libertas: misc power saving adjusts

* firmware for the CF card supports power saving
* the driver currenly only accept "iwconfig ethX power on|off", so
  I fixed what the range wext ioctl reports.
* initialize value/flags in lbs_get_power()
* get rid of unused parameter psmode in lbs_ps_confirm_sleep()
* some minor debug output tweaks

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/libertas/cmd.c

@@ -1927,10 +1927,6 @@ static int sendconfirmsleep(struct lbs_private *priv, u8 *cmdptr, u16 size)
 	int ret = 0;
 
 	lbs_deb_enter(LBS_DEB_HOST);
-
-	lbs_deb_host("SEND_SLEEPC_CMD: before download, cmd size %d\n",
-	       size);
-
 	lbs_deb_hex(LBS_DEB_HOST, "sleep confirm command", cmdptr, size);
 
 	ret = priv->hw_host_to_card(priv, MVMS_CMD, cmdptr, size);
@@ -1953,8 +1949,6 @@ static int sendconfirmsleep(struct lbs_private *priv, u8 *cmdptr, u16 size)
 			       priv->intcounter);
 		}
 		spin_unlock_irqrestore(&priv->driver_lock, flags);
-
-		lbs_deb_host("SEND_SLEEPC_CMD: sent confirm sleep\n");
 	}
 
 	lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
@@ -2006,10 +2000,10 @@ void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
  *  @param psmode  	Power Saving mode
  *  @return 	   	n/a
  */
-void lbs_ps_confirm_sleep(struct lbs_private *priv, u16 psmode)
+void lbs_ps_confirm_sleep(struct lbs_private *priv)
 {
 	unsigned long flags =0;
-	u8 allowed = 1;
+	int allowed = 1;
 
 	lbs_deb_enter(LBS_DEB_HOST);
 

drivers/net/wireless/libertas/cmdresp.c

@@ -656,11 +656,9 @@ int lbs_process_event(struct lbs_private *priv)
 	eventcause = priv->eventcause >> SBI_EVENT_CAUSE_SHIFT;
 	spin_unlock_irq(&priv->driver_lock);
 
-	lbs_deb_cmd("event cause %d\n", eventcause);
-
 	switch (eventcause) {
 	case MACREG_INT_CODE_LINK_SENSED:
-		lbs_deb_cmd("EVENT: MACREG_INT_CODE_LINK_SENSED\n");
+		lbs_deb_cmd("EVENT: link sensed\n");
 		break;
 
 	case MACREG_INT_CODE_DEAUTHENTICATED:
@@ -679,7 +677,7 @@ int lbs_process_event(struct lbs_private *priv)
 		break;
 
 	case MACREG_INT_CODE_PS_SLEEP:
-		lbs_deb_cmd("EVENT: sleep\n");
+		lbs_deb_cmd("EVENT: ps sleep\n");
 
 		/* handle unexpected PS SLEEP event */
 		if (priv->psstate == PS_STATE_FULL_POWER) {
@@ -689,17 +687,17 @@ int lbs_process_event(struct lbs_private *priv)
 		}
 		priv->psstate = PS_STATE_PRE_SLEEP;
 
-		lbs_ps_confirm_sleep(priv, (u16) priv->psmode);
+		lbs_ps_confirm_sleep(priv);
 
 		break;
 
 	case MACREG_INT_CODE_HOST_AWAKE:
-		lbs_deb_cmd("EVENT: HOST_AWAKE\n");
+		lbs_deb_cmd("EVENT: host awake\n");
 		lbs_send_confirmwake(priv);
 		break;
 
 	case MACREG_INT_CODE_PS_AWAKE:
-		lbs_deb_cmd("EVENT: awake\n");
+		lbs_deb_cmd("EVENT: ps awake\n");
 		/* handle unexpected PS AWAKE event */
 		if (priv->psstate == PS_STATE_FULL_POWER) {
 			lbs_deb_cmd(
@@ -730,14 +728,16 @@ int lbs_process_event(struct lbs_private *priv)
 		lbs_deb_cmd("EVENT: MULTICAST MIC ERROR\n");
 		handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_MULTICAST);
 		break;
+
 	case MACREG_INT_CODE_MIB_CHANGED:
+		lbs_deb_cmd("EVENT: MIB CHANGED\n");
+		break;
 	case MACREG_INT_CODE_INIT_DONE:
+		lbs_deb_cmd("EVENT: INIT DONE\n");
 		break;
-
 	case MACREG_INT_CODE_ADHOC_BCN_LOST:
 		lbs_deb_cmd("EVENT: ADHOC beacon lost\n");
 		break;
-
 	case MACREG_INT_CODE_RSSI_LOW:
 		lbs_pr_alert("EVENT: rssi low\n");
 		break;

drivers/net/wireless/libertas/decl.h

@@ -49,7 +49,7 @@ int lbs_set_regiontable(struct lbs_private *priv, u8 region, u8 band);
 int lbs_process_rxed_packet(struct lbs_private *priv, struct sk_buff *);
 
 void lbs_ps_sleep(struct lbs_private *priv, int wait_option);
-void lbs_ps_confirm_sleep(struct lbs_private *priv, u16 psmode);
+void lbs_ps_confirm_sleep(struct lbs_private *priv);
 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option);
 
 struct chan_freq_power *lbs_find_cfp_by_band_and_channel(

drivers/net/wireless/libertas/if_cs.c

@@ -882,6 +882,9 @@ static int if_cs_probe(struct pcmcia_device *p_dev)
 		goto out3;
 	}
 
+	/* The firmware for the CF card supports powersave */
+	priv->ps_supported = 1;
+
 	ret = 0;
 	goto out;
 

drivers/net/wireless/libertas/main.c

@@ -803,7 +803,7 @@ static int lbs_thread(void *data)
 				lbs_deb_thread("main_thread: PRE_SLEEP--intcounter=%d currenttxskb=%p dnld_sent=%d cur_cmd=%p, confirm now\n",
 					       priv->intcounter, priv->currenttxskb, priv->dnld_sent, priv->cur_cmd);
 
-				lbs_ps_confirm_sleep(priv, (u16) priv->psmode);
+				lbs_ps_confirm_sleep(priv);
 			} else {
 				/* workaround for firmware sending
 				 * deauth/linkloss event immediately

drivers/net/wireless/libertas/wext.c

@@ -656,13 +656,10 @@ static int lbs_get_range(struct net_device *dev, struct iw_request_info *info,
 	range->num_encoding_sizes = 2;
 	range->max_encoding_tokens = 4;
 
-	range->min_pmp = 1000000;
-	range->max_pmp = 120000000;
-	range->min_pmt = 1000;
-	range->max_pmt = 1000000;
-	range->pmp_flags = IW_POWER_PERIOD;
-	range->pmt_flags = IW_POWER_TIMEOUT;
-	range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_ALL_R;
+	/*
+	 * Right now we support only "iwconfig ethX power on|off"
+	 */
+	range->pm_capa = IW_POWER_ON;
 
 	/*
 	 * Minimum version we recommend
@@ -784,21 +781,14 @@ static int lbs_get_power(struct net_device *dev, struct iw_request_info *info,
 			  struct iw_param *vwrq, char *extra)
 {
 	struct lbs_private *priv = dev->priv;
-	int mode;
 
 	lbs_deb_enter(LBS_DEB_WEXT);
 
-	mode = priv->psmode;
-
-	if ((vwrq->disabled = (mode == LBS802_11POWERMODECAM))
-	    || priv->connect_status == LBS_DISCONNECTED)
-	{
-		goto out;
-	}
-
 	vwrq->value = 0;
+	vwrq->flags = 0;
+	vwrq->disabled = priv->psmode == LBS802_11POWERMODECAM
+		|| priv->connect_status == LBS_DISCONNECTED;
 
-out:
 	lbs_deb_leave(LBS_DEB_WEXT);
 	return 0;
 }