Snap for 7796451 from 70e5f9dcf6bd1b30f9987134d4a677ebd61d519f to sc-qpr1-releaseandroid-12.0.0_r28android-12.0.0_r26android-12.0.0_r16android12-qpr1-release

Change-Id: Iaf51c2ccc32ef7f492208b06155ec2830ea35cfd

1 files changed, 58 insertions, 32 deletions

diff --git a/wpa_supplicant/p2p_supplicant.c b/wpa_supplicant/p2p_supplicant.c
index a7e7587b..9215794a 100644
--- a/wpa_supplicant/p2p_supplicant.c
+++ b/wpa_supplicant/p2p_supplicant.c
@@ -104,6 +104,9 @@
  */
 #define P2P_RECONSIDER_GO_MOVE_DELAY 30
 
+/* Check if frequency is 2GHz */
+#define	IS_2GHZ(n)	(n >= 2412 && n <= 2484)
+
 enum p2p_group_removal_reason {
 	P2P_GROUP_REMOVAL_UNKNOWN,
 	P2P_GROUP_REMOVAL_SILENT,
@@ -5564,6 +5567,7 @@ static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
 	struct wpa_used_freq_data *freqs;
 	int res, best_freq, num_unused;
 	unsigned int freq_in_use = 0, num, i, max_pref_freq;
+	int p2p_pref_freq;
 
 	max_pref_freq = *num_pref_freq;
 	*num_pref_freq = 0;
@@ -5632,46 +5636,68 @@ static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
 
 	best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
 
-	if (!wpa_s->conf->num_p2p_pref_chan && *pref_freq == 0) {
-		enum wpa_driver_if_type iface_type;
+	if (*pref_freq == 0) {
+		if (wpa_s->conf->num_p2p_pref_chan && IS_2GHZ(best_freq)) {
+			i = 0;
+			while (i < wpa_s->conf->num_p2p_pref_chan) {
+				p2p_pref_freq = ieee80211_chan_to_freq(NULL,
+					wpa_s->conf->p2p_pref_chan[i].op_class,
+					wpa_s->conf->p2p_pref_chan[i].chan);
+
+				if (p2p_supported_freq(wpa_s->global->p2p, p2p_pref_freq) &&
+					!wpas_p2p_disallowed_freq(wpa_s->global, p2p_pref_freq)) {
+					best_freq = p2p_pref_freq;
+					wpa_printf(MSG_DEBUG, "P2P: Using frequency (%u MHz) "
+						"from P2P preferred channel list", best_freq);
+					break;
+				} else {
+					wpa_printf(MSG_MSGDUMP, "P2P: Skipping preferred "
+						"frequency (%u MHz) ", p2p_pref_freq);
+				}
+				i++;
+			}
+		} else {
+			enum wpa_driver_if_type iface_type;
 
-		if (go)
-			iface_type = WPA_IF_P2P_GO;
-		else
-			iface_type = WPA_IF_P2P_CLIENT;
+			if (go)
+				iface_type = WPA_IF_P2P_GO;
+			else
+				iface_type = WPA_IF_P2P_CLIENT;
 
-		wpa_printf(MSG_DEBUG, "P2P: best_freq=%d, go=%d",
-			   best_freq, go);
+			wpa_printf(MSG_DEBUG, "P2P: best_freq=%d, go=%d",
+				best_freq, go);
 
-		res = wpa_drv_get_pref_freq_list(wpa_s, iface_type,
+			res = wpa_drv_get_pref_freq_list(wpa_s, iface_type,
 						 &max_pref_freq,
 						 pref_freq_list);
-		if (!res && max_pref_freq > 0) {
-			*num_pref_freq = max_pref_freq;
-			i = 0;
-			while (i < *num_pref_freq &&
-			       (!p2p_supported_freq(wpa_s->global->p2p,
-						    pref_freq_list[i]) ||
-				wpas_p2p_disallowed_freq(wpa_s->global,
-							 pref_freq_list[i]))) {
-				wpa_printf(MSG_DEBUG,
-					   "P2P: preferred_freq_list[%d]=%d is disallowed",
-					   i, pref_freq_list[i]);
-				i++;
-			}
-			if (i != *num_pref_freq) {
-				best_freq = pref_freq_list[i];
-				wpa_printf(MSG_DEBUG,
-					   "P2P: Using preferred_freq_list[%d]=%d",
-					   i, best_freq);
+			if (!res && max_pref_freq > 0) {
+				*num_pref_freq = max_pref_freq;
+				i = 0;
+				while (i < *num_pref_freq &&
+					(!p2p_supported_freq(wpa_s->global->p2p,
+						pref_freq_list[i]) ||
+					wpas_p2p_disallowed_freq(wpa_s->global,
+							pref_freq_list[i]))) {
+					wpa_printf(MSG_DEBUG,
+						"P2P: preferred_freq_list[%d]=%d is disallowed",
+						i, pref_freq_list[i]);
+					i++;
+				}
+				if (i != *num_pref_freq) {
+					best_freq = pref_freq_list[i];
+					wpa_printf(MSG_DEBUG,
+						"P2P: Using preferred_freq_list[%d]=%d",
+						i, best_freq);
+				} else {
+					wpa_printf(MSG_DEBUG,
+						"P2P: All driver preferred frequencies are "
+						"disallowed for P2P use");
+					*num_pref_freq = 0;
+				}
 			} else {
 				wpa_printf(MSG_DEBUG,
-					   "P2P: All driver preferred frequencies are disallowed for P2P use");
-				*num_pref_freq = 0;
+					"P2P: No preferred frequency list available");
 			}
-		} else {
-			wpa_printf(MSG_DEBUG,
-				   "P2P: No preferred frequency list available");
 		}
 	}