From 2b76acdbc0431a7d9e87eacb27bb537a211bed16 Mon Sep 17 00:00:00 2001 From: Hante Meuleman Date: Thu, 8 Oct 2015 20:33:15 +0200 Subject: brcmfmac: Rework p2p attach, use single method for p2p dev creation. When module param p2pon is used a p2p device is created at init. This patch reworks how this is done by using the same method as for a dynamically (by user space) created p2p device. Reviewed-by: Arend Van Spriel Reviewed-by: Pieter-Paul Giesberts Reviewed-by: Franky (Zhenhui) Lin Signed-off-by: Hante Meuleman Signed-off-by: Arend van Spriel Signed-off-by: Kalle Valo --- drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c | 18 ++++++ drivers/net/wireless/brcm80211/brcmfmac/core.c | 33 ++++------ drivers/net/wireless/brcm80211/brcmfmac/fweh.c | 3 +- drivers/net/wireless/brcm80211/brcmfmac/p2p.c | 71 +++------------------- 4 files changed, 40 insertions(+), 85 deletions(-) (limited to 'drivers/net/wireless/brcm80211') diff --git a/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c index 891f4ed8c5e3..2ee57c0415e3 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c @@ -6238,6 +6238,17 @@ struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr, else *cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; } + /* p2p might require that "if-events" get processed by fweh. So + * activate the already registered event handlers now and activate + * the rest when initialization has completed. drvr->config needs to + * be assigned before activating events. + */ + drvr->config = cfg; + err = brcmf_fweh_activate_events(ifp); + if (err) { + brcmf_err("FWEH activation failed (%d)\n", err); + goto wiphy_unreg_out; + } err = brcmf_p2p_attach(cfg, p2pdev_forced); if (err) { @@ -6260,6 +6271,13 @@ struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr, brcmf_notify_tdls_peer_event); } + /* (re-) activate FWEH event handling */ + err = brcmf_fweh_activate_events(ifp); + if (err) { + brcmf_err("FWEH activation failed (%d)\n", err); + goto wiphy_unreg_out; + } + return cfg; wiphy_unreg_out: diff --git a/drivers/net/wireless/brcm80211/brcmfmac/core.c b/drivers/net/wireless/brcm80211/brcmfmac/core.c index a1d39b1966f7..d3212bf5b28f 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/core.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/core.c @@ -828,8 +828,8 @@ struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bssidx, s32 ifidx, } else { brcmf_dbg(INFO, "allocate netdev interface\n"); /* Allocate netdev, including space for private structure */ - ndev = alloc_netdev(sizeof(*ifp), name, NET_NAME_UNKNOWN, - ether_setup); + ndev = alloc_netdev(sizeof(*ifp), is_p2pdev ? "p2p%d" : name, + NET_NAME_UNKNOWN, ether_setup); if (!ndev) return ERR_PTR(-ENOMEM); @@ -1021,12 +1021,7 @@ int brcmf_bus_start(struct device *dev) if (IS_ERR(ifp)) return PTR_ERR(ifp); - if (brcmf_p2p_enable) - p2p_ifp = brcmf_add_if(drvr, 1, 0, false, "p2p%d", NULL); - else - p2p_ifp = NULL; - if (IS_ERR(p2p_ifp)) - p2p_ifp = NULL; + p2p_ifp = NULL; /* signal bus ready */ brcmf_bus_change_state(bus_if, BRCMF_BUS_UP); @@ -1060,11 +1055,13 @@ int brcmf_bus_start(struct device *dev) goto fail; } - ret = brcmf_fweh_activate_events(ifp); - if (ret < 0) - goto fail; - ret = brcmf_net_attach(ifp, false); + + if ((!ret) && (brcmf_p2p_enable)) { + p2p_ifp = drvr->iflist[1]; + if (p2p_ifp) + ret = brcmf_net_p2p_attach(p2p_ifp); + } fail: if (ret < 0) { brcmf_err("failed: %d\n", ret); @@ -1076,20 +1073,12 @@ fail: brcmf_fws_del_interface(ifp); brcmf_fws_deinit(drvr); } - if (drvr->iflist[0]) { + if (ifp) brcmf_net_detach(ifp->ndev); - drvr->iflist[0] = NULL; - } - if (p2p_ifp) { + if (p2p_ifp) brcmf_net_detach(p2p_ifp->ndev); - drvr->iflist[1] = NULL; - } return ret; } - if ((brcmf_p2p_enable) && (p2p_ifp)) - if (brcmf_net_p2p_attach(p2p_ifp) < 0) - brcmf_p2p_enable = 0; - return 0; } diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fweh.c b/drivers/net/wireless/brcm80211/brcmfmac/fweh.c index 383d6faf426b..3878b6f6cfce 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/fweh.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/fweh.c @@ -213,7 +213,8 @@ static void brcmf_fweh_handle_if_event(struct brcmf_pub *drvr, is_p2pdev, emsg->ifname, emsg->addr); if (IS_ERR(ifp)) return; - brcmf_fws_add_interface(ifp); + if (!is_p2pdev) + brcmf_fws_add_interface(ifp); if (!drvr->fweh.evt_handler[BRCMF_E_IF]) if (brcmf_net_attach(ifp, false) < 0) return; diff --git a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c index 37a8c352e077..d224b3dd72ed 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c @@ -2353,83 +2353,30 @@ void brcmf_p2p_stop_device(struct wiphy *wiphy, struct wireless_dev *wdev) * brcmf_p2p_attach() - attach for P2P. * * @cfg: driver private data for cfg80211 interface. + * @p2pdev_forced: create p2p device interface at attach. */ s32 brcmf_p2p_attach(struct brcmf_cfg80211_info *cfg, bool p2pdev_forced) { - struct brcmf_if *pri_ifp; - struct brcmf_if *p2p_ifp; - struct brcmf_cfg80211_vif *p2p_vif; struct brcmf_p2p_info *p2p; - struct brcmf_pub *drvr; - s32 bssidx; + struct brcmf_if *pri_ifp; s32 err = 0; + void *err_ptr; p2p = &cfg->p2p; p2p->cfg = cfg; - drvr = cfg->pub; - - pri_ifp = brcmf_get_ifp(drvr, 0); + pri_ifp = brcmf_get_ifp(cfg->pub, 0); p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif = pri_ifp->vif; if (p2pdev_forced) { - p2p_ifp = drvr->iflist[1]; + err_ptr = brcmf_p2p_create_p2pdev(p2p, NULL, NULL); + if (IS_ERR(err_ptr)) { + brcmf_err("P2P device creation failed.\n"); + err = PTR_ERR(err_ptr); + } } else { - p2p_ifp = NULL; p2p->p2pdev_dynamically = true; } - if (p2p_ifp) { - p2p_vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_P2P_DEVICE, - false); - if (IS_ERR(p2p_vif)) { - brcmf_err("could not create discovery vif\n"); - err = -ENOMEM; - goto exit; - } - - p2p_vif->ifp = p2p_ifp; - p2p_ifp->vif = p2p_vif; - p2p_vif->wdev.netdev = p2p_ifp->ndev; - p2p_ifp->ndev->ieee80211_ptr = &p2p_vif->wdev; - SET_NETDEV_DEV(p2p_ifp->ndev, wiphy_dev(cfg->wiphy)); - - p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif = p2p_vif; - - brcmf_p2p_generate_bss_mac(p2p, NULL); - memcpy(p2p_ifp->mac_addr, p2p->dev_addr, ETH_ALEN); - brcmf_p2p_set_firmware(pri_ifp, p2p->dev_addr); - - brcmf_fweh_p2pdev_setup(pri_ifp, true); - - /* Initialize P2P Discovery in the firmware */ - err = brcmf_fil_iovar_int_set(pri_ifp, "p2p_disc", 1); - if (err < 0) { - brcmf_err("set p2p_disc error\n"); - brcmf_free_vif(p2p_vif); - goto exit; - } - /* obtain bsscfg index for P2P discovery */ - err = brcmf_fil_iovar_int_get(pri_ifp, "p2p_dev", &bssidx); - if (err < 0) { - brcmf_err("retrieving discover bsscfg index failed\n"); - brcmf_free_vif(p2p_vif); - goto exit; - } - /* Verify that firmware uses same bssidx as driver !! */ - if (p2p_ifp->bssidx != bssidx) { - brcmf_err("Incorrect bssidx=%d, compared to p2p_ifp->bssidx=%d\n", - bssidx, p2p_ifp->bssidx); - brcmf_free_vif(p2p_vif); - goto exit; - } - - init_completion(&p2p->send_af_done); - INIT_WORK(&p2p->afx_hdl.afx_work, brcmf_p2p_afx_handler); - init_completion(&p2p->afx_hdl.act_frm_scan); - init_completion(&p2p->wait_next_af); -exit: - brcmf_fweh_p2pdev_setup(pri_ifp, false); - } return err; } -- cgit v1.2.3