/* * Copyright (c) 2010 Broadcom Corporation * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "dhd.h" #include "dhd_bus.h" #include "dhd_proto.h" #include "dhd_dbg.h" #include "wl_cfg80211.h" #include "bcmchip.h" #if defined(CONFIG_PM_SLEEP) #include atomic_t brcmf_mmc_suspend; #endif /* defined(CONFIG_PM_SLEEP) */ MODULE_AUTHOR("Broadcom Corporation"); MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN fullmac driver."); MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN fullmac cards"); MODULE_LICENSE("Dual BSD/GPL"); /* Interface control information */ struct brcmf_if { struct brcmf_info *info; /* back pointer to brcmf_info */ /* OS/stack specifics */ struct net_device *net; struct net_device_stats stats; int idx; /* iface idx in dongle */ int state; /* interface state */ uint subunit; /* subunit */ u8 mac_addr[ETH_ALEN]; /* assigned MAC address */ bool attached; /* Delayed attachment when unset */ bool txflowcontrol; /* Per interface flow control indicator */ char name[IFNAMSIZ]; /* linux interface name */ }; /* Local private structure (extension of pub) */ struct brcmf_info { struct brcmf_pub pub; /* OS/stack specifics */ struct brcmf_if *iflist[BRCMF_MAX_IFS]; struct semaphore proto_sem; wait_queue_head_t ioctl_resp_wait; /* Thread to issue ioctl for multicast */ struct task_struct *sysioc_tsk; struct semaphore sysioc_sem; bool set_multicast; bool set_macaddress; u8 macvalue[ETH_ALEN]; atomic_t pend_8021x_cnt; }; /* Error bits */ module_param(brcmf_msg_level, int, 0); /* Spawn a thread for system ioctls (set mac, set mcast) */ uint brcmf_sysioc = true; module_param(brcmf_sysioc, uint, 0); /* ARP offload agent mode : Enable ARP Host Auto-Reply and ARP Peer Auto-Reply */ uint brcmf_arp_mode = 0xb; module_param(brcmf_arp_mode, uint, 0); /* ARP offload enable */ uint brcmf_arp_enable = true; module_param(brcmf_arp_enable, uint, 0); /* Global Pkt filter enable control */ uint brcmf_pkt_filter_enable = true; module_param(brcmf_pkt_filter_enable, uint, 0); /* Pkt filter init setup */ uint brcmf_pkt_filter_init; module_param(brcmf_pkt_filter_init, uint, 0); /* Pkt filter mode control */ uint brcmf_master_mode = true; module_param(brcmf_master_mode, uint, 0); module_param(brcmf_dongle_memsize, int, 0); /* Contorl fw roaming */ uint brcmf_roam = 1; /* Control radio state */ uint brcmf_radio_up = 1; /* Network inteface name */ char iface_name[IFNAMSIZ] = "wlan"; module_param_string(iface_name, iface_name, IFNAMSIZ, 0); /* The following are specific to the SDIO dongle */ /* IOCTL response timeout */ int brcmf_ioctl_timeout_msec = IOCTL_RESP_TIMEOUT; /* Idle timeout for backplane clock */ int brcmf_idletime = BRCMF_IDLETIME_TICKS; module_param(brcmf_idletime, int, 0); /* Use polling */ uint brcmf_poll; module_param(brcmf_poll, uint, 0); /* Use interrupts */ uint brcmf_intr = true; module_param(brcmf_intr, uint, 0); /* SDIO Drive Strength (in milliamps) */ uint brcmf_sdiod_drive_strength = 6; module_param(brcmf_sdiod_drive_strength, uint, 0); /* Tx/Rx bounds */ module_param(brcmf_txbound, uint, 0); module_param(brcmf_rxbound, uint, 0); #ifdef SDTEST /* Echo packet generator (pkts/s) */ uint brcmf_pktgen; module_param(brcmf_pktgen, uint, 0); /* Echo packet len (0 => sawtooth, max 2040) */ uint brcmf_pktgen_len; module_param(brcmf_pktgen_len, uint, 0); #endif static int brcmf_toe_get(struct brcmf_info *drvr_priv, int idx, u32 *toe_ol); static int brcmf_toe_set(struct brcmf_info *drvr_priv, int idx, u32 toe_ol); static int brcmf_host_event(struct brcmf_info *drvr_priv, int *ifidx, void *pktdata, struct brcmf_event_msg *event_ptr, void **data_ptr); /* * Generalized timeout mechanism. Uses spin sleep with exponential * back-off until * the sleep time reaches one jiffy, then switches over to task delay. Usage: * * brcmf_timeout_start(&tmo, usec); * while (!brcmf_timeout_expired(&tmo)) * if (poll_something()) * break; * if (brcmf_timeout_expired(&tmo)) * fatal(); */ void brcmf_timeout_start(struct brcmf_timeout *tmo, uint usec) { tmo->limit = usec; tmo->increment = 0; tmo->elapsed = 0; tmo->tick = 1000000 / HZ; } int brcmf_timeout_expired(struct brcmf_timeout *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) { udelay(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; } static int brcmf_net2idx(struct brcmf_info *drvr_priv, struct net_device *net) { int i = 0; while (i < BRCMF_MAX_IFS) { if (drvr_priv->iflist[i] && (drvr_priv->iflist[i]->net == net)) return i; i++; } return BRCMF_BAD_IF; } int brcmf_ifname2idx(struct brcmf_info *drvr_priv, char *name) { int i = BRCMF_MAX_IFS; if (name == NULL || *name == '\0') return 0; while (--i > 0) if (drvr_priv->iflist[i] && !strncmp(drvr_priv->iflist[i]->name, name, IFNAMSIZ)) break; BRCMF_TRACE(("%s: return idx %d for \"%s\"\n", __func__, i, name)); return i; /* default - the primary interface */ } char *brcmf_ifname(struct brcmf_pub *drvr, int ifidx) { struct brcmf_info *drvr_priv = drvr->info; if (ifidx < 0 || ifidx >= BRCMF_MAX_IFS) { BRCMF_ERROR(("%s: ifidx %d out of range\n", __func__, ifidx)); return ""; } if (drvr_priv->iflist[ifidx] == NULL) { BRCMF_ERROR(("%s: null i/f %d\n", __func__, ifidx)); return ""; } if (drvr_priv->iflist[ifidx]->net) return drvr_priv->iflist[ifidx]->net->name; return ""; } static void _brcmf_set_multicast_list(struct brcmf_info *drvr_priv, int ifidx) { struct net_device *dev; struct netdev_hw_addr *ha; u32 allmulti, cnt; struct brcmf_ioctl ioc; char *buf, *bufp; uint buflen; int ret; dev = drvr_priv->iflist[ifidx]->net; cnt = netdev_mc_count(dev); /* 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 * ETH_ALEN); bufp = buf = kmalloc(buflen, GFP_ATOMIC); if (!bufp) { BRCMF_ERROR(("%s: out of memory for mcast_list, cnt %d\n", brcmf_ifname(&drvr_priv->pub, ifidx), cnt)); return; } strcpy(bufp, "mcast_list"); bufp += strlen("mcast_list") + 1; cnt = cpu_to_le32(cnt); memcpy(bufp, &cnt, sizeof(cnt)); bufp += sizeof(cnt); netdev_for_each_mc_addr(ha, dev) { if (!cnt) break; memcpy(bufp, ha->addr, ETH_ALEN); bufp += ETH_ALEN; cnt--; } memset(&ioc, 0, sizeof(ioc)); ioc.cmd = BRCMF_C_SET_VAR; ioc.buf = buf; ioc.len = buflen; ioc.set = true; ret = brcmf_proto_ioctl(&drvr_priv->pub, ifidx, &ioc, ioc.buf, ioc.len); if (ret < 0) { BRCMF_ERROR(("%s: set mcast_list failed, cnt %d\n", brcmf_ifname(&drvr_priv->pub, ifidx), cnt)); allmulti = cnt ? true : allmulti; } kfree(buf); /* 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); buf = kmalloc(buflen, GFP_ATOMIC); if (!buf) { BRCMF_ERROR(("%s: out of memory for allmulti\n", brcmf_ifname(&drvr_priv->pub, ifidx))); return; } allmulti = cpu_to_le32(allmulti); if (!brcmu_mkiovar ("allmulti", (void *)&allmulti, sizeof(allmulti), buf, buflen)) { BRCMF_ERROR(("%s: mkiovar failed for allmulti, datalen %d " "buflen %u\n", brcmf_ifname(&drvr_priv->pub, ifidx), (int)sizeof(allmulti), buflen)); kfree(buf); return; } memset(&ioc, 0, sizeof(ioc)); ioc.cmd = BRCMF_C_SET_VAR; ioc.buf = buf; ioc.len = buflen; ioc.set = true; ret = brcmf_proto_ioctl(&drvr_priv->pub, ifidx, &ioc, ioc.buf, ioc.len); if (ret < 0) { BRCMF_ERROR(("%s: set allmulti %d failed\n", brcmf_ifname(&drvr_priv->pub, ifidx), le32_to_cpu(allmulti))); } kfree(buf); /* Finally, pick up the PROMISC flag as well, like the NIC driver does */ allmulti = (dev->flags & IFF_PROMISC) ? true : false; allmulti = cpu_to_le32(allmulti); memset(&ioc, 0, sizeof(ioc)); ioc.cmd = BRCMF_C_SET_PROMISC; ioc.buf = &allmulti; ioc.len = sizeof(allmulti); ioc.set = true; ret = brcmf_proto_ioctl(&drvr_priv->pub, ifidx, &ioc, ioc.buf, ioc.len); if (ret < 0) { BRCMF_ERROR(("%s: set promisc %d failed\n", brcmf_ifname(&drvr_priv->pub, ifidx), le32_to_cpu(allmulti))); } } static int _brcmf_set_mac_address(struct brcmf_info *drvr_priv, int ifidx, u8 *addr) { char buf[32]; struct brcmf_ioctl ioc; int ret; BRCMF_TRACE(("%s enter\n", __func__)); if (!brcmu_mkiovar ("cur_etheraddr", (char *)addr, ETH_ALEN, buf, 32)) { BRCMF_ERROR(("%s: mkiovar failed for cur_etheraddr\n", brcmf_ifname(&drvr_priv->pub, ifidx))); return -1; } memset(&ioc, 0, sizeof(ioc)); ioc.cmd = BRCMF_C_SET_VAR; ioc.buf = buf; ioc.len = 32; ioc.set = true; ret = brcmf_proto_ioctl(&drvr_priv->pub, ifidx, &ioc, ioc.buf, ioc.len); if (ret < 0) { BRCMF_ERROR(("%s: set cur_etheraddr failed\n", brcmf_ifname(&drvr_priv->pub, ifidx))); } else { memcpy(drvr_priv->iflist[ifidx]->net->dev_addr, addr, ETH_ALEN); } return ret; } #ifdef SOFTAP extern struct net_device *ap_net_dev; #endif /* Virtual interfaces only ((ifp && ifp->info && ifp->idx == true) */ static void brcmf_op_if(struct brcmf_if *ifp) { struct brcmf_info *drvr_priv; int ret = 0, err = 0; drvr_priv = ifp->info; BRCMF_TRACE(("%s: idx %d, state %d\n", __func__, ifp->idx, ifp->state)); switch (ifp->state) { case BRCMF_E_IF_ADD: /* * Delete the existing interface before overwriting it * in case we missed the BRCMF_E_IF_DEL event. */ if (ifp->net != NULL) { BRCMF_ERROR(("%s: ERROR: netdev:%s already exists, " "try free & unregister\n", __func__, ifp->net->name)); netif_stop_queue(ifp->net); unregister_netdev(ifp->net); free_netdev(ifp->net); } /* Allocate etherdev, including space for private structure */ ifp->net = alloc_etherdev(sizeof(drvr_priv)); if (!ifp->net) { BRCMF_ERROR(("%s: OOM - alloc_etherdev\n", __func__)); ret = -ENOMEM; } if (ret == 0) { strcpy(ifp->net->name, ifp->name); memcpy(netdev_priv(ifp->net), &drvr_priv, sizeof(drvr_priv)); err = brcmf_net_attach(&drvr_priv->pub, ifp->idx); if (err != 0) { BRCMF_ERROR(("%s: brcmf_net_attach failed, " "err %d\n", __func__, err)); ret = -EOPNOTSUPP; } else { #ifdef SOFTAP /* semaphore that the soft AP CODE waits on */ extern struct semaphore ap_eth_sema; /* 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_sema); #endif BRCMF_TRACE(("\n ==== pid:%x, net_device for " "if:%s created ===\n\n", current->pid, ifp->net->name)); ifp->state = 0; } } break; case BRCMF_E_IF_DEL: if (ifp->net != NULL) { BRCMF_TRACE(("\n%s: got 'WLC_E_IF_DEL' state\n", __func__)); netif_stop_queue(ifp->net); unregister_netdev(ifp->net); ret = BRCMF_DEL_IF; /* Make sure the free_netdev() is called */ } break; default: BRCMF_ERROR(("%s: bad op %d\n", __func__, ifp->state)); break; } if (ret < 0) { if (ifp->net) free_netdev(ifp->net); drvr_priv->iflist[ifp->idx] = NULL; kfree(ifp); #ifdef SOFTAP if (ifp->net == ap_net_dev) ap_net_dev = NULL; /* NULL SOFTAP global wl0.1 as well */ #endif /* SOFTAP */ } } static int _brcmf_sysioc_thread(void *data) { struct brcmf_info *drvr_priv = (struct brcmf_info *) data; int i; #ifdef SOFTAP bool in_ap = false; #endif allow_signal(SIGTERM); while (down_interruptible(&drvr_priv->sysioc_sem) == 0) { if (kthread_should_stop()) break; for (i = 0; i < BRCMF_MAX_IFS; i++) { struct brcmf_if *ifentry = drvr_priv->iflist[i]; if (ifentry) { #ifdef SOFTAP in_ap = (ap_net_dev != NULL); #endif /* SOFTAP */ if (ifentry->state) brcmf_op_if(ifentry); #ifdef SOFTAP if (drvr_priv->iflist[i] == NULL) { BRCMF_TRACE(("\n\n %s: interface %d " "removed!\n", __func__, i)); continue; } if (in_ap && drvr_priv->set_macaddress) { BRCMF_TRACE(("attempt to set MAC for" " %s in AP Mode," " blocked.\n", ifentry->net->name)); drvr_priv->set_macaddress = false; continue; } if (in_ap && drvr_priv->set_multicast) { BRCMF_TRACE(("attempt to set MULTICAST " "list for %s in AP Mode, " "blocked.\n", ifentry->net->name)); drvr_priv->set_multicast = false; continue; } #endif /* SOFTAP */ if (drvr_priv->set_multicast) { drvr_priv->set_multicast = false; _brcmf_set_multicast_list(drvr_priv, i); } if (drvr_priv->set_macaddress) { drvr_priv->set_macaddress = false; _brcmf_set_mac_address(drvr_priv, i, drvr_priv->macvalue); } } } } return 0; } static int brcmf_netdev_set_mac_address(struct net_device *dev, void *addr) { int ret = 0; struct brcmf_info *drvr_priv = *(struct brcmf_info **) netdev_priv(dev); struct sockaddr *sa = (struct sockaddr *)addr; int ifidx; ifidx = brcmf_net2idx(drvr_priv, dev); if (ifidx == BRCMF_BAD_IF) return -1; memcpy(&drvr_priv->macvalue, sa->sa_data, ETH_ALEN); drvr_priv->set_macaddress = true; up(&drvr_priv->sysioc_sem); return ret; } static void brcmf_netdev_set_multicast_list(struct net_device *dev) { struct brcmf_info *drvr_priv = *(struct brcmf_info **) netdev_priv(dev); int ifidx; ifidx = brcmf_net2idx(drvr_priv, dev); if (ifidx == BRCMF_BAD_IF) return; drvr_priv->set_multicast = true; up(&drvr_priv->sysioc_sem); } int brcmf_sendpkt(struct brcmf_pub *drvr, int ifidx, struct sk_buff *pktbuf) { struct brcmf_info *drvr_priv = drvr->info; /* Reject if down */ if (!drvr->up || (drvr->busstate == BRCMF_BUS_DOWN)) return -ENODEV; /* Update multicast statistic */ if (pktbuf->len >= ETH_ALEN) { u8 *pktdata = (u8 *) (pktbuf->data); struct ethhdr *eh = (struct ethhdr *)pktdata; if (is_multicast_ether_addr(eh->h_dest)) drvr->tx_multicast++; if (ntohs(eh->h_proto) == ETH_P_PAE) atomic_inc(&drvr_priv->pend_8021x_cnt); } /* If the protocol uses a data header, apply it */ brcmf_proto_hdrpush(drvr, ifidx, pktbuf); /* Use bus module to send data frame */ return brcmf_sdbrcm_bus_txdata(drvr->bus, pktbuf); } static int brcmf_netdev_start_xmit(struct sk_buff *skb, struct net_device *net) { int ret; struct brcmf_info *drvr_priv = *(struct brcmf_info **) netdev_priv(net); int ifidx; BRCMF_TRACE(("%s: Enter\n", __func__)); /* Reject if down */ if (!drvr_priv->pub.up || (drvr_priv->pub.busstate == BRCMF_BUS_DOWN)) { BRCMF_ERROR(("%s: xmit rejected pub.up=%d busstate=%d\n", __func__, drvr_priv->pub.up, drvr_priv->pub.busstate)); netif_stop_queue(net); return -ENODEV; } ifidx = brcmf_net2idx(drvr_priv, net); if (ifidx == BRCMF_BAD_IF) { BRCMF_ERROR(("%s: bad ifidx %d\n", __func__, ifidx)); netif_stop_queue(net); return -ENODEV; } /* Make sure there's enough room for any header */ if (skb_headroom(skb) < drvr_priv->pub.hdrlen) { struct sk_buff *skb2; BRCMF_INFO(("%s: insufficient headroom\n", brcmf_ifname(&drvr_priv->pub, ifidx))); drvr_priv->pub.tx_realloc++; skb2 = skb_realloc_headroom(skb, drvr_priv->pub.hdrlen); dev_kfree_skb(skb); skb = skb2; if (skb == NULL) { BRCMF_ERROR(("%s: skb_realloc_headroom failed\n", brcmf_ifname(&drvr_priv->pub, ifidx))); ret = -ENOMEM; goto done; } } ret = brcmf_sendpkt(&drvr_priv->pub, ifidx, skb); done: if (ret) drvr_priv->pub.dstats.tx_dropped++; else drvr_priv->pub.tx_packets++; /* Return ok: we always eat the packet */ return 0; } void brcmf_txflowcontrol(struct brcmf_pub *drvr, int ifidx, bool state) { struct net_device *net; struct brcmf_info *drvr_priv = drvr->info; BRCMF_TRACE(("%s: Enter\n", __func__)); drvr->txoff = state; net = drvr_priv->iflist[ifidx]->net; if (state == ON) netif_stop_queue(net); else netif_wake_queue(net); } void brcmf_rx_frame(struct brcmf_pub *drvr, int ifidx, struct sk_buff *skb, int numpkt) { struct brcmf_info *drvr_priv = drvr->info; unsigned char *eth; uint len; void *data; struct sk_buff *pnext, *save_pktbuf; int i; struct brcmf_if *ifp; struct brcmf_event_msg event; BRCMF_TRACE(("%s: Enter\n", __func__)); save_pktbuf = skb; for (i = 0; skb && i < numpkt; i++, skb = pnext) { pnext = skb->next; skb->next = NULL; /* 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 = drvr_priv->iflist[ifidx]; if (ifp == NULL) ifp = drvr_priv->iflist[0]; skb->dev = ifp->net; skb->protocol = eth_type_trans(skb, skb->dev); if (skb->pkt_type == PACKET_MULTICAST) drvr_priv->pub.rx_multicast++; skb->data = eth; skb->len = len; /* Strip header, count, deliver upward */ skb_pull(skb, ETH_HLEN); /* Process special event packets and then discard them */ if (ntohs(skb->protocol) == ETH_P_LINK_CTL) brcmf_host_event(drvr_priv, &ifidx, skb_mac_header(skb), &event, &data); if (drvr_priv->iflist[ifidx] && !drvr_priv->iflist[ifidx]->state) ifp = drvr_priv->iflist[ifidx]; if (ifp->net) ifp->net->last_rx = jiffies; drvr->dstats.rx_bytes += skb->len; drvr->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. */ netif_rx_ni(skb); } } } void brcmf_txcomplete(struct brcmf_pub *drvr, struct sk_buff *txp, bool success) { uint ifidx; struct brcmf_info *drvr_priv = drvr->info; struct ethhdr *eh; u16 type; brcmf_proto_hdrpull(drvr, &ifidx, txp); eh = (struct ethhdr *)(txp->data); type = ntohs(eh->h_proto); if (type == ETH_P_PAE) atomic_dec(&drvr_priv->pend_8021x_cnt); } static struct net_device_stats *brcmf_netdev_get_stats(struct net_device *net) { struct brcmf_info *drvr_priv = *(struct brcmf_info **) netdev_priv(net); struct brcmf_if *ifp; int ifidx; BRCMF_TRACE(("%s: Enter\n", __func__)); ifidx = brcmf_net2idx(drvr_priv, net); if (ifidx == BRCMF_BAD_IF) return NULL; ifp = drvr_priv->iflist[ifidx]; if (drvr_priv->pub.up) { /* Use the protocol to get dongle stats */ brcmf_proto_dstats(&drvr_priv->pub); } /* Copy dongle stats to net device stats */ ifp->stats.rx_packets = drvr_priv->pub.dstats.rx_packets; ifp->stats.tx_packets = drvr_priv->pub.dstats.tx_packets; ifp->stats.rx_bytes = drvr_priv->pub.dstats.rx_bytes; ifp->stats.tx_bytes = drvr_priv->pub.dstats.tx_bytes; ifp->stats.rx_errors = drvr_priv->pub.dstats.rx_errors; ifp->stats.tx_errors = drvr_priv->pub.dstats.tx_errors; ifp->stats.rx_dropped = drvr_priv->pub.dstats.rx_dropped; ifp->stats.tx_dropped = drvr_priv->pub.dstats.tx_dropped; ifp->stats.multicast = drvr_priv->pub.dstats.multicast; return &ifp->stats; } /* Retrieve current toe component enables, which are kept as a bitmap in toe_ol iovar */ static int brcmf_toe_get(struct brcmf_info *drvr_priv, int ifidx, u32 *toe_ol) { struct brcmf_ioctl ioc; char buf[32]; int ret; memset(&ioc, 0, sizeof(ioc)); ioc.cmd = BRCMF_C_GET_VAR; ioc.buf = buf; ioc.len = (uint) sizeof(buf); ioc.set = false; strcpy(buf, "toe_ol"); ret = brcmf_proto_ioctl(&drvr_priv->pub, ifidx, &ioc, ioc.buf, ioc.len); if (ret < 0) { /* Check for older dongle image that doesn't support toe_ol */ if (ret == -EIO) { BRCMF_ERROR(("%s: toe not supported by device\n", brcmf_ifname(&drvr_priv->pub, ifidx))); return -EOPNOTSUPP; } BRCMF_INFO(("%s: could not get toe_ol: ret=%d\n", brcmf_ifname(&drvr_priv->pub, ifidx), ret)); return ret; } memcpy(toe_ol, buf, sizeof(u32)); return 0; } /* Set current toe component enables in toe_ol iovar, and set toe global enable iovar */ static int brcmf_toe_set(struct brcmf_info *drvr_priv, int ifidx, u32 toe_ol) { struct brcmf_ioctl ioc; char buf[32]; int toe, ret; memset(&ioc, 0, sizeof(ioc)); ioc.cmd = BRCMF_C_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(u32)); ret = brcmf_proto_ioctl(&drvr_priv->pub, ifidx, &ioc, ioc.buf, ioc.len); if (ret < 0) { BRCMF_ERROR(("%s: could not set toe_ol: ret=%d\n", brcmf_ifname(&drvr_priv->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(u32)); ret = brcmf_proto_ioctl(&drvr_priv->pub, ifidx, &ioc, ioc.buf, ioc.len); if (ret < 0) { BRCMF_ERROR(("%s: could not set toe: ret=%d\n", brcmf_ifname(&drvr_priv->pub, ifidx), ret)); return ret; } return 0; } static void brcmf_ethtool_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info) { struct brcmf_info *drvr_priv = *(struct brcmf_info **) netdev_priv(net); sprintf(info->driver, KBUILD_MODNAME); sprintf(info->version, "%lu", drvr_priv->pub.drv_version); sprintf(info->fw_version, "%s", BCM4329_FW_NAME); sprintf(info->bus_info, "%s", dev_name(&brcmf_cfg80211_get_sdio_func()->dev)); } struct ethtool_ops brcmf_ethtool_ops = { .get_drvinfo = brcmf_ethtool_get_drvinfo }; static int brcmf_ethtool(struct brcmf_info *drvr_priv, void *uaddr) { struct ethtool_drvinfo info; char drvname[sizeof(info.driver)]; u32 cmd; struct ethtool_value edata; u32 toe_cmpnt, csum_dir; int ret; BRCMF_TRACE(("%s: Enter\n", __func__)); /* all ethtool calls start with a cmd word */ if (copy_from_user(&cmd, uaddr, sizeof(u32))) 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 requested, identify ourselves */ if (strcmp(drvname, "?dhd") == 0) { sprintf(info.driver, "dhd"); strcpy(info.version, BRCMF_VERSION_STR); } /* otherwise, require dongle to be up */ else if (!drvr_priv->pub.up) { BRCMF_ERROR(("%s: dongle is not up\n", __func__)); return -ENODEV; } /* finally, report dongle driver type */ else if (drvr_priv->pub.iswl) sprintf(info.driver, "wl"); else sprintf(info.driver, "xx"); sprintf(info.version, "%lu", drvr_priv->pub.drv_version); if (copy_to_user(uaddr, &info, sizeof(info))) return -EFAULT; BRCMF_CTL(("%s: given %*s, returning %s\n", __func__, (int)sizeof(drvname), drvname, info.driver)); break; /* Get toe offload components from dongle */ case ETHTOOL_GRXCSUM: case ETHTOOL_GTXCSUM: ret = brcmf_toe_get(drvr_priv, 0, &toe_cmpnt); if (ret < 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 */ ret = brcmf_toe_get(drvr_priv, 0, &toe_cmpnt); if (ret < 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; ret = brcmf_toe_set(drvr_priv, 0, toe_cmpnt); if (ret < 0) return ret; /* If setting TX checksum mode, tell Linux the new mode */ if (cmd == ETHTOOL_STXCSUM) { if (edata.data) drvr_priv->iflist[0]->net->features |= NETIF_F_IP_CSUM; else drvr_priv->iflist[0]->net->features &= ~NETIF_F_IP_CSUM; } break; default: return -EOPNOTSUPP; } return 0; } static int brcmf_netdev_ioctl_entry(struct net_device *net, struct ifreq *ifr, int cmd) { struct brcmf_info *drvr_priv = *(struct brcmf_info **) netdev_priv(net); struct brcmf_c_ioctl ioc; int bcmerror = 0; int buflen = 0; void *buf = NULL; uint driver = 0; int ifidx; bool is_set_key_cmd; ifidx = brcmf_net2idx(drvr_priv, net); BRCMF_TRACE(("%s: ifidx %d, cmd 0x%04x\n", __func__, ifidx, cmd)); if (ifidx == BRCMF_BAD_IF) return -1; if (cmd == SIOCETHTOOL) return brcmf_ethtool(drvr_priv, (void *)ifr->ifr_data); if (cmd != SIOCDEVPRIVATE) 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(struct brcmf_ioctl))) { bcmerror = -EINVAL; goto done; } /* Copy out any buffer passed */ if (ioc.buf) { buflen = min_t(int, ioc.len, BRCMF_IOCTL_MAXLEN); /* optimization for direct ioctl calls from kernel */ /* if (segment_eq(get_fs(), KERNEL_DS)) { buf = ioc.buf; } else { */ { buf = kmalloc(buflen, GFP_ATOMIC); if (!buf) { bcmerror = -ENOMEM; goto done; } if (copy_from_user(buf, ioc.buf, buflen)) { bcmerror = -EINVAL; goto done; } } } /* To differentiate read 4 more byes */ if ((copy_from_user(&driver, (char *)ifr->ifr_data + sizeof(struct brcmf_ioctl), sizeof(uint)) != 0)) { bcmerror = -EINVAL; goto done; } if (!capable(CAP_NET_ADMIN)) { bcmerror = -EPERM; goto done; } /* check for local brcmf ioctl and handle it */ if (driver == BRCMF_IOCTL_MAGIC) { bcmerror = brcmf_c_ioctl((void *)&drvr_priv->pub, &ioc, buf, buflen); if (bcmerror) drvr_priv->pub.bcmerror = bcmerror; goto done; } /* send to dongle (must be up, and wl) */ if ((drvr_priv->pub.busstate != BRCMF_BUS_DATA)) { BRCMF_ERROR(("%s DONGLE_DOWN,__func__\n", __func__)); bcmerror = -EIO; goto done; } if (!drvr_priv->pub.iswl) { bcmerror = -EIO; goto done; } /* * Intercept BRCMF_C_SET_KEY IOCTL - serialize M4 send and * set key IOCTL to prevent M4 encryption. */ is_set_key_cmd = ((ioc.cmd == BRCMF_C_SET_KEY) || ((ioc.cmd == BRCMF_C_SET_VAR) && !(strncmp("wsec_key", ioc.buf, 9))) || ((ioc.cmd == BRCMF_C_SET_VAR) && !(strncmp("bsscfg:wsec_key", ioc.buf, 15)))); if (is_set_key_cmd) brcmf_netdev_wait_pend8021x(net); bcmerror = brcmf_proto_ioctl(&drvr_priv->pub, ifidx, (struct brcmf_ioctl *)&ioc, buf, buflen); done: if (!bcmerror && buf && ioc.buf) { if (copy_to_user(ioc.buf, buf, buflen)) bcmerror = -EFAULT; } kfree(buf); if (bcmerror > 0) bcmerror = 0; return bcmerror; } static int brcmf_netdev_stop(struct net_device *net) { #if !defined(IGNORE_ETH0_DOWN) struct brcmf_info *drvr_priv = *(struct brcmf_info **) netdev_priv(net); BRCMF_TRACE(("%s: Enter\n", __func__)); brcmf_cfg80211_down(); if (drvr_priv->pub.up == 0) return 0; /* Set state and stop OS transmissions */ drvr_priv->pub.up = 0; netif_stop_queue(net); #else BRCMF_ERROR(("BYPASS %s:due to BRCM compilation: under investigation\n", __func__)); #endif /* !defined(IGNORE_ETH0_DOWN) */ return 0; } static int brcmf_netdev_open(struct net_device *net) { struct brcmf_info *drvr_priv = *(struct brcmf_info **) netdev_priv(net); u32 toe_ol; int ifidx = brcmf_net2idx(drvr_priv, net); s32 ret = 0; BRCMF_TRACE(("%s: ifidx %d\n", __func__, ifidx)); if (ifidx == 0) { /* do it only for primary eth0 */ /* try to bring up bus */ ret = brcmf_bus_start(&drvr_priv->pub); if (ret != 0) { BRCMF_ERROR(("%s: failed with code %d\n", __func__, ret)); return -1; } atomic_set(&drvr_priv->pend_8021x_cnt, 0); memcpy(net->dev_addr, drvr_priv->pub.mac, ETH_ALEN); /* Get current TOE mode from dongle */ if (brcmf_toe_get(drvr_priv, ifidx, &toe_ol) >= 0 && (toe_ol & TOE_TX_CSUM_OL) != 0) drvr_priv->iflist[ifidx]->net->features |= NETIF_F_IP_CSUM; else drvr_priv->iflist[ifidx]->net->features &= ~NETIF_F_IP_CSUM; } /* Allow transmit calls */ netif_start_queue(net); drvr_priv->pub.up = 1; if (unlikely(brcmf_cfg80211_up())) { BRCMF_ERROR(("%s: failed to bring up cfg80211\n", __func__)); return -1; } return ret; } int brcmf_add_if(struct brcmf_info *drvr_priv, int ifidx, void *handle, char *name, u8 *mac_addr, u32 flags, u8 bssidx) { struct brcmf_if *ifp; BRCMF_TRACE(("%s: idx %d, handle->%p\n", __func__, ifidx, handle)); ifp = drvr_priv->iflist[ifidx]; if (!ifp) { ifp = kmalloc(sizeof(struct brcmf_if), GFP_ATOMIC); if (!ifp) { BRCMF_ERROR(("%s: OOM - struct brcmf_if\n", __func__)); return -ENOMEM; } } memset(ifp, 0, sizeof(struct brcmf_if)); ifp->info = drvr_priv; drvr_priv->iflist[ifidx] = ifp; strlcpy(ifp->name, name, IFNAMSIZ); if (mac_addr != NULL) memcpy(&ifp->mac_addr, mac_addr, ETH_ALEN); if (handle == NULL) { ifp->state = BRCMF_E_IF_ADD; ifp->idx = ifidx; up(&drvr_priv->sysioc_sem); } else ifp->net = (struct net_device *)handle; return 0; } void brcmf_del_if(struct brcmf_info *drvr_priv, int ifidx) { struct brcmf_if *ifp; BRCMF_TRACE(("%s: idx %d\n", __func__, ifidx)); ifp = drvr_priv->iflist[ifidx]; if (!ifp) { BRCMF_ERROR(("%s: Null interface\n", __func__)); return; } ifp->state = BRCMF_E_IF_DEL; ifp->idx = ifidx; up(&drvr_priv->sysioc_sem); } struct brcmf_pub *brcmf_attach(struct brcmf_bus *bus, uint bus_hdrlen) { struct brcmf_info *drvr_priv = NULL; struct net_device *net; BRCMF_TRACE(("%s: Enter\n", __func__)); /* Allocate etherdev, including space for private structure */ net = alloc_etherdev(sizeof(drvr_priv)); if (!net) { BRCMF_ERROR(("%s: OOM - alloc_etherdev\n", __func__)); goto fail; } /* Allocate primary brcmf_info */ drvr_priv = kzalloc(sizeof(struct brcmf_info), GFP_ATOMIC); if (!drvr_priv) { BRCMF_ERROR(("%s: OOM - alloc brcmf_info\n", __func__)); goto fail; } /* * Save the brcmf_info into the priv */ memcpy(netdev_priv(net), &drvr_priv, sizeof(drvr_priv)); /* 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 (brcmf_add_if(drvr_priv, 0, (void *)net, net->name, NULL, 0, 0) == BRCMF_BAD_IF) goto fail; net->netdev_ops = NULL; sema_init(&drvr_priv->proto_sem, 1); /* Initialize other structure content */ init_waitqueue_head(&drvr_priv->ioctl_resp_wait); /* Link to info module */ drvr_priv->pub.info = drvr_priv; /* Link to bus module */ drvr_priv->pub.bus = bus; drvr_priv->pub.hdrlen = bus_hdrlen; /* Attach and link in the protocol */ if (brcmf_proto_attach(&drvr_priv->pub) != 0) { BRCMF_ERROR(("brcmf_prot_attach failed\n")); goto fail; } /* Attach and link in the cfg80211 */ if (unlikely(brcmf_cfg80211_attach(net, &drvr_priv->pub))) { BRCMF_ERROR(("wl_cfg80211_attach failed\n")); goto fail; } if (brcmf_sysioc) { sema_init(&drvr_priv->sysioc_sem, 0); drvr_priv->sysioc_tsk = kthread_run(_brcmf_sysioc_thread, drvr_priv, "_brcmf_sysioc"); if (IS_ERR(drvr_priv->sysioc_tsk)) { printk(KERN_WARNING "_brcmf_sysioc thread failed to start\n"); drvr_priv->sysioc_tsk = NULL; } } else drvr_priv->sysioc_tsk = NULL; /* * Save the brcmf_info into the priv */ memcpy(netdev_priv(net), &drvr_priv, sizeof(drvr_priv)); #if defined(CONFIG_PM_SLEEP) atomic_set(&brcmf_mmc_suspend, false); #endif /* defined(CONFIG_PM_SLEEP) */ return &drvr_priv->pub; fail: if (net) free_netdev(net); if (drvr_priv) brcmf_detach(&drvr_priv->pub); return NULL; } int brcmf_bus_start(struct brcmf_pub *drvr) { int ret = -1; struct brcmf_info *drvr_priv = drvr->info; /* Room for "event_msgs" + '\0' + bitvec */ char iovbuf[BRCMF_EVENTING_MASK_LEN + 12]; BRCMF_TRACE(("%s:\n", __func__)); /* Bring up the bus */ ret = brcmf_sdbrcm_bus_init(&drvr_priv->pub, true); if (ret != 0) { BRCMF_ERROR(("%s, brcmf_sdbrcm_bus_init failed %d\n", __func__, ret)); return ret; } /* If bus is not ready, can't come up */ if (drvr_priv->pub.busstate != BRCMF_BUS_DATA) { BRCMF_ERROR(("%s failed bus is not ready\n", __func__)); return -ENODEV; } brcmu_mkiovar("event_msgs", drvr->eventmask, BRCMF_EVENTING_MASK_LEN, iovbuf, sizeof(iovbuf)); brcmf_proto_cdc_query_ioctl(drvr, 0, BRCMF_C_GET_VAR, iovbuf, sizeof(iovbuf)); memcpy(drvr->eventmask, iovbuf, BRCMF_EVENTING_MASK_LEN); setbit(drvr->eventmask, BRCMF_E_SET_SSID); setbit(drvr->eventmask, BRCMF_E_PRUNE); setbit(drvr->eventmask, BRCMF_E_AUTH); setbit(drvr->eventmask, BRCMF_E_REASSOC); setbit(drvr->eventmask, BRCMF_E_REASSOC_IND); setbit(drvr->eventmask, BRCMF_E_DEAUTH_IND); setbit(drvr->eventmask, BRCMF_E_DISASSOC_IND); setbit(drvr->eventmask, BRCMF_E_DISASSOC); setbit(drvr->eventmask, BRCMF_E_JOIN); setbit(drvr->eventmask, BRCMF_E_ASSOC_IND); setbit(drvr->eventmask, BRCMF_E_PSK_SUP); setbit(drvr->eventmask, BRCMF_E_LINK); setbit(drvr->eventmask, BRCMF_E_NDIS_LINK); setbit(drvr->eventmask, BRCMF_E_MIC_ERROR); setbit(drvr->eventmask, BRCMF_E_PMKID_CACHE); setbit(drvr->eventmask, BRCMF_E_TXFAIL); setbit(drvr->eventmask, BRCMF_E_JOIN_START); setbit(drvr->eventmask, BRCMF_E_SCAN_COMPLETE); /* enable dongle roaming event */ drvr->pktfilter_count = 1; /* Setup filter to allow only unicast */ drvr->pktfilter[0] = "100 0 0 0 0x01 0x00"; /* Bus is ready, do any protocol initialization */ ret = brcmf_proto_init(&drvr_priv->pub); if (ret < 0) return ret; return 0; } static struct net_device_ops brcmf_netdev_ops_pri = { .ndo_open = brcmf_netdev_open, .ndo_stop = brcmf_netdev_stop, .ndo_get_stats = brcmf_netdev_get_stats, .ndo_do_ioctl = brcmf_netdev_ioctl_entry, .ndo_start_xmit = brcmf_netdev_start_xmit, .ndo_set_mac_address = brcmf_netdev_set_mac_address, .ndo_set_rx_mode = brcmf_netdev_set_multicast_list, }; int brcmf_net_attach(struct brcmf_pub *drvr, int ifidx) { struct brcmf_info *drvr_priv = drvr->info; struct net_device *net; u8 temp_addr[ETH_ALEN] = { 0x00, 0x90, 0x4c, 0x11, 0x22, 0x33}; BRCMF_TRACE(("%s: ifidx %d\n", __func__, ifidx)); net = drvr_priv->iflist[ifidx]->net; net->netdev_ops = &brcmf_netdev_ops_pri; /* * We have to use the primary MAC for virtual interfaces */ if (ifidx != 0) { /* for virtual interfaces use the primary MAC */ memcpy(temp_addr, drvr_priv->pub.mac, ETH_ALEN); } if (ifidx == 1) { BRCMF_TRACE(("%s ACCESS POINT MAC:\n", __func__)); /* ACCESSPOINT INTERFACE CASE */ temp_addr[0] |= 0X02; /* set bit 2 , - Locally Administered address */ } net->hard_header_len = ETH_HLEN + drvr_priv->pub.hdrlen; net->ethtool_ops = &brcmf_ethtool_ops; drvr_priv->pub.rxsz = net->mtu + net->hard_header_len + drvr_priv->pub.hdrlen; memcpy(net->dev_addr, temp_addr, ETH_ALEN); if (register_netdev(net) != 0) { BRCMF_ERROR(("%s: couldn't register the net device\n", __func__)); goto fail; } BRCMF_INFO(("%s: Broadcom Dongle Host Driver\n", net->name)); return 0; fail: net->netdev_ops = NULL; return -EBADE; } static void brcmf_bus_detach(struct brcmf_pub *drvr) { struct brcmf_info *drvr_priv; BRCMF_TRACE(("%s: Enter\n", __func__)); if (drvr) { drvr_priv = drvr->info; if (drvr_priv) { /* Stop the protocol module */ brcmf_proto_stop(&drvr_priv->pub); /* Stop the bus module */ brcmf_sdbrcm_bus_stop(drvr_priv->pub.bus, true); } } } void brcmf_detach(struct brcmf_pub *drvr) { struct brcmf_info *drvr_priv; BRCMF_TRACE(("%s: Enter\n", __func__)); if (drvr) { drvr_priv = drvr->info; if (drvr_priv) { struct brcmf_if *ifp; int i; for (i = 1; i < BRCMF_MAX_IFS; i++) if (drvr_priv->iflist[i]) brcmf_del_if(drvr_priv, i); ifp = drvr_priv->iflist[0]; if (ifp->net->netdev_ops == &brcmf_netdev_ops_pri) { brcmf_netdev_stop(ifp->net); unregister_netdev(ifp->net); } if (drvr_priv->sysioc_tsk) { send_sig(SIGTERM, drvr_priv->sysioc_tsk, 1); kthread_stop(drvr_priv->sysioc_tsk); drvr_priv->sysioc_tsk = NULL; } brcmf_bus_detach(drvr); if (drvr->prot) brcmf_proto_detach(drvr); brcmf_cfg80211_detach(); free_netdev(ifp->net); kfree(ifp); kfree(drvr_priv); } } } static void __exit brcmf_module_cleanup(void) { BRCMF_TRACE(("%s: Enter\n", __func__)); brcmf_bus_unregister(); } static int __init brcmf_module_init(void) { int error; BRCMF_TRACE(("%s: Enter\n", __func__)); error = brcmf_bus_register(); if (error) { BRCMF_ERROR(("%s: brcmf_bus_register failed\n", __func__)); goto failed; } return 0; failed: return -EINVAL; } module_init(brcmf_module_init); module_exit(brcmf_module_cleanup); int brcmf_os_proto_block(struct brcmf_pub *drvr) { struct brcmf_info *drvr_priv = drvr->info; if (drvr_priv) { down(&drvr_priv->proto_sem); return 1; } return 0; } int brcmf_os_proto_unblock(struct brcmf_pub *drvr) { struct brcmf_info *drvr_priv = drvr->info; if (drvr_priv) { up(&drvr_priv->proto_sem); return 1; } return 0; } unsigned int brcmf_os_get_ioctl_resp_timeout(void) { return (unsigned int)brcmf_ioctl_timeout_msec; } void brcmf_os_set_ioctl_resp_timeout(unsigned int timeout_msec) { brcmf_ioctl_timeout_msec = (int)timeout_msec; } int brcmf_os_ioctl_resp_wait(struct brcmf_pub *drvr, uint *condition, bool *pending) { struct brcmf_info *drvr_priv = drvr->info; DECLARE_WAITQUEUE(wait, current); int timeout = brcmf_ioctl_timeout_msec; /* Convert timeout in millsecond to jiffies */ timeout = timeout * HZ / 1000; /* Wait until control frame is available */ add_wait_queue(&drvr_priv->ioctl_resp_wait, &wait); set_current_state(TASK_INTERRUPTIBLE); while (!(*condition) && (!signal_pending(current) && timeout)) timeout = schedule_timeout(timeout); if (signal_pending(current)) *pending = true; set_current_state(TASK_RUNNING); remove_wait_queue(&drvr_priv->ioctl_resp_wait, &wait); return timeout; } int brcmf_os_ioctl_resp_wake(struct brcmf_pub *drvr) { struct brcmf_info *drvr_priv = drvr->info; if (waitqueue_active(&drvr_priv->ioctl_resp_wait)) wake_up_interruptible(&drvr_priv->ioctl_resp_wait); return 0; } static int brcmf_host_event(struct brcmf_info *drvr_priv, int *ifidx, void *pktdata, struct brcmf_event_msg *event, void **data) { int bcmerror = 0; bcmerror = brcmf_c_host_event(drvr_priv, ifidx, pktdata, event, data); if (bcmerror != 0) return bcmerror; if (drvr_priv->iflist[*ifidx]->net) brcmf_cfg80211_event(drvr_priv->iflist[*ifidx]->net, event, *data); return bcmerror; } int brcmf_netdev_reset(struct net_device *dev, u8 flag) { struct brcmf_info *drvr_priv = *(struct brcmf_info **)netdev_priv(dev); brcmf_bus_devreset(&drvr_priv->pub, flag); return 1; } static int brcmf_get_pend_8021x_cnt(struct brcmf_info *drvr_priv) { return atomic_read(&drvr_priv->pend_8021x_cnt); } #define MAX_WAIT_FOR_8021X_TX 10 int brcmf_netdev_wait_pend8021x(struct net_device *dev) { struct brcmf_info *drvr_priv = *(struct brcmf_info **)netdev_priv(dev); int timeout = 10 * HZ / 1000; int ntimes = MAX_WAIT_FOR_8021X_TX; int pend = brcmf_get_pend_8021x_cnt(drvr_priv); while (ntimes && pend) { if (pend) { set_current_state(TASK_INTERRUPTIBLE); schedule_timeout(timeout); set_current_state(TASK_RUNNING); ntimes--; } pend = brcmf_get_pend_8021x_cnt(drvr_priv); } return pend; } #ifdef BCMDBG int brcmf_write_to_file(struct brcmf_pub *drvr, u8 *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) { BRCMF_ERROR(("%s: open file error\n", __func__)); ret = -1; goto exit; } /* Write buf to file */ fp->f_op->write(fp, buf, size, &pos); exit: /* free buf before return */ kfree(buf); /* close file before return */ if (fp) filp_close(fp, current->files); /* restore previous address limit */ set_fs(old_fs); return ret; } #endif /* BCMDBG */