diff options
Diffstat (limited to 'drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c')
| -rw-r--r-- | drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c | 1550 |
1 files changed, 1550 insertions, 0 deletions
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c new file mode 100644 index 000000000..175272c26 --- /dev/null +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c @@ -0,0 +1,1550 @@ +// SPDX-License-Identifier: ISC +/* + * Copyright (c) 2010 Broadcom Corporation + */ + +#include <linux/kernel.h> +#include <linux/etherdevice.h> +#include <linux/module.h> +#include <linux/inetdevice.h> +#include <linux/property.h> +#include <net/cfg80211.h> +#include <net/rtnetlink.h> +#include <net/addrconf.h> +#include <net/ieee80211_radiotap.h> +#include <net/ipv6.h> +#include <brcmu_utils.h> +#include <brcmu_wifi.h> + +#include "core.h" +#include "bus.h" +#include "debug.h" +#include "fwil_types.h" +#include "p2p.h" +#include "pno.h" +#include "cfg80211.h" +#include "fwil.h" +#include "feature.h" +#include "proto.h" +#include "pcie.h" +#include "common.h" + +#define MAX_WAIT_FOR_8021X_TX msecs_to_jiffies(950) + +#define BRCMF_BSSIDX_INVALID -1 + +#define RXS_PBPRES BIT(2) + +#define D11_PHY_HDR_LEN 6 + +struct d11rxhdr_le { + __le16 RxFrameSize; + u16 PAD; + __le16 PhyRxStatus_0; + __le16 PhyRxStatus_1; + __le16 PhyRxStatus_2; + __le16 PhyRxStatus_3; + __le16 PhyRxStatus_4; + __le16 PhyRxStatus_5; + __le16 RxStatus1; + __le16 RxStatus2; + __le16 RxTSFTime; + __le16 RxChan; + u8 unknown[12]; +} __packed; + +struct wlc_d11rxhdr { + struct d11rxhdr_le rxhdr; + __le32 tsf_l; + s8 rssi; + s8 rxpwr0; + s8 rxpwr1; + s8 do_rssi_ma; + s8 rxpwr[4]; +} __packed; + +char *brcmf_ifname(struct brcmf_if *ifp) +{ + if (!ifp) + return "<if_null>"; + + if (ifp->ndev) + return ifp->ndev->name; + + return "<if_none>"; +} + +struct brcmf_if *brcmf_get_ifp(struct brcmf_pub *drvr, int ifidx) +{ + struct brcmf_if *ifp; + s32 bsscfgidx; + + if (ifidx < 0 || ifidx >= BRCMF_MAX_IFS) { + bphy_err(drvr, "ifidx %d out of range\n", ifidx); + return NULL; + } + + ifp = NULL; + bsscfgidx = drvr->if2bss[ifidx]; + if (bsscfgidx >= 0) + ifp = drvr->iflist[bsscfgidx]; + + return ifp; +} + +void brcmf_configure_arp_nd_offload(struct brcmf_if *ifp, bool enable) +{ + s32 err; + u32 mode; + + if (enable) + mode = BRCMF_ARP_OL_AGENT | BRCMF_ARP_OL_PEER_AUTO_REPLY; + else + mode = 0; + + /* Try to set and enable ARP offload feature, this may fail, then it */ + /* is simply not supported and err 0 will be returned */ + err = brcmf_fil_iovar_int_set(ifp, "arp_ol", mode); + if (err) { + brcmf_dbg(TRACE, "failed to set ARP offload mode to 0x%x, err = %d\n", + mode, err); + } else { + err = brcmf_fil_iovar_int_set(ifp, "arpoe", enable); + if (err) { + brcmf_dbg(TRACE, "failed to configure (%d) ARP offload err = %d\n", + enable, err); + } else { + brcmf_dbg(TRACE, "successfully configured (%d) ARP offload to 0x%x\n", + enable, mode); + } + } + + err = brcmf_fil_iovar_int_set(ifp, "ndoe", enable); + if (err) { + brcmf_dbg(TRACE, "failed to configure (%d) ND offload err = %d\n", + enable, err); + } else { + brcmf_dbg(TRACE, "successfully configured (%d) ND offload to 0x%x\n", + enable, mode); + } +} + +static void _brcmf_set_multicast_list(struct work_struct *work) +{ + struct brcmf_if *ifp = container_of(work, struct brcmf_if, + multicast_work); + struct brcmf_pub *drvr = ifp->drvr; + struct net_device *ndev; + struct netdev_hw_addr *ha; + u32 cmd_value, cnt; + __le32 cnt_le; + char *buf, *bufp; + u32 buflen; + s32 err; + + brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx); + + ndev = ifp->ndev; + + /* Determine initial value of allmulti flag */ + cmd_value = (ndev->flags & IFF_ALLMULTI) ? true : false; + + /* Send down the multicast list first. */ + cnt = netdev_mc_count(ndev); + buflen = sizeof(cnt) + (cnt * ETH_ALEN); + buf = kmalloc(buflen, GFP_KERNEL); + if (!buf) + return; + bufp = buf; + + cnt_le = cpu_to_le32(cnt); + memcpy(bufp, &cnt_le, sizeof(cnt_le)); + bufp += sizeof(cnt_le); + + netdev_for_each_mc_addr(ha, ndev) { + if (!cnt) + break; + memcpy(bufp, ha->addr, ETH_ALEN); + bufp += ETH_ALEN; + cnt--; + } + + err = brcmf_fil_iovar_data_set(ifp, "mcast_list", buf, buflen); + if (err < 0) { + bphy_err(drvr, "Setting mcast_list failed, %d\n", err); + cmd_value = cnt ? true : cmd_value; + } + + 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... + */ + err = brcmf_fil_iovar_int_set(ifp, "allmulti", cmd_value); + if (err < 0) + bphy_err(drvr, "Setting allmulti failed, %d\n", err); + + /*Finally, pick up the PROMISC flag */ + cmd_value = (ndev->flags & IFF_PROMISC) ? true : false; + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PROMISC, cmd_value); + if (err < 0) { + /* PROMISC unsupported by firmware of older chips */ + if (err == -EBADE) + bphy_info_once(drvr, "BRCMF_C_SET_PROMISC unsupported\n"); + else + bphy_err(drvr, "Setting BRCMF_C_SET_PROMISC failed, err=%d\n", + err); + } + brcmf_configure_arp_nd_offload(ifp, !cmd_value); +} + +#if IS_ENABLED(CONFIG_IPV6) +static void _brcmf_update_ndtable(struct work_struct *work) +{ + struct brcmf_if *ifp = container_of(work, struct brcmf_if, + ndoffload_work); + struct brcmf_pub *drvr = ifp->drvr; + int i, ret; + + /* clear the table in firmware */ + ret = brcmf_fil_iovar_data_set(ifp, "nd_hostip_clear", NULL, 0); + if (ret) { + brcmf_dbg(TRACE, "fail to clear nd ip table err:%d\n", ret); + return; + } + + for (i = 0; i < ifp->ipv6addr_idx; i++) { + ret = brcmf_fil_iovar_data_set(ifp, "nd_hostip", + &ifp->ipv6_addr_tbl[i], + sizeof(struct in6_addr)); + if (ret) + bphy_err(drvr, "add nd ip err %d\n", ret); + } +} +#else +static void _brcmf_update_ndtable(struct work_struct *work) +{ +} +#endif + +static int brcmf_netdev_set_mac_address(struct net_device *ndev, void *addr) +{ + struct brcmf_if *ifp = netdev_priv(ndev); + struct sockaddr *sa = (struct sockaddr *)addr; + int err; + + brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx); + + err = brcmf_c_set_cur_etheraddr(ifp, sa->sa_data); + if (err >= 0) { + brcmf_dbg(TRACE, "updated to %pM\n", sa->sa_data); + memcpy(ifp->mac_addr, sa->sa_data, ETH_ALEN); + eth_hw_addr_set(ifp->ndev, ifp->mac_addr); + } + return err; +} + +static void brcmf_netdev_set_multicast_list(struct net_device *ndev) +{ + struct brcmf_if *ifp = netdev_priv(ndev); + + schedule_work(&ifp->multicast_work); +} + +/** + * brcmf_skb_is_iapp - checks if skb is an IAPP packet + * + * @skb: skb to check + */ +static bool brcmf_skb_is_iapp(struct sk_buff *skb) +{ + static const u8 iapp_l2_update_packet[6] __aligned(2) = { + 0x00, 0x01, 0xaf, 0x81, 0x01, 0x00, + }; + unsigned char *eth_data; +#if !defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) + const u16 *a, *b; +#endif + + if (skb->len - skb->mac_len != 6 || + !is_multicast_ether_addr(eth_hdr(skb)->h_dest)) + return false; + + eth_data = skb_mac_header(skb) + ETH_HLEN; +#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) + return !(((*(const u32 *)eth_data) ^ (*(const u32 *)iapp_l2_update_packet)) | + ((*(const u16 *)(eth_data + 4)) ^ (*(const u16 *)(iapp_l2_update_packet + 4)))); +#else + a = (const u16 *)eth_data; + b = (const u16 *)iapp_l2_update_packet; + + return !((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2])); +#endif +} + +static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb, + struct net_device *ndev) +{ + int ret; + struct brcmf_if *ifp = netdev_priv(ndev); + struct brcmf_pub *drvr = ifp->drvr; + struct ethhdr *eh; + int head_delta; + unsigned int tx_bytes = skb->len; + + brcmf_dbg(DATA, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx); + + /* Can the device send data? */ + if (drvr->bus_if->state != BRCMF_BUS_UP) { + bphy_err(drvr, "xmit rejected state=%d\n", drvr->bus_if->state); + netif_stop_queue(ndev); + dev_kfree_skb(skb); + ret = -ENODEV; + goto done; + } + + /* Some recent Broadcom's firmwares disassociate STA when they receive + * an 802.11f ADD frame. This behavior can lead to a local DoS security + * issue. Attacker may trigger disassociation of any STA by sending a + * proper Ethernet frame to the wireless interface. + * + * Moreover this feature may break AP interfaces in some specific + * setups. This applies e.g. to the bridge with hairpin mode enabled and + * IFLA_BRPORT_MCAST_TO_UCAST set. IAPP packet generated by a firmware + * will get passed back to the wireless interface and cause immediate + * disassociation of a just-connected STA. + */ + if (!drvr->settings->iapp && brcmf_skb_is_iapp(skb)) { + dev_kfree_skb(skb); + ret = -EINVAL; + goto done; + } + + /* Make sure there's enough writeable headroom */ + if (skb_headroom(skb) < drvr->hdrlen || skb_header_cloned(skb)) { + head_delta = max_t(int, drvr->hdrlen - skb_headroom(skb), 0); + + brcmf_dbg(INFO, "%s: insufficient headroom (%d)\n", + brcmf_ifname(ifp), head_delta); + atomic_inc(&drvr->bus_if->stats.pktcowed); + ret = pskb_expand_head(skb, ALIGN(head_delta, NET_SKB_PAD), 0, + GFP_ATOMIC); + if (ret < 0) { + bphy_err(drvr, "%s: failed to expand headroom\n", + brcmf_ifname(ifp)); + atomic_inc(&drvr->bus_if->stats.pktcow_failed); + dev_kfree_skb(skb); + goto done; + } + } + + /* validate length for ether packet */ + if (skb->len < sizeof(*eh)) { + ret = -EINVAL; + dev_kfree_skb(skb); + goto done; + } + + eh = (struct ethhdr *)(skb->data); + + if (eh->h_proto == htons(ETH_P_PAE)) + atomic_inc(&ifp->pend_8021x_cnt); + + /* determine the priority */ + if ((skb->priority == 0) || (skb->priority > 7)) + skb->priority = cfg80211_classify8021d(skb, NULL); + + /* set pacing shift for packet aggregation */ + sk_pacing_shift_update(skb->sk, 8); + + ret = brcmf_proto_tx_queue_data(drvr, ifp->ifidx, skb); + if (ret < 0) + brcmf_txfinalize(ifp, skb, false); + +done: + if (ret) { + ndev->stats.tx_dropped++; + } else { + ndev->stats.tx_packets++; + ndev->stats.tx_bytes += tx_bytes; + } + + /* Return ok: we always eat the packet */ + return NETDEV_TX_OK; +} + +void brcmf_txflowblock_if(struct brcmf_if *ifp, + enum brcmf_netif_stop_reason reason, bool state) +{ + unsigned long flags; + + if (!ifp || !ifp->ndev) + return; + + brcmf_dbg(TRACE, "enter: bsscfgidx=%d stop=0x%X reason=%d state=%d\n", + ifp->bsscfgidx, ifp->netif_stop, reason, state); + + spin_lock_irqsave(&ifp->netif_stop_lock, flags); + if (state) { + if (!ifp->netif_stop) + netif_stop_queue(ifp->ndev); + ifp->netif_stop |= reason; + } else { + ifp->netif_stop &= ~reason; + if (!ifp->netif_stop) + netif_wake_queue(ifp->ndev); + } + spin_unlock_irqrestore(&ifp->netif_stop_lock, flags); +} + +void brcmf_netif_rx(struct brcmf_if *ifp, struct sk_buff *skb) +{ + /* Most of Broadcom's firmwares send 802.11f ADD frame every time a new + * STA connects to the AP interface. This is an obsoleted standard most + * users don't use, so don't pass these frames up unless requested. + */ + if (!ifp->drvr->settings->iapp && brcmf_skb_is_iapp(skb)) { + brcmu_pkt_buf_free_skb(skb); + return; + } + + if (skb->pkt_type == PACKET_MULTICAST) + ifp->ndev->stats.multicast++; + + if (!(ifp->ndev->flags & IFF_UP)) { + brcmu_pkt_buf_free_skb(skb); + return; + } + + ifp->ndev->stats.rx_bytes += skb->len; + ifp->ndev->stats.rx_packets++; + + brcmf_dbg(DATA, "rx proto=0x%X\n", ntohs(skb->protocol)); + netif_rx(skb); +} + +void brcmf_netif_mon_rx(struct brcmf_if *ifp, struct sk_buff *skb) +{ + if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MONITOR_FMT_RADIOTAP)) { + /* Do nothing */ + } else if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MONITOR_FMT_HW_RX_HDR)) { + struct wlc_d11rxhdr *wlc_rxhdr = (struct wlc_d11rxhdr *)skb->data; + struct ieee80211_radiotap_header *radiotap; + unsigned int offset; + u16 RxStatus1; + + RxStatus1 = le16_to_cpu(wlc_rxhdr->rxhdr.RxStatus1); + + offset = sizeof(struct wlc_d11rxhdr); + /* MAC inserts 2 pad bytes for a4 headers or QoS or A-MSDU + * subframes + */ + if (RxStatus1 & RXS_PBPRES) + offset += 2; + offset += D11_PHY_HDR_LEN; + + skb_pull(skb, offset); + + /* TODO: use RX header to fill some radiotap data */ + radiotap = skb_push(skb, sizeof(*radiotap)); + memset(radiotap, 0, sizeof(*radiotap)); + radiotap->it_len = cpu_to_le16(sizeof(*radiotap)); + + /* TODO: 4 bytes with receive status? */ + skb->len -= 4; + } else { + struct ieee80211_radiotap_header *radiotap; + + /* TODO: use RX status to fill some radiotap data */ + radiotap = skb_push(skb, sizeof(*radiotap)); + memset(radiotap, 0, sizeof(*radiotap)); + radiotap->it_len = cpu_to_le16(sizeof(*radiotap)); + + /* TODO: 4 bytes with receive status? */ + skb->len -= 4; + } + + skb->dev = ifp->ndev; + skb_reset_mac_header(skb); + skb->pkt_type = PACKET_OTHERHOST; + skb->protocol = htons(ETH_P_802_2); + + brcmf_netif_rx(ifp, skb); +} + +static int brcmf_rx_hdrpull(struct brcmf_pub *drvr, struct sk_buff *skb, + struct brcmf_if **ifp) +{ + int ret; + + /* process and remove protocol-specific header */ + ret = brcmf_proto_hdrpull(drvr, true, skb, ifp); + + if (ret || !(*ifp) || !(*ifp)->ndev) { + if (ret != -ENODATA && *ifp && (*ifp)->ndev) + (*ifp)->ndev->stats.rx_errors++; + brcmu_pkt_buf_free_skb(skb); + return -ENODATA; + } + + skb->protocol = eth_type_trans(skb, (*ifp)->ndev); + return 0; +} + +void brcmf_rx_frame(struct device *dev, struct sk_buff *skb, bool handle_event, + bool inirq) +{ + struct brcmf_if *ifp; + struct brcmf_bus *bus_if = dev_get_drvdata(dev); + struct brcmf_pub *drvr = bus_if->drvr; + + brcmf_dbg(DATA, "Enter: %s: rxp=%p\n", dev_name(dev), skb); + + if (brcmf_rx_hdrpull(drvr, skb, &ifp)) + return; + + if (brcmf_proto_is_reorder_skb(skb)) { + brcmf_proto_rxreorder(ifp, skb); + } else { + /* Process special event packets */ + if (handle_event) { + gfp_t gfp = inirq ? GFP_ATOMIC : GFP_KERNEL; + + brcmf_fweh_process_skb(ifp->drvr, skb, + BCMILCP_SUBTYPE_VENDOR_LONG, gfp); + } + brcmf_netif_rx(ifp, skb); + } +} + +void brcmf_rx_event(struct device *dev, struct sk_buff *skb) +{ + struct brcmf_if *ifp; + struct brcmf_bus *bus_if = dev_get_drvdata(dev); + struct brcmf_pub *drvr = bus_if->drvr; + + brcmf_dbg(EVENT, "Enter: %s: rxp=%p\n", dev_name(dev), skb); + + if (brcmf_rx_hdrpull(drvr, skb, &ifp)) + return; + + brcmf_fweh_process_skb(ifp->drvr, skb, 0, GFP_KERNEL); + brcmu_pkt_buf_free_skb(skb); +} + +void brcmf_txfinalize(struct brcmf_if *ifp, struct sk_buff *txp, bool success) +{ + struct ethhdr *eh; + u16 type; + + eh = (struct ethhdr *)(txp->data); + type = ntohs(eh->h_proto); + + if (type == ETH_P_PAE) { + atomic_dec(&ifp->pend_8021x_cnt); + if (waitqueue_active(&ifp->pend_8021x_wait)) + wake_up(&ifp->pend_8021x_wait); + } + + if (!success) + ifp->ndev->stats.tx_errors++; + + brcmu_pkt_buf_free_skb(txp); +} + +static void brcmf_ethtool_get_drvinfo(struct net_device *ndev, + struct ethtool_drvinfo *info) +{ + struct brcmf_if *ifp = netdev_priv(ndev); + struct brcmf_pub *drvr = ifp->drvr; + char drev[BRCMU_DOTREV_LEN] = "n/a"; + + if (drvr->revinfo.result == 0) + brcmu_dotrev_str(drvr->revinfo.driverrev, drev); + strscpy(info->driver, KBUILD_MODNAME, sizeof(info->driver)); + strscpy(info->version, drev, sizeof(info->version)); + strscpy(info->fw_version, drvr->fwver, sizeof(info->fw_version)); + strscpy(info->bus_info, dev_name(drvr->bus_if->dev), + sizeof(info->bus_info)); +} + +static const struct ethtool_ops brcmf_ethtool_ops = { + .get_drvinfo = brcmf_ethtool_get_drvinfo, +}; + +static int brcmf_netdev_stop(struct net_device *ndev) +{ + struct brcmf_if *ifp = netdev_priv(ndev); + + brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx); + + brcmf_cfg80211_down(ndev); + + brcmf_net_setcarrier(ifp, false); + + return 0; +} + +static int brcmf_netdev_open(struct net_device *ndev) +{ + struct brcmf_if *ifp = netdev_priv(ndev); + struct brcmf_pub *drvr = ifp->drvr; + struct brcmf_bus *bus_if = drvr->bus_if; + u32 toe_ol; + + brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx); + + /* If bus is not ready, can't continue */ + if (bus_if->state != BRCMF_BUS_UP) { + bphy_err(drvr, "failed bus is not ready\n"); + return -EAGAIN; + } + + atomic_set(&ifp->pend_8021x_cnt, 0); + + /* Get current TOE mode from dongle */ + if (brcmf_fil_iovar_int_get(ifp, "toe_ol", &toe_ol) >= 0 + && (toe_ol & TOE_TX_CSUM_OL) != 0) + ndev->features |= NETIF_F_IP_CSUM; + else + ndev->features &= ~NETIF_F_IP_CSUM; + + if (brcmf_cfg80211_up(ndev)) { + bphy_err(drvr, "failed to bring up cfg80211\n"); + return -EIO; + } + + /* Clear, carrier, set when connected or AP mode. */ + netif_carrier_off(ndev); + return 0; +} + +static const struct net_device_ops brcmf_netdev_ops_pri = { + .ndo_open = brcmf_netdev_open, + .ndo_stop = brcmf_netdev_stop, + .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_if *ifp, bool locked) +{ + struct brcmf_pub *drvr = ifp->drvr; + struct net_device *ndev; + s32 err; + + brcmf_dbg(TRACE, "Enter, bsscfgidx=%d mac=%pM\n", ifp->bsscfgidx, + ifp->mac_addr); + ndev = ifp->ndev; + + /* set appropriate operations */ + ndev->netdev_ops = &brcmf_netdev_ops_pri; + + ndev->needed_headroom += drvr->hdrlen; + ndev->ethtool_ops = &brcmf_ethtool_ops; + + /* set the mac address & netns */ + eth_hw_addr_set(ndev, ifp->mac_addr); + dev_net_set(ndev, wiphy_net(cfg_to_wiphy(drvr->config))); + + INIT_WORK(&ifp->multicast_work, _brcmf_set_multicast_list); + INIT_WORK(&ifp->ndoffload_work, _brcmf_update_ndtable); + + if (locked) + err = cfg80211_register_netdevice(ndev); + else + err = register_netdev(ndev); + if (err != 0) { + bphy_err(drvr, "couldn't register the net device\n"); + goto fail; + } + + netif_carrier_off(ndev); + + ndev->priv_destructor = brcmf_cfg80211_free_netdev; + brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name); + return 0; + +fail: + drvr->iflist[ifp->bsscfgidx] = NULL; + ndev->netdev_ops = NULL; + return -EBADE; +} + +void brcmf_net_detach(struct net_device *ndev, bool locked) +{ + if (ndev->reg_state == NETREG_REGISTERED) { + if (locked) + cfg80211_unregister_netdevice(ndev); + else + unregister_netdev(ndev); + } else { + brcmf_cfg80211_free_netdev(ndev); + free_netdev(ndev); + } +} + +static int brcmf_net_mon_open(struct net_device *ndev) +{ + struct brcmf_if *ifp = netdev_priv(ndev); + struct brcmf_pub *drvr = ifp->drvr; + u32 monitor; + int err; + + brcmf_dbg(TRACE, "Enter\n"); + + err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_MONITOR, &monitor); + if (err) { + bphy_err(drvr, "BRCMF_C_GET_MONITOR error (%d)\n", err); + return err; + } else if (monitor) { + bphy_err(drvr, "Monitor mode is already enabled\n"); + return -EEXIST; + } + + monitor = 3; + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_MONITOR, monitor); + if (err) + bphy_err(drvr, "BRCMF_C_SET_MONITOR error (%d)\n", err); + + return err; +} + +static int brcmf_net_mon_stop(struct net_device *ndev) +{ + struct brcmf_if *ifp = netdev_priv(ndev); + struct brcmf_pub *drvr = ifp->drvr; + u32 monitor; + int err; + + brcmf_dbg(TRACE, "Enter\n"); + + monitor = 0; + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_MONITOR, monitor); + if (err) + bphy_err(drvr, "BRCMF_C_SET_MONITOR error (%d)\n", err); + + return err; +} + +static netdev_tx_t brcmf_net_mon_start_xmit(struct sk_buff *skb, + struct net_device *ndev) +{ + dev_kfree_skb_any(skb); + + return NETDEV_TX_OK; +} + +static const struct net_device_ops brcmf_netdev_ops_mon = { + .ndo_open = brcmf_net_mon_open, + .ndo_stop = brcmf_net_mon_stop, + .ndo_start_xmit = brcmf_net_mon_start_xmit, +}; + +int brcmf_net_mon_attach(struct brcmf_if *ifp) +{ + struct brcmf_pub *drvr = ifp->drvr; + struct net_device *ndev; + int err; + + brcmf_dbg(TRACE, "Enter\n"); + + ndev = ifp->ndev; + ndev->netdev_ops = &brcmf_netdev_ops_mon; + + err = cfg80211_register_netdevice(ndev); + if (err) + bphy_err(drvr, "Failed to register %s device\n", ndev->name); + + return err; +} + +void brcmf_net_setcarrier(struct brcmf_if *ifp, bool on) +{ + struct net_device *ndev; + + brcmf_dbg(TRACE, "Enter, bsscfgidx=%d carrier=%d\n", ifp->bsscfgidx, + on); + + ndev = ifp->ndev; + brcmf_txflowblock_if(ifp, BRCMF_NETIF_STOP_REASON_DISCONNECTED, !on); + if (on) { + if (!netif_carrier_ok(ndev)) + netif_carrier_on(ndev); + + } else { + if (netif_carrier_ok(ndev)) + netif_carrier_off(ndev); + } +} + +static int brcmf_net_p2p_open(struct net_device *ndev) +{ + brcmf_dbg(TRACE, "Enter\n"); + + return brcmf_cfg80211_up(ndev); +} + +static int brcmf_net_p2p_stop(struct net_device *ndev) +{ + brcmf_dbg(TRACE, "Enter\n"); + + return brcmf_cfg80211_down(ndev); +} + +static netdev_tx_t brcmf_net_p2p_start_xmit(struct sk_buff *skb, + struct net_device *ndev) +{ + if (skb) + dev_kfree_skb_any(skb); + + return NETDEV_TX_OK; +} + +static const struct net_device_ops brcmf_netdev_ops_p2p = { + .ndo_open = brcmf_net_p2p_open, + .ndo_stop = brcmf_net_p2p_stop, + .ndo_start_xmit = brcmf_net_p2p_start_xmit +}; + +static int brcmf_net_p2p_attach(struct brcmf_if *ifp) +{ + struct brcmf_pub *drvr = ifp->drvr; + struct net_device *ndev; + + brcmf_dbg(TRACE, "Enter, bsscfgidx=%d mac=%pM\n", ifp->bsscfgidx, + ifp->mac_addr); + ndev = ifp->ndev; + + ndev->netdev_ops = &brcmf_netdev_ops_p2p; + + /* set the mac address */ + eth_hw_addr_set(ndev, ifp->mac_addr); + + if (register_netdev(ndev) != 0) { + bphy_err(drvr, "couldn't register the p2p net device\n"); + goto fail; + } + + brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name); + + return 0; + +fail: + ifp->drvr->iflist[ifp->bsscfgidx] = NULL; + ndev->netdev_ops = NULL; + return -EBADE; +} + +struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bsscfgidx, s32 ifidx, + bool is_p2pdev, const char *name, u8 *mac_addr) +{ + struct brcmf_if *ifp; + struct net_device *ndev; + + brcmf_dbg(TRACE, "Enter, bsscfgidx=%d, ifidx=%d\n", bsscfgidx, ifidx); + + ifp = drvr->iflist[bsscfgidx]; + /* + * Delete the existing interface before overwriting it + * in case we missed the BRCMF_E_IF_DEL event. + */ + if (ifp) { + if (ifidx) { + bphy_err(drvr, "ERROR: netdev:%s already exists\n", + ifp->ndev->name); + netif_stop_queue(ifp->ndev); + brcmf_net_detach(ifp->ndev, false); + drvr->iflist[bsscfgidx] = NULL; + } else { + brcmf_dbg(INFO, "netdev:%s ignore IF event\n", + ifp->ndev->name); + return ERR_PTR(-EINVAL); + } + } + + if (!drvr->settings->p2p_enable && is_p2pdev) { + /* this is P2P_DEVICE interface */ + brcmf_dbg(INFO, "allocate non-netdev interface\n"); + ifp = kzalloc(sizeof(*ifp), GFP_KERNEL); + if (!ifp) + return ERR_PTR(-ENOMEM); + } else { + brcmf_dbg(INFO, "allocate netdev interface\n"); + /* Allocate netdev, including space for private structure */ + ndev = alloc_netdev(sizeof(*ifp), is_p2pdev ? "p2p%d" : name, + NET_NAME_UNKNOWN, ether_setup); + if (!ndev) + return ERR_PTR(-ENOMEM); + + ndev->needs_free_netdev = true; + ifp = netdev_priv(ndev); + ifp->ndev = ndev; + /* store mapping ifidx to bsscfgidx */ + if (drvr->if2bss[ifidx] == BRCMF_BSSIDX_INVALID) + drvr->if2bss[ifidx] = bsscfgidx; + } + + ifp->drvr = drvr; + drvr->iflist[bsscfgidx] = ifp; + ifp->ifidx = ifidx; + ifp->bsscfgidx = bsscfgidx; + + init_waitqueue_head(&ifp->pend_8021x_wait); + spin_lock_init(&ifp->netif_stop_lock); + + if (mac_addr != NULL) + memcpy(ifp->mac_addr, mac_addr, ETH_ALEN); + + brcmf_dbg(TRACE, " ==== pid:%x, if:%s (%pM) created ===\n", + current->pid, name, ifp->mac_addr); + + return ifp; +} + +static void brcmf_del_if(struct brcmf_pub *drvr, s32 bsscfgidx, + bool locked) +{ + struct brcmf_if *ifp; + int ifidx; + + ifp = drvr->iflist[bsscfgidx]; + if (!ifp) { + bphy_err(drvr, "Null interface, bsscfgidx=%d\n", bsscfgidx); + return; + } + brcmf_dbg(TRACE, "Enter, bsscfgidx=%d, ifidx=%d\n", bsscfgidx, + ifp->ifidx); + ifidx = ifp->ifidx; + + if (ifp->ndev) { + if (bsscfgidx == 0) { + if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) { + rtnl_lock(); + brcmf_netdev_stop(ifp->ndev); + rtnl_unlock(); + } + } else { + netif_stop_queue(ifp->ndev); + } + + if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) { + cancel_work_sync(&ifp->multicast_work); + cancel_work_sync(&ifp->ndoffload_work); + } + brcmf_net_detach(ifp->ndev, locked); + } else { + /* Only p2p device interfaces which get dynamically created + * end up here. In this case the p2p module should be informed + * about the removal of the interface within the firmware. If + * not then p2p commands towards the firmware will cause some + * serious troublesome side effects. The p2p module will clean + * up the ifp if needed. + */ + brcmf_p2p_ifp_removed(ifp, locked); + kfree(ifp); + } + + drvr->iflist[bsscfgidx] = NULL; + if (drvr->if2bss[ifidx] == bsscfgidx) + drvr->if2bss[ifidx] = BRCMF_BSSIDX_INVALID; +} + +void brcmf_remove_interface(struct brcmf_if *ifp, bool locked) +{ + if (!ifp || WARN_ON(ifp->drvr->iflist[ifp->bsscfgidx] != ifp)) + return; + brcmf_dbg(TRACE, "Enter, bsscfgidx=%d, ifidx=%d\n", ifp->bsscfgidx, + ifp->ifidx); + brcmf_proto_del_if(ifp->drvr, ifp); + brcmf_del_if(ifp->drvr, ifp->bsscfgidx, locked); +} + +static int brcmf_psm_watchdog_notify(struct brcmf_if *ifp, + const struct brcmf_event_msg *evtmsg, + void *data) +{ + struct brcmf_pub *drvr = ifp->drvr; + int err; + + brcmf_dbg(TRACE, "enter: bsscfgidx=%d\n", ifp->bsscfgidx); + + bphy_err(drvr, "PSM's watchdog has fired!\n"); + + err = brcmf_debug_create_memdump(ifp->drvr->bus_if, data, + evtmsg->datalen); + if (err) + bphy_err(drvr, "Failed to get memory dump, %d\n", err); + + return err; +} + +#ifdef CONFIG_INET +#define ARPOL_MAX_ENTRIES 8 +static int brcmf_inetaddr_changed(struct notifier_block *nb, + unsigned long action, void *data) +{ + struct brcmf_pub *drvr = container_of(nb, struct brcmf_pub, + inetaddr_notifier); + struct in_ifaddr *ifa = data; + struct net_device *ndev = ifa->ifa_dev->dev; + struct brcmf_if *ifp; + int idx, i, ret; + u32 val; + __be32 addr_table[ARPOL_MAX_ENTRIES] = {0}; + + /* Find out if the notification is meant for us */ + for (idx = 0; idx < BRCMF_MAX_IFS; idx++) { + ifp = drvr->iflist[idx]; + if (ifp && ifp->ndev == ndev) + break; + if (idx == BRCMF_MAX_IFS - 1) + return NOTIFY_DONE; + } + + /* check if arp offload is supported */ + ret = brcmf_fil_iovar_int_get(ifp, "arpoe", &val); + if (ret) + return NOTIFY_OK; + + /* old version only support primary index */ + ret = brcmf_fil_iovar_int_get(ifp, "arp_version", &val); + if (ret) + val = 1; + if (val == 1) + ifp = drvr->iflist[0]; + + /* retrieve the table from firmware */ + ret = brcmf_fil_iovar_data_get(ifp, "arp_hostip", addr_table, + sizeof(addr_table)); + if (ret) { + bphy_err(drvr, "fail to get arp ip table err:%d\n", ret); + return NOTIFY_OK; + } + + for (i = 0; i < ARPOL_MAX_ENTRIES; i++) + if (ifa->ifa_address == addr_table[i]) + break; + + switch (action) { + case NETDEV_UP: + if (i == ARPOL_MAX_ENTRIES) { + brcmf_dbg(TRACE, "add %pI4 to arp table\n", + &ifa->ifa_address); + /* set it directly */ + ret = brcmf_fil_iovar_data_set(ifp, "arp_hostip", + &ifa->ifa_address, sizeof(ifa->ifa_address)); + if (ret) + bphy_err(drvr, "add arp ip err %d\n", ret); + } + break; + case NETDEV_DOWN: + if (i < ARPOL_MAX_ENTRIES) { + addr_table[i] = 0; + brcmf_dbg(TRACE, "remove %pI4 from arp table\n", + &ifa->ifa_address); + /* clear the table in firmware */ + ret = brcmf_fil_iovar_data_set(ifp, "arp_hostip_clear", + NULL, 0); + if (ret) { + bphy_err(drvr, "fail to clear arp ip table err:%d\n", + ret); + return NOTIFY_OK; + } + for (i = 0; i < ARPOL_MAX_ENTRIES; i++) { + if (addr_table[i] == 0) + continue; + ret = brcmf_fil_iovar_data_set(ifp, "arp_hostip", + &addr_table[i], + sizeof(addr_table[i])); + if (ret) + bphy_err(drvr, "add arp ip err %d\n", + ret); + } + } + break; + default: + break; + } + + return NOTIFY_OK; +} +#endif + +#if IS_ENABLED(CONFIG_IPV6) +static int brcmf_inet6addr_changed(struct notifier_block *nb, + unsigned long action, void *data) +{ + struct brcmf_pub *drvr = container_of(nb, struct brcmf_pub, + inet6addr_notifier); + struct inet6_ifaddr *ifa = data; + struct brcmf_if *ifp; + int i; + struct in6_addr *table; + + /* Only handle primary interface */ + ifp = drvr->iflist[0]; + if (!ifp) + return NOTIFY_DONE; + if (ifp->ndev != ifa->idev->dev) + return NOTIFY_DONE; + + table = ifp->ipv6_addr_tbl; + for (i = 0; i < NDOL_MAX_ENTRIES; i++) + if (ipv6_addr_equal(&ifa->addr, &table[i])) + break; + + switch (action) { + case NETDEV_UP: + if (i == NDOL_MAX_ENTRIES) { + if (ifp->ipv6addr_idx < NDOL_MAX_ENTRIES) { + table[ifp->ipv6addr_idx++] = ifa->addr; + } else { + for (i = 0; i < NDOL_MAX_ENTRIES - 1; i++) + table[i] = table[i + 1]; + table[NDOL_MAX_ENTRIES - 1] = ifa->addr; + } + } + break; + case NETDEV_DOWN: + if (i < NDOL_MAX_ENTRIES) { + for (; i < ifp->ipv6addr_idx - 1; i++) + table[i] = table[i + 1]; + memset(&table[i], 0, sizeof(table[i])); + ifp->ipv6addr_idx--; + } + break; + default: + break; + } + + schedule_work(&ifp->ndoffload_work); + + return NOTIFY_OK; +} +#endif + +static int brcmf_revinfo_read(struct seq_file *s, void *data) +{ + struct brcmf_bus *bus_if = dev_get_drvdata(s->private); + struct brcmf_rev_info *ri = &bus_if->drvr->revinfo; + char drev[BRCMU_DOTREV_LEN]; + char brev[BRCMU_BOARDREV_LEN]; + + seq_printf(s, "vendorid: 0x%04x\n", ri->vendorid); + seq_printf(s, "deviceid: 0x%04x\n", ri->deviceid); + seq_printf(s, "radiorev: %s\n", brcmu_dotrev_str(ri->radiorev, drev)); + seq_printf(s, "chip: %s\n", ri->chipname); + seq_printf(s, "chippkg: %u\n", ri->chippkg); + seq_printf(s, "corerev: %u\n", ri->corerev); + seq_printf(s, "boardid: 0x%04x\n", ri->boardid); + seq_printf(s, "boardvendor: 0x%04x\n", ri->boardvendor); + seq_printf(s, "boardrev: %s\n", brcmu_boardrev_str(ri->boardrev, brev)); + seq_printf(s, "driverrev: %s\n", brcmu_dotrev_str(ri->driverrev, drev)); + seq_printf(s, "ucoderev: %u\n", ri->ucoderev); + seq_printf(s, "bus: %u\n", ri->bus); + seq_printf(s, "phytype: %u\n", ri->phytype); + seq_printf(s, "phyrev: %u\n", ri->phyrev); + seq_printf(s, "anarev: %u\n", ri->anarev); + seq_printf(s, "nvramrev: %08x\n", ri->nvramrev); + + seq_printf(s, "clmver: %s\n", bus_if->drvr->clmver); + + return 0; +} + +static void brcmf_core_bus_reset(struct work_struct *work) +{ + struct brcmf_pub *drvr = container_of(work, struct brcmf_pub, + bus_reset); + + brcmf_bus_reset(drvr->bus_if); +} + +static ssize_t bus_reset_write(struct file *file, const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct brcmf_pub *drvr = file->private_data; + u8 value; + + if (kstrtou8_from_user(user_buf, count, 0, &value)) + return -EINVAL; + + if (value != 1) + return -EINVAL; + + schedule_work(&drvr->bus_reset); + + return count; +} + +static const struct file_operations bus_reset_fops = { + .open = simple_open, + .llseek = no_llseek, + .write = bus_reset_write, +}; + +static int brcmf_bus_started(struct brcmf_pub *drvr, struct cfg80211_ops *ops) +{ + int ret = -1; + struct brcmf_bus *bus_if = drvr->bus_if; + struct brcmf_if *ifp; + struct brcmf_if *p2p_ifp; + + brcmf_dbg(TRACE, "\n"); + + /* add primary networking interface */ + ifp = brcmf_add_if(drvr, 0, 0, false, "wlan%d", + is_valid_ether_addr(drvr->settings->mac) ? drvr->settings->mac : NULL); + if (IS_ERR(ifp)) + return PTR_ERR(ifp); + + p2p_ifp = NULL; + + /* signal bus ready */ + brcmf_bus_change_state(bus_if, BRCMF_BUS_UP); + + /* do bus specific preinit here */ + ret = brcmf_bus_preinit(bus_if); + if (ret < 0) + goto fail; + + /* Bus is ready, do any initialization */ + ret = brcmf_c_preinit_dcmds(ifp); + if (ret < 0) + goto fail; + + brcmf_feat_attach(drvr); + + ret = brcmf_proto_init_done(drvr); + if (ret < 0) + goto fail; + + brcmf_proto_add_if(drvr, ifp); + + drvr->config = brcmf_cfg80211_attach(drvr, ops, + drvr->settings->p2p_enable); + if (drvr->config == NULL) { + ret = -ENOMEM; + goto fail; + } + + ret = brcmf_net_attach(ifp, false); + + if ((!ret) && (drvr->settings->p2p_enable)) { + p2p_ifp = drvr->iflist[1]; + if (p2p_ifp) + ret = brcmf_net_p2p_attach(p2p_ifp); + } + + if (ret) + goto fail; + +#ifdef CONFIG_INET + drvr->inetaddr_notifier.notifier_call = brcmf_inetaddr_changed; + ret = register_inetaddr_notifier(&drvr->inetaddr_notifier); + if (ret) + goto fail; + +#if IS_ENABLED(CONFIG_IPV6) + drvr->inet6addr_notifier.notifier_call = brcmf_inet6addr_changed; + ret = register_inet6addr_notifier(&drvr->inet6addr_notifier); + if (ret) { + unregister_inetaddr_notifier(&drvr->inetaddr_notifier); + goto fail; + } +#endif +#endif /* CONFIG_INET */ + + INIT_WORK(&drvr->bus_reset, brcmf_core_bus_reset); + + /* populate debugfs */ + brcmf_debugfs_add_entry(drvr, "revinfo", brcmf_revinfo_read); + debugfs_create_file("reset", 0600, brcmf_debugfs_get_devdir(drvr), drvr, + &bus_reset_fops); + brcmf_feat_debugfs_create(drvr); + brcmf_proto_debugfs_create(drvr); + brcmf_bus_debugfs_create(bus_if); + + return 0; + +fail: + bphy_err(drvr, "failed: %d\n", ret); + if (drvr->config) { + brcmf_cfg80211_detach(drvr->config); + drvr->config = NULL; + } + brcmf_net_detach(ifp->ndev, false); + if (p2p_ifp) + brcmf_net_detach(p2p_ifp->ndev, false); + drvr->iflist[0] = NULL; + drvr->iflist[1] = NULL; + if (drvr->settings->ignore_probe_fail) + ret = 0; + + return ret; +} + +int brcmf_alloc(struct device *dev, struct brcmf_mp_device *settings) +{ + struct wiphy *wiphy; + struct cfg80211_ops *ops; + struct brcmf_pub *drvr = NULL; + + brcmf_dbg(TRACE, "Enter\n"); + + ops = brcmf_cfg80211_get_ops(settings); + if (!ops) + return -ENOMEM; + + wiphy = wiphy_new(ops, sizeof(*drvr)); + if (!wiphy) { + kfree(ops); + return -ENOMEM; + } + + set_wiphy_dev(wiphy, dev); + drvr = wiphy_priv(wiphy); + drvr->wiphy = wiphy; + drvr->ops = ops; + drvr->bus_if = dev_get_drvdata(dev); + drvr->bus_if->drvr = drvr; + drvr->settings = settings; + + return 0; +} + +int brcmf_attach(struct device *dev) +{ + struct brcmf_bus *bus_if = dev_get_drvdata(dev); + struct brcmf_pub *drvr = bus_if->drvr; + int ret = 0; + int i; + + brcmf_dbg(TRACE, "Enter\n"); + + for (i = 0; i < ARRAY_SIZE(drvr->if2bss); i++) + drvr->if2bss[i] = BRCMF_BSSIDX_INVALID; + + mutex_init(&drvr->proto_block); + + /* Link to bus module */ + drvr->hdrlen = 0; + + /* Attach and link in the protocol */ + ret = brcmf_proto_attach(drvr); + if (ret != 0) { + bphy_err(drvr, "brcmf_prot_attach failed\n"); + goto fail; + } + + /* Attach to events important for core code */ + brcmf_fweh_register(drvr, BRCMF_E_PSM_WATCHDOG, + brcmf_psm_watchdog_notify); + + /* attach firmware event handler */ + brcmf_fweh_attach(drvr); + + ret = brcmf_bus_started(drvr, drvr->ops); + if (ret != 0) { + bphy_err(drvr, "dongle is not responding: err=%d\n", ret); + goto fail; + } + + return 0; + +fail: + brcmf_detach(dev); + + return ret; +} + +void brcmf_bus_add_txhdrlen(struct device *dev, uint len) +{ + struct brcmf_bus *bus_if = dev_get_drvdata(dev); + struct brcmf_pub *drvr = bus_if->drvr; + + if (drvr) { + drvr->hdrlen += len; + } +} + +void brcmf_dev_reset(struct device *dev) +{ + struct brcmf_bus *bus_if = dev_get_drvdata(dev); + struct brcmf_pub *drvr = bus_if->drvr; + + if (drvr == NULL) + return; + + if (drvr->iflist[0]) + brcmf_fil_cmd_int_set(drvr->iflist[0], BRCMF_C_TERMINATED, 1); +} + +void brcmf_dev_coredump(struct device *dev) +{ + struct brcmf_bus *bus_if = dev_get_drvdata(dev); + + if (brcmf_debug_create_memdump(bus_if, NULL, 0) < 0) + brcmf_dbg(TRACE, "failed to create coredump\n"); +} + +void brcmf_fw_crashed(struct device *dev) +{ + struct brcmf_bus *bus_if = dev_get_drvdata(dev); + struct brcmf_pub *drvr = bus_if->drvr; + + bphy_err(drvr, "Firmware has halted or crashed\n"); + + brcmf_dev_coredump(dev); + + schedule_work(&drvr->bus_reset); +} + +void brcmf_detach(struct device *dev) +{ + s32 i; + struct brcmf_bus *bus_if = dev_get_drvdata(dev); + struct brcmf_pub *drvr = bus_if->drvr; + + brcmf_dbg(TRACE, "Enter\n"); + + if (drvr == NULL) + return; + +#ifdef CONFIG_INET + unregister_inetaddr_notifier(&drvr->inetaddr_notifier); +#endif + +#if IS_ENABLED(CONFIG_IPV6) + unregister_inet6addr_notifier(&drvr->inet6addr_notifier); +#endif + + brcmf_bus_change_state(bus_if, BRCMF_BUS_DOWN); + /* make sure primary interface removed last */ + for (i = BRCMF_MAX_IFS - 1; i > -1; i--) { + if (drvr->iflist[i]) + brcmf_remove_interface(drvr->iflist[i], false); + } + brcmf_bus_stop(drvr->bus_if); + + brcmf_fweh_detach(drvr); + brcmf_proto_detach(drvr); + + if (drvr->mon_if) { + brcmf_net_detach(drvr->mon_if->ndev, false); + drvr->mon_if = NULL; + } + + if (drvr->config) { + brcmf_p2p_detach(&drvr->config->p2p); + brcmf_cfg80211_detach(drvr->config); + drvr->config = NULL; + } +} + +void brcmf_free(struct device *dev) +{ + struct brcmf_bus *bus_if = dev_get_drvdata(dev); + struct brcmf_pub *drvr = bus_if->drvr; + + if (!drvr) + return; + + bus_if->drvr = NULL; + + kfree(drvr->ops); + + wiphy_free(drvr->wiphy); +} + +s32 brcmf_iovar_data_set(struct device *dev, char *name, void *data, u32 len) +{ + struct brcmf_bus *bus_if = dev_get_drvdata(dev); + struct brcmf_if *ifp = bus_if->drvr->iflist[0]; + + return brcmf_fil_iovar_data_set(ifp, name, data, len); +} + +static int brcmf_get_pend_8021x_cnt(struct brcmf_if *ifp) +{ + return atomic_read(&ifp->pend_8021x_cnt); +} + +int brcmf_netdev_wait_pend8021x(struct brcmf_if *ifp) +{ + struct brcmf_pub *drvr = ifp->drvr; + int err; + + err = wait_event_timeout(ifp->pend_8021x_wait, + !brcmf_get_pend_8021x_cnt(ifp), + MAX_WAIT_FOR_8021X_TX); + + if (!err) { + bphy_err(drvr, "Timed out waiting for no pending 802.1x packets\n"); + atomic_set(&ifp->pend_8021x_cnt, 0); + } + + return !err; +} + +void brcmf_bus_change_state(struct brcmf_bus *bus, enum brcmf_bus_state state) +{ + struct brcmf_pub *drvr = bus->drvr; + struct net_device *ndev; + int ifidx; + + brcmf_dbg(TRACE, "%d -> %d\n", bus->state, state); + + if (!drvr) { + brcmf_dbg(INFO, "ignoring transition, bus not attached yet\n"); + return; + } + + bus->state = state; + + if (state == BRCMF_BUS_UP) { + for (ifidx = 0; ifidx < BRCMF_MAX_IFS; ifidx++) { + if ((drvr->iflist[ifidx]) && + (drvr->iflist[ifidx]->ndev)) { + ndev = drvr->iflist[ifidx]->ndev; + if (netif_queue_stopped(ndev)) + netif_wake_queue(ndev); + } + } + } +} + +int __init brcmf_core_init(void) +{ + int err; + + err = brcmf_sdio_register(); + if (err) + return err; + + err = brcmf_usb_register(); + if (err) + goto error_usb_register; + + err = brcmf_pcie_register(); + if (err) + goto error_pcie_register; + return 0; + +error_pcie_register: + brcmf_usb_exit(); +error_usb_register: + brcmf_sdio_exit(); + return err; +} + +void __exit brcmf_core_exit(void) +{ + brcmf_sdio_exit(); + brcmf_usb_exit(); + brcmf_pcie_exit(); +} + |