void android_ar6k_check_wow_status(AR_SOFTC_T *ar, struct sk_buff *skb, A_BOOL isEvent)
{
#ifdef CONFIG_PM
if (ar->arWowState!=WOW_STATE_NONE) {
if (ar->arWowState==WOW_STATE_SUSPENDING) {
AR_DEBUG_PRINTF(ATH_DEBUG_SUSPEND,("%s: Received IRQ while we are wow suspending!!!\n", __func__));
return;
}
/* Wow resume from irq interrupt */
AR_DEBUG_PRINTF(ATH_DEBUG_SUSPEND, ("%s: WoW resume from irq thread status %d\n",
__func__, ar->arOsPowerCtrl));
ar6000_wow_resume(ar);
ar->arOsPowerCtrl = WLAN_PWR_CTRL_UP;
} else if (screen_is_off && skb && ar->arConnected) {
A_BOOL needWake = FALSE;
if (isEvent) {
if (A_NETBUF_LEN(skb) >= sizeof(A_UINT16)) {
A_UINT16 cmd = *(const A_UINT16 *)A_NETBUF_DATA(skb);
switch (cmd) {
case WMI_CONNECT_EVENTID:
case WMI_DISCONNECT_EVENTID:
needWake = TRUE;
break;
default:
/* dont wake lock the system for other event */
break;
}
}
} else if (A_NETBUF_LEN(skb) >= sizeof(ATH_MAC_HDR)) {
ATH_MAC_HDR *datap = (ATH_MAC_HDR *)A_NETBUF_DATA(skb);
if (!IEEE80211_IS_MULTICAST(datap->dstMac)) {
switch (A_BE2CPU16(datap->typeOrLen)) {
case 0x0800: /* IP */
case 0x888e: /* EAPOL */
case 0x88c7: /* RSN_PREAUTH */
case 0x88b4: /* WAPI */
needWake = TRUE;
break;
case 0x0806: /* ARP is not important to hold wake lock */
default:
break;
}
}
}
if (needWake) {
/* keep host wake up if there is any event and packate comming in*/
wake_lock_timeout(&ar6k_wow_wake_lock, 3*HZ);
if (wowledon) {
char buf[32];
int len = sprintf(buf, "on");
android_readwrite_file("/sys/power/state", NULL, buf, len);
len = sprintf(buf, "%d", 127);
android_readwrite_file("/sys/class/leds/lcd-backlight/brightness",
NULL, buf,len);
}
}
}
#endif /* CONFIG_PM */
}
static A_STATUS ar6000_resume_ev(void *context)
{
AR_SOFTC_T *ar = (AR_SOFTC_T *)context;
A_UINT16 powerCtrl = ar->arOsPowerCtrl;
wake_lock(&ar6k_init_wake_lock);
AR_DEBUG_PRINTF(ATH_DEBUG_SUSPEND, ("%s: enter previous state %d wowState %d\n", __func__, powerCtrl, ar->arWowState));
ar->arOsPowerCtrl = WLAN_PWR_CTRL_UP;
switch (powerCtrl) {
case WLAN_PWR_CTRL_WOW:
ar6000_wow_resume(ar);
break;
case WLAN_PWR_CTRL_CUT_PWR:
ar6000_restart_endpoint(ar->arNetDev);
break;
case WLAN_PWR_CTRL_DEEP_SLEEP:
ar6000_set_wlan_state(ar, WLAN_ENABLED);
break;
case WLAN_PWR_CTRL_DEEP_SLEEP_DISABLED:
break;
case WLAN_PWR_CTRL_UP:
break;
default:
AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Strange SDIO bus power mode!!\n"));
break;
}
wake_unlock(&ar6k_init_wake_lock);
return A_OK;
}
A_STATUS ar6000_resume_ev(void *context)
{
AR_SOFTC_T *ar = (AR_SOFTC_T *)context;
A_UINT16 powerState = ar->arWlanPowerState;
#ifdef CONFIG_HAS_WAKELOCK
wake_lock(&ar6k_suspend_wake_lock);
#endif
AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("%s: enter previous state %d wowState %d\n", __func__, powerState, ar->arWowState));
switch (powerState) {
case WLAN_POWER_STATE_WOW:
ar6000_wow_resume(ar);
break;
case WLAN_POWER_STATE_CUT_PWR:
/* WiFi is ON before suspend */
if (!ar->arWlanOff) {
ar6000_enter_exit_cut_power_state(ar, TRUE);
ar->arWlanState = WLAN_ENABLED;
} else {
/*
* WiFi is OFF before suspend.
* For BT clock sharing designs, exit cut_power mode
* and enter deep sleep mode, if BT is ON.
*/
if ((ar->arBTSharing) && (!ar->arBTOff)) {
ar6000_enter_exit_cut_power_state(ar, TRUE);
ar6000_enter_exit_deep_sleep_state(ar, FALSE);
}
}
break;
case WLAN_POWER_STATE_DEEP_SLEEP:
/* WiFi is ON before suspend */
if (!ar->arWlanOff) {
ar6000_enter_exit_deep_sleep_state(ar, TRUE);
ar->arWlanState = WLAN_ENABLED;
}
break;
case WLAN_POWER_STATE_ON:
break;
default:
AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Strange SDIO bus power mode!!\n"));
break;
}
#ifdef CONFIG_HAS_WAKELOCK
wake_unlock(&ar6k_suspend_wake_lock);
#endif
return A_OK;
}
void ar6000_check_wow_status(AR_SOFTC_T *ar, struct sk_buff *skb, A_BOOL isEvent)
{
if (ar->arWowState!=WLAN_WOW_STATE_NONE) {
if (ar->arWowState==WLAN_WOW_STATE_SUSPENDING) {
AR_DEBUG_PRINTF(ATH_DEBUG_PM,("\n%s: Received IRQ while we are wow suspending!!!\n\n", __func__));
return;
}
/* Wow resume from irq interrupt */
AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("%s: WoW resume from irq thread status %d\n", __func__, ar->arWlanPowerState));
ar6000_wow_resume(ar);
} else {
#ifdef ANDROID_ENV
android_ar6k_check_wow_status(ar, skb, isEvent);
#endif
}
}
