commit 6b8b8632d0aef270743a31804fc2ea1ae9149de0
author Dmitry Shmidt <dimitrysh@google.com> Tue Oct 08 13:56:42 2013 -0700
committer Jouni Malinen <j@w1.fi> Fri Nov 01 16:36:34 2013 +0200
tree 2f3039d8ffe3c743f2b3ae13469feafa5dc9b7cd
parent 33cdef741472bca83aa5c8582dd1187788e3e3b9

Android: P2P: Fix restriction of GO channels on A-band

Bug: 11105901

Change-Id: Ibe8e85f47e95177700deedccb408f1eec85b8f3d
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>

src/p2p/p2p_go_neg.c

diff --git a/src/p2p/p2p_go_neg.c b/src/p2p/p2p_go_neg.c
index 17fb329..bd583be 100644
--- a/src/p2p/p2p_go_neg.c
+++ b/src/p2p/p2p_go_neg.c
@@ -418,7 +418,13 @@
 
 	/* Prefer a 5 GHz channel */
 	for (i = 0; i < intersection->reg_classes; i++) {
+#ifdef ANDROID_P2P
+		struct p2p_reg_class prc;
+		struct p2p_reg_class *c = &prc;
+		p2p_copy_reg_class(c, &intersection->reg_class[i]);
+#else
 		struct p2p_reg_class *c = &intersection->reg_class[i];
+#endif
 		if ((c->reg_class == 115 || c->reg_class == 124) &&
 		    c->channels) {
 			unsigned int r;

src/p2p/p2p_i.h

diff --git a/src/p2p/p2p_i.h b/src/p2p/p2p_i.h
index d28aae9..81e521e 100644
--- a/src/p2p/p2p_i.h
+++ b/src/p2p/p2p_i.h
@@ -572,6 +572,9 @@
 			    struct p2p_channels *res);
 int p2p_channels_includes(const struct p2p_channels *channels, u8 reg_class,
 			  u8 channel);
+#ifdef ANDROID_P2P
+size_t p2p_copy_reg_class(struct p2p_reg_class *dc, struct p2p_reg_class *sc);
+#endif
 
 /* p2p_parse.c */
 int p2p_parse_p2p_ie(const struct wpabuf *buf, struct p2p_message *msg);

src/p2p/p2p_utils.c

diff --git a/src/p2p/p2p_utils.c b/src/p2p/p2p_utils.c
index 0769ede..a4c48f6 100644
--- a/src/p2p/p2p_utils.c
+++ b/src/p2p/p2p_utils.c
@@ -244,12 +244,37 @@
 }
 
 
+#ifdef ANDROID_P2P
+static int p2p_block_op_freq(unsigned int freq)
+{
+	return (freq >= 5170 && freq < 5745);
+}
+
+
+size_t p2p_copy_reg_class(struct p2p_reg_class *dc, struct p2p_reg_class *sc)
+{
+	unsigned int i;
+
+	dc->reg_class = sc->reg_class;
+	dc->channels = 0;
+	for (i=0; i < sc->channels; i++) {
+		if (!p2p_block_op_freq(p2p_channel_to_freq(sc->reg_class,
+							   sc->channel[i]))) {
+			dc->channel[dc->channels] = sc->channel[i];
+			dc->channels++;
+		}
+	}
+	return dc->channels;
+}
+#endif
+
+
 int p2p_supported_freq(struct p2p_data *p2p, unsigned int freq)
 {
 	u8 op_reg_class, op_channel;
 
 #ifdef ANDROID_P2P
-	if (freq >= 5170 && freq < 5745)
+	if (p2p_block_op_freq(freq))
 		return 0;
 #endif
 	if (p2p_freq_to_channel(freq, &op_reg_class, &op_channel) < 0)