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Commit 43c93d9b authored by Malcolm Priestley's avatar Malcolm Priestley Committed by Greg Kroah-Hartman
Browse files

staging: vt6656: implement power saving code. 



The device should ready to listen to next beacon so on count down of
wake_up_count == 1.

schedule command WLAN_CMD_TBTT_WAKEUP which calls vnt_next_tbtt_wakeup which
wakes the device.

This restores this back to vendors code with a slight difference the
count down is in the interrupt handler.

Signed-off-by: default avatarMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c1515879

drivers/staging/vt6656/device.h

+2 −0
Original line number Diff line number Diff line
@@ -389,6 +389,8 @@ struct vnt_private { 
	u8 bb_pre_ed_rssi;

	u8 bb_pre_ed_index;



	u16 wake_up_count;



	/* command timer */

	struct delayed_work run_command_work;

drivers/staging/vt6656/int.c

+11 −3
Original line number Diff line number Diff line
@@ -149,8 +149,16 @@ void vnt_int_process_data(struct vnt_private *priv) 
				priv->op_mode == NL80211_IFTYPE_AP)

			vnt_schedule_command(priv, WLAN_CMD_BECON_SEND);



		if (int_data->isr0 & ISR_TBTT) {

			if (priv->hw->conf.flags & IEEE80211_CONF_PS)

		if (int_data->isr0 & ISR_TBTT &&

		    priv->hw->conf.flags & IEEE80211_CONF_PS) {

			if (!priv->wake_up_count)

				priv->wake_up_count =

					priv->hw->conf.listen_interval;



			--priv->wake_up_count;



			/* Turn on wake up to listen next beacon */

			if (priv->wake_up_count == 1)

				vnt_schedule_command(priv,

						     WLAN_CMD_TBTT_WAKEUP);

		}

drivers/staging/vt6656/power.c

+1 −1
Original line number Diff line number Diff line
@@ -134,7 +134,7 @@ int vnt_next_tbtt_wakeup(struct vnt_private *priv) 
	struct ieee80211_conf *conf = &hw->conf;

	int wake_up = false;



	if (conf->listen_interval == 1) {

	if (conf->listen_interval > 1) {

		/* Turn on wake up to listen next beacon */

		vnt_mac_reg_bits_on(priv, MAC_REG_PSCTL, PSCTL_LNBCN);

		wake_up = true;