ERROR(("%s: BAD_IF\n", __FUNCTION__)); return NULL; } ifp = dhd->iflist[ifidx]; ASSERT(dhd && ifp); if (dhd->pub.up) { /* Use the protocol to get dongle stats */ dhd_prot_dstats(&dhd->pub); } /* Copy dongle stats to net device stats */ ifp->stats.rx_packets = dhd->pub.dstats.rx_packets; ifp->stats.tx_packets = dhd->pub.dstats.tx_packets; ifp->stats.rx_bytes = dhd->pub.dstats.rx_bytes; ifp->stats.tx_bytes = dhd->pub.dstats.tx_bytes; ifp->stats.rx_errors = dhd->pub.dstats.rx_errors; ifp->stats.tx_errors = dhd->pub.dstats.tx_errors; ifp->stats.rx_dropped = dhd->pub.dstats.rx_dropped; ifp->stats.tx_dropped = dhd->pub.dstats.tx_dropped; ifp->stats.multicast = dhd->pub.dstats.multicast; return &ifp->stats; } #ifdef DHDTHREAD static int dhd_watchdog_thread(void *data) { tsk_ctl_t *tsk = (tsk_ctl_t *)data; dhd_info_t *dhd = (dhd_info_t *)tsk->parent; /* This thread doesn't need any user-level access, * so get rid of all our resources */ if (dhd_watchdog_prio > 0) { struct sched_param param; param.sched_priority = (dhd_watchdog_prio < MAX_RT_PRIO)? dhd_watchdog_prio:(MAX_RT_PRIO-1); setScheduler(current, SCHED_FIFO, ¶m); } DAEMONIZE("dhd_watchdog"); /* Run until signal received */ complete(&tsk->completed); while (1) if (down_interruptible (&tsk->sema) == 0) { unsigned long flags; SMP_RD_BARRIER_DEPENDS(); if (tsk->terminated) { break; } dhd_os_sdlock(&dhd->pub); if (dhd->pub.dongle_reset == FALSE) { DHD_TIMER(("%s:\n", __FUNCTION__)); /* Call the bus module watchdog */ dhd_bus_watchdog(&dhd->pub); flags = dhd_os_spin_lock(&dhd->pub); /* Count the tick for reference */ dhd->pub.tickcnt++; /* Reschedule the watchdog */ if (dhd->wd_timer_valid) mod_timer(&dhd->timer, jiffies + dhd_watchdog_ms * HZ / 1000); dhd_os_spin_unlock(&dhd->pub, flags); } dhd_os_sdunlock(&dhd->pub); DHD_OS_WAKE_UNLOCK(&dhd->pub); } else { break; } complete_and_exit(&tsk->completed, 0); } #endif /* DHDTHREAD */ static void dhd_watchdog(ulong data) { dhd_info_t *dhd = (dhd_info_t *)data; unsigned long flags; DHD_OS_WAKE_LOCK(&dhd->pub); if (dhd->pub.dongle_reset) { DHD_OS_WAKE_UNLOCK(&dhd->pub); return; } #ifdef DHDTHREAD if (dhd->thr_wdt_ctl.thr_pid >= 0) { up(&dhd->thr_wdt_ctl.sema); return; } #endif /* DHDTHREAD */ dhd_os_sdlock(&dhd->pub); /* Call the bus module watchdog */ dhd_bus_watchdog(&dhd->pub); flags = dhd_os_spin_lock(&dhd->pub); /* Count the tick for reference */ dhd->pub.tickcnt++; /* Reschedule the watchdog */ if (dhd->wd_timer_valid) mod_timer(&dhd->timer, jiffies + dhd_watchdog_ms * HZ / 1000); dhd_os_spin_unlock(&dhd->pub, flags); dhd_os_sdunlock(&dhd->pub); DHD_OS_WAKE_UNLOCK(&dhd->pub); } #ifdef DHDTHREAD static int dhd_dpc_thread(void *data) { tsk_ctl_t *tsk = (tsk_ctl_t *)data; dhd_info_t *dhd = (dhd_info_t *)tsk->parent; /* This thread doesn't need any user-level access, * so get rid of all our resources */ if (dhd_dpc_prio > 0) { struct sched_param param; param.sched_priority = (dhd_dpc_prio < MAX_RT_PRIO)?dhd_dpc_prio:(MAX_RT_PRIO-1); setScheduler(current, SCHED_FIFO, ¶m); } DAEMONIZE("dhd_dpc"); /* DHD_OS_WAKE_LOCK is called in dhd_sched_dpc[dhd_linux.c] down below */ /* signal: thread has started */ complete(&tsk->completed); /* Run until signal received */ while (1) { if (down_interruptible(&tsk->sema) == 0) { SMP_RD_BARRIER_DEPENDS(); if (tsk->terminated) { break; } /* Call bus dpc unless it indicated down (then clean stop) */ if (dhd->pub.busstate != DHD_BUS_DOWN) { if (dhd_bus_dpc(dhd->pub.bus)) { up(&tsk->sema); } else { DHD_OS_WAKE_UNLOCK(&dhd->pub); } } else { if (dhd->pub.up) dhd_bus_stop(dhd->pub.bus, TRUE); DHD_OS_WAKE_UNLOCK(&dhd->pub); } } else break; } complete_and_exit(&tsk->completed, 0); } #endif /* DHDTHREAD */ static void dhd_dpc(ulong data) { dhd_info_t *dhd; dhd = (dhd_info_t *)data; /* this (tasklet) can be scheduled in dhd_sched_dpc[dhd_linux.c] * down below , wake lock is set, * the tasklet is initialized in dhd_attach() */ /* Call bus dpc unless it indicated down (then clean stop) */ if (dhd->pub.busstate != DHD_BUS_DOWN) { if (dhd_bus_dpc(dhd->pub.bus)) tasklet_schedule(&dhd->tasklet); else DHD_OS_WAKE_UNLOCK(&dhd->pub); } else { dhd_bus_stop(dhd->pub.bus, TRUE); DHD_OS_WAKE_UNLOCK(&dhd->pub); } } void dhd_sched_dpc(dhd_pub_t *dhdp) { dhd_info_t *dhd = (dhd_info_t *)dhdp->info; DHD_OS_WAKE_LOCK(dhdp); #ifdef DHDTHREAD if (dhd->thr_dpc_ctl.thr_pid >= 0) { up(&dhd->thr_dpc_ctl.sema); return; } #endif /* DHDTHREAD */ tasklet_schedule(&dhd->tasklet); } #ifdef TOE /* Retrieve current toe component enables, which are kept as a bitmap in toe_ol iovar */ static int dhd_toe_get(dhd_info_t *dhd, int ifidx, uint32 *toe_ol) { wl_ioctl_t ioc; char buf[32]; int ret; memset(&ioc, 0, sizeof(ioc)); ioc.cmd = WLC_GET_VAR; ioc.buf = buf; ioc.len = (uint)sizeof(buf); ioc.set = FALSE; strcpy(buf, "toe_ol"); if ((ret = dhd_wl_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len)) < 0) { /* Check for older dongle image that doesn't support toe_ol */ if (ret == -EIO) { DHD_ERROR(("%s: toe not supported by device\n", dhd_ifname(&dhd->pub, ifidx))); return -EOPNOTSUPP; } DHD_INFO(("%s: could not get toe_ol: ret=%d\n", dhd_ifname(&dhd->pub, ifidx), ret)); return ret; } memcpy(toe_ol, buf, sizeof(uint32)); return 0; } /* Set current toe component enables in toe_ol iovar, and set toe global enable iovar */ static int dhd_toe_set(dhd_info_t *dhd, int ifidx, uint32 toe_ol) { wl_ioctl_t ioc; char buf[32]; int toe, ret; memset(&ioc, 0, sizeof(ioc)); ioc.cmd = WLC_SET_VAR; ioc.buf = buf; ioc.len = (uint)sizeof(buf); ioc.set = TRUE; /* Set toe_ol as requested */ strcpy(buf, "toe_ol"); memcpy(&buf[sizeof("toe_ol")], &toe_ol, sizeof(uint32)); if ((ret = dhd_wl_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len)) < 0) { DHD_ERROR(("%s: could not set toe_ol: ret=%d\n", dhd_ifname(&dhd->pub, ifidx), ret)); return ret; } /* Enable toe globally only if any components are enabled. */ toe = (toe_ol != 0); strcpy(buf, "toe"); memcpy(&buf[sizeof("toe")], &toe, sizeof(uint32)); if ((ret = dhd_wl_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len)) < 0) { DHD_ERROR(("%s: could not set toe: ret=%d\n", dhd_ifname(&dhd->pub, ifidx), ret)); return ret; } return 0; } #endif /* TOE */ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24) static void dhd_ethtool_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info) { dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(net); sprintf(info->driver, "wl"); sprintf(info->version, "%lu", dhd->pub.drv_version); } struct ethtool_ops dhd_ethtool_ops = { .get_drvinfo = dhd_ethtool_get_drvinfo }; #endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24) */ #if LINUX_VERSION_CODE > KERNEL_VERSION(2, 4, 2) static int dhd_ethtool(dhd_info_t *dhd, void *uaddr) { struct ethtool_drvinfo info; char drvname[sizeof(info.driver)]; uint32 cmd; #ifdef TOE struct ethtool_value edata; uint32 toe_cmpnt, csum_dir; int ret; #endif DHD_TRACE(("%s: Enter\n", __FUNCTION__)); /* all ethtool calls start with a cmd word */ if (copy_from_user(&cmd, uaddr, sizeof (uint32))) return -EFAULT; switch (cmd) { case ETHTOOL_GDRVINFO: /* Copy out any request driver name */ if (copy_from_user(&info, uaddr, sizeof(info))) return -EFAULT; strncpy(drvname, info.driver, sizeof(info.driver)); drvname[sizeof(info.driver)-1] = '\0'; /* clear struct for return */ memset(&info, 0, sizeof(info)); info.cmd = cmd; /* if dhd requested, identify ourselves */ if (strcmp(drvname, "?dhd") == 0) { sprintf(info.driver, "dhd"); strcpy(info.version, EPI_VERSION_STR); } /* otherwise, require dongle to be up */ else if (!dhd->pub.up) { DHD_ERROR(("%s: dongle is not up\n", __FUNCTION__)); return -ENODEV; } /* finally, report dongle driver type */ else if (dhd->pub.iswl) sprintf(info.driver, "wl"); else sprintf(info.driver, "xx"); sprintf(info.version, "%lu", dhd->pub.drv_version); if (copy_to_user(uaddr, &info, sizeof(info))) return -EFAULT; DHD_CTL(("%s: given %*s, returning %s\n", __FUNCTION__, (int)sizeof(drvname), drvname, info.driver)); break; #ifdef TOE /* Get toe offload components from dongle */ case ETHTOOL_GRXCSUM: case ETHTOOL_GTXCSUM: if ((ret = dhd_toe_get(dhd, 0, &toe_cmpnt)) < 0) return ret; csum_dir = (cmd == ETHTOOL_GTXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL; edata.cmd = cmd; edata.data = (toe_cmpnt & csum_dir) ? 1 : 0; if (copy_to_user(uaddr, &edata, sizeof(edata))) return -EFAULT; break; /* Set toe offload components in dongle */ case ETHTOOL_SRXCSUM: case ETHTOOL_STXCSUM: if (copy_from_user(&edata, uaddr, sizeof(edata))) return -EFAULT; /* Read the current settings, update and write back */ if ((ret = dhd_toe_get(dhd, 0, &toe_cmpnt)) < 0) return ret; csum_dir = (cmd == ETHTOOL_STXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL; if (edata.data != 0) toe_cmpnt |= csum_dir; else toe_cmpnt &= ~csum_dir; if ((ret = dhd_toe_set(dhd, 0, toe_cmpnt)) < 0) return ret; /* If setting TX checksum mode, tell Linux the new mode */ if (cmd == ETHTOOL_STXCSUM) { if (edata.data) dhd->iflist[0]->net->features |= NETIF_F_IP_CSUM; else dhd->iflist[0]->net->features &= ~NETIF_F_IP_CSUM; } break; #endif /* TOE */ default: return -EOPNOTSUPP; } return 0; } #endif /* LINUX_VERSION_CODE > KERNEL_VERSION(2, 4, 2) */ static bool dhd_check_hang(struct net_device *net, dhd_pub_t *dhdp, int error) { #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) if (!dhdp) return FALSE; if ((error == -ETIMEDOUT) || ((dhdp->busstate == DHD_BUS_DOWN) && (!dhdp->dongle_reset))) { DHD_ERROR(("%s: Event HANG send up due to re=%d te=%d e=%d s=%d\n", __FUNCTION__, dhdp->rxcnt_timeout, dhdp->txcnt_timeout, error, dhdp->busstate)); net_os_send_hang_message(net); return TRUE; } #endif return FALSE; } static int dhd_ioctl_entry(struct net_device *net, struct ifreq *ifr, int cmd) { dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(net); dhd_ioctl_t ioc; int bcmerror = 0; int buflen = 0; void *buf = NULL; uint driver = 0; int ifidx; int ret; DHD_OS_WAKE_LOCK(&dhd->pub); /* send to dongle only if we are not waiting for reload already */ if (dhd->pub.hang_was_sent) { DHD_ERROR(("%s: HANG was sent up earlier\n", __FUNCTION__)); DHD_OS_WAKE_LOCK_CTRL_TIMEOUT_ENABLE(&dhd->pub, DHD_EVENT_TIMEOUT_MS); DHD_OS_WAKE_UNLOCK(&dhd->pub); return OSL_ERROR(BCME_DONGLE_DOWN); } ifidx = dhd_net2idx(dhd, net); DHD_TRACE(("%s: ifidx %d, cmd 0x%04x\n", __FUNCTION__, ifidx, cmd)); if (ifidx == DHD_BAD_IF) { DHD_ERROR(("%s: BAD IF\n", __FUNCTION__)); DHD_OS_WAKE_UNLOCK(&dhd->pub); return -1; } #if defined(CONFIG_BCMDHD_WEXT) /* linux wireless extensions */ if ((cmd >= SIOCIWFIRST) && (cmd <= SIOCIWLAST)) { /* may recurse, do NOT lock */ ret = wl_iw_ioctl(net, ifr, cmd); DHD_OS_WAKE_UNLOCK(&dhd->pub); return ret; } #endif /* defined(CONFIG_BCMDHD_WEXT) */ #if LINUX_VERSION_CODE > KERNEL_VERSION(2, 4, 2) if (cmd == SIOCETHTOOL) { ret = dhd_ethtool(dhd, (void*)ifr->ifr_data); DHD_OS_WAKE_UNLOCK(&dhd->pub); return ret; } #endif /* LINUX_VERSION_CODE > KERNEL_VERSION(2, 4, 2) */ if (cmd == SIOCDEVPRIVATE+1) { ret = wl_android_priv_cmd(net, ifr, cmd); dhd_check_hang(net, &dhd->pub, ret); DHD_OS_WAKE_UNLOCK(&dhd->pub); return ret; } if (cmd != SIOCDEVPRIVATE) { DHD_OS_WAKE_UNLOCK(&dhd->pub); return -EOPNOTSUPP; } memset(&ioc, 0, sizeof(ioc)); /* Copy the ioc control structure part of ioctl request */ if (copy_from_user(&ioc, ifr->ifr_data, sizeof(wl_ioctl_t))) { bcmerror = -BCME_BADADDR; goto done; } /* Copy out any buffer passed */ if (ioc.buf) { buflen = MIN(ioc.len, DHD_IOCTL_MAXLEN); /* optimization for direct ioctl calls from kernel */ /* if (segment_eq(get_fs(), KERNEL_DS)) { buf = ioc.buf; } else { */ { if (!(buf = (char*)MALLOC(dhd->pub.osh, buflen))) { bcmerror = -BCME_NOMEM; goto done; } if (copy_from_user(buf, ioc.buf, buflen)) { bcmerror = -BCME_BADADDR; goto done; } } } /* To differentiate between wl and dhd read 4 more byes */ if ((copy_from_user(&driver, (char *)ifr->ifr_data + sizeof(wl_ioctl_t), sizeof(uint)) != 0)) { bcmerror = -BCME_BADADDR; goto done; } if (!capable(CAP_NET_ADMIN)) { bcmerror = -BCME_EPERM; goto done; } /* check for local dhd ioctl and handle it */ if (driver == DHD_IOCTL_MAGIC) { bcmerror = dhd_ioctl((void *)&dhd->pub, &ioc, buf, buflen); if (bcmerror) dhd->pub.bcmerror = bcmerror; goto done; } /* send to dongle (must be up, and wl). */ if (dhd->pub.busstate != DHD_BUS_DATA) { bcmerror = BCME_DONGLE_DOWN; goto done; } if (!dhd->pub.iswl) { bcmerror = BCME_DONGLE_DOWN; goto done; } /* * Flush the TX queue if required for proper message serialization: * Intercept WLC_SET_KEY IOCTL - serialize M4 send and set key IOCTL to * prevent M4 encryption and * intercept WLC_DISASSOC IOCTL - serialize WPS-DONE and WLC_DISASSOC IOCTL to * prevent disassoc frame being sent before WPS-DONE frame. */ if (ioc.cmd == WLC_SET_KEY || (ioc.cmd == WLC_SET_VAR && ioc.buf != NULL && strncmp("wsec_key", ioc.buf, 9) == 0) || (ioc.cmd == WLC_SET_VAR && ioc.buf != NULL && strncmp("bsscfg:wsec_key", ioc.buf, 15) == 0) || ioc.cmd == WLC_DISASSOC) dhd_wait_pend8021x(net); #ifdef WLMEDIA_HTSF if (ioc.buf) { /* short cut wl ioctl calls here */ if (strcmp("htsf", ioc.buf) == 0) { dhd_ioctl_htsf_get(dhd, 0); return BCME_OK; } if (strcmp("htsflate", ioc.buf) == 0) { if (ioc.set) { memset(ts, 0, sizeof(tstamp_t)*TSMAX); memset(&maxdelayts, 0, sizeof(tstamp_t)); maxdelay = 0; tspktcnt = 0; maxdelaypktno = 0; memset(&vi_d1.bin, 0, sizeof(uint32)*NUMBIN); memset(&vi_d2.bin, 0, sizeof(uint32)*NUMBIN); memset(&vi_d3.bin, 0, sizeof(uint32)*NUMBIN); memset(&vi_d4.bin, 0, sizeof(uint32)*NUMBIN); } else { dhd_dump_latency(); } return BCME_OK; } if (strcmp("htsfclear", ioc.buf) == 0) { memset(&vi_d1.bin, 0, sizeof(uint32)*NUMBIN); memset(&vi_d2.bin, 0, sizeof(uint32)*NUMBIN); memset(&vi_d3.bin, 0, sizeof(uint32)*NUMBIN); memset(&vi_d4.bin, 0, sizeof(uint32)*NUMBIN); htsf_seqnum = 0; return BCME_OK; } if (strcmp("htsfhis", ioc.buf) == 0) { dhd_dump_htsfhisto(&vi_d1, "H to D"); dhd_dump_htsfhisto(&vi_d2, "D to D"); dhd_dump_htsfhisto(&vi_d3, "D to H"); dhd_dump_htsfhisto(&vi_d4, "H to H"); return BCME_OK; } if (strcmp("tsport", ioc.buf) == 0) { if (ioc.set) { memcpy(&tsport, ioc.buf + 7, 4); } else { DHD_ERROR(("current timestamp port: %d \n", tsport)); } return BCME_OK; } } #endif /* WLMEDIA_HTSF */ bcmerror = dhd_wl_ioctl(&dhd->pub, ifidx, (wl_ioctl_t *)&ioc, buf, buflen); done: dhd_check_hang(net, &dhd->pub, bcmerror); if (!bcmerror && buf && ioc.buf) { if (copy_to_user(ioc.buf, buf, buflen)) bcmerror = -EFAULT; } if (buf) MFREE(dhd->pub.osh, buf, buflen); DHD_OS_WAKE_UNLOCK(&dhd->pub); return OSL_ERROR(bcmerror); } #ifdef WL_CFG80211 static int dhd_cleanup_virt_ifaces(dhd_info_t *dhd) { int i = 1; /* Leave ifidx 0 [Primary Interface] */ #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) int rollback_lock = FALSE; #endif DHD_TRACE(("%s: Enter \n", __func__)); #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) /* release lock for unregister_netdev */ if (rtnl_is_locked()) { rtnl_unlock(); rollback_lock = TRUE; } #endif for (i = 1; i < DHD_MAX_IFS; i++) { dhd_net_if_lock_local(dhd); if (dhd->iflist[i]) { DHD_TRACE(("Deleting IF: %d \n", i)); if ((dhd->iflist[i]->state != DHD_IF_DEL) && (dhd->iflist[i]->state != DHD_IF_DELETING)) { dhd->iflist[i]->state = DHD_IF_DEL; dhd->iflist[i]->idx = i; dhd_op_if(dhd->iflist[i]); } } dhd_net_if_unlock_local(dhd); } #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) if (rollback_lock) rtnl_lock(); #endif return 0; } #endif /* WL_CFG80211 */ static int dhd_stop(struct net_device *net) { int ifidx = 0; dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(net); DHD_OS_WAKE_LOCK(&dhd->pub); DHD_TRACE(("%s: Enter %p\n", __FUNCTION__, net)); if (dhd->pub.up == 0) { goto exit; } ifidx = dhd_net2idx(dhd, net); #ifdef WL_CFG80211 if (ifidx == 0) { wl_cfg80211_down(NULL); /* * For CFG80211: Clean up all the left over virtual interfaces * when the primary Interface is brought down. [ifconfig wlan0 down] */ if ((dhd->dhd_state & DHD_ATTACH_STATE_ADD_IF) && (dhd->dhd_state & DHD_ATTACH_STATE_CFG80211)) { dhd_cleanup_virt_ifaces(dhd); } } #endif #ifdef PROP_TXSTATUS dhd_wlfc_cleanup(&dhd->pub); #endif /* Set state and stop OS transmissions */ dhd->pub.up = 0; netif_stop_queue(net); /* Stop the protocol module */ dhd_prot_stop(&dhd->pub); OLD_MOD_DEC_USE_COUNT; exit: #if defined(WL_CFG80211) if (ifidx == 0 && !dhd_download_fw_on_driverload) wl_android_wifi_off(net); #endif dhd->pub.rxcnt_timeout = 0; dhd->pub.txcnt_timeout = 0; DHD_OS_WAKE_UNLOCK(&dhd->pub); return 0; } static int dhd_open(struct net_device *net) { dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(net); #ifdef TOE uint32 toe_ol; #endif int ifidx; int32 ret = 0; DHD_OS_WAKE_LOCK(&dhd->pub); /* Update FW path if it was changed */ if ((firmware_path != NULL) && (firmware_path[0] != '\0')) { if (firmware_path[strlen(firmware_path)-1] == '\n') firmware_path[strlen(firmware_path)-1] = '\0'; strcpy(fw_path, firmware_path); firmware_path[0] = '\0'; } dhd->pub.hang_was_sent = 0; #if !defined(WL_CFG80211) /* * Force start if ifconfig_up gets called before START command * We keep WEXT's wl_control_wl_start to provide backward compatibility * This should be removed in the future */ ret = wl_control_wl_start(net); if (ret != 0) { DHD_ERROR(("%s: failed with code %d\n", __FUNCTION__, ret)); ret = -1; goto exit; } #endif ifidx = dhd_net2idx(dhd, net); DHD_TRACE(("%s: ifidx %d\n", __FUNCTION__, ifidx)); if (ifidx < 0) { DHD_ERROR(("%s: Error: called with invalid IF\n", __FUNCTION__)); ret = -1; goto exit; } if (!dhd->iflist[ifidx] || dhd->iflist[ifidx]->state == DHD_IF_DEL) { DHD_ERROR(("%s: Error: called when IF already deleted\n", __FUNCTION__)); ret = -1; goto exit; } if (ifidx == 0) { atomic_set(&dhd->pend_8021x_cnt, 0); #if defined(WL_CFG80211) DHD_ERROR(("\n%s\n", dhd_version)); if (!dhd_download_fw_on_driverload) { ret = wl_android_wifi_on(net); if (ret != 0) { DHD_ERROR(("%s: failed with code %d\n", __FUNCTION__, ret)); ret = -1; goto exit; } } #endif /* defined(WL_CFG80211) */ if (dhd->pub.busstate != DHD_BUS_DATA) { /* try to bring up bus */ if ((ret = dhd_bus_start(&dhd->pub)) != 0) { DHD_ERROR(("%s: failed with code %d\n", __FUNCTION__, ret)); ret = -1; goto exit; } } /* dhd_prot_init has been called in dhd_bus_start or wl_android_wifi_on */ memcpy(net->dev_addr, dhd->pub.mac.octet, ETHER_ADDR_LEN); #ifdef TOE /* Get current TOE mode from dongle */ if (dhd_toe_get(dhd, ifidx, &toe_ol) >= 0 && (toe_ol & TOE_TX_CSUM_OL) != 0) dhd->iflist[ifidx]->net->features |= NETIF_F_IP_CSUM; else dhd->iflist[ifidx]->net->features &= ~NETIF_F_IP_CSUM; #endif /* TOE */ #if defined(WL_CFG80211) if (unlikely(wl_cfg80211_up(NULL))) { DHD_ERROR(("%s: failed to bring up cfg80211\n", __FUNCTION__)); ret = -1; goto exit; } #endif /* WL_CFG80211 */ } /* Allow transmit calls */ netif_start_queue(net); dhd->pub.up = 1; #ifdef BCMDBGFS dhd_dbg_init(&dhd->pub); #endif OLD_MOD_INC_USE_COUNT; exit: DHD_OS_WAKE_UNLOCK(&dhd->pub); return ret; } int dhd_do_driver_init(struct net_device *net) { dhd_info_t *dhd = NULL; if (!net) { DHD_ERROR(("Primary Interface not initialized \n")); return -EINVAL; } dhd = *(dhd_info_t **)netdev_priv(net); /* If driver is already initialized, do nothing */ if (dhd->pub.busstate == DHD_BUS_DATA) { DHD_TRACE(("Driver already Inititalized. Nothing to do")); return 0; } if (dhd_open(net) < 0) { DHD_ERROR(("Driver Init Failed \n")); return -1; } return 0; } osl_t * dhd_osl_attach(void *pdev, uint bustype) { return osl_attach(pdev, bustype, TRUE); } void dhd_osl_detach(osl_t *osh) { if (MALLOCED(osh)) { DHD_ERROR(("%s: MEMORY LEAK %d bytes\n", __FUNCTION__, MALLOCED(osh))); } osl_detach(osh); #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) up(&dhd_registration_sem); #endif } int dhd_add_if(dhd_info_t *dhd, int ifidx, void *handle, char *name, uint8 *mac_addr, uint32 flags, uint8 bssidx) { dhd_if_t *ifp; DHD_TRACE(("%s: idx %d, handle->%p\n", __FUNCTION__, ifidx, handle)); ASSERT(dhd && (ifidx < DHD_MAX_IFS)); ifp = dhd->iflist[ifidx]; if (ifp != NULL) { if (ifp->net != NULL) { netif_stop_queue(ifp->net); unregister_netdev(ifp->net); free_netdev(ifp->net); } } else if ((ifp = MALLOC(dhd->pub.osh, sizeof(dhd_if_t))) == NULL) { DHD_ERROR(("%s: OOM - dhd_if_t\n", __FUNCTION__)); return -ENOMEM; } memset(ifp, 0, sizeof(dhd_if_t)); ifp->info = dhd; dhd->iflist[ifidx] = ifp; strncpy(ifp->name, name, IFNAMSIZ); ifp->name[IFNAMSIZ] = '\0'; if (mac_addr != NULL) memcpy(&ifp->mac_addr, mac_addr, ETHER_ADDR_LEN); if (handle == NULL) { ifp->state = DHD_IF_ADD; ifp->idx = ifidx; ifp->bssidx = bssidx; ASSERT(dhd->thr_sysioc_ctl.thr_pid >= 0); up(&dhd->thr_sysioc_ctl.sema); } else ifp->net = (struct net_device *)handle; return 0; } void dhd_del_if(dhd_info_t *dhd, int ifidx) { dhd_if_t *ifp; DHD_TRACE(("%s: idx %d\n", __FUNCTION__, ifidx)); ASSERT(dhd && ifidx && (ifidx < DHD_MAX_IFS)); ifp = dhd->iflist[ifidx]; if (!ifp) { DHD_ERROR(("%s: Null interface\n", __FUNCTION__)); return; } ifp->state = DHD_IF_DEL; ifp->idx = ifidx; ASSERT(dhd->thr_sysioc_ctl.thr_pid >= 0); up(&dhd->thr_sysioc_ctl.sema); } #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 31)) static struct net_device_ops dhd_ops_pri = { .ndo_open = dhd_open, .ndo_stop = dhd_stop, .ndo_get_stats = dhd_get_stats, .ndo_do_ioctl = dhd_ioctl_entry, .ndo_start_xmit = dhd_start_xmit, .ndo_set_mac_address = dhd_set_mac_address, .ndo_set_multicast_list = dhd_set_multicast_list, }; static struct net_device_ops dhd_ops_virt = { .ndo_get_stats = dhd_get_stats, .ndo_do_ioctl = dhd_ioctl_entry, .ndo_start_xmit = dhd_start_xmit, .ndo_set_mac_address = dhd_set_mac_address, .ndo_set_multicast_list = dhd_set_multicast_list, }; #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 31)) */ dhd_pub_t * dhd_attach(osl_t *osh, struct dhd_bus *bus, uint bus_hdrlen, void *dev) { dhd_info_t *dhd = NULL; struct net_device *net = NULL; dhd_attach_states_t dhd_state = DHD_ATTACH_STATE_INIT; DHD_TRACE(("%s: Enter\n", __FUNCTION__)); /* updates firmware nvram path if it was provided as module parameters */ if ((firmware_path != NULL) && (firmware_path[0] != '\0')) strcpy(fw_path, firmware_path); if ((nvram_path != NULL) && (nvram_path[0] != '\0')) strcpy(nv_path, nvram_path); /* Allocate etherdev, including space for private structure */ if (!(net = alloc_etherdev(sizeof(dhd)))) { DHD_ERROR(("%s: OOM - alloc_etherdev\n", __FUNCTION__)); goto fail; } dhd_state |= DHD_ATTACH_STATE_NET_ALLOC; SET_NETDEV_DEV(net, (struct device *)dev); /* Allocate primary dhd_info */ if (!(dhd = MALLOC(osh, sizeof(dhd_info_t)))) { DHD_ERROR(("%s: OOM - alloc dhd_info\n", __FUNCTION__)); goto fail; } memset(dhd, 0, sizeof(dhd_info_t)); #ifdef DHDTHREAD dhd->thr_dpc_ctl.thr_pid = DHD_PID_KT_TL_INVALID; dhd->thr_wdt_ctl.thr_pid = DHD_PID_KT_INVALID; #else dhd->dhd_tasklet_create = FALSE; #endif /* DHDTHREAD */ dhd->thr_sysioc_ctl.thr_pid = DHD_PID_KT_INVALID; dhd_state |= DHD_ATTACH_STATE_DHD_ALLOC; /* * Save the dhd_info into the priv */ memcpy((void *)netdev_priv(net), &dhd, sizeof(dhd)); dhd->pub.osh = osh; /* Link to info module */ dhd->pub.info = dhd; /* Link to bus module */ dhd->pub.bus = bus; dhd->pub.hdrlen = bus_hdrlen; /* Set network interface name if it was provided as module parameter */ if (iface_name[0]) { int len; char ch; strncpy(net->name, iface_name, IFNAMSIZ); net->name[IFNAMSIZ - 1] = 0; len = strlen(net->name); ch = net->name[len - 1]; if ((ch > '9' || ch < '0') && (len < IFNAMSIZ - 2)) strcat(net->name, "%d"); } if (dhd_add_if(dhd, 0, (void *)net, net->name, NULL, 0, 0) == DHD_BAD_IF) goto fail; dhd_state |= DHD_ATTACH_STATE_ADD_IF; #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31)) net->open = NULL; #else net->netdev_ops = NULL; #endif sema_init(&dhd->proto_sem, 1); #ifdef PROP_TXSTATUS spin_lock_init(&dhd->wlfc_spinlock); dhd->pub.wlfc_enabled = TRUE; #endif /* PROP_TXSTATUS */ /* Initialize other structure content */ init_waitqueue_head(&dhd->ioctl_resp_wait); init_waitqueue_head(&dhd->ctrl_wait); /* Initialize the spinlocks */ spin_lock_init(&dhd->sdlock); spin_lock_init(&dhd->txqlock); spin_lock_init(&dhd->dhd_lock); /* Initialize Wakelock stuff */ spin_lock_init(&dhd->wakelock_spinlock); dhd->wakelock_counter = 0; dhd->wakelock_rx_timeout_enable = 0; dhd->wakelock_ctrl_timeout_enable = 0; #ifdef CONFIG_HAS_WAKELOCK wake_lock_init(&dhd->wl_wifi, WAKE_LOCK_SUSPEND, "wlan_wake"); wake_lock_init(&dhd->wl_rxwake, WAKE_LOCK_SUSPEND, "wlan_rx_wake"); wake_lock_init(&dhd->wl_ctrlwake, WAKE_LOCK_SUSPEND, "wlan_ctrl_wake"); #endif #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) mutex_init(&dhd->dhd_net_if_mutex); mutex_init(&dhd->dhd_suspend_mutex); #endif dhd_state |= DHD_ATTACH_STATE_WAKELOCKS_INIT; /* Attach and link in the protocol */ if (dhd_prot_attach(&dhd->pub) != 0) { DHD_ERROR(("dhd_prot_attach failed\n")); goto fail; } dhd_state |= DHD_ATTACH_STATE_PROT_ATTACH; #ifdef WL_CFG80211 /* Attach and link in the cfg80211 */ if (unlikely(wl_cfg80211_attach(net, &dhd->pub))) { DHD_ERROR(("wl_cfg80211_attach failed\n")); goto fail; } dhd_monitor_init(&dhd->pub); dhd_state |= DHD_ATTACH_STATE_CFG80211; #endif #if defined(CONFIG_BCMDHD_WEXT) /* Attach and link in the iw */ if (!(dhd_state & DHD_ATTACH_STATE_CFG80211)) { if (wl_iw_attach(net, (void *)&dhd->pub) != 0) { DHD_ERROR(("wl_iw_attach failed\n")); goto fail; } dhd_state |= DHD_ATTACH_STATE_WL_ATTACH; } #endif /* defined(CONFIG_BCMDHD_WEXT) */ /* Set up the watchdog timer */ init_timer(&dhd->timer); dhd->timer.data = (ulong)dhd; dhd->timer.function = dhd_watchdog; #ifdef DHDTHREAD /* Initialize thread based operation and lock */ sema_init(&dhd->sdsem, 1); if ((dhd_watchdog_prio >= 0) && (dhd_dpc_prio >= 0)) { dhd->threads_only = TRUE; } else { dhd->threads_only = FALSE; } if (dhd_dpc_prio >= 0) { /* Initialize watchdog thread */ PROC_START(dhd_watchdog_thread, dhd, &dhd->thr_wdt_ctl, 0); } else { dhd->thr_wdt_ctl.thr_pid = -1; } /* Set up the bottom half handler */ if (dhd_dpc_prio >= 0) { /* Initialize DPC thread */ PROC_START(dhd_dpc_thread, dhd, &dhd->thr_dpc_ctl, 0); } else { /* use tasklet for dpc */ tasklet_init(&dhd->tasklet, dhd_dpc, (ulong)dhd); dhd->thr_dpc_ctl.thr_pid = -1; } #else /* Set up the bottom half handler */ tasklet_init(&dhd->tasklet, dhd_dpc, (ulong)dhd); dhd->dhd_tasklet_create = TRUE; #endif /* DHDTHREAD */ if (dhd_sysioc) { PROC_START(_dhd_sysioc_thread, dhd, &dhd->thr_sysioc_ctl, 0); } else { dhd->thr_sysioc_ctl.thr_pid = -1; } dhd_state |= DHD_ATTACH_STATE_THREADS_CREATED; /* * Save the dhd_info into the priv */ memcpy(netdev_priv(net), &dhd, sizeof(dhd)); #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) register_pm_notifier(&dhd_sleep_pm_notifier); #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) */ #if defined(CONFIG_HAS_EARLYSUSPEND) && defined(DHD_USE_EARLYSUSPEND) dhd->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 20; dhd->early_suspend.suspend = dhd_early_suspend; dhd->early_suspend.resume = dhd_late_resume; register_early_suspend(&dhd->early_suspend); dhd_state |= DHD_ATTACH_STATE_EARLYSUSPEND_DONE; #endif #ifdef ARP_OFFLOAD_SUPPORT dhd->pend_ipaddr = 0; register_inetaddr_notifier(&dhd_notifier); #endif /* ARP_OFFLOAD_SUPPORT */ dhd_state |= DHD_ATTACH_STATE_DONE; dhd->dhd_state = dhd_state; return &dhd->pub; fail: if (dhd_state < DHD_ATTACH_STATE_DHD_ALLOC) { if (net) free_netdev(net); } else { DHD_TRACE(("%s: Calling dhd_detach dhd_state 0x%x &dhd->pub %p\n", __FUNCTION__, dhd_state, &dhd->pub)); dhd->dhd_state = dhd_state; dhd_detach(&dhd->pub); dhd_free(&dhd->pub); } return NULL; } int dhd_bus_start(dhd_pub_t *dhdp) { int ret = -1; dhd_info_t *dhd = (dhd_info_t*)dhdp->info; unsigned long flags; ASSERT(dhd); DHD_TRACE(("Enter %s:\n", __FUNCTION__)); #ifdef DHDTHREAD if (dhd->threads_only) dhd_os_sdlock(dhdp); #endif /* DHDTHREAD */ /* try to download image and nvram to the dongle */ if ((dhd->pub.busstate == DHD_BUS_DOWN) && (fw_path != NULL) && (fw_path[0] != '\0') && (nv_path != NULL) && (nv_path[0] != '\0')) { /* wake lock moved to dhdsdio_download_firmware */ if (!(dhd_bus_download_firmware(dhd->pub.bus, dhd->pub.osh, fw_path, nv_path))) { DHD_ERROR(("%s: dhdsdio_probe_download failed. firmware = %s nvram = %s\n", __FUNCTION__, fw_path, nv_path)); #ifdef DHDTHREAD if (dhd->threads_only) dhd_os_sdunlock(dhdp); #endif /* DHDTHREAD */ return -1; } } if (dhd->pub.busstate != DHD_BUS_LOAD) { #ifdef DHDTHREAD if (dhd->threads_only) dhd_os_sdunlock(dhdp); #endif /* DHDTHREAD */ return -ENETDOWN; } /* Start the watchdog timer */ dhd->pub.tickcnt = 0; dhd_os_wd_timer(&dhd->pub, dhd_watchdog_ms); /* Bring up the bus */ if ((ret = dhd_bus_init(&dhd->pub, FALSE)) != 0) { DHD_ERROR(("%s, dhd_bus_init failed %d\n", __FUNCTION__, ret)); #ifdef DHDTHREAD if (dhd->threads_only) dhd_os_sdunlock(dhdp); #endif /* DHDTHREAD */ return ret; } #if defined(OOB_INTR_ONLY) /* Host registration for OOB interrupt */ if (bcmsdh_register_oob_intr(dhdp)) { /* deactivate timer and wait for the handler to finish */ flags = dhd_os_spin_lock(&dhd->pub); dhd->wd_timer_valid = FALSE; dhd_os_spin_unlock(&dhd->pub, flags); del_timer_sync(&dhd->timer); DHD_ERROR(("%s Host failed to register for OOB\n", __FUNCTION__)); #ifdef DHDTHREAD if (dhd->threads_only) dhd_os_sdunlock(dhdp); #endif /* DHDTHREAD */ return -ENODEV; } /* Enable oob at firmware */ dhd_enable_oob_intr(dhd->pub.bus, TRUE); #endif /* defined(OOB_INTR_ONLY) */ /* If bus is not ready, can't come up */ if (dhd->pub.busstate != DHD_BUS_DATA) { flags = dhd_os_spin_lock(&dhd->pub); dhd->wd_timer_valid = FALSE; dhd_os_spin_unlock(&dhd->pub, flags); del_timer_sync(&dhd->timer); DHD_ERROR(("%s failed bus is not ready\n", __FUNCTION__)); #ifdef DHDTHREAD if (dhd->threads_only) dhd_os_sdunlock(dhdp); #endif /* DHDTHREAD */ return -ENODEV; } #ifdef DHDTHREAD if (dhd->threads_only) dhd_os_sdunlock(dhdp); #endif /* DHDTHREAD */ #ifdef READ_MACADDR dhd_read_macaddr(dhd); #endif /* Bus is ready, do any protocol initialization */ if ((ret = dhd_prot_init(&dhd->pub)) < 0) return ret; #ifdef WRITE_MACADDR dhd_write_macaddr(dhd->pub.mac.octet); #endif #ifdef ARP_OFFLOAD_SUPPORT if (dhd->pend_ipaddr) { #ifdef AOE_IP_ALIAS_SUPPORT aoe_update_host_ipv4_table(&dhd->pub, dhd->pend_ipaddr, TRUE); #endif /* AOE_IP_ALIAS_SUPPORT */ dhd->pend_ipaddr = 0; } #endif /* ARP_OFFLOAD_SUPPORT */ return 0; } #if !defined(AP) && defined(WLP2P) && defined(WL_ENABLE_P2P_IF) /* For Android ICS MR2 release, the concurrent mode is enabled by default and the firmware * name would be fw_bcmdhd.bin. So we need to determine whether P2P is enabled in the STA * firmware and accordingly enable concurrent mode (Apply P2P settings). SoftAP firmware * would still be named as fw_bcmdhd_apsta. */ static u32 dhd_concurrent_fw(dhd_pub_t *dhd) { int ret = 0; char buf[WLC_IOCTL_SMLEN]; if ((!op_mode) && (strstr(fw_path, "_p2p") == NULL) && (strstr(fw_path, "_apsta") == NULL)) { /* Given path is for the STA firmware. Check whether P2P support is present in * the firmware. If so, set mode as P2P (concurrent support). */ memset(buf, 0, sizeof(buf)); bcm_mkiovar("p2p", 0, 0, buf, sizeof(buf)); if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_GET_VAR, buf, sizeof(buf), FALSE, 0)) < 0) { DHD_TRACE(("%s: Get P2P failed (error=%d)\n", __FUNCTION__, ret)); } else if (buf[0] == 1) { DHD_TRACE(("%s: P2P is supported\n", __FUNCTION__)); return 1; } } return 0; } #endif int dhd_preinit_ioctls(dhd_pub_t *dhd) { int ret = 0; char eventmask[WL_EVENTING_MASK_LEN]; char iovbuf[WL_EVENTING_MASK_LEN + 12]; /* Room for "event_msgs" + '\0' + bitvec */ uint up = 0; uint power_mode = PM_FAST; uint32 dongle_align = DHD_SDALIGN; uint32 glom = 0; uint bcn_timeout = 10; uint retry_max = 3; #if defined(ARP_OFFLOAD_SUPPORT) int arpoe = 1; #endif #if defined(KEEP_ALIVE) int res; #endif /* defined(KEEP_ALIVE) */ int scan_assoc_time = DHD_SCAN_ACTIVE_TIME; int scan_unassoc_time = 40; int scan_passive_time = DHD_SCAN_PASSIVE_TIME; char buf[WLC_IOCTL_SMLEN]; char *ptr; uint32 listen_interval = LISTEN_INTERVAL; /* Default Listen Interval in Beacons */ #if defined(SOFTAP) uint dtim = 1; #endif #if (defined(AP) && !defined(WLP2P)) || (!defined(AP) && defined(WL_CFG80211)) uint32 mpc = 0; /* Turn MPC off for AP/APSTA mode */ #endif #if defined(AP) || (defined(WLP2P) && defined(WL_ENABLE_P2P_IF)) uint32 apsta = 1; /* Enable APSTA mode */ #endif /* defined(AP) || defined(WLP2P) */ #ifdef GET_CUSTOM_MAC_ENABLE struct ether_addr ea_addr; #endif /* GET_CUSTOM_MAC_ENABLE */ DHD_TRACE(("Enter %s\n", __FUNCTION__)); dhd->op_mode = 0; #ifdef GET_CUSTOM_MAC_ENABLE ret = dhd_custom_get_mac_address(ea_addr.octet); if (!ret) { memset(buf, 0, sizeof(buf)); bcm_mkiovar("cur_etheraddr", (void *)&ea_addr, ETHER_ADDR_LEN, buf, sizeof(buf)); ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, buf, sizeof(buf), TRUE, 0); if (ret < 0) { DHD_ERROR(("%s: can't set MAC address , error=%d\n", __FUNCTION__, ret)); return BCME_NOTUP; } memcpy(dhd->mac.octet, ea_addr.octet, ETHER_ADDR_LEN); } else { #endif /* GET_CUSTOM_MAC_ENABLE */ /* Get the default device MAC address directly from firmware */ memset(buf, 0, sizeof(buf)); bcm_mkiovar("cur_etheraddr", 0, 0, buf, sizeof(buf)); if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_GET_VAR, buf, sizeof(buf), FALSE, 0)) < 0) { DHD_ERROR(("%s: can't get MAC address , error=%d\n", __FUNCTION__, ret)); return BCME_NOTUP; } /* Update public MAC address after reading from Firmware */ memcpy(dhd->mac.octet, buf, ETHER_ADDR_LEN); #ifdef GET_CUSTOM_MAC_ENABLE } #endif /* GET_CUSTOM_MAC_ENABLE */ #ifdef SET_RANDOM_MAC_SOFTAP if ((!op_mode && strstr(fw_path, "_apsta") != NULL) || (op_mode == 0x02)) { uint rand_mac; srandom32((uint)jiffies); rand_mac = random32(); iovbuf[0] = 0x02; /* locally administered bit */ iovbuf[1] = 0x1A; iovbuf[2] = 0x11; iovbuf[3] = (unsigned char)(rand_mac & 0x0F) | 0xF0; iovbuf[4] = (unsigned char)(rand_mac >> 8); iovbuf[5] = (unsigned char)(rand_mac >> 16); bcm_mkiovar("cur_etheraddr", (void *)iovbuf, ETHER_ADDR_LEN, buf, sizeof(buf)); ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, buf, sizeof(buf), TRUE, 0); if (ret < 0) { DHD_ERROR(("%s: can't set MAC address , error=%d\n", __FUNCTION__, ret)); } else memcpy(dhd->mac.octet, iovbuf, ETHER_ADDR_LEN); } #endif /* SET_RANDOM_MAC_SOFTAP */ DHD_TRACE(("Firmware = %s\n", fw_path)); #if !defined(AP) && defined(WLP2P) && defined(WL_ENABLE_P2P_IF) /* Check if firmware with WFD support used */ if ((!op_mode && strstr(fw_path, "_p2p") != NULL) || (op_mode == 0x04) || (dhd_concurrent_fw(dhd))) { bcm_mkiovar("apsta", (char *)&apsta, 4, iovbuf, sizeof(iovbuf)); if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0)) < 0) { DHD_ERROR(("%s APSTA for WFD failed ret= %d\n", __FUNCTION__, ret)); } else { dhd->op_mode |= WFD_MASK; #if defined(ARP_OFFLOAD_SUPPORT) arpoe = 0; #endif /* (ARP_OFFLOAD_SUPPORT) */ dhd_pkt_filter_enable = FALSE; } } #endif #if !defined(AP) && defined(WL_CFG80211) /* Check if firmware with HostAPD support used */ if ((!op_mode && strstr(fw_path, "_apsta") != NULL) || (op_mode == 0x02)) { /* Turn off wme if we are having only g ONLY firmware */ bcm_mkiovar("nmode", 0, 0, buf, sizeof(buf)); if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_GET_VAR, buf, sizeof(buf), FALSE, 0)) < 0) { DHD_ERROR(("%s:get nmode failed error (%d)\n", __FUNCTION__, ret)); } else { DHD_TRACE(("%s:get nmode returned %d\n", __FUNCTION__,buf[0])); } if (buf[0] == 0) { int wme = 0; bcm_mkiovar("wme", (char *)&wme, 4, iovbuf, sizeof(iovbuf)); if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0)) < 0) { DHD_ERROR(("%s set wme for HostAPD failed %d\n", __FUNCTION__, ret)); } else { DHD_TRACE(("%s set wme succeeded for g ONLY firmware\n", __FUNCTION__)); } } /* Turn off MPC in AP mode */ bcm_mkiovar("mpc", (char *)&mpc, 4, iovbuf, sizeof(iovbuf)); if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0)) < 0) { DHD_ERROR(("%s mpc for HostAPD failed %d\n", __FUNCTION__, ret)); } else { dhd->op_mode |= HOSTAPD_MASK; #if defined(ARP_OFFLOAD_SUPPORT) arpoe = 0; #endif /* (ARP_OFFLOAD_SUPPORT) */ dhd_pkt_filter_enable = FALSE; } } #endif if ((dhd->op_mode != WFD_MASK) && (dhd->op_mode != HOSTAPD_MASK)) { /* STA only operation mode */ dhd->op_mode |= STA_MASK; dhd_pkt_filter_enable = TRUE; } DHD_ERROR(("Firmware up: fw_path=%s op_mode=%d, " "Broadcom Dongle Host Driver mac=%.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n", fw_path, dhd->op_mode, dhd->mac.octet[0], dhd->mac.octet[1], dhd->mac.octet[2], dhd->mac.octet[3], dhd->mac.octet[4], dhd->mac.octet[5])); /* Set Country code */ if (dhd->dhd_cspec.ccode[0] != 0) { bcm_mkiovar("country", (char *)&dhd->dhd_cspec, sizeof(wl_country_t), iovbuf, sizeof(iovbuf)); if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0)) < 0) DHD_ERROR(("%s: country code setting failed\n", __FUNCTION__)); } /* Set Listen Interval */ bcm_mkiovar("assoc_listen", (char *)&listen_interval, 4, iovbuf, sizeof(iovbuf)); if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0)) < 0) DHD_ERROR(("%s assoc_listen failed %d\n", __FUNCTION__, ret)); /* Set PowerSave mode */ dhd_wl_ioctl_cmd(dhd, WLC_SET_PM, (char *)&power_mode, sizeof(power_mode), TRUE, 0); /* Match Host and Dongle rx alignment */ bcm_mkiovar("bus:txglomalign", (char *)&dongle_align, 4, iovbuf, sizeof(iovbuf)); dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0); /* disable glom option per default */ bcm_mkiovar("bus:txglom", (char *)&glom, 4, iovbuf, sizeof(iovbuf)); dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0); /* Setup timeout if Beacons are lost and roam is off to report link down */ bcm_mkiovar("bcn_timeout", (char *)&bcn_timeout, 4, iovbuf, sizeof(iovbuf)); dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0); /* Setup assoc_retry_max count to reconnect target AP in dongle */ bcm_mkiovar("assoc_retry_max", (char *)&retry_max, 4, iovbuf, sizeof(iovbuf)); dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0); #if defined(AP) && !defined(WLP2P) /* Turn off MPC in AP mode */ bcm_mkiovar("mpc", (char *)&mpc, 4, iovbuf, sizeof(iovbuf)); dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0); bcm_mkiovar("apsta", (char *)&apsta, 4, iovbuf, sizeof(iovbuf)); dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0); #endif /* defined(AP) && !defined(WLP2P) */ #if defined(SOFTAP) if (ap_fw_loaded == TRUE) { dhd_wl_ioctl_cmd(dhd, WLC_SET_DTIMPRD, (char *)&dtim, sizeof(dtim), TRUE, 0); } #endif #if defined(KEEP_ALIVE) /* Set Keep Alive : be sure to use FW with -keepalive */ #if defined(SOFTAP) if (ap_fw_loaded == FALSE) #endif if ((res = dhd_keep_alive_onoff(dhd)) < 0) DHD_ERROR(("%s set keeplive failed %d\n", __FUNCTION__, res)); #endif /* defined(KEEP_ALIVE) */ /* Read event_msgs mask */ bcm_mkiovar("event_msgs", eventmask, WL_EVENTING_MASK_LEN, iovbuf, sizeof(iovbuf)); if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_GET_VAR, iovbuf, sizeof(iovbuf), FALSE, 0)) < 0) { DHD_ERROR(("%s read Event mask failed %d\n", __FUNCTION__, ret)); goto done; } bcopy(iovbuf, eventmask, WL_EVENTING_MASK_LEN); /* Setup event_msgs */ setbit(eventmask, WLC_E_SET_SSID); setbit(eventmask, WLC_E_PRUNE); setbit(eventmask, WLC_E_AUTH); setbit(eventmask, WLC_E_REASSOC); setbit(eventmask, WLC_E_REASSOC_IND); setbit(eventmask, WLC_E_DEAUTH); setbit(eventmask, WLC_E_DEAUTH_IND); setbit(eventmask, WLC_E_DISASSOC_IND); setbit(eventmask, WLC_E_DISASSOC); setbit(eventmask, WLC_E_JOIN); setbit(eventmask, WLC_E_ASSOC_IND); setbit(eventmask, WLC_E_PSK_SUP); setbit(eventmask, WLC_E_LINK); setbit(eventmask, WLC_E_NDIS_LINK); setbit(eventmask, WLC_E_MIC_ERROR); setbit(eventmask, WLC_E_ASSOC_REQ_IE); setbit(eventmask, WLC_E_ASSOC_RESP_IE); setbit(eventmask, WLC_E_PMKID_CACHE); setbit(eventmask, WLC_E_JOIN_START); setbit(eventmask, WLC_E_SCAN_COMPLETE); #ifdef WLMEDIA_HTSF setbit(eventmask, WLC_E_HTSFSYNC); #endif /* WLMEDIA_HTSF */ #ifdef PNO_SUPPORT setbit(eventmask, WLC_E_PFN_NET_FOUND); #endif /* PNO_SUPPORT */ /* enable dongle roaming event */ setbit(eventmask, WLC_E_ROAM); #ifdef WL_CFG80211 setbit(eventmask, WLC_E_ESCAN_RESULT); if ((dhd->op_mode & WFD_MASK) == WFD_MASK) { setbit(eventmask, WLC_E_ACTION_FRAME_RX); setbit(eventmask, WLC_E_ACTION_FRAME_COMPLETE); setbit(eventmask, WLC_E_ACTION_FRAME_OFF_CHAN_COMPLETE); setbit(eventmask, WLC_E_P2P_PROBREQ_MSG); setbit(eventmask, WLC_E_P2P_DISC_LISTEN_COMPLETE); } #endif /* WL_CFG80211 */ /* Write updated Event mask */ bcm_mkiovar("event_msgs", eventmask, WL_EVENTING_MASK_LEN, iovbuf, sizeof(iovbuf)); if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0)) < 0) { DHD_ERROR(("%s Set Event mask failed %d\n", __FUNCTION__, ret)); goto done; } dhd_wl_ioctl_cmd(dhd, WLC_SET_SCAN_CHANNEL_TIME, (char *)&scan_assoc_time, sizeof(scan_assoc_time), TRUE, 0); dhd_wl_ioctl_cmd(dhd, WLC_SET_SCAN_UNASSOC_TIME, (char *)&scan_unassoc_time, sizeof(scan_unassoc_time), TRUE, 0); dhd_wl_ioctl_cmd(dhd, WLC_SET_SCAN_PASSIVE_TIME, (char *)&scan_passive_time, sizeof(scan_passive_time), TRUE, 0); #ifdef ARP_OFFLOAD_SUPPORT /* Set and enable ARP offload feature for STA only */ #if defined(SOFTAP) if (arpoe && !ap_fw_loaded) { #else if (arpoe) { #endif dhd_arp_offload_set(dhd, dhd_arp_mode); dhd_arp_offload_enable(dhd, arpoe); } else { dhd_arp_offload_set(dhd, 0); dhd_arp_offload_enable(dhd, FALSE); } #endif /* ARP_OFFLOAD_SUPPORT */ #ifdef PKT_FILTER_SUPPORT /* Setup defintions for pktfilter , enable in suspend */ dhd->pktfilter_count = 5; /* Setup filter to allow only unicast */ dhd->pktfilter[0] = "100 0 0 0 0x01 0x00"; dhd->pktfilter[1] = NULL; dhd->pktfilter[2] = NULL; dhd->pktfilter[3] = NULL; dhd->pktfilter[4] = "104 0 0 0 0xFFFFFFFFFFFF 0x01005E0000FB"; #if defined(SOFTAP) if (ap_fw_loaded) { int i; for (i = 0; i < dhd->pktfilter_count; i++) { dhd_pktfilter_offload_enable(dhd, dhd->pktfilter[i], 0, dhd_master_mode); } } #endif /* defined(SOFTAP) */ #endif /* PKT_FILTER_SUPPORT */ /* Force STA UP */ if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_UP, (char *)&up, sizeof(up), TRUE, 0)) < 0) { DHD_ERROR(("%s Setting WL UP failed %d\n", __FUNCTION__, ret)); goto done; } /* query for 'ver' to get version info from firmware */ memset(buf, 0, sizeof(buf)); ptr = buf; bcm_mkiovar("ver", (char *)&buf, 4, buf, sizeof(buf)); if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_GET_VAR, buf, sizeof(buf), FALSE, 0)) < 0) DHD_ERROR(("%s failed %d\n", __FUNCTION__, ret)); else { bcmstrtok(&ptr, "\n", 0); /* Print fw version info */ DHD_ERROR(("Firmware version = %s\n", buf)); DHD_BLOG(buf, strlen(buf) + 1); DHD_BLOG(dhd_version, strlen(dhd_version) + 1); } done: return ret; } int dhd_iovar(dhd_pub_t *pub, int ifidx, char *name, char *cmd_buf, uint cmd_len, int set) { char buf[strlen(name) + 1 + cmd_len]; int len = sizeof(buf); wl_ioctl_t ioc; int ret; len = bcm_mkiovar(name, cmd_buf, cmd_len, buf, len); memset(&ioc, 0, sizeof(ioc)); ioc.cmd = set? WLC_SET_VAR : WLC_GET_VAR; ioc.buf = buf; ioc.len = len; ioc.set = TRUE; ret = dhd_wl_ioctl(pub, ifidx, &ioc, ioc.buf, ioc.len); if (!set && ret >= 0) memcpy(cmd_buf, buf, cmd_len); return ret; } int dhd_change_mtu(dhd_pub_t *dhdp, int new_mtu, int ifidx) { struct dhd_info *dhd = dhdp->info; struct net_device *dev = NULL; ASSERT(dhd && dhd->iflist[ifidx]); dev = dhd->iflist[ifidx]->net; ASSERT(dev); if (netif_running(dev)) { DHD_ERROR(("%s: Must be down to change its MTU", dev->name)); return BCME_NOTDOWN; } #define DHD_MIN_MTU 1500 #define DHD_MAX_MTU 1752 if ((new_mtu < DHD_MIN_MTU) || (new_mtu > DHD_MAX_MTU)) { DHD_ERROR(("%s: MTU size %d is invalid.\n", __FUNCTION__, new_mtu)); return BCME_BADARG; } dev->mtu = new_mtu; return 0; } #ifdef ARP_OFFLOAD_SUPPORT /* add or remove AOE host ip(s) (up to 8 IPs on the interface) */ void aoe_update_host_ipv4_table(dhd_pub_t *dhd_pub, u32 ipa, bool add) { u32 ipv4_buf[MAX_IPV4_ENTRIES]; /* temp save for AOE host_ip table */ int i; int ret; bzero(ipv4_buf, sizeof(ipv4_buf)); /* display what we've got */ ret = dhd_arp_get_arp_hostip_table(dhd_pub, ipv4_buf, sizeof(ipv4_buf)); DHD_ARPOE(("%s: hostip table read from Dongle:\n", __FUNCTION__)); #ifdef AOE_DBG dhd_print_buf(ipv4_buf, 32, 4); /* max 8 IPs 4b each */ #endif /* now we saved hoste_ip table, clr it in the dongle AOE */ dhd_aoe_hostip_clr(dhd_pub); if (ret) { DHD_ERROR(("%s failed\n", __FUNCTION__)); return; } for (i = 0; i < MAX_IPV4_ENTRIES; i++) { if (add && (ipv4_buf[i] == 0)) { ipv4_buf[i] = ipa; add = FALSE; /* added ipa to local table */ DHD_ARPOE(("%s: Saved new IP in temp arp_hostip[%d]\n", __FUNCTION__, i)); } else if (ipv4_buf[i] == ipa) { ipv4_buf[i] = 0; DHD_ARPOE(("%s: removed IP:%x from temp table %d\n", __FUNCTION__, ipa, i)); } if (ipv4_buf[i] != 0) { /* add back host_ip entries from our local cache */ dhd_arp_offload_add_ip(dhd_pub, ipv4_buf[i]); DHD_ARPOE(("%s: added IP:%x to dongle arp_hostip[%d]\n\n", __FUNCTION__, ipv4_buf[i], i)); } } #ifdef AOE_DBG /* see the resulting hostip table */ dhd_arp_get_arp_hostip_table(dhd_pub, ipv4_buf, sizeof(ipv4_buf)); DHD_ARPOE(("%s: read back arp_hostip table:\n", __FUNCTION__)); dhd_print_buf(ipv4_buf, 32, 4); /* max 8 IPs 4b each */ #endif } static int dhd_device_event(struct notifier_block *this, unsigned long event, void *ptr) { struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; dhd_info_t *dhd; dhd_pub_t *dhd_pub; if (!ifa) return NOTIFY_DONE; dhd = *(dhd_info_t **)netdev_priv(ifa->ifa_dev->dev); dhd_pub = &dhd->pub; #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 31)) if (ifa->ifa_dev->dev->netdev_ops == &dhd_ops_pri) { #else if (ifa->ifa_dev->dev) { #endif switch (event) { case NETDEV_UP: DHD_ARPOE(("%s: [%s] Up IP: 0x%x\n", __FUNCTION__, ifa->ifa_label, ifa->ifa_address)); if (dhd->pub.busstate != DHD_BUS_DATA) { DHD_ERROR(("%s: bus not ready, exit\n", __FUNCTION__)); if (dhd->pend_ipaddr) { DHD_ERROR(("%s: overwrite pending ipaddr: 0x%x\n", __FUNCTION__, dhd->pend_ipaddr)); } dhd->pend_ipaddr = ifa->ifa_address; break; } #ifdef AOE_IP_ALIAS_SUPPORT if (ifa->ifa_label[strlen(ifa->ifa_label)-2] == 0x3a) { DHD_ARPOE(("%s:add aliased IP to AOE hostip cache\n", __FUNCTION__)); aoe_update_host_ipv4_table(dhd_pub, ifa->ifa_address, TRUE); } else aoe_update_host_ipv4_table(dhd_pub, ifa->ifa_address, TRUE); #endif break; case NETDEV_DOWN: DHD_ARPOE(("%s: [%s] Down IP: 0x%x\n", __FUNCTION__, ifa->ifa_label, ifa->ifa_address)); dhd->pend_ipaddr = 0; #ifdef AOE_IP_ALIAS_SUPPORT if (!(ifa->ifa_label[strlen(ifa->ifa_label)-2] == 0x3a)) { DHD_ARPOE(("%s: primary interface is down, AOE clr all\n", __FUNCTION__)); dhd_aoe_hostip_clr(&dhd->pub); dhd_aoe_arp_clr(&dhd->pub); } else aoe_update_host_ipv4_table(dhd_pub, ifa->ifa_address, FALSE); #else dhd_aoe_hostip_clr(&dhd->pub); dhd_aoe_arp_clr(&dhd->pub); #endif break; default: DHD_ARPOE(("%s: do noting for [%s] Event: %lu\n", __func__, ifa->ifa_label, event)); break; } } return NOTIFY_DONE; } #endif /* ARP_OFFLOAD_SUPPORT */ int dhd_net_attach(dhd_pub_t *dhdp, int ifidx) { dhd_info_t *dhd = (dhd_info_t *)dhdp->info; struct net_device *net = NULL; int err = 0; uint8 temp_addr[ETHER_ADDR_LEN] = { 0x00, 0x90, 0x4c, 0x11, 0x22, 0x33 }; DHD_TRACE(("%s: ifidx %d\n", __FUNCTION__, ifidx)); ASSERT(dhd && dhd->iflist[ifidx]); net = dhd->iflist[ifidx]->net; ASSERT(net); #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31)) ASSERT(!net->open); net->get_stats = dhd_get_stats; net->do_ioctl = dhd_ioctl_entry; net->hard_start_xmit = dhd_start_xmit; net->set_mac_address = dhd_set_mac_address; net->set_multicast_list = dhd_set_multicast_list; net->open = net->stop = NULL; #else ASSERT(!net->netdev_ops); net->netdev_ops = &dhd_ops_virt; #endif /* Ok, link into the network layer... */ if (ifidx == 0) { /* * device functions for the primary interface only */ #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31)) net->open = dhd_open; net->stop = dhd_stop; #else net->netdev_ops = &dhd_ops_pri; #endif } else { /* * We have to use the primary MAC for virtual interfaces */ memcpy(temp_addr, dhd->iflist[ifidx]->mac_addr, ETHER_ADDR_LEN); /* * Android sets the locally administered bit to indicate that this is a * portable hotspot. This will not work in simultaneous AP/STA mode, * nor with P2P. Need to set the Donlge's MAC address, and then use that. */ if (!memcmp(temp_addr, dhd->iflist[0]->mac_addr, ETHER_ADDR_LEN)) { DHD_ERROR(("%s interface [%s]: set locally administered bit in MAC\n", __func__, net->name)); temp_addr[0] |= 0x02; } } net->hard_header_len = ETH_HLEN + dhd->pub.hdrlen; #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24) net->ethtool_ops = &dhd_ethtool_ops; #endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24) */ #if defined(CONFIG_BCMDHD_WEXT) #if WIRELESS_EXT < 19 net->get_wireless_stats = dhd_get_wireless_stats; #endif /* WIRELESS_EXT < 19 */ #if WIRELESS_EXT > 12 net->wireless_handlers = (struct iw_handler_def *)&wl_iw_handler_def; #endif /* WIRELESS_EXT > 12 */ #endif /* defined(CONFIG_BCMDHD_WEXT) */ dhd->pub.rxsz = DBUS_RX_BUFFER_SIZE_DHD(net); memcpy(net->dev_addr, temp_addr, ETHER_ADDR_LEN); if ((err = register_netdev(net)) != 0) { DHD_ERROR(("couldn't register the net device, err %d\n", err)); goto fail; } printf("Broadcom Dongle Host Driver: register interface [%s]" " MAC: %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n", net->name, net->dev_addr[0], net->dev_addr[1], net->dev_addr[2], net->dev_addr[3], net->dev_addr[4], net->dev_addr[5]); #if defined(SOFTAP) && defined(CONFIG_BCMDHD_WEXT) && !defined(WL_CFG80211) wl_iw_iscan_set_scan_broadcast_prep(net, 1); #endif #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) if (ifidx == 0) { up(&dhd_registration_sem); } #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */ return 0; fail: #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31) net->open = NULL; #else net->netdev_ops = NULL; #endif return err; } void dhd_bus_detach(dhd_pub_t *dhdp) { dhd_info_t *dhd; DHD_TRACE(("%s: Enter\n", __FUNCTION__)); if (dhdp) { dhd = (dhd_info_t *)dhdp->info; if (dhd) { /* * In case of Android cfg80211 driver, the bus is down in dhd_stop, * calling stop again will cuase SD read/write errors. */ if (dhd->pub.busstate != DHD_BUS_DOWN) { /* Stop the protocol module */ dhd_prot_stop(&dhd->pub); /* Stop the bus module */ dhd_bus_stop(dhd->pub.bus, TRUE); } #if defined(OOB_INTR_ONLY) bcmsdh_unregister_oob_intr(); #endif /* defined(OOB_INTR_ONLY) */ } } } void dhd_detach(dhd_pub_t *dhdp) { dhd_info_t *dhd; unsigned long flags; int timer_valid = FALSE; if (!dhdp) return; dhd = (dhd_info_t *)dhdp->info; if (!dhd) return; DHD_TRACE(("%s: Enter state 0x%x\n", __FUNCTION__, dhd->dhd_state)); if (!(dhd->dhd_state & DHD_ATTACH_STATE_DONE)) { /* Give sufficient time for threads to start running in case * dhd_attach() has failed */ osl_delay(1000*100); } #ifdef ARP_OFFLOAD_SUPPORT unregister_inetaddr_notifier(&dhd_notifier); #endif /* ARP_OFFLOAD_SUPPORT */ #if defined(CONFIG_HAS_EARLYSUSPEND) && defined(DHD_USE_EARLYSUSPEND) if (dhd->dhd_state & DHD_ATTACH_STATE_EARLYSUSPEND_DONE) { if (dhd->early_suspend.suspend) unregister_early_suspend(&dhd->early_suspend); } #endif /* defined(CONFIG_HAS_EARLYSUSPEND) */ #if defined(CONFIG_BCMDHD_WEXT) if (dhd->dhd_state & DHD_ATTACH_STATE_WL_ATTACH) { /* Detatch and unlink in the iw */ wl_iw_detach(); } #endif /* defined(CONFIG_BCMDHD_WEXT) */ if (dhd->thr_sysioc_ctl.thr_pid >= 0) { PROC_STOP(&dhd->thr_sysioc_ctl); } /* delete all interfaces, start with virtual */ if (dhd->dhd_state & DHD_ATTACH_STATE_ADD_IF) { int i = 1; dhd_if_t *ifp; /* Cleanup virtual interfaces */ for (i = 1; i < DHD_MAX_IFS; i++) { dhd_net_if_lock_local(dhd); if (dhd->iflist[i]) { dhd->iflist[i]->state = DHD_IF_DEL; dhd->iflist[i]->idx = i; dhd_op_if(dhd->iflist[i]); } dhd_net_if_unlock_local(dhd); } /* delete primary interface 0 */ ifp = dhd->iflist[0]; ASSERT(ifp); #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31)) if (ifp->net->open) #else if (ifp->net->netdev_ops == &dhd_ops_pri) #endif { if (ifp->net) { unregister_netdev(ifp->net); free_netdev(ifp->net); ifp->net = NULL; } MFREE(dhd->pub.osh, ifp, sizeof(*ifp)); dhd->iflist[0] = NULL; } } /* Clear the watchdog timer */ flags = dhd_os_spin_lock(&dhd->pub); timer_valid = dhd->wd_timer_valid; dhd->wd_timer_valid = FALSE; dhd_os_spin_unlock(&dhd->pub, flags); if (timer_valid) del_timer_sync(&dhd->timer); if (dhd->dhd_state & DHD_ATTACH_STATE_THREADS_CREATED) { #ifdef DHDTHREAD if (dhd->thr_wdt_ctl.thr_pid >= 0) { PROC_STOP(&dhd->thr_wdt_ctl); } if (dhd->thr_dpc_ctl.thr_pid >= 0) { PROC_STOP(&dhd->thr_dpc_ctl); } else #endif /* DHDTHREAD */ tasklet_kill(&dhd->tasklet); } if (dhd->dhd_state & DHD_ATTACH_STATE_PROT_ATTACH) { dhd_bus_detach(dhdp); if (dhdp->prot) dhd_prot_detach(dhdp); } #ifdef WL_CFG80211 if (dhd->dhd_state & DHD_ATTACH_STATE_CFG80211) { wl_cfg80211_detach(NULL); dhd_monitor_uninit(); } #endif #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) unregister_pm_notifier(&dhd_sleep_pm_notifier); #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) */ if (dhd->dhd_state & DHD_ATTACH_STATE_WAKELOCKS_INIT) { #ifdef CONFIG_HAS_WAKELOCK wake_lock_destroy(&dhd->wl_wifi); wake_lock_destroy(&dhd->wl_rxwake); wake_lock_destroy(&dhd->wl_ctrlwake); #endif } } void dhd_free(dhd_pub_t *dhdp) { dhd_info_t *dhd; DHD_TRACE(("%s: Enter\n", __FUNCTION__)); if (dhdp) { dhd = (dhd_info_t *)dhdp->info; if (dhd) MFREE(dhd->pub.osh, dhd, sizeof(*dhd)); } } static void __exit dhd_module_cleanup(void) { DHD_TRACE(("%s: Enter\n", __FUNCTION__)); dhd_bus_unregister(); #if defined(CONFIG_WIFI_CONTROL_FUNC) wl_android_wifictrl_func_del(); #endif /* CONFIG_WIFI_CONTROL_FUNC */ wl_android_exit(); /* Call customer gpio to turn off power with WL_REG_ON signal */ dhd_customer_gpio_wlan_ctrl(WLAN_POWER_OFF); } static int __init dhd_module_init(void) { int error = 0; DHD_TRACE(("%s: Enter\n", __FUNCTION__)); wl_android_init(); #ifdef DHDTHREAD /* Sanity check on the module parameters */ do { /* Both watchdog and DPC as tasklets are ok */ if ((dhd_watchdog_prio < 0) && (dhd_dpc_prio < 0)) break; /* If both watchdog and DPC are threads, TX must be deferred */ if ((dhd_watchdog_prio >= 0) && (dhd_dpc_prio >= 0) && dhd_deferred_tx) break; DHD_ERROR(("Invalid module parameters.\n")); return -EINVAL; } while (0); #endif /* DHDTHREAD */ /* Call customer gpio to turn on power with WL_REG_ON signal */ dhd_customer_gpio_wlan_ctrl(WLAN_POWER_ON); #if defined(CONFIG_WIFI_CONTROL_FUNC) if (wl_android_wifictrl_func_add() < 0) goto fail_1; #endif #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) sema_init(&dhd_registration_sem, 0); #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */ error = dhd_bus_register(); if (!error) printf("\n%s\n", dhd_version); else { DHD_ERROR(("%s: sdio_register_driver failed\n", __FUNCTION__)); goto fail_1; } #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) /* * Wait till MMC sdio_register_driver callback called and made driver attach. * It's needed to make sync up exit from dhd insmod and * Kernel MMC sdio device callback registration */ if (down_timeout(&dhd_registration_sem, msecs_to_jiffies(DHD_REGISTRATION_TIMEOUT)) != 0) { error = -ENODEV; DHD_ERROR(("%s: sdio_register_driver timeout\n", __FUNCTION__)); goto fail_2; } #endif #if defined(WL_CFG80211) wl_android_post_init(); #endif /* defined(WL_CFG80211) */ return error; #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) fail_2: dhd_bus_unregister(); #endif fail_1: #if defined(CONFIG_WIFI_CONTROL_FUNC) wl_android_wifictrl_func_del(); #endif /* Call customer gpio to turn off power with WL_REG_ON signal */ dhd_customer_gpio_wlan_ctrl(WLAN_POWER_OFF); return error; } #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0) late_initcall(dhd_module_init); #else module_init(dhd_module_init); #endif module_exit(dhd_module_cleanup); /* * OS specific functions required to implement DHD driver in OS independent way */ int dhd_os_proto_block(dhd_pub_t *pub) { dhd_info_t * dhd = (dhd_info_t *)(pub->info); if (dhd) { down(&dhd->proto_sem); return 1; } return 0; } int dhd_os_proto_unblock(dhd_pub_t *pub) { dhd_info_t * dhd = (dhd_info_t *)(pub->info); if (dhd) { up(&dhd->proto_sem); return 1; } return 0; } unsigned int dhd_os_get_ioctl_resp_timeout(void) { return ((unsigned int)dhd_ioctl_timeout_msec); } void dhd_os_set_ioctl_resp_timeout(unsigned int timeout_msec) { dhd_ioctl_timeout_msec = (int)timeout_msec; } int dhd_os_ioctl_resp_wait(dhd_pub_t *pub, uint *condition, bool *pending) { dhd_info_t * dhd = (dhd_info_t *)(pub->info); DECLARE_WAITQUEUE(wait, current); int timeout = dhd_ioctl_timeout_msec; /* Convert timeout in millsecond to jiffies */ #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) timeout = msecs_to_jiffies(timeout); #else timeout = timeout * HZ / 1000; #endif /* Wait until control frame is available */ add_wait_queue(&dhd->ioctl_resp_wait, &wait); set_current_state(TASK_INTERRUPTIBLE); /* Memory barrier to support multi-processing * As the variable "condition", which points to dhd->rxlen (dhd_bus_rxctl[dhd_sdio.c]) * Can be changed by another processor. */ smp_mb(); while (!(*condition) && (!signal_pending(current) && timeout)) { timeout = schedule_timeout(timeout); smp_mb(); } if (signal_pending(current)) *pending = TRUE; set_current_state(TASK_RUNNING); remove_wait_queue(&dhd->ioctl_resp_wait, &wait); return timeout; } int dhd_os_ioctl_resp_wake(dhd_pub_t *pub) { dhd_info_t *dhd = (dhd_info_t *)(pub->info); if (waitqueue_active(&dhd->ioctl_resp_wait)) { wake_up_interruptible(&dhd->ioctl_resp_wait); } return 0; } void dhd_os_wd_timer(void *bus, uint wdtick) { dhd_pub_t *pub = bus; dhd_info_t *dhd = (dhd_info_t *)pub->info; unsigned long flags; DHD_TRACE(("%s: Enter\n", __FUNCTION__)); flags = dhd_os_spin_lock(pub); /* don't start the wd until fw is loaded */ if (pub->busstate == DHD_BUS_DOWN) { dhd_os_spin_unlock(pub, flags); return; } /* Totally stop the timer */ if (!wdtick && dhd->wd_timer_valid == TRUE) { dhd->wd_timer_valid = FALSE; dhd_os_spin_unlock(pub, flags); #ifdef DHDTHREAD del_timer_sync(&dhd->timer); #else del_timer(&dhd->timer); #endif /* DHDTHREAD */ return; } if (wdtick) { dhd_watchdog_ms = (uint)wdtick; /* Re arm the timer, at last watchdog period */ mod_timer(&dhd->timer, jiffies + dhd_watchdog_ms * HZ / 1000); dhd->wd_timer_valid = TRUE; } dhd_os_spin_unlock(pub, flags); } void * dhd_os_open_image(char *filename) { struct file *fp; fp = filp_open(filename, O_RDONLY, 0); /* * 2.6.11 (FC4) supports filp_open() but later revs don't? * Alternative: * fp = open_namei(AT_FDCWD, filename, O_RD, 0); * ??? */ if (IS_ERR(fp)) fp = NULL; return fp; } int dhd_os_get_image_block(char *buf, int len, void *image) { struct file *fp = (struct file *)image; int rdlen; if (!image) return 0; rdlen = kernel_read(fp, fp->f_pos, buf, len); if (rdlen > 0) fp->f_pos += rdlen; return rdlen; } void dhd_os_close_image(void *image) { if (image) filp_close((struct file *)image, NULL); } void dhd_os_sdlock(dhd_pub_t *pub) { dhd_info_t *dhd; dhd = (dhd_info_t *)(pub->info); #ifdef DHDTHREAD if (dhd->threads_only) down(&dhd->sdsem); else #endif /* DHDTHREAD */ spin_lock_bh(&dhd->sdlock); } void dhd_os_sdunlock(dhd_pub_t *pub) { dhd_info_t *dhd; dhd = (dhd_info_t *)(pub->info); #ifdef DHDTHREAD if (dhd->threads_only) up(&dhd->sdsem); else #endif /* DHDTHREAD */ spin_unlock_bh(&dhd->sdlock); } void dhd_os_sdlock_txq(dhd_pub_t *pub) { dhd_info_t *dhd; dhd = (dhd_info_t *)(pub->info); spin_lock_bh(&dhd->txqlock); } void dhd_os_sdunlock_txq(dhd_pub_t *pub) { dhd_info_t *dhd; dhd = (dhd_info_t *)(pub->info); spin_unlock_bh(&dhd->txqlock); } void dhd_os_sdlock_rxq(dhd_pub_t *pub) { } void dhd_os_sdunlock_rxq(dhd_pub_t *pub) { } void dhd_os_sdtxlock(dhd_pub_t *pub) { dhd_os_sdlock(pub); } void dhd_os_sdtxunlock(dhd_pub_t *pub) { dhd_os_sdunlock(pub); } #if defined(CONFIG_DHD_USE_STATIC_BUF) uint8* dhd_os_prealloc(void *osh, int section, uint size) { return (uint8*)wl_android_prealloc(section, size); } void dhd_os_prefree(void *osh, void *addr, uint size) { } #endif /* defined(CONFIG_DHD_USE_STATIC_BUF) */ #if defined(CONFIG_BCMDHD_WEXT) struct iw_statistics * dhd_get_wireless_stats(struct net_device *dev) { int res = 0; dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); if (!dhd->pub.up) { return NULL; } res = wl_iw_get_wireless_stats(dev, &dhd->iw.wstats); if (res == 0) return &dhd->iw.wstats; else return NULL; } #endif /* defined(CONFIG_BCMDHD_WEXT) */ static int dhd_wl_host_event(dhd_info_t *dhd, int *ifidx, void *pktdata, wl_event_msg_t *event, void **data) { int bcmerror = 0; ASSERT(dhd != NULL); bcmerror = wl_host_event(&dhd->pub, ifidx, pktdata, event, data); if (bcmerror != BCME_OK) return (bcmerror); #if defined(CONFIG_BCMDHD_WEXT) if (event->bsscfgidx == 0) { /* * Wireless ext is on primary interface only */ ASSERT(dhd->iflist[*ifidx] != NULL); ASSERT(dhd->iflist[*ifidx]->net != NULL); if (dhd->iflist[*ifidx]->net) { wl_iw_event(dhd->iflist[*ifidx]->net, event, *data); } } #endif /* defined(CONFIG_BCMDHD_WEXT) */ #ifdef WL_CFG80211 if ((ntoh32(event->event_type) == WLC_E_IF) && (((dhd_if_event_t *)*data)->action == WLC_E_IF_ADD)) /* If ADD_IF has been called directly by wl utility then we * should not report this. In case if ADD_IF was called from * CFG stack, then too this event need not be reported back */ return (BCME_OK); if ((wl_cfg80211_is_progress_ifchange() || wl_cfg80211_is_progress_ifadd()) && (*ifidx != 0)) { /* * If IF_ADD/CHANGE operation is going on, * discard any event received on the virtual I/F */ return (BCME_OK); } ASSERT(dhd->iflist[*ifidx] != NULL); ASSERT(dhd->iflist[*ifidx]->net != NULL); if (dhd->iflist[*ifidx]->net) { wl_cfg80211_event(dhd->iflist[*ifidx]->net, event, *data); } #endif /* defined(WL_CFG80211) */ return (bcmerror); } /* send up locally generated event */ void dhd_sendup_event(dhd_pub_t *dhdp, wl_event_msg_t *event, void *data) { switch (ntoh32(event->event_type)) { /* Send up locally generated AMP HCI Events */ case WLC_E_BTA_HCI_EVENT: { struct sk_buff *p, *skb; bcm_event_t *msg; wl_event_msg_t *p_bcm_event; char *ptr; uint32 len; uint32 pktlen; dhd_if_t *ifp; dhd_info_t *dhd; uchar *eth; int ifidx; len = ntoh32(event->datalen); pktlen = sizeof(bcm_event_t) + len + 2; dhd = dhdp->info; ifidx = dhd_ifname2idx(dhd, event->ifname); if ((p = PKTGET(dhdp->osh, pktlen, FALSE))) { ASSERT(ISALIGNED((uintptr)PKTDATA(dhdp->osh, p), sizeof(uint32))); msg = (bcm_event_t *) PKTDATA(dhdp->osh, p); bcopy(&dhdp->mac, &msg->eth.ether_dhost, ETHER_ADDR_LEN); bcopy(&dhdp->mac, &msg->eth.ether_shost, ETHER_ADDR_LEN); ETHER_TOGGLE_LOCALADDR(&msg->eth.ether_shost); msg->eth.ether_type = hton16(ETHER_TYPE_BRCM); /* BCM Vendor specific header... */ msg->bcm_hdr.subtype = hton16(BCMILCP_SUBTYPE_VENDOR_LONG); msg->bcm_hdr.version = BCMILCP_BCM_SUBTYPEHDR_VERSION; bcopy(BRCM_OUI, &msg->bcm_hdr.oui[0], DOT11_OUI_LEN); /* vendor spec header length + pvt data length (private indication * hdr + actual message itself) */ msg->bcm_hdr.length = hton16(BCMILCP_BCM_SUBTYPEHDR_MINLENGTH + BCM_MSG_LEN + sizeof(wl_event_msg_t) + (uint16)len); msg->bcm_hdr.usr_subtype = hton16(BCMILCP_BCM_SUBTYPE_EVENT); PKTSETLEN(dhdp->osh, p, (sizeof(bcm_event_t) + len + 2)); /* copy wl_event_msg_t into sk_buf */ /* pointer to wl_event_msg_t in sk_buf */ p_bcm_event = &msg->event; bcopy(event, p_bcm_event, sizeof(wl_event_msg_t)); /* copy hci event into sk_buf */ bcopy(data, (p_bcm_event + 1), len); msg->bcm_hdr.length = hton16(sizeof(wl_event_msg_t) + ntoh16(msg->bcm_hdr.length)); PKTSETLEN(dhdp->osh, p, (sizeof(bcm_event_t) + len + 2)); ptr = (char *)(msg + 1); /* Last 2 bytes of the message are 0x00 0x00 to signal that there * are no ethertypes which are following this */ ptr[len+0] = 0x00; ptr[len+1] = 0x00; skb = PKTTONATIVE(dhdp->osh, p); eth = skb->data; len = skb->len; ifp = dhd->iflist[ifidx]; if (ifp == NULL) ifp = dhd->iflist[0]; ASSERT(ifp); skb->dev = ifp->net; skb->protocol = eth_type_trans(skb, skb->dev); skb->data = eth; skb->len = len; /* Strip header, count, deliver upward */ skb_pull(skb, ETH_HLEN); /* Send the packet */ if (in_interrupt()) { netif_rx(skb); } else { netif_rx_ni(skb); } } else { /* Could not allocate a sk_buf */ DHD_ERROR(("%s: unable to alloc sk_buf", __FUNCTION__)); } break; } /* case WLC_E_BTA_HCI_EVENT */ default: break; } } void dhd_wait_for_event(dhd_pub_t *dhd, bool *lockvar) { #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)) struct dhd_info *dhdinfo = dhd->info; dhd_os_sdunlock(dhd); wait_event_interruptible_timeout(dhdinfo->ctrl_wait, (*lockvar == FALSE), HZ * 2); dhd_os_sdlock(dhd); #endif return; } void dhd_wait_event_wakeup(dhd_pub_t *dhd) { #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)) struct dhd_info *dhdinfo = dhd->info; if (waitqueue_active(&dhdinfo->ctrl_wait)) wake_up_interruptible(&dhdinfo->ctrl_wait); #endif return; } int dhd_dev_reset(struct net_device *dev, uint8 flag) { int ret; dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); ret = dhd_bus_devreset(&dhd->pub, flag); if (ret) { DHD_ERROR(("%s: dhd_bus_devreset: %d\n", __FUNCTION__, ret)); return ret; } return ret; } int net_os_set_suspend_disable(struct net_device *dev, int val) { dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); int ret = 0; if (dhd) { ret = dhd->pub.suspend_disable_flag; dhd->pub.suspend_disable_flag = val; } return ret; } int net_os_set_suspend(struct net_device *dev, int val, int force) { int ret = 0; dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); if (dhd) { #if defined(CONFIG_HAS_EARLYSUSPEND) && defined(DHD_USE_EARLYSUSPEND) ret = dhd_set_suspend(val, &dhd->pub); #else ret = dhd_suspend_resume_helper(dhd, val, force); #endif } return ret; } int net_os_set_dtim_skip(struct net_device *dev, int val) { dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); if (dhd) dhd->pub.dtim_skip = val; return 0; } int net_os_rxfilter_add_remove(struct net_device *dev, int add_remove, int num) { dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); char *filterp = NULL; int ret = 0; if (!dhd || (num == DHD_UNICAST_FILTER_NUM) || (num == DHD_MDNS_FILTER_NUM)) return ret; if (num >= dhd->pub.pktfilter_count) return -EINVAL; if (add_remove) { switch (num) { case DHD_BROADCAST_FILTER_NUM: filterp = "101 0 0 0 0xFFFFFFFFFFFF 0xFFFFFFFFFFFF"; break; case DHD_MULTICAST4_FILTER_NUM: filterp = "102 0 0 0 0xFFFFFF 0x01005E"; break; case DHD_MULTICAST6_FILTER_NUM: filterp = "103 0 0 0 0xFFFF 0x3333"; break; default: return -EINVAL; } } dhd->pub.pktfilter[num] = filterp; return ret; } int net_os_set_packet_filter(struct net_device *dev, int val) { dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); int ret = 0; /* Packet filtering is set only if we still in early-suspend and * we need either to turn it ON or turn it OFF * We can always turn it OFF in case of early-suspend, but we turn it * back ON only if suspend_disable_flag was not set */ if (dhd && dhd->pub.up) { if (dhd->pub.in_suspend) { if (!val || (val && !dhd->pub.suspend_disable_flag)) dhd_set_packet_filter(val, &dhd->pub); } } return ret; } void dhd_dev_init_ioctl(struct net_device *dev) { dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); dhd_preinit_ioctls(&dhd->pub); } #ifdef PNO_SUPPORT /* Linux wrapper to call common dhd_pno_clean */ int dhd_dev_pno_reset(struct net_device *dev) { dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); return (dhd_pno_clean(&dhd->pub)); } /* Linux wrapper to call common dhd_pno_enable */ int dhd_dev_pno_enable(struct net_device *dev, int pfn_enabled) { dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); return (dhd_pno_enable(&dhd->pub, pfn_enabled)); } /* Linux wrapper to call common dhd_pno_set */ int dhd_dev_pno_set(struct net_device *dev, wlc_ssid_t* ssids_local, int nssid, ushort scan_fr, int pno_repeat, int pno_freq_expo_max) { dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); return (dhd_pno_set(&dhd->pub, ssids_local, nssid, scan_fr, pno_repeat, pno_freq_expo_max)); } /* Linux wrapper to get pno status */ int dhd_dev_get_pno_status(struct net_device *dev) { dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); return (dhd_pno_get_status(&dhd->pub)); } #endif /* PNO_SUPPORT */ #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) int net_os_send_hang_message(struct net_device *dev) { dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); int ret = 0; int need_unlock = 0; if (dhd) { if (!dhd->pub.hang_was_sent) { dhd->pub.hang_was_sent = 1; if (!rtnl_is_locked()) { need_unlock = 1; rtnl_lock(); } dev_close(dev); if (need_unlock) rtnl_unlock(); #if defined(CONFIG_BCMDHD_WEXT) ret = wl_iw_send_priv_event(dev, "HANG"); #endif #if defined(WL_CFG80211) ret = wl_cfg80211_hang(dev, WLAN_REASON_UNSPECIFIED); #endif } } return ret; } #endif void dhd_bus_country_set(struct net_device *dev, wl_country_t *cspec) { dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); if (dhd && dhd->pub.up) memcpy(&dhd->pub.dhd_cspec, cspec, sizeof(wl_country_t)); } void dhd_net_if_lock(struct net_device *dev) { dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); dhd_net_if_lock_local(dhd); } void dhd_net_if_unlock(struct net_device *dev) { dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); dhd_net_if_unlock_local(dhd); } static void dhd_net_if_lock_local(dhd_info_t *dhd) { #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) if (dhd) mutex_lock(&dhd->dhd_net_if_mutex); #endif } static void dhd_net_if_unlock_local(dhd_info_t *dhd) { #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) if (dhd) mutex_unlock(&dhd->dhd_net_if_mutex); #endif } static void dhd_suspend_lock(dhd_pub_t *pub) { #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) dhd_info_t *dhd = (dhd_info_t *)(pub->info); if (dhd) mutex_lock(&dhd->dhd_suspend_mutex); #endif } static void dhd_suspend_unlock(dhd_pub_t *pub) { #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) dhd_info_t *dhd = (dhd_info_t *)(pub->info); if (dhd) mutex_unlock(&dhd->dhd_suspend_mutex); #endif } unsigned long dhd_os_spin_lock(dhd_pub_t *pub) { dhd_info_t *dhd = (dhd_info_t *)(pub->info); unsigned long flags = 0; if (dhd) spin_lock_irqsave(&dhd->dhd_lock, flags); return flags; } void dhd_os_spin_unlock(dhd_pub_t *pub, unsigned long flags) { dhd_info_t *dhd = (dhd_info_t *)(pub->info); if (dhd) spin_unlock_irqrestore(&dhd->dhd_lock, flags); } static int dhd_get_pend_8021x_cnt(dhd_info_t *dhd) { return (atomic_read(&dhd->pend_8021x_cnt)); } #define MAX_WAIT_FOR_8021X_TX 10 int dhd_wait_pend8021x(struct net_device *dev) { dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); int timeout = 10 * HZ / 1000; int ntimes = MAX_WAIT_FOR_8021X_TX; int pend = dhd_get_pend_8021x_cnt(dhd); while (ntimes && pend) { if (pend) { set_current_state(TASK_INTERRUPTIBLE); schedule_timeout(timeout); set_current_state(TASK_RUNNING); ntimes--; } pend = dhd_get_pend_8021x_cnt(dhd); } return pend; } #ifdef DHD_DEBUG int write_to_file(dhd_pub_t *dhd, uint8 *buf, int size) { int ret = 0; struct file *fp; mm_segment_t old_fs; loff_t pos = 0; /* change to KERNEL_DS address limit */ old_fs = get_fs(); set_fs(KERNEL_DS); /* open file to write */ fp = filp_open("/tmp/mem_dump", O_WRONLY|O_CREAT, 0640); if (!fp) { printf("%s: open file error\n", __FUNCTION__); ret = -1; goto exit; } /* Write buf to file */ fp->f_op->write(fp, buf, size, &pos); exit: /* free buf before return */ MFREE(dhd->osh, buf, size); /* close file before return */ if (fp) filp_close(fp, current->files); /* restore previous address limit */ set_fs(old_fs); return ret; } #endif /* DHD_DEBUG */ int dhd_os_wake_lock_timeout(dhd_pub_t *pub) { dhd_info_t *dhd = (dhd_info_t *)(pub->info); unsigned long flags; int ret = 0; if (dhd) { spin_lock_irqsave(&dhd->wakelock_spinlock, flags); ret = dhd->wakelock_rx_timeout_enable > dhd->wakelock_ctrl_timeout_enable ? dhd->wakelock_rx_timeout_enable : dhd->wakelock_ctrl_timeout_enable; #ifdef CONFIG_HAS_WAKELOCK if (dhd->wakelock_rx_timeout_enable) wake_lock_timeout(&dhd->wl_rxwake, msecs_to_jiffies(dhd->wakelock_rx_timeout_enable)); if (dhd->wakelock_ctrl_timeout_enable) wake_lock_timeout(&dhd->wl_ctrlwake, msecs_to_jiffies(dhd->wakelock_ctrl_timeout_enable)); #endif dhd->wakelock_rx_timeout_enable = 0; dhd->wakelock_ctrl_timeout_enable = 0; spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags); } return ret; } int net_os_wake_lock_timeout(struct net_device *dev) { dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); int ret = 0; if (dhd) ret = dhd_os_wake_lock_timeout(&dhd->pub); return ret; } int dhd_os_wake_lock_rx_timeout_enable(dhd_pub_t *pub, int val) { dhd_info_t *dhd = (dhd_info_t *)(pub->info); unsigned long flags; if (dhd) { spin_lock_irqsave(&dhd->wakelock_spinlock, flags); if (val > dhd->wakelock_rx_timeout_enable) dhd->wakelock_rx_timeout_enable = val; spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags); } return 0; } int dhd_os_wake_lock_ctrl_timeout_enable(dhd_pub_t *pub, int val) { dhd_info_t *dhd = (dhd_info_t *)(pub->info); unsigned long flags; if (dhd) { spin_lock_irqsave(&dhd->wakelock_spinlock, flags); if (val > dhd->wakelock_ctrl_timeout_enable) dhd->wakelock_ctrl_timeout_enable = val; spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags); } return 0; } int net_os_wake_lock_rx_timeout_enable(struct net_device *dev, int val) { dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); int ret = 0; if (dhd) ret = dhd_os_wake_lock_rx_timeout_enable(&dhd->pub, val); return ret; } int net_os_wake_lock_ctrl_timeout_enable(struct net_device *dev, int val) { dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); int ret = 0; if (dhd) ret = dhd_os_wake_lock_ctrl_timeout_enable(&dhd->pub, val); return ret; } int dhd_os_wake_lock(dhd_pub_t *pub) { dhd_info_t *dhd = (dhd_info_t *)(pub->info); unsigned long flags; int ret = 0; if (dhd) { spin_lock_irqsave(&dhd->wakelock_spinlock, flags); #ifdef CONFIG_HAS_WAKELOCK if (!dhd->wakelock_counter) wake_lock(&dhd->wl_wifi); #endif dhd->wakelock_counter++; ret = dhd->wakelock_counter; spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags); } return ret; } int net_os_wake_lock(struct net_device *dev) { dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); int ret = 0; if (dhd) ret = dhd_os_wake_lock(&dhd->pub); return ret; } int dhd_os_wake_unlock(dhd_pub_t *pub) { dhd_info_t *dhd = (dhd_info_t *)(pub->info); unsigned long flags; int ret = 0; dhd_os_wake_lock_timeout(pub); if (dhd) { spin_lock_irqsave(&dhd->wakelock_spinlock, flags); if (dhd->wakelock_counter) { dhd->wakelock_counter--; #ifdef CONFIG_HAS_WAKELOCK if (!dhd->wakelock_counter) wake_unlock(&dhd->wl_wifi); #endif ret = dhd->wakelock_counter; } spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags); } return ret; } int dhd_os_check_wakelock(void *dhdp) { #ifdef CONFIG_HAS_WAKELOCK dhd_pub_t *pub = (dhd_pub_t *)dhdp; dhd_info_t *dhd; if (!pub) return 0; dhd = (dhd_info_t *)(pub->info); if (dhd && wake_lock_active(&dhd->wl_wifi)) return 1; #endif return 0; } int net_os_wake_unlock(struct net_device *dev) { dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); int ret = 0; if (dhd) ret = dhd_os_wake_unlock(&dhd->pub); return ret; } int dhd_os_check_if_up(void *dhdp) { dhd_pub_t *pub = (dhd_pub_t *)dhdp; if (!pub) return 0; return pub->up; } int dhd_ioctl_entry_local(struct net_device *net, wl_ioctl_t *ioc, int cmd) { int ifidx; int ret = 0; dhd_info_t *dhd = NULL; if (!net || !netdev_priv(net)) { DHD_ERROR(("%s invalid parameter\n", __FUNCTION__)); return -EINVAL; } dhd = *(dhd_info_t **)netdev_priv(net); ifidx = dhd_net2idx(dhd, net); if (ifidx == DHD_BAD_IF) { DHD_ERROR(("%s bad ifidx\n", __FUNCTION__)); return -ENODEV; } DHD_OS_WAKE_LOCK(&dhd->pub); ret = dhd_wl_ioctl(&dhd->pub, ifidx, ioc, ioc->buf, ioc->len); dhd_check_hang(net, &dhd->pub, ret); DHD_OS_WAKE_UNLOCK(&dhd->pub); return ret; } bool dhd_os_check_hang(dhd_pub_t *dhdp, int ifidx, int ret) { struct net_device *net; net = dhd_idx2net(dhdp, ifidx); return dhd_check_hang(net, dhdp, ret); } #ifdef PROP_TXSTATUS extern int dhd_wlfc_interface_entry_update(void* state, ewlfc_mac_entry_action_t action, uint8 ifid, uint8 iftype, uint8* ea); extern int dhd_wlfc_FIFOcreditmap_update(void* state, uint8* credits); int dhd_wlfc_interface_event(struct dhd_info *dhd, ewlfc_mac_entry_action_t action, uint8 ifid, uint8 iftype, uint8* ea) { if (dhd->pub.wlfc_state == NULL) return BCME_OK; return dhd_wlfc_interface_entry_update(dhd->pub.wlfc_state, action, ifid, iftype, ea); } int dhd_wlfc_FIFOcreditmap_event(struct dhd_info *dhd, uint8* event_data) { if (dhd->pub.wlfc_state == NULL) return BCME_OK; return dhd_wlfc_FIFOcreditmap_update(dhd->pub.wlfc_state, event_data); } int dhd_wlfc_event(struct dhd_info *dhd) { return dhd_wlfc_enable(&dhd->pub); } #endif /* PROP_TXSTATUS */ #ifdef BCMDBGFS #include extern uint32 dhd_readregl(void *bp, uint32 addr); extern uint32 dhd_writeregl(void *bp, uint32 addr, uint32 data); typedef struct dhd_dbgfs { struct dentry *debugfs_dir; struct dentry *debugfs_mem; dhd_pub_t *dhdp; uint32 size; } dhd_dbgfs_t; dhd_dbgfs_t g_dbgfs; static int dhd_dbg_state_open(struct inode *inode, struct file *file) { file->private_data = inode->i_private; return 0; } static ssize_t dhd_dbg_state_read(struct file *file, char __user *ubuf, size_t count, loff_t *ppos) { ssize_t rval; uint32 tmp; loff_t pos = *ppos; size_t ret; if (pos < 0) return -EINVAL; if (pos >= g_dbgfs.size || !count) return 0; if (count > g_dbgfs.size - pos) count = g_dbgfs.size - pos; /* Basically enforce aligned 4 byte reads. It's up to the user to work out the details */ tmp = dhd_readregl(g_dbgfs.dhdp->bus, file->f_pos & (~3)); ret = copy_to_user(ubuf, &tmp, 4); if (ret == count) return -EFAULT; count -= ret; *ppos = pos + count; rval = count; return rval; } static ssize_t dhd_debugfs_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { loff_t pos = *ppos; size_t ret; uint32 buf; if (pos < 0) return -EINVAL; if (pos >= g_dbgfs.size || !count) return 0; if (count > g_dbgfs.size - pos) count = g_dbgfs.size - pos; ret = copy_from_user(&buf, ubuf, sizeof(uint32)); if (ret == count) return -EFAULT; /* Basically enforce aligned 4 byte writes. It's up to the user to work out the details */ dhd_writeregl(g_dbgfs.dhdp->bus, file->f_pos & (~3), buf); return count; } loff_t dhd_debugfs_lseek(struct file *file, loff_t off, int whence) { loff_t pos = -1; switch (whence) { case 0: pos = off; break; case 1: pos = file->f_pos + off; break; case 2: pos = g_dbgfs.size - off; } return (pos < 0 || pos > g_dbgfs.size) ? -EINVAL : (file->f_pos = pos); } static const struct file_operations dhd_dbg_state_ops = { .read = dhd_dbg_state_read, .write = dhd_debugfs_write, .open = dhd_dbg_state_open, .llseek = dhd_debugfs_lseek }; static void dhd_dbg_create(void) { if (g_dbgfs.debugfs_dir) { g_dbgfs.debugfs_mem = debugfs_create_file("mem", 0644, g_dbgfs.debugfs_dir, NULL, &dhd_dbg_state_ops); } } void dhd_dbg_init(dhd_pub_t *dhdp) { int err; g_dbgfs.dhdp = dhdp; g_dbgfs.size = 0x20000000; /* Allow access to various cores regs */ g_dbgfs.debugfs_dir = debugfs_create_dir("dhd", 0); if (IS_ERR(g_dbgfs.debugfs_dir)) { err = PTR_ERR(g_dbgfs.debugfs_dir); g_dbgfs.debugfs_dir = NULL; return; } dhd_dbg_create(); return; } void dhd_dbg_remove(void) { debugfs_remove(g_dbgfs.debugfs_mem); debugfs_remove(g_dbgfs.debugfs_dir); bzero((unsigned char *) &g_dbgfs, sizeof(g_dbgfs)); } #endif /* ifdef BCMDBGFS */ #ifdef WLMEDIA_HTSF static void dhd_htsf_addtxts(dhd_pub_t *dhdp, void *pktbuf) { dhd_info_t *dhd = (dhd_info_t *)(dhdp->info); struct sk_buff *skb; uint32 htsf = 0; uint16 dport = 0, oldmagic = 0xACAC; char *p1; htsfts_t ts; /* timestamp packet */ p1 = (char*) PKTDATA(dhdp->osh, pktbuf); if (PKTLEN(dhdp->osh, pktbuf) > HTSF_MINLEN) { /* memcpy(&proto, p1+26, 4); */ memcpy(&dport, p1+40, 2); /* proto = ((ntoh32(proto))>> 16) & 0xFF; */ dport = ntoh16(dport); } /* timestamp only if icmp or udb iperf with port 5555 */ /* if (proto == 17 && dport == tsport) { */ if (dport >= tsport && dport <= tsport + 20) { skb = (struct sk_buff *) pktbuf; htsf = dhd_get_htsf(dhd, 0); memset(skb->data + 44, 0, 2); /* clear checksum */ memcpy(skb->data+82, &oldmagic, 2); memcpy(skb->data+84, &htsf, 4); memset(&ts, 0, sizeof(htsfts_t)); ts.magic = HTSFMAGIC; ts.prio = PKTPRIO(pktbuf); ts.seqnum = htsf_seqnum++; ts.c10 = get_cycles(); ts.t10 = htsf; ts.endmagic = HTSFENDMAGIC; memcpy(skb->data + HTSF_HOSTOFFSET, &ts, sizeof(ts)); } } static void dhd_dump_htsfhisto(histo_t *his, char *s) { int pktcnt = 0, curval = 0, i; for (i = 0; i < (NUMBIN-2); i++) { curval += 500; printf("%d ", his->bin[i]); pktcnt += his->bin[i]; } printf(" max: %d TotPkt: %d neg: %d [%s]\n", his->bin[NUMBIN-2], pktcnt, his->bin[NUMBIN-1], s); } static void sorttobin(int value, histo_t *histo) { int i, binval = 0; if (value < 0) { histo->bin[NUMBIN-1]++; return; } if (value > histo->bin[NUMBIN-2]) /* store the max value */ histo->bin[NUMBIN-2] = value; for (i = 0; i < (NUMBIN-2); i++) { binval += 500; /* 500m s bins */ if (value <= binval) { histo->bin[i]++; return; } } histo->bin[NUMBIN-3]++; } static void dhd_htsf_addrxts(dhd_pub_t *dhdp, void *pktbuf) { dhd_info_t *dhd = (dhd_info_t *)dhdp->info; struct sk_buff *skb; char *p1; uint16 old_magic; int d1, d2, d3, end2end; htsfts_t *htsf_ts; uint32 htsf; skb = PKTTONATIVE(dhdp->osh, pktbuf); p1 = (char*)PKTDATA(dhdp->osh, pktbuf); if (PKTLEN(osh, pktbuf) > HTSF_MINLEN) { memcpy(&old_magic, p1+78, 2); htsf_ts = (htsfts_t*) (p1 + HTSF_HOSTOFFSET - 4); } else return; if (htsf_ts->magic == HTSFMAGIC) { htsf_ts->tE0 = dhd_get_htsf(dhd, 0); htsf_ts->cE0 = get_cycles(); } if (old_magic == 0xACAC) { tspktcnt++; htsf = dhd_get_htsf(dhd, 0); memcpy(skb->data+92, &htsf, sizeof(uint32)); memcpy(&ts[tsidx].t1, skb->data+80, 16); d1 = ts[tsidx].t2 - ts[tsidx].t1; d2 = ts[tsidx].t3 - ts[tsidx].t2; d3 = ts[tsidx].t4 - ts[tsidx].t3; end2end = ts[tsidx].t4 - ts[tsidx].t1; sorttobin(d1, &vi_d1); sorttobin(d2, &vi_d2); sorttobin(d3, &vi_d3); sorttobin(end2end, &vi_d4); if (end2end > 0 && end2end > maxdelay) { maxdelay = end2end; maxdelaypktno = tspktcnt; memcpy(&maxdelayts, &ts[tsidx], 16); } if (++tsidx >= TSMAX) tsidx = 0; } } uint32 dhd_get_htsf(dhd_info_t *dhd, int ifidx) { uint32 htsf = 0, cur_cycle, delta, delta_us; uint32 factor, baseval, baseval2; cycles_t t; t = get_cycles(); cur_cycle = t; if (cur_cycle > dhd->htsf.last_cycle) delta = cur_cycle - dhd->htsf.last_cycle; else { delta = cur_cycle + (0xFFFFFFFF - dhd->htsf.last_cycle); } delta = delta >> 4; if (dhd->htsf.coef) { /* times ten to get the first digit */ factor = (dhd->htsf.coef*10 + dhd->htsf.coefdec1); baseval = (delta*10)/factor; baseval2 = (delta*10)/(factor+1); delta_us = (baseval - (((baseval - baseval2) * dhd->htsf.coefdec2)) / 10); htsf = (delta_us << 4) + dhd->htsf.last_tsf + HTSF_BUS_DELAY; } else { DHD_ERROR(("-------dhd->htsf.coef = 0 -------\n")); } return htsf; } static void dhd_dump_latency(void) { int i, max = 0; int d1, d2, d3, d4, d5; printf("T1 T2 T3 T4 d1 d2 t4-t1 i \n"); for (i = 0; i < TSMAX; i++) { d1 = ts[i].t2 - ts[i].t1; d2 = ts[i].t3 - ts[i].t2; d3 = ts[i].t4 - ts[i].t3; d4 = ts[i].t4 - ts[i].t1; d5 = ts[max].t4-ts[max].t1; if (d4 > d5 && d4 > 0) { max = i; } printf("%08X %08X %08X %08X \t%d %d %d %d i=%d\n", ts[i].t1, ts[i].t2, ts[i].t3, ts[i].t4, d1, d2, d3, d4, i); } printf("current idx = %d \n", tsidx); printf("Highest latency %d pkt no.%d total=%d\n", maxdelay, maxdelaypktno, tspktcnt); printf("%08X %08X %08X %08X \t%d %d %d %d\n", maxdelayts.t1, maxdelayts.t2, maxdelayts.t3, maxdelayts.t4, maxdelayts.t2 - maxdelayts.t1, maxdelayts.t3 - maxdelayts.t2, maxdelayts.t4 - maxdelayts.t3, maxdelayts.t4 - maxdelayts.t1); } static int dhd_ioctl_htsf_get(dhd_info_t *dhd, int ifidx) { wl_ioctl_t ioc; char buf[32]; int ret; uint32 s1, s2; struct tsf { uint32 low; uint32 high; } tsf_buf; memset(&ioc, 0, sizeof(ioc)); memset(&tsf_buf, 0, sizeof(tsf_buf)); ioc.cmd = WLC_GET_VAR; ioc.buf = buf; ioc.len = (uint)sizeof(buf); ioc.set = FALSE; strcpy(buf, "tsf"); s1 = dhd_get_htsf(dhd, 0); if ((ret = dhd_wl_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len)) < 0) { if (ret == -EIO) { DHD_ERROR(("%s: tsf is not supported by device\n", dhd_ifname(&dhd->pub, ifidx))); return -EOPNOTSUPP; } return ret; } s2 = dhd_get_htsf(dhd, 0); memcpy(&tsf_buf, buf, sizeof(tsf_buf)); printf(" TSF_h=%04X lo=%08X Calc:htsf=%08X, coef=%d.%d%d delta=%d ", tsf_buf.high, tsf_buf.low, s2, dhd->htsf.coef, dhd->htsf.coefdec1, dhd->htsf.coefdec2, s2-tsf_buf.low); printf("lasttsf=%08X lastcycle=%08X\n", dhd->htsf.last_tsf, dhd->htsf.last_cycle); return 0; } void htsf_update(dhd_info_t *dhd, void *data) { static ulong cur_cycle = 0, prev_cycle = 0; uint32 htsf, tsf_delta = 0; uint32 hfactor = 0, cyc_delta, dec1 = 0, dec2, dec3, tmp; ulong b, a; cycles_t t; /* cycles_t in inlcude/mips/timex.h */ t = get_cycles(); prev_cycle = cur_cycle; cur_cycle = t; if (cur_cycle > prev_cycle) cyc_delta = cur_cycle - prev_cycle; else { b = cur_cycle; a = prev_cycle; cyc_delta = cur_cycle + (0xFFFFFFFF - prev_cycle); } if (data == NULL) printf(" tsf update ata point er is null \n"); memcpy(&prev_tsf, &cur_tsf, sizeof(tsf_t)); memcpy(&cur_tsf, data, sizeof(tsf_t)); if (cur_tsf.low == 0) { DHD_INFO((" ---- 0 TSF, do not update, return\n")); return; } if (cur_tsf.low > prev_tsf.low) tsf_delta = (cur_tsf.low - prev_tsf.low); else { DHD_INFO((" ---- tsf low is smaller cur_tsf= %08X, prev_tsf=%08X, \n", cur_tsf.low, prev_tsf.low)); if (cur_tsf.high > prev_tsf.high) { tsf_delta = cur_tsf.low + (0xFFFFFFFF - prev_tsf.low); DHD_INFO((" ---- Wrap around tsf coutner adjusted TSF=%08X\n", tsf_delta)); } else return; /* do not update */ } if (tsf_delta) { hfactor = cyc_delta / tsf_delta; tmp = (cyc_delta - (hfactor * tsf_delta))*10; dec1 = tmp/tsf_delta; dec2 = ((tmp - dec1*tsf_delta)*10) / tsf_delta; tmp = (tmp - (dec1*tsf_delta))*10; dec3 = ((tmp - dec2*tsf_delta)*10) / tsf_delta; if (dec3 > 4) { if (dec2 == 9) { dec2 = 0; if (dec1 == 9) { dec1 = 0; hfactor++; } else { dec1++; } } else dec2++; } } if (hfactor) { htsf = ((cyc_delta * 10) / (hfactor*10+dec1)) + prev_tsf.low; dhd->htsf.coef = hfactor; dhd->htsf.last_cycle = cur_cycle; dhd->htsf.last_tsf = cur_tsf.low; dhd->htsf.coefdec1 = dec1; dhd->htsf.coefdec2 = dec2; } else { htsf = prev_tsf.low; } } #endif /* WLMEDIA_HTSF */