/* * * Copyright (c) 2004-2010 Atheros Communications Inc. * All rights reserved. * * // // Permission to use, copy, modify, and/or distribute this software for any // purpose with or without fee is hereby granted, provided that the above // copyright notice and this permission notice appear in all copies. // // THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES // WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF // MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR // ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES // WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN // ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF // OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. // // * */ /* * Implementation of system power management */ #include "ar6000_drv.h" #include #include #include "wlan_config.h" #ifdef CONFIG_HAS_WAKELOCK #include #endif #define WOW_ENABLE_MAX_INTERVAL 0 #define WOW_SET_SCAN_PARAMS 0 extern unsigned int wmitimeout; extern wait_queue_head_t arEvent; #ifdef CONFIG_PM #ifdef CONFIG_HAS_WAKELOCK struct wake_lock ar6k_suspend_wake_lock; struct wake_lock ar6k_wow_wake_lock; #endif #endif /* CONFIG_PM */ #ifdef ANDROID_ENV extern void android_ar6k_check_wow_status(AR_SOFTC_T *ar, struct sk_buff *skb, A_BOOL isEvent); #endif #undef ATH_MODULE_NAME #define ATH_MODULE_NAME pm #define ATH_DEBUG_PM ATH_DEBUG_MAKE_MODULE_MASK(0) #ifdef DEBUG static ATH_DEBUG_MASK_DESCRIPTION pm_debug_desc[] = { { ATH_DEBUG_PM , "System power management"}, }; ATH_DEBUG_INSTANTIATE_MODULE_VAR(pm, "pm", "System Power Management", ATH_DEBUG_MASK_DEFAULTS | ATH_DEBUG_PM, ATH_DEBUG_DESCRIPTION_COUNT(pm_debug_desc), pm_debug_desc); #endif /* DEBUG */ A_STATUS ar6000_exit_cut_power_state(AR_SOFTC_T *ar); #ifdef CONFIG_PM static void ar6k_send_asleep_event_to_app(AR_SOFTC_T *ar, A_BOOL asleep) { char buf[128]; union iwreq_data wrqu; snprintf(buf, sizeof(buf), "HOST_ASLEEP=%s", asleep ? "asleep" : "awake"); A_MEMZERO(&wrqu, sizeof(wrqu)); wrqu.data.length = strlen(buf); wireless_send_event(ar->arNetDev, IWEVCUSTOM, &wrqu, buf); } static void ar6000_wow_resume(AR_SOFTC_T *ar) { if (ar->arWowState!= WLAN_WOW_STATE_NONE) { A_UINT16 fg_start_period = (ar->scParams.fg_start_period==0) ? 1 : ar->scParams.fg_start_period; A_UINT16 bg_period = (ar->scParams.bg_period==0) ? 60 : ar->scParams.bg_period; WMI_SET_HOST_SLEEP_MODE_CMD hostSleepMode = {TRUE, FALSE}; ar->arWowState = WLAN_WOW_STATE_NONE; #ifdef CONFIG_HAS_WAKELOCK wake_lock_timeout(&ar6k_wow_wake_lock, 3*HZ); #endif if (wmi_set_host_sleep_mode_cmd(ar->arWmi, &hostSleepMode)!=A_OK) { AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("Fail to setup restore host awake\n")); } #if WOW_SET_SCAN_PARAMS wmi_scanparams_cmd(ar->arWmi, fg_start_period, ar->scParams.fg_end_period, bg_period, ar->scParams.minact_chdwell_time, ar->scParams.maxact_chdwell_time, ar->scParams.pas_chdwell_time, ar->scParams.shortScanRatio, ar->scParams.scanCtrlFlags, ar->scParams.max_dfsch_act_time, ar->scParams.maxact_scan_per_ssid); #else (void)fg_start_period; (void)bg_period; #endif #if WOW_ENABLE_MAX_INTERVAL /* we don't do it if the power consumption is already good enough. */ if (wmi_listeninterval_cmd(ar->arWmi, ar->arListenIntervalT, ar->arListenIntervalB) == A_OK) { } #endif ar6k_send_asleep_event_to_app(ar, FALSE); AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("Resume WoW successfully\n")); } else { AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("WoW does not invoked. skip resume")); } ar->arWlanPowerState = WLAN_POWER_STATE_ON; } static void ar6000_wow_suspend(AR_SOFTC_T *ar) { #define WOW_LIST_ID 1 if (ar->arNetworkType != AP_NETWORK) { /* Setup WoW for unicast & Arp request for our own IP disable background scan. Set listen interval into 1000 TUs Enable keepliave for 110 seconds */ struct in_ifaddr **ifap = NULL; struct in_ifaddr *ifa = NULL; struct in_device *in_dev; A_UINT8 macMask[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; A_STATUS status; WMI_ADD_WOW_PATTERN_CMD addWowCmd = { .filter = { 0 } }; WMI_DEL_WOW_PATTERN_CMD delWowCmd; WMI_SET_HOST_SLEEP_MODE_CMD hostSleepMode = {FALSE, TRUE}; WMI_SET_WOW_MODE_CMD wowMode = { .enable_wow = TRUE, .hostReqDelay = 500 };/*500 ms delay*/ if (ar->arWowState!= WLAN_WOW_STATE_NONE) { AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("System already go into wow mode!\n")); return; } ar6000_TxDataCleanup(ar); /* IMPORTANT, otherwise there will be 11mA after listen interval as 1000*/ #if WOW_ENABLE_MAX_INTERVAL /* we don't do it if the power consumption is already good enough. */ if (wmi_listeninterval_cmd(ar->arWmi, A_MAX_WOW_LISTEN_INTERVAL, 0) == A_OK) { } #endif #if WOW_SET_SCAN_PARAMS status = wmi_scanparams_cmd(ar->arWmi, 0xFFFF, 0, 0xFFFF, 0, 0, 0, 0, 0, 0, 0); #endif /* clear up our WoW pattern first */ delWowCmd.filter_list_id = WOW_LIST_ID; delWowCmd.filter_id = 0; wmi_del_wow_pattern_cmd(ar->arWmi, &delWowCmd); /* setup unicast packet pattern for WoW */ if (ar->arNetDev->dev_addr[1]) { addWowCmd.filter_list_id = WOW_LIST_ID; addWowCmd.filter_size = 6; /* MAC address */ addWowCmd.filter_offset = 0; status = wmi_add_wow_pattern_cmd(ar->arWmi, &addWowCmd, ar->arNetDev->dev_addr, macMask, addWowCmd.filter_size); if (status != A_OK) { AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("Fail to add WoW pattern\n")); } } /* setup ARP request for our own IP */ if ((in_dev = __in_dev_get_rtnl(ar->arNetDev)) != NULL) { for (ifap = &in_dev->ifa_list; (ifa = *ifap) != NULL; ifap = &ifa->ifa_next) { if (!strcmp(ar->arNetDev->name, ifa->ifa_label)) { break; /* found */ } } } if (ifa && ifa->ifa_local) { WMI_SET_IP_CMD ipCmd; memset(&ipCmd, 0, sizeof(ipCmd)); ipCmd.ips[0] = ifa->ifa_local; status = wmi_set_ip_cmd(ar->arWmi, &ipCmd); if (status != A_OK) { AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("Fail to setup IP for ARP agent\n")); } } #ifndef ATH6K_CONFIG_OTA_MODE wmi_powermode_cmd(ar->arWmi, REC_POWER); #endif status = wmi_set_wow_mode_cmd(ar->arWmi, &wowMode); if (status != A_OK) { AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("Fail to enable wow mode\n")); } ar6k_send_asleep_event_to_app(ar, TRUE); status = wmi_set_host_sleep_mode_cmd(ar->arWmi, &hostSleepMode); if (status != A_OK) { AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("Fail to set host asleep\n")); } ar->arWowState = WLAN_WOW_STATE_SUSPENDING; if (ar->arTxPending[ar->arControlEp]) { A_UINT32 timeleft = wait_event_interruptible_timeout(arEvent, ar->arTxPending[ar->arControlEp] == 0, wmitimeout * HZ); if (!timeleft || signal_pending(current)) { /* what can I do? wow resume at once */ AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("Fail to setup WoW. Pending wmi control data %d\n", ar->arTxPending[ar->arControlEp])); } } status = hifWaitForPendingRecv(ar->arHifDevice); ar->arWowState = WLAN_WOW_STATE_SUSPENDED; ar->arWlanPowerState = WLAN_POWER_STATE_WOW; } else { AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("Not allowed to go to WOW at this moment.\n")); } } A_STATUS ar6000_suspend_ev(void *context) { A_STATUS status = A_OK; AR_SOFTC_T *ar = (AR_SOFTC_T *)context; A_INT16 pmmode = ar->arSuspendConfig; wow_not_connected: switch (pmmode) { case WLAN_SUSPEND_WOW: if (ar->arWmiReady && ar->arWlanState==WLAN_ENABLED && ar->arConnected) { ar6000_wow_suspend(ar); AR_DEBUG_PRINTF(ATH_DEBUG_PM,("%s:Suspend for wow mode %d\n", __func__, ar->arWlanPowerState)); } else { pmmode = ar->arWow2Config; goto wow_not_connected; } break; case WLAN_SUSPEND_CUT_PWR: /* fall through */ case WLAN_SUSPEND_CUT_PWR_IF_BT_OFF: /* fall through */ case WLAN_SUSPEND_DEEP_SLEEP: /* fall through */ default: status = ar6000_update_wlan_pwr_state(ar, WLAN_DISABLED, TRUE); if (ar->arWlanPowerState==WLAN_POWER_STATE_ON || ar->arWlanPowerState==WLAN_POWER_STATE_WOW) { AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("Strange suspend state for not wow mode %d", ar->arWlanPowerState)); } AR_DEBUG_PRINTF(ATH_DEBUG_PM,("%s:Suspend for %d mode pwr %d status %d\n", __func__, pmmode, ar->arWlanPowerState, status)); status = (ar->arWlanPowerState == WLAN_POWER_STATE_CUT_PWR) ? A_OK : A_EBUSY; break; } ar->scan_triggered = 0; return status; } 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: /* fall through */ case WLAN_POWER_STATE_DEEP_SLEEP: ar6000_update_wlan_pwr_state(ar, WLAN_ENABLED, TRUE); AR_DEBUG_PRINTF(ATH_DEBUG_PM,("%s:Resume for %d mode pwr %d\n", __func__, powerState, ar->arWlanPowerState)); 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 } } A_STATUS ar6000_power_change_ev(void *context, A_UINT32 config) { AR_SOFTC_T *ar = (AR_SOFTC_T *)context; A_STATUS status = A_OK; AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("%s: power change event callback %d \n", __func__, config)); switch (config) { case HIF_DEVICE_POWER_UP: ar6000_restart_endpoint(ar->arNetDev); status = A_OK; break; case HIF_DEVICE_POWER_DOWN: case HIF_DEVICE_POWER_CUT: status = A_OK; break; } return status; } static int ar6000_pm_probe(struct platform_device *pdev) { plat_setup_power(1,1); return 0; } static int ar6000_pm_remove(struct platform_device *pdev) { plat_setup_power(0,1); return 0; } static int ar6000_pm_suspend(struct platform_device *pdev, pm_message_t state) { return 0; } static int ar6000_pm_resume(struct platform_device *pdev) { return 0; } static struct platform_driver ar6000_pm_device = { .probe = ar6000_pm_probe, .remove = ar6000_pm_remove, .suspend = ar6000_pm_suspend, .resume = ar6000_pm_resume, .driver = { .name = "wlan_ar6000_pm", }, }; #endif /* CONFIG_PM */ A_STATUS ar6000_setup_cut_power_state(struct ar6_softc *ar, AR6000_WLAN_STATE state) { A_STATUS status = A_OK; HIF_DEVICE_POWER_CHANGE_TYPE config; AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("%s: Cut power %d %d \n", __func__,state, ar->arWlanPowerState)); #ifdef CONFIG_PM AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("Wlan OFF %d BT OFf %d \n", ar->arWlanOff, ar->arBTOff)); #endif do { if (state == WLAN_ENABLED) { /* Not in cut power state.. exit */ if (ar->arWlanPowerState != WLAN_POWER_STATE_CUT_PWR) { break; } plat_setup_power(1,0); /* Change the state to ON */ ar->arWlanPowerState = WLAN_POWER_STATE_ON; /* Indicate POWER_UP to HIF */ config = HIF_DEVICE_POWER_UP; status = HIFConfigureDevice(ar->arHifDevice, HIF_DEVICE_POWER_STATE_CHANGE, &config, sizeof(HIF_DEVICE_POWER_CHANGE_TYPE)); if (status == A_PENDING) { #ifdef ANDROID_ENV /* Wait for WMI ready event */ A_UINT32 timeleft = wait_event_interruptible_timeout(arEvent, (ar->arWmiReady == TRUE), wmitimeout * HZ); if (!timeleft || signal_pending(current)) { AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("ar6000 : Failed to get wmi ready \n")); status = A_ERROR; break; } #endif status = A_OK; } else if (status == A_OK) { ar6000_restart_endpoint(ar->arNetDev); status = A_OK; } } else if (state == WLAN_DISABLED) { /* Already in cut power state.. exit */ if (ar->arWlanPowerState == WLAN_POWER_STATE_CUT_PWR) { break; } ar6000_stop_endpoint(ar->arNetDev, TRUE, FALSE); config = HIF_DEVICE_POWER_CUT; status = HIFConfigureDevice(ar->arHifDevice, HIF_DEVICE_POWER_STATE_CHANGE, &config, sizeof(HIF_DEVICE_POWER_CHANGE_TYPE)); plat_setup_power(0,0); ar->arWlanPowerState = WLAN_POWER_STATE_CUT_PWR; } } while (0); return status; } A_STATUS ar6000_setup_deep_sleep_state(struct ar6_softc *ar, AR6000_WLAN_STATE state) { A_STATUS status = A_OK; AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("%s: Deep sleep %d %d \n", __func__,state, ar->arWlanPowerState)); #ifdef CONFIG_PM AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("Wlan OFF %d BT OFf %d \n", ar->arWlanOff, ar->arBTOff)); #endif do { WMI_SET_HOST_SLEEP_MODE_CMD hostSleepMode; if (state == WLAN_ENABLED) { A_UINT16 fg_start_period; /* Not in deep sleep state.. exit */ if (ar->arWlanPowerState != WLAN_POWER_STATE_DEEP_SLEEP) { if (ar->arWlanPowerState != WLAN_POWER_STATE_ON) { AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Strange state when we resume from deep sleep %d\n", ar->arWlanPowerState)); } break; } fg_start_period = (ar->scParams.fg_start_period==0) ? 1 : ar->scParams.fg_start_period; hostSleepMode.awake = TRUE; hostSleepMode.asleep = FALSE; if ((status=wmi_set_host_sleep_mode_cmd(ar->arWmi, &hostSleepMode)) != A_OK) { break; } /* Change the state to ON */ ar->arWlanPowerState = WLAN_POWER_STATE_ON; /* Enable foreground scanning */ if ((status=wmi_scanparams_cmd(ar->arWmi, fg_start_period, ar->scParams.fg_end_period, ar->scParams.bg_period, ar->scParams.minact_chdwell_time, ar->scParams.maxact_chdwell_time, ar->scParams.pas_chdwell_time, ar->scParams.shortScanRatio, ar->scParams.scanCtrlFlags, ar->scParams.max_dfsch_act_time, ar->scParams.maxact_scan_per_ssid)) != A_OK) { break; } if (ar->arNetworkType != AP_NETWORK) { if (ar->arSsidLen) { if (ar6000_connect_to_ap(ar) != A_OK) { /* no need to report error if connection failed */ break; } } } } else if (state == WLAN_DISABLED){ WMI_SET_WOW_MODE_CMD wowMode = { .enable_wow = FALSE }; /* Already in deep sleep state.. exit */ if (ar->arWlanPowerState != WLAN_POWER_STATE_ON) { if (ar->arWlanPowerState != WLAN_POWER_STATE_DEEP_SLEEP) { AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Strange state when we suspend for deep sleep %d\n", ar->arWlanPowerState)); } break; } if (ar->arNetworkType != AP_NETWORK) { /* Disconnect from the AP and disable foreground scanning */ AR6000_SPIN_LOCK(&ar->arLock, 0); if (ar->arConnected == TRUE || ar->arConnectPending == TRUE) { AR6000_SPIN_UNLOCK(&ar->arLock, 0); wmi_disconnect_cmd(ar->arWmi); } else { AR6000_SPIN_UNLOCK(&ar->arLock, 0); } } ar->scan_triggered = 0; if ((status=wmi_scanparams_cmd(ar->arWmi, 0xFFFF, 0, 0, 0, 0, 0, 0, 0, 0, 0)) != A_OK) { break; } /* make sure we disable wow for deep sleep */ if ((status=wmi_set_wow_mode_cmd(ar->arWmi, &wowMode))!=A_OK) { break; } ar6000_TxDataCleanup(ar); #ifndef ATH6K_CONFIG_OTA_MODE wmi_powermode_cmd(ar->arWmi, REC_POWER); #endif hostSleepMode.awake = FALSE; hostSleepMode.asleep = TRUE; if ((status=wmi_set_host_sleep_mode_cmd(ar->arWmi, &hostSleepMode))!=A_OK) { break; } if (ar->arTxPending[ar->arControlEp]) { A_UINT32 timeleft = wait_event_interruptible_timeout(arEvent, ar->arTxPending[ar->arControlEp] == 0, wmitimeout * HZ); if (!timeleft || signal_pending(current)) { status = A_ERROR; break; } } status = hifWaitForPendingRecv(ar->arHifDevice); ar->arWlanPowerState = WLAN_POWER_STATE_DEEP_SLEEP; } } while (0); if (status!=A_OK) { AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("Fail to enter/exit deep sleep %d\n", state)); } return status; } A_STATUS ar6000_update_wlan_pwr_state(struct ar6_softc *ar, AR6000_WLAN_STATE state, A_BOOL pmEvent) { A_STATUS status = A_OK; A_UINT16 powerState, oldPowerState; AR6000_WLAN_STATE oldstate = ar->arWlanState; A_BOOL wlanOff = ar->arWlanOff; #ifdef CONFIG_PM A_BOOL btOff = ar->arBTOff; #endif /* CONFIG_PM */ if ((state!=WLAN_DISABLED && state!=WLAN_ENABLED)) { return A_ERROR; } if (ar->bIsDestroyProgress) { return A_EBUSY; } if (down_interruptible(&ar->arSem)) { return A_ERROR; } if (ar->bIsDestroyProgress) { up(&ar->arSem); return A_EBUSY; } ar->arWlanState = wlanOff ? WLAN_DISABLED : state; oldPowerState = ar->arWlanPowerState; if (state == WLAN_ENABLED) { powerState = ar->arWlanPowerState; AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("WLAN PWR set to ENABLE^^\n")); if (!wlanOff) { if (powerState == WLAN_POWER_STATE_DEEP_SLEEP) { status = ar6000_setup_deep_sleep_state(ar, WLAN_ENABLED); } else if (powerState == WLAN_POWER_STATE_CUT_PWR) { status = ar6000_setup_cut_power_state(ar, WLAN_ENABLED); } } #ifdef CONFIG_PM else if (pmEvent && wlanOff) { A_BOOL allowCutPwr = ((!ar->arBTSharing) || btOff); if ((powerState==WLAN_POWER_STATE_CUT_PWR) && (!allowCutPwr)) { /* Come out of cut power */ ar6000_setup_cut_power_state(ar, WLAN_ENABLED); status = ar6000_setup_deep_sleep_state(ar, WLAN_DISABLED); } } #endif /* CONFIG_PM */ } else if (state == WLAN_DISABLED) { AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("WLAN PWR set to DISABLED~\n")); powerState = WLAN_POWER_STATE_DEEP_SLEEP; #ifdef CONFIG_PM if (pmEvent) { /* disable due to suspend */ A_BOOL suspendCutPwr = (ar->arSuspendConfig == WLAN_SUSPEND_CUT_PWR || (ar->arSuspendConfig == WLAN_SUSPEND_WOW && ar->arWow2Config==WLAN_SUSPEND_CUT_PWR)); A_BOOL suspendCutIfBtOff = ((ar->arSuspendConfig == WLAN_SUSPEND_CUT_PWR_IF_BT_OFF || (ar->arSuspendConfig == WLAN_SUSPEND_WOW && ar->arWow2Config==WLAN_SUSPEND_CUT_PWR_IF_BT_OFF)) && (!ar->arBTSharing || btOff)); if ((suspendCutPwr) || (suspendCutIfBtOff) || (ar->arWlanState==WLAN_POWER_STATE_CUT_PWR)) { powerState = WLAN_POWER_STATE_CUT_PWR; } } else { if ((wlanOff) && (ar->arWlanOffConfig == WLAN_OFF_CUT_PWR) && (!ar->arBTSharing || btOff)) { /* For BT clock sharing designs, CUT_POWER depend on BT state */ powerState = WLAN_POWER_STATE_CUT_PWR; } } #endif /* CONFIG_PM */ if (powerState == WLAN_POWER_STATE_DEEP_SLEEP) { if (ar->arWlanPowerState == WLAN_POWER_STATE_CUT_PWR) { AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("Load firmware before set to deep sleep\n")); ar6000_setup_cut_power_state(ar, WLAN_ENABLED); } status = ar6000_setup_deep_sleep_state(ar, WLAN_DISABLED); } else if (powerState == WLAN_POWER_STATE_CUT_PWR) { status = ar6000_setup_cut_power_state(ar, WLAN_DISABLED); } } if (status!=A_OK) { AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("Fail to setup WLAN state %d\n", ar->arWlanState)); ar->arWlanState = oldstate; } else if (status == A_OK) { WMI_REPORT_SLEEP_STATE_EVENT wmiSleepEvent, *pSleepEvent = NULL; if ((ar->arWlanPowerState == WLAN_POWER_STATE_ON) && (oldPowerState != WLAN_POWER_STATE_ON)) { wmiSleepEvent.sleepState = WMI_REPORT_SLEEP_STATUS_IS_AWAKE; pSleepEvent = &wmiSleepEvent; } else if ((ar->arWlanPowerState != WLAN_POWER_STATE_ON) && (oldPowerState == WLAN_POWER_STATE_ON)) { wmiSleepEvent.sleepState = WMI_REPORT_SLEEP_STATUS_IS_DEEP_SLEEP; pSleepEvent = &wmiSleepEvent; } if (pSleepEvent) { AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("SENT WLAN Sleep Event %d\n", wmiSleepEvent.sleepState)); ar6000_send_event_to_app(ar, WMI_REPORT_SLEEP_STATE_EVENTID, (A_UINT8*)pSleepEvent, sizeof(WMI_REPORT_SLEEP_STATE_EVENTID)); } } up(&ar->arSem); return status; } A_STATUS ar6000_set_bt_hw_state(struct ar6_softc *ar, A_UINT32 enable) { #ifdef CONFIG_PM A_BOOL off = (enable == 0); A_STATUS status; if (ar->arBTOff == off) { return A_OK; } ar->arBTOff = off; status = ar6000_update_wlan_pwr_state(ar, ar->arWlanOff ? WLAN_DISABLED : WLAN_ENABLED, FALSE); return status; #else return A_OK; #endif } A_STATUS ar6000_set_wlan_state(struct ar6_softc *ar, AR6000_WLAN_STATE state) { A_STATUS status; A_BOOL off = (state == WLAN_DISABLED); if (ar->arWlanOff == off) { return A_OK; } ar->arWlanOff = off; status = ar6000_update_wlan_pwr_state(ar, state, FALSE); return status; } void ar6000_pm_init() { A_REGISTER_MODULE_DEBUG_INFO(pm); #ifdef CONFIG_PM #ifdef CONFIG_HAS_WAKELOCK wake_lock_init(&ar6k_suspend_wake_lock, WAKE_LOCK_SUSPEND, "ar6k_suspend"); wake_lock_init(&ar6k_wow_wake_lock, WAKE_LOCK_SUSPEND, "ar6k_wow"); #endif /* * Register ar6000_pm_device into system. * We should also add platform_device into the first item of array * of devices[] in file arch/xxx/mach-xxx/board-xxxx.c */ if (platform_driver_register(&ar6000_pm_device)) { AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("ar6000: fail to register the power control driver.\n")); } #endif /* CONFIG_PM */ } void ar6000_pm_exit() { #ifdef CONFIG_PM platform_driver_unregister(&ar6000_pm_device); #ifdef CONFIG_HAS_WAKELOCK wake_lock_destroy(&ar6k_suspend_wake_lock); wake_lock_destroy(&ar6k_wow_wake_lock); #endif #endif /* CONFIG_PM */ }