brcmfmac: Update AP mode for GO creation.

With this update it is possible to create an P2P go. Handle the
p2p go role in creation and the update beacon from cfg80211. Also
store primary bss in global struct. Needed to map cfg device
back to primary device.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
index 3112265..c94d536 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
@@ -3625,9 +3625,37 @@
 }
 
 static s32
+brcmf_config_ap_mgmt_ie(struct brcmf_cfg80211_vif *vif,
+			struct cfg80211_beacon_data *beacon)
+{
+	s32 err;
+
+	/* Set Beacon IEs to FW */
+	err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_BEACON_FLAG,
+				    beacon->tail, beacon->tail_len);
+	if (err) {
+		brcmf_err("Set Beacon IE Failed\n");
+		return err;
+	}
+	brcmf_dbg(TRACE, "Applied Vndr IEs for Beacon\n");
+
+	/* Set Probe Response IEs to FW */
+	err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBRSP_FLAG,
+				    beacon->proberesp_ies,
+				    beacon->proberesp_ies_len);
+	if (err)
+		brcmf_err("Set Probe Resp IE Failed\n");
+	else
+		brcmf_dbg(TRACE, "Applied Vndr IEs for Probe Resp\n");
+
+	return err;
+}
+
+static s32
 brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
 			struct cfg80211_ap_settings *settings)
 {
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
 	s32 ie_offset;
 	struct brcmf_if *ifp = netdev_priv(ndev);
 	struct brcmf_tlv *ssid_ie;
@@ -3636,6 +3664,8 @@
 	struct brcmf_tlv *rsn_ie;
 	struct brcmf_vs_tlv *wpa_ie;
 	struct brcmf_join_params join_params;
+	enum nl80211_iftype dev_role;
+	struct brcmf_fil_bss_enable_le bss_enable;
 
 	brcmf_dbg(TRACE, "channel_type=%d, beacon_interval=%d, dtim_period=%d,\n",
 		  cfg80211_get_chandef_type(&settings->chandef),
@@ -3645,9 +3675,21 @@
 		  settings->ssid, settings->ssid_len, settings->auth_type,
 		  settings->inactivity_timeout);
 
-	if (!test_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state)) {
-		brcmf_err("Not in AP creation mode\n");
-		return -EPERM;
+	if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) {
+		brcmf_dbg(TRACE, "Role = AP\n");
+		dev_role = NL80211_IFTYPE_AP;
+		if (!test_bit(BRCMF_VIF_STATUS_AP_CREATING,
+			      &ifp->vif->sme_state)) {
+			brcmf_err("Not in AP creation mode\n");
+			return -EPERM;
+		}
+	} else {
+		brcmf_dbg(TRACE, "Role = P2P GO\n");
+		dev_role = NL80211_IFTYPE_P2P_GO;
+		if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif) {
+			ifp = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
+			ndev = ifp->ndev;
+		}
 	}
 
 	memset(&ssid_le, 0, sizeof(ssid_le));
@@ -3669,21 +3711,6 @@
 	}
 
 	brcmf_set_mpc(ndev, 0);
-	err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
-	if (err < 0) {
-		brcmf_err("BRCMF_C_DOWN error %d\n", err);
-		goto exit;
-	}
-	err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1);
-	if (err < 0) {
-		brcmf_err("SET INFRA error %d\n", err);
-		goto exit;
-	}
-	err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 1);
-	if (err < 0) {
-		brcmf_err("setting AP mode failed %d\n", err);
-		goto exit;
-	}
 
 	/* find the RSN_IE */
 	rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
@@ -3711,25 +3738,8 @@
 		brcmf_dbg(TRACE, "No WPA(2) IEs found\n");
 		brcmf_configure_opensecurity(ifp);
 	}
-	/* Set Beacon IEs to FW */
-	err = brcmf_vif_set_mgmt_ie(ndev_to_vif(ndev),
-				    BRCMF_VNDR_IE_BEACON_FLAG,
-				    settings->beacon.tail,
-				    settings->beacon.tail_len);
-	if (err)
-		brcmf_err("Set Beacon IE Failed\n");
-	else
-		brcmf_dbg(TRACE, "Applied Vndr IEs for Beacon\n");
 
-	/* Set Probe Response IEs to FW */
-	err = brcmf_vif_set_mgmt_ie(ndev_to_vif(ndev),
-				    BRCMF_VNDR_IE_PRBRSP_FLAG,
-				    settings->beacon.proberesp_ies,
-				    settings->beacon.proberesp_ies_len);
-	if (err)
-		brcmf_err("Set Probe Resp IE Failed\n");
-	else
-		brcmf_dbg(TRACE, "Applied Vndr IEs for Probe Resp\n");
+	brcmf_config_ap_mgmt_ie(ifp->vif, &settings->beacon);
 
 	if (settings->beacon_interval) {
 		err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD,
@@ -3747,23 +3757,62 @@
 			goto exit;
 		}
 	}
-	err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
-	if (err < 0) {
-		brcmf_err("BRCMF_C_UP error (%d)\n", err);
-		goto exit;
+
+	if (dev_role == NL80211_IFTYPE_AP) {
+		err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
+		if (err < 0) {
+			brcmf_err("BRCMF_C_DOWN error %d\n", err);
+			goto exit;
+		}
 		brcmf_fil_iovar_int_set(ifp, "apsta", 0);
 	}
 
-	memset(&join_params, 0, sizeof(join_params));
-	/* join parameters starts with ssid */
-	memcpy(&join_params.ssid_le, &ssid_le, sizeof(ssid_le));
-	/* create softap */
-	err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
-				     &join_params, sizeof(join_params));
+	err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1);
 	if (err < 0) {
-		brcmf_err("SET SSID error (%d)\n", err);
+		brcmf_err("SET INFRA error %d\n", err);
 		goto exit;
 	}
+	if (dev_role == NL80211_IFTYPE_AP) {
+		err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 1);
+		if (err < 0) {
+			brcmf_err("setting AP mode failed %d\n", err);
+			goto exit;
+		}
+		err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
+		if (err < 0) {
+			brcmf_err("BRCMF_C_UP error (%d)\n", err);
+			goto exit;
+		}
+
+		memset(&join_params, 0, sizeof(join_params));
+		/* join parameters starts with ssid */
+		memcpy(&join_params.ssid_le, &ssid_le, sizeof(ssid_le));
+		/* create softap */
+		err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
+					     &join_params, sizeof(join_params));
+		if (err < 0) {
+			brcmf_err("SET SSID error (%d)\n", err);
+			goto exit;
+		}
+		brcmf_dbg(TRACE, "AP mode configuration complete\n");
+	} else {
+		err = brcmf_fil_bsscfg_data_set(ifp, "ssid", &ssid_le,
+						sizeof(ssid_le));
+		if (err < 0) {
+			brcmf_err("setting ssid failed %d\n", err);
+			goto exit;
+		}
+		bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
+		bss_enable.enable = cpu_to_le32(1);
+		err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
+					       sizeof(bss_enable));
+		if (err < 0) {
+			brcmf_err("bss_enable config failed %d\n", err);
+			goto exit;
+		}
+
+		brcmf_dbg(TRACE, "GO mode configuration complete\n");
+	}
 	clear_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
 	set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
 
@@ -3802,10 +3851,41 @@
 	return err;
 }
 
+static s32
+brcmf_cfg80211_change_beacon(struct wiphy *wiphy, struct net_device *ndev,
+			     struct cfg80211_beacon_data *info)
+{
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
+	struct brcmf_if *ifp = netdev_priv(ndev);
+	s32 err;
+
+	brcmf_dbg(TRACE, "Enter\n");
+
+	if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) {
+		brcmf_dbg(TRACE, "Role = AP\n");
+		if (!test_bit(BRCMF_VIF_STATUS_AP_CREATED,
+			      &ifp->vif->sme_state)) {
+			brcmf_err("AP was not yet created\n");
+			return -EPERM;
+		}
+	} else {
+		brcmf_dbg(TRACE, "Role = P2P GO\n");
+		if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif) {
+			ifp = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
+			ndev = ifp->ndev;
+		}
+	}
+
+	err = brcmf_config_ap_mgmt_ie(ifp->vif, info);
+
+	return err;
+}
+
 static int
 brcmf_cfg80211_del_station(struct wiphy *wiphy, struct net_device *ndev,
 			   u8 *mac)
 {
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
 	struct brcmf_scb_val_le scbval;
 	struct brcmf_if *ifp = netdev_priv(ndev);
 	s32 err;
@@ -3815,6 +3895,8 @@
 
 	brcmf_dbg(TRACE, "Enter %pM\n", mac);
 
+	if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
+		ifp = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
 	if (!check_vif_up(ifp->vif))
 		return -EIO;
 
@@ -3824,7 +3906,12 @@
 				     &scbval, sizeof(scbval));
 	if (err)
 		brcmf_err("SCB_DEAUTHENTICATE_FOR_REASON failed %d\n", err);
-
+	/*
+	 * Wait for the deauth event to come, supplicant will do the
+	 * delete iface immediately and we will have problem in sending
+	 * deauth frame if we delete the bss in firmware
+	 */
+	brcmf_delay(400);
 	brcmf_dbg(TRACE, "Exit\n");
 	return err;
 }
@@ -3857,6 +3944,7 @@
 {
 	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
 	const struct ieee80211_mgmt *mgmt;
+	struct brcmf_if *ifp;
 	struct brcmf_cfg80211_vif *vif;
 	s32 err = 0;
 	s32 ie_offset;
@@ -3868,41 +3956,41 @@
 
 	mgmt = (const struct ieee80211_mgmt *)buf;
 
-	if (ieee80211_is_mgmt(mgmt->frame_control)) {
-		if (ieee80211_is_probe_resp(mgmt->frame_control)) {
-			/* Right now the only reason to get a probe response */
-			/* is for p2p listen response from wpa_supplicant.   */
-			/* Unfortunately the wpa_supplicant sends it on the  */
-			/* primary ndev, while dongle wants it on the p2p    */
-			/* vif. Since this is only reason for a probe        */
-			/* response to be sent, the vif is taken from cfg.   */
-			/* If ever desired to send proberesp for non p2p     */
-			/* response then data should be checked for          */
-			/* "DIRECT-". Note in future supplicant will take    */
-			/* dedicated p2p wdev to do this and then this 'hack'*/
-			/* is not needed anymore.                            */
-			ie_offset =  DOT11_MGMT_HDR_LEN +
-				     DOT11_BCN_PRB_FIXED_LEN;
-			ie_len = len - ie_offset;
-
-			vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
-			if (vif == NULL) {
-				brcmf_err("No p2p device available for probe response\n");
-				err = -ENODEV;
-				goto exit;
-			}
-			err = brcmf_vif_set_mgmt_ie(vif,
-						    BRCMF_VNDR_IE_PRBRSP_FLAG,
-						    &buf[ie_offset],
-						    ie_len);
-			cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
-						GFP_KERNEL);
-			goto exit;
-		}
+	if (!ieee80211_is_mgmt(mgmt->frame_control)) {
+		brcmf_err("Driver only allows MGMT packet type\n");
+		return -EPERM;
 	}
-	brcmf_dbg(TRACE, "Unhandled, is_mgmt %d, fc=%04x!!!!!\n",
-		  ieee80211_is_mgmt(mgmt->frame_control), mgmt->frame_control);
-exit:
+
+	if (ieee80211_is_probe_resp(mgmt->frame_control)) {
+		/* Right now the only reason to get a probe response */
+		/* is for p2p listen response or for p2p GO from     */
+		/* wpa_supplicant. Unfortunately the probe is send   */
+		/* on primary ndev, while dongle wants it on the p2p */
+		/* vif. Since this is only reason for a probe        */
+		/* response to be sent, the vif is taken from cfg.   */
+		/* If ever desired to send proberesp for non p2p     */
+		/* response then data should be checked for          */
+		/* "DIRECT-". Note in future supplicant will take    */
+		/* dedicated p2p wdev to do this and then this 'hack'*/
+		/* is not needed anymore.                            */
+		ie_offset =  DOT11_MGMT_HDR_LEN +
+			     DOT11_BCN_PRB_FIXED_LEN;
+		ie_len = len - ie_offset;
+		ifp = netdev_priv(wdev->netdev);
+		vif = ifp->vif;
+		if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif)
+			vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
+		err = brcmf_vif_set_mgmt_ie(vif,
+					    BRCMF_VNDR_IE_PRBRSP_FLAG,
+					    &buf[ie_offset],
+					    ie_len);
+		cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
+					GFP_KERNEL);
+	} else {
+		brcmf_dbg(TRACE, "Unhandled, fc=%04x!!\n", mgmt->frame_control);
+		brcmf_dbg_hex_dump(true, buf, len, "payload, len=%Zu\n", len);
+	}
+
 	return err;
 }
 
@@ -3946,8 +4034,8 @@
 		  "Enter: event %d reason %d\n", e->event_code, e->reason);
 
 	/* Firmware sends us two proberesponses for each idx one. At the */
-	/* moment only bsscfgidx 0 is passed up to supplicant            */
-	if (e->bsscfgidx)
+	/* moment anything but bsscfgidx 0 is passed up to supplicant    */
+	if (e->bsscfgidx == 0)
 		return 0;
 
 	/* Check if wpa_supplicant has registered for this frame */
@@ -3999,6 +4087,7 @@
 	.flush_pmksa = brcmf_cfg80211_flush_pmksa,
 	.start_ap = brcmf_cfg80211_start_ap,
 	.stop_ap = brcmf_cfg80211_stop_ap,
+	.change_beacon = brcmf_cfg80211_change_beacon,
 	.del_station = brcmf_cfg80211_del_station,
 	.sched_scan_start = brcmf_cfg80211_sched_scan_start,
 	.sched_scan_stop = brcmf_cfg80211_sched_scan_stop,
@@ -4727,7 +4816,7 @@
 		brcmf_err("Failed to init iwm_priv (%d)\n", err);
 		goto cfg80211_attach_out;
 	}
-	brcmf_p2p_attach(cfg);
+	brcmf_p2p_attach(cfg, vif);
 
 	ifp->vif = vif;
 	return cfg;