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path: root/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
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Diffstat (limited to 'drivers/net/wireless/brcm80211/brcmfmac/p2p.c')
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/p2p.c74
1 files changed, 54 insertions, 20 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
index e7a1a4770996..79555f006d53 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
@@ -47,6 +47,7 @@
#define IS_P2P_SOCIAL_CHANNEL(channel) ((channel == SOCIAL_CHAN_1) || \
(channel == SOCIAL_CHAN_2) || \
(channel == SOCIAL_CHAN_3))
+#define BRCMF_P2P_TEMP_CHAN SOCIAL_CHAN_3
#define SOCIAL_CHAN_CNT 3
#define AF_PEER_SEARCH_CNT 2
@@ -1954,21 +1955,21 @@ s32 brcmf_p2p_attach(struct brcmf_cfg80211_info *cfg)
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);
+ brcmf_free_vif(cfg, 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);
+ brcmf_free_vif(cfg, 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);
+ brcmf_free_vif(cfg, p2p_vif);
goto exit;
}
@@ -1996,7 +1997,7 @@ void brcmf_p2p_detach(struct brcmf_p2p_info *p2p)
brcmf_p2p_cancel_remain_on_channel(vif->ifp);
brcmf_p2p_deinit_discovery(p2p);
/* remove discovery interface */
- brcmf_free_vif(vif);
+ brcmf_free_vif(p2p->cfg, vif);
p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif = NULL;
}
/* just set it all to zero */
@@ -2013,17 +2014,30 @@ static void brcmf_p2p_get_current_chanspec(struct brcmf_p2p_info *p2p,
u16 *chanspec)
{
struct brcmf_if *ifp;
- struct brcmf_fil_chan_info_le ci;
+ u8 mac_addr[ETH_ALEN];
struct brcmu_chan ch;
- s32 err;
+ struct brcmf_bss_info_le *bi;
+ u8 *buf;
ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
- ch.chnum = 11;
-
- err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_CHANNEL, &ci, sizeof(ci));
- if (!err)
- ch.chnum = le32_to_cpu(ci.hw_channel);
+ if (brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSSID, mac_addr,
+ ETH_ALEN) == 0) {
+ buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
+ if (buf != NULL) {
+ *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
+ if (brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
+ buf, WL_BSS_INFO_MAX) == 0) {
+ bi = (struct brcmf_bss_info_le *)(buf + 4);
+ *chanspec = le16_to_cpu(bi->chanspec);
+ kfree(buf);
+ return;
+ }
+ kfree(buf);
+ }
+ }
+ /* Use default channel for P2P */
+ ch.chnum = BRCMF_P2P_TEMP_CHAN;
ch.bw = BRCMU_CHAN_BW_20;
p2p->cfg->d11inf.encchspec(&ch);
*chanspec = ch.chspec;
@@ -2208,7 +2222,7 @@ static struct wireless_dev *brcmf_p2p_create_p2pdev(struct brcmf_p2p_info *p2p,
return &p2p_vif->wdev;
fail:
- brcmf_free_vif(p2p_vif);
+ brcmf_free_vif(p2p->cfg, p2p_vif);
return ERR_PTR(err);
}
@@ -2217,13 +2231,31 @@ fail:
*
* @vif: virtual interface object to delete.
*/
-static void brcmf_p2p_delete_p2pdev(struct brcmf_cfg80211_vif *vif)
+static void brcmf_p2p_delete_p2pdev(struct brcmf_cfg80211_info *cfg,
+ struct brcmf_cfg80211_vif *vif)
{
- struct brcmf_p2p_info *p2p = &vif->ifp->drvr->config->p2p;
-
cfg80211_unregister_wdev(&vif->wdev);
- p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif = NULL;
- brcmf_free_vif(vif);
+ cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif = NULL;
+ brcmf_free_vif(cfg, vif);
+}
+
+/**
+ * brcmf_p2p_free_p2p_if() - free up net device related data.
+ *
+ * @ndev: net device that needs to be freed.
+ */
+static void brcmf_p2p_free_p2p_if(struct net_device *ndev)
+{
+ struct brcmf_cfg80211_info *cfg;
+ struct brcmf_cfg80211_vif *vif;
+ struct brcmf_if *ifp;
+
+ ifp = netdev_priv(ndev);
+ cfg = ifp->drvr->config;
+ vif = ifp->vif;
+
+ brcmf_free_vif(cfg, vif);
+ free_netdev(ifp->ndev);
}
/**
@@ -2303,6 +2335,9 @@ struct wireless_dev *brcmf_p2p_add_vif(struct wiphy *wiphy, const char *name,
brcmf_err("Registering netdevice failed\n");
goto fail;
}
+ /* override destructor */
+ ifp->ndev->destructor = brcmf_p2p_free_p2p_if;
+
cfg->p2p.bss_idx[P2PAPI_BSSCFG_CONNECTION].vif = vif;
/* Disable firmware roaming for P2P interface */
brcmf_fil_iovar_int_set(ifp, "roam_off", 1);
@@ -2314,7 +2349,7 @@ struct wireless_dev *brcmf_p2p_add_vif(struct wiphy *wiphy, const char *name,
return &ifp->vif->wdev;
fail:
- brcmf_free_vif(vif);
+ brcmf_free_vif(cfg, vif);
return ERR_PTR(err);
}
@@ -2350,7 +2385,7 @@ int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev)
break;
case NL80211_IFTYPE_P2P_DEVICE:
- brcmf_p2p_delete_p2pdev(vif);
+ brcmf_p2p_delete_p2pdev(cfg, vif);
return 0;
default:
return -ENOTSUPP;
@@ -2378,7 +2413,6 @@ int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev)
err = 0;
}
brcmf_cfg80211_arm_vif_event(cfg, NULL);
- brcmf_free_vif(vif);
p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif = NULL;
return err;