From 3e7921a09407743c52498c188adfa56156d60fc3 Mon Sep 17 00:00:00 2001 From: Malcolm Priestley Date: Sun, 21 Jun 2015 11:05:55 +0100 Subject: [PATCH] staging: vt6655: Correct listen interval TBTT wake up PSbIsNextTBTTWakeUp is called at beacon intervals. The should listen to next beacon on count down of wake_up_count == 1. This restores this back to vendors code but modified for mac80211. Signed-off-by: Malcolm Priestley Signed-off-by: Greg Kroah-Hartman --- drivers/staging/vt6655/device.h | 1 + drivers/staging/vt6655/power.c | 16 ++++++++++++---- 2 files changed, 13 insertions(+), 4 deletions(-) diff --git a/drivers/staging/vt6655/device.h b/drivers/staging/vt6655/device.h index 5cf1b337cba7..6aebb495fa8d 100644 --- a/drivers/staging/vt6655/device.h +++ b/drivers/staging/vt6655/device.h @@ -403,6 +403,7 @@ struct vnt_private { unsigned char abyEEPROM[EEP_MAX_CONTEXT_SIZE]; /* unsigned long alignment */ unsigned short wBeaconInterval; + u16 wake_up_count; struct work_struct interrupt_work; diff --git a/drivers/staging/vt6655/power.c b/drivers/staging/vt6655/power.c index be3c4e949b6a..06e6b9d871c4 100644 --- a/drivers/staging/vt6655/power.c +++ b/drivers/staging/vt6655/power.c @@ -157,10 +157,18 @@ PSbIsNextTBTTWakeUp( struct ieee80211_conf *conf = &hw->conf; bool bWakeUp = false; - if (conf->listen_interval == 1) { - /* Turn on wake up to listen next beacon */ - MACvRegBitsOn(pDevice->PortOffset, MAC_REG_PSCTL, PSCTL_LNBCN); - bWakeUp = true; + if (conf->listen_interval > 1) { + if (!pDevice->wake_up_count) + pDevice->wake_up_count = conf->listen_interval; + + --pDevice->wake_up_count; + + if (pDevice->wake_up_count == 1) { + /* Turn on wake up to listen next beacon */ + MACvRegBitsOn(pDevice->PortOffset, + MAC_REG_PSCTL, PSCTL_LNBCN); + bWakeUp = true; + } } return bWakeUp;