wl1271: Update join usage

Update the usage of join's, including using actual beacon interval and
dtim from AP, and configuring a basic rate set from AP.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/wl12xx/wl1271.h

@@ -104,6 +104,8 @@ enum {
 				  CFG_RX_CTL_EN | CFG_RX_BCN_EN |     \
 				  CFG_RX_AUTH_EN | CFG_RX_ASSOC_EN)
 
+#define WL1271_DEFAULT_BASIC_RATE_SET (ACX_RATE_MASK_ALL)
+
 #define WL1271_FW_NAME "wl1271-fw.bin"
 #define WL1271_NVS_NAME "wl1271-nvs.bin"
 
@@ -118,6 +120,9 @@ enum {
 #define WL1271_ELP_HW_STATE_ASLEEP 0
 #define WL1271_ELP_HW_STATE_IRQ    1
 
+#define WL1271_DEFAULT_BEACON_INT  100
+#define WL1271_DEFAULT_DTIM_PERIOD 1
+
 enum wl1271_state {
 	WL1271_STATE_OFF,
 	WL1271_STATE_ON,
@@ -369,6 +374,13 @@ struct wl1271 {
 	/* Our association ID */
 	u16 aid;
 
+	/* Beacon parameters */
+	u16 beacon_int;
+	u8 dtim_period;
+
+	/* currently configured rate set */
+	u32 basic_rate_set;
+
 	/* The current band */
 	enum ieee80211_band band;
 

drivers/net/wireless/wl12xx/wl1271_cmd.c

@@ -175,11 +175,9 @@ int wl1271_cmd_cal(struct wl1271 *wl)
 	return ret;
 }
 
-int wl1271_cmd_join(struct wl1271 *wl, u8 bss_type, u8 dtim_interval,
-		    u16 beacon_interval, u8 wait)
+int wl1271_cmd_join(struct wl1271 *wl)
 {
 	static bool do_cal = true;
-	unsigned long timeout;
 	struct wl1271_cmd_join *join;
 	int ret, i;
 	u8 *bssid;
@@ -213,9 +211,9 @@ int wl1271_cmd_join(struct wl1271 *wl, u8 bss_type, u8 dtim_interval,
 	join->basic_rate_set = RATE_MASK_1MBPS | RATE_MASK_2MBPS |
 		RATE_MASK_5_5MBPS | RATE_MASK_11MBPS;
 
-	join->beacon_interval = beacon_interval;
-	join->dtim_interval = dtim_interval;
-	join->bss_type = bss_type;
+	join->beacon_interval = wl->beacon_int;
+	join->dtim_interval = wl->dtim_period;
+	join->bss_type = wl->bss_type;
 	join->channel = wl->channel;
 	join->ssid_len = wl->ssid_len;
 	memcpy(join->ssid, wl->ssid, wl->ssid_len);
@@ -239,14 +237,11 @@ int wl1271_cmd_join(struct wl1271 *wl, u8 bss_type, u8 dtim_interval,
 		goto out_free;
 	}
 
-	timeout = msecs_to_jiffies(JOIN_TIMEOUT);
-
 	/*
 	 * ugly hack: we should wait for JOIN_EVENT_COMPLETE_ID but to
 	 * simplify locking we just sleep instead, for now
 	 */
-	if (wait)
-		msleep(10);
+	msleep(10);
 
 out_free:
 	kfree(join);

drivers/net/wireless/wl12xx/wl1271_cmd.h

@@ -30,8 +30,7 @@
 struct acx_header;
 
 int wl1271_cmd_send(struct wl1271 *wl, u16 type, void *buf, size_t buf_len);
-int wl1271_cmd_join(struct wl1271 *wl, u8 bss_type, u8 dtim_interval,
-		    u16 beacon_interval, u8 wait);
+int wl1271_cmd_join(struct wl1271 *wl);
 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer);
 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len);
 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len);

drivers/net/wireless/wl12xx/wl1271_main.c

@@ -394,8 +394,7 @@ static void wl1271_filter_work(struct work_struct *work)
 	if (ret < 0)
 		goto out;
 
-	/* FIXME: replace the magic numbers with proper definitions */
-	ret = wl1271_cmd_join(wl, wl->bss_type, 1, 100, 0);
+	ret = wl1271_cmd_join(wl);
 	if (ret < 0)
 		goto out_sleep;
 
@@ -672,8 +671,7 @@ static int wl1271_op_config_interface(struct ieee80211_hw *hw,
 		memcpy(wl->ssid, conf->ssid, wl->ssid_len);
 
 	if (wl->bss_type != BSS_TYPE_IBSS) {
-		/* FIXME: replace the magic numbers with proper definitions */
-		ret = wl1271_cmd_join(wl, wl->bss_type, 5, 100, 1);
+		ret = wl1271_cmd_join(wl);
 		if (ret < 0)
 			goto out_sleep;
 	}
@@ -696,8 +694,7 @@ static int wl1271_op_config_interface(struct ieee80211_hw *hw,
 		if (ret < 0)
 			goto out_sleep;
 
-		/* FIXME: replace the magic numbers with proper definitions */
-		ret = wl1271_cmd_join(wl, wl->bss_type, 1, 100, 0);
+		ret = wl1271_cmd_join(wl);
 
 		if (ret < 0)
 			goto out_sleep;
@@ -738,8 +735,7 @@ static int wl1271_op_config(struct ieee80211_hw *hw, u32 changed)
 		u8 old_channel = wl->channel;
 		wl->channel = channel;
 
-		/* FIXME: use beacon interval provided by mac80211 */
-		ret = wl1271_cmd_join(wl, wl->bss_type, 1, 100, 0);
+		ret = wl1271_cmd_join(wl);
 		if (ret < 0) {
 			wl->channel = old_channel;
 			goto out_sleep;
@@ -1016,8 +1012,17 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
 
 	if (changed & BSS_CHANGED_ASSOC) {
 		if (bss_conf->assoc) {
+			wl->beacon_int = bss_conf->beacon_int;
+			wl->dtim_period = bss_conf->dtim_period;
 			wl->aid = bss_conf->aid;
 
+			ret = wl1271_cmd_join(wl);
+			if (ret < 0) {
+				wl1271_warning("Association configuration "
+					       "failed %d", ret);
+				goto out_sleep;
+			}
+
 			ret = wl1271_cmd_build_ps_poll(wl, wl->aid);
 			if (ret < 0)
 				goto out_sleep;
@@ -1033,7 +1038,14 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
 				if (ret < 0)
 					goto out_sleep;
 			}
+		} else {
+			/* use defaults when not associated */
+			wl->beacon_int = WL1271_DEFAULT_BEACON_INT;
+			wl->dtim_period = WL1271_DEFAULT_DTIM_PERIOD;
+			wl->basic_rate_set = WL1271_DEFAULT_BASIC_RATE_SET;
+			wl->aid = 0;
 		}
+
 	}
 
 	if (changed & BSS_CHANGED_ERP_SLOT) {
@@ -1066,13 +1078,20 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
 	}
 
 	if (changed & BSS_CHANGED_BASIC_RATES) {
-		u32 enabled_rates = wl1271_enabled_rates_get(
+		wl->basic_rate_set = wl1271_enabled_rates_get(
 			wl, bss_conf->basic_rates);
-		ret = wl1271_acx_rate_policies(wl, enabled_rates);
+		ret = wl1271_acx_rate_policies(wl, wl->basic_rate_set);
+
 		if (ret < 0) {
 			wl1271_warning("Set rate policies failed %d", ret);
 			goto out_sleep;
 		}
+		ret = wl1271_cmd_join(wl);
+		if (ret < 0) {
+			wl1271_warning("Join with new basic rate "
+				       "set failed %d", ret);
+			goto out_sleep;
+		}
 	}
 
 out_sleep:
@@ -1269,6 +1288,9 @@ static int __devinit wl1271_probe(struct spi_device *spi)
 	wl->psm_requested = false;
 	wl->tx_queue_stopped = false;
 	wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
+	wl->beacon_int = WL1271_DEFAULT_BEACON_INT;
+	wl->dtim_period = WL1271_DEFAULT_DTIM_PERIOD;
+	wl->basic_rate_set = WL1271_DEFAULT_BASIC_RATE_SET;
 	wl->band = IEEE80211_BAND_2GHZ;
 
 	/* We use the default power on sleep time until we know which chip