From d8d243e1c172592174d7130c5a34d730693a7da2 Mon Sep 17 00:00:00 2001
From: OwenLiu <oliu@qca.qualcomm.com>
Date: Thu, 30 Oct 2014 09:11:06 +0800
Subject: qcacld: sdio HIF: add the support for WOW

Like HIF PCIe/USB, in HIF suspend callback, if wow mode is selected
in WMA, then send WMI_WOW_ENABLE_CMDID to the target to enable WOW.
In resume callback, send WMI_WOW_HOSTWAKEUP_FROM_SLEEP_CMDID to the
target.

Change-Id: I4de1dcfc8736ba33ddcef29116d7319d6fd03e62
CRs-Fixed: 748025
---
 CORE/SERVICES/HIF/sdio/linux/native_sdio/src/hif.c | 48 +++++++++++++++++++++-
 1 file changed, 47 insertions(+), 1 deletion(-)

diff --git a/CORE/SERVICES/HIF/sdio/linux/native_sdio/src/hif.c b/CORE/SERVICES/HIF/sdio/linux/native_sdio/src/hif.c
index aa96189976fc..8ecc72882d54 100644
--- a/CORE/SERVICES/HIF/sdio/linux/native_sdio/src/hif.c
+++ b/CORE/SERVICES/HIF/sdio/linux/native_sdio/src/hif.c
@@ -35,6 +35,8 @@
 #include <linux/kthread.h>
 #include "if_ath_sdio.h"
 #include "regtable.h"
+#include "vos_api.h"
+#include "wma_api.h"
 
 /* by default setup a bounce buffer for the data packets, if the underlying host controller driver
    does not use DMA you may be able to skip this step and save the memory allocation and transfer time */
@@ -1802,6 +1804,24 @@ static int hifDeviceSuspend(struct device *dev)
 #endif
 
     HIF_DEVICE *device = getHifDevice(func);
+    void *vos = vos_get_global_context(VOS_MODULE_ID_HIF, NULL);
+    v_VOID_t *temp_module;
+
+    if (vos_is_logp_in_progress(VOS_MODULE_ID_HIF, NULL)) {
+        AR_DEBUG_PRINTF(ATH_DEBUG_ERROR, ("%s: LOPG in progress\n", __func__));
+        return (-1);
+    }
+
+    temp_module = vos_get_context(VOS_MODULE_ID_WDA, vos);
+    if (!temp_module) {
+        AR_DEBUG_PRINTF(ATH_DEBUG_ERROR, ("%s: WDA module is NULL\n", __func__));
+        return (-1);
+    }
+
+    if (wma_check_scan_in_progress(temp_module)) {
+        AR_DEBUG_PRINTF(ATH_DEBUG_ERROR, ("%s: Scan in progress. Aborting suspend\n", __func__));
+        return (-1);
+    }
 
 #if defined(MMC_PM_KEEP_POWER) || (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
     if (device && device->func) {
@@ -1859,7 +1879,13 @@ static int hifDeviceSuspend(struct device *dev)
                 return ret;
             }
 
-            /* TODO:WOW support */
+            if (wma_is_wow_mode_selected(temp_module)) {
+                if (wma_enable_wow_in_fw(temp_module)) {
+                    AR_DEBUG_PRINTF(ATH_DEBUG_ERROR, ("wow mode failure\n"));
+                    return -1;
+                }
+            }
+
             if (pm_flag & MMC_PM_WAKE_SDIO_IRQ){
                 AR_DEBUG_PRINTF(ATH_DEBUG_INFO, ("hifDeviceSuspend: wow enter\n"));
                 config = HIF_DEVICE_POWER_DOWN;
@@ -1936,6 +1962,17 @@ static int hifDeviceResume(struct device *dev)
     A_STATUS status = A_OK;
     HIF_DEVICE_POWER_CHANGE_TYPE  config;
     HIF_DEVICE *device;
+    void *vos = vos_get_global_context(VOS_MODULE_ID_HIF, NULL);
+    v_VOID_t * temp_module;
+
+    if (vos == NULL)
+        return 0;
+
+    temp_module = vos_get_context(VOS_MODULE_ID_WDA, vos);
+    if (!temp_module) {
+        AR_DEBUG_PRINTF(ATH_DEBUG_ERROR, ("%s: WDA module is NULL\n", __func__));
+        return (-1);
+    }
 
     device = getHifDevice(func);
 
@@ -1970,6 +2007,15 @@ static int hifDeviceResume(struct device *dev)
         status = osdrvCallbacks.deviceResumeHandler(device->claimedContext);
         device->is_suspend = FALSE;
     }
+
+    /* No need to send WMI_PDEV_RESUME_CMDID to FW if WOW is enabled */
+    if (!wma_is_wow_mode_selected(temp_module)) {
+        wma_resume_target(temp_module);
+    } else if (wma_disable_wow_in_fw(temp_module)) {
+        AR_DEBUG_PRINTF(ATH_DEBUG_ERROR, ("%s: disable wow in fw failed\n", __func__));
+        status = (-1);
+    }
+
     AR_DEBUG_PRINTF(ATH_DEBUG_TRACE, ("AR6000: -hifDeviceResume\n"));
     device->DeviceState = HIF_DEVICE_STATE_ON;
 
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