From c381508d884b4056427af28ccd169f188f5dde66 Mon Sep 17 00:00:00 2001
From: Jouni Malinen <jouni.malinen@atheros.com>
Date: Wed, 23 Jun 2010 23:04:21 -0700
Subject: [PATCH] P2P: Implement power save configuration

wpa_cli p2p_set ps <0/1/2>
wpa_cli p2p_set oppps <0/1>
wpa_cli p2p_set ctwindow <0..> msec
---
 src/drivers/driver.h        | 11 +++++++++++
 src/drivers/driver_ndis.c   |  3 ++-
 wpa_supplicant/ctrl_iface.c |  9 +++++++++
 wpa_supplicant/driver_i.h   | 10 ++++++++++
 4 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/src/drivers/driver.h b/src/drivers/driver.h
index 029465201..27e883126 100644
--- a/src/drivers/driver.h
+++ b/src/drivers/driver.h
@@ -1860,6 +1860,17 @@ struct wpa_driver_ops {
 	 * 0.
 	 */
 	int (*set_noa)(void *priv, u8 count, int start, int duration);
+
+	/**
+	 * set_p2p_powersave - Set P2P power save options
+	 * @priv: Private driver interface data
+	 * @legacy_ps: 0 = disable, 1 = enable, 2 = maximum PS, -1 = no change
+	 * @opp_ps: 0 = disable, 1 = enable, -1 = no change
+	 * @ctwindow: 0.. = change (msec), -1 = no change
+	 * Returns: 0 on success or -1 on failure
+	 */
+	int (*set_p2p_powersave)(void *priv, int legacy_ps, int opp_ps,
+				 int ctwindow);
 };
 
 
diff --git a/src/drivers/driver_ndis.c b/src/drivers/driver_ndis.c
index 73f50df82..b4b5cf313 100644
--- a/src/drivers/driver_ndis.c
+++ b/src/drivers/driver_ndis.c
@@ -3306,5 +3306,6 @@ const struct wpa_driver_ops wpa_driver_ndis_ops = {
 	NULL /* send_frame */,
 	NULL /* shared_freq */,
 	NULL /* get_noa */,
-	NULL /* set_noa */
+	NULL /* set_noa */,
+	NULL /* set_p2p_powersave */
 };
diff --git a/wpa_supplicant/ctrl_iface.c b/wpa_supplicant/ctrl_iface.c
index 74daf9606..7c096b3f7 100644
--- a/wpa_supplicant/ctrl_iface.c
+++ b/wpa_supplicant/ctrl_iface.c
@@ -2434,6 +2434,15 @@ static int p2p_ctrl_set(struct wpa_supplicant *wpa_s, char *cmd)
 		return wpa_drv_set_noa(wpa_s, count, start, duration);
 	}
 
+	if (os_strcmp(cmd, "ps") == 0)
+		return wpa_drv_set_p2p_powersave(wpa_s, atoi(param), -1, -1);
+
+	if (os_strcmp(cmd, "oppps") == 0)
+		return wpa_drv_set_p2p_powersave(wpa_s, -1, atoi(param), -1);
+
+	if (os_strcmp(cmd, "ctwindow") == 0)
+		return wpa_drv_set_p2p_powersave(wpa_s, -1, -1, atoi(param));
+
 	if (os_strcmp(cmd, "disabled") == 0) {
 		wpa_s->global->p2p_disabled = atoi(param);
 		wpa_printf(MSG_DEBUG, "P2P functionality %s",
diff --git a/wpa_supplicant/driver_i.h b/wpa_supplicant/driver_i.h
index 80bff26a1..0868fa8fa 100644
--- a/wpa_supplicant/driver_i.h
+++ b/wpa_supplicant/driver_i.h
@@ -522,4 +522,14 @@ static inline int wpa_drv_set_noa(struct wpa_supplicant *wpa_s, u8 count,
 	return wpa_s->driver->set_noa(wpa_s->drv_priv, count, start, duration);
 }
 
+static inline int wpa_drv_set_p2p_powersave(struct wpa_supplicant *wpa_s,
+					    int legacy_ps, int opp_ps,
+					    int ctwindow)
+{
+	if (!wpa_s->driver->set_p2p_powersave)
+		return -1;
+	return wpa_s->driver->set_p2p_powersave(wpa_s->drv_priv, legacy_ps,
+						opp_ps, ctwindow);
+}
+
 #endif /* DRIVER_I_H */