From: Jithu Jance <jithu@broadcom.com>
Date: Thu, 9 Aug 2012 18:18:43 +0000 (+0300)
Subject: P2P: Add driver op for requesting GO/AP channel switch
X-Git-Tag: aosp-jb-from-upstream~5
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=32e877fef742940d84b3c1af85224d56c59dd3f7;p=thirdparty%2Fhostap.git

P2P: Add driver op for requesting GO/AP channel switch

Signed-hostap: Jithu Jance <jithu@broadcom.com>

(manual merge of commit ef35f5a0fd2c41f92a3ecc29995c5de1f407d2af)
---

diff --git a/src/drivers/driver.h b/src/drivers/driver.h
index 8db7a6783..428c4e5db 100644
--- a/src/drivers/driver.h
+++ b/src/drivers/driver.h
@@ -2497,6 +2497,18 @@ struct wpa_driver_ops {
 	 */
 	void (*poll_client)(void *priv, const u8 *own_addr,
 			    const u8 *addr, int qos);
+
+	/**
+	 * switch_channel - Announce channel switch and migrate the GO to the
+	 * given frequency
+	 * @priv: Private driver interface data
+	 * @freq: Frequency in MHz
+	 * Returns: 0 on success, -1 on failure
+	 *
+	 * This function is used to move the GO to the legacy STA channel to
+	 * avoid frequency conflict in single channel concurrency.
+	 */
+	int (*switch_channel)(void *priv, unsigned int freq);
 };
 
 
diff --git a/wpa_supplicant/driver_i.h b/wpa_supplicant/driver_i.h
index ebbe17dc4..d8567b6da 100644
--- a/wpa_supplicant/driver_i.h
+++ b/wpa_supplicant/driver_i.h
@@ -657,4 +657,12 @@ static inline void wpa_drv_set_rekey_info(struct wpa_supplicant *wpa_s,
 	wpa_s->driver->set_rekey_info(wpa_s->drv_priv, kek, kck, replay_ctr);
 }
 
+static inline int wpa_drv_switch_channel(struct wpa_supplicant *wpa_s,
+					 unsigned int freq)
+{
+	if (!wpa_s->driver->switch_channel)
+		return -1;
+	return wpa_s->driver->switch_channel(wpa_s->drv_priv, freq);
+}
+
 #endif /* DRIVER_I_H */