/**
* \fn wlanDrvIf_Destroy
* \brief Destroy the driver instance
*
* Destroy all driver modules.
* Release driver OS resources (IRQ, workqueue, events socket)
* Release driver network interface.
* Free init files memory.
* Free driver object.
*
* \note
* \param drv - The driver object handle
* \return void
* \sa wlanDrvIf_Create
*/
static void wlanDrvIf_Destroy (TWlanDrvIfObj *drv)
{
if (!drv)
return;
/* Release the driver network interface */
if (drv->netdev)
{
netif_stop_queue (drv->netdev);
if (drv->tCommon.eDriverState != DRV_STATE_IDLE)
{
wlanDrvIf_Stop (drv->netdev);
}
unregister_netdev (drv->netdev);
free_netdev (drv->netdev);
}
destroy_workqueue (drv->pWorkQueue);
/* Destroy all driver modules */
if (drv->tCommon.hDrvMain)
{
drvMain_Destroy (drv->tCommon.hDrvMain);
}
/* close the ipc_kernel socket*/
if (drv && drv->wl_sock)
{
sock_release (drv->wl_sock->sk_socket);
}
/* Release the driver interrupt (or polling timer) */
#ifdef PRIODIC_INTERRUPT
os_timerDestroy (drv, drv->hPollTimer);
#else
if (drv->irq)
{
hPlatform_freeInterrupt (drv);
}
#endif
#ifdef CONFIG_HAS_WAKELOCK
wake_lock_destroy(&drv->wl_wifi);
wake_lock_destroy(&drv->wl_rxwake);
#endif
/*
* Free init files memory
*/
if (drv->tCommon.tFwImage.pImage)
{
os_memoryFree (drv, drv->tCommon.tFwImage.pImage, drv->tCommon.tFwImage.uSize);
#ifdef TI_MEM_ALLOC_TRACE
os_printf ("MTT:%s:%d ::kfree(0x%p) : %d\n",
__FUNCTION__, __LINE__, drv->tCommon.tFwImage.uSize, -drv->tCommon.tFwImage.uSize);
#endif
}
if (drv->tCommon.tNvsImage.pImage)
{
kfree (drv->tCommon.tNvsImage.pImage);
#ifdef TI_MEM_ALLOC_TRACE
os_printf ("MTT:%s:%d ::kfree(0x%p) : %d\n",
__FUNCTION__, __LINE__, drv->tCommon.tNvsImage.uSize, -drv->tCommon.tNvsImage.uSize);
#endif
}
if (drv->tCommon.tIniFile.pImage)
{
kfree (drv->tCommon.tIniFile.pImage);
#ifdef TI_MEM_ALLOC_TRACE
os_printf ("MTT:%s:%d ::kfree(0x%p) : %d\n",
__FUNCTION__, __LINE__, drv->tCommon.tIniFile.uSize, -drv->tCommon.tIniFile.uSize);
#endif
}
/* Free the driver object */
#ifdef TI_DBG
tb_destroy();
#endif
kfree (drv);
#ifdef CONFIG_PM
/* unregister PM hooks from SDIO driver */
sdioDrv_register_pm(NULL, NULL);
#endif
}
/**
* \fn wlanDrvIf_SetupNetif
* \brief Setup driver network interface
*
* Called in driver creation process.
* Setup driver network interface.
*
* \note
* \param drv - The driver object handle
* \return 0 - OK, else - failure
* \sa
*/
static int wlanDrvIf_SetupNetif (TWlanDrvIfObj *drv)
{
struct net_device *dev;
int res;
/* Allocate network interface structure for the driver */
dev = alloc_etherdev (0);
if (dev == NULL)
{
ti_dprintf (TIWLAN_LOG_ERROR, "alloc_etherdev() failed\n");
return -ENOMEM;
}
/* Setup the network interface */
ether_setup (dev);
/* the following is required on at least BSP 23.8 and higher.
Without it, the Open function of the driver will not be called
when trying to 'ifconfig up' the interface */
//#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,23)
// dev->validate_addr = NULL;
//#endif
NETDEV_SET_PRIVATE(dev,drv);
drv->netdev = dev;
strcpy (dev->name, TIWLAN_DRV_IF_NAME);
netif_carrier_off (dev);
/*
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,29)
dev->open = wlanDrvIf_Start;
dev->stop = wlanDrvIf_Stop;
#else
dev->open = wlanDrvIf_Open;
dev->stop = wlanDrvIf_Release;
#endif
*/
/*dev->hard_start_xmit = wlanDrvIf_XmitDummy;*/
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29)
dev->netdev_ops = &tiwlan_netdev_ops;
#else
dev->open = wlanDrvIf_Start;
dev->stop = wlanDrvIf_Stop;
dev->hard_start_xmit = wlanDrvIf_Xmit;
dev->addr_len = MAC_ADDR_LEN;
dev->get_stats = wlanDrvIf_NetGetStat;
dev->tx_queue_len = 100;
dev->do_ioctl = NULL;
#endif
/* Initialize Wireless Extensions interface (WEXT) */
wlanDrvWext_Init (dev);
res = register_netdev (dev);
if (res != 0)
{
ti_dprintf (TIWLAN_LOG_ERROR, "register_netdev() failed : %d\n", res);
kfree (dev);
return res;
}
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,29)
#if defined HOST_PLATFORM_OMAP3430 || defined HOST_PLATFORM_ZOOM2 || defined HOST_PLATFORM_ZOOM1 || defined HOST_PLATFORM_MX25
sdioDrv_register_pm(wlanDrvIf_pm_resume, wlanDrvIf_pm_suspend);
#endif
#else
#ifdef CONFIG_PM
sdioDrv_register_pm(wlanDrvIf_pm_resume, wlanDrvIf_pm_suspend);
#endif
#endif
/*
On the latest Kernel there is no more support for the below macro.
*/
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)
SET_MODULE_OWNER (dev);
#endif
return 0;
}
/**
* \fn wlanDrvIf_Create
* \brief Create the driver instance
*
* Allocate driver object.
* Initialize driver OS resources (IRQ, workqueue, events socket)
* Setup driver network interface.
* Create and link all driver modules.
*
* \note
* \param void
* \return 0 - OK, else - failure
* \sa wlanDrvIf_Destroy
*/
static int wlanDrvIf_Create (void)
{
TWlanDrvIfObj *drv;
int rc;
/* Allocate driver's structure */
drv = kmalloc (sizeof(TWlanDrvIfObj), GFP_KERNEL);
if (!drv)
{
return -ENOMEM;
}
#ifdef TI_DBG
tb_init(TB_OPTION_NONE);
#endif
pDrvStaticHandle = drv; /* save for module destroy */
#ifdef TI_MEM_ALLOC_TRACE
os_printf ("MTT:%s:%d ::kmalloc(%lu, %x) : %lu\n", __FUNCTION__, __LINE__, sizeof(TWlanDrvIfObj), GFP_KERNEL, sizeof(TWlanDrvIfObj));
#endif
memset (drv, 0, sizeof(TWlanDrvIfObj));
drv->tCommon.eDriverState = DRV_STATE_IDLE;
drv->pWorkQueue = create_singlethread_workqueue(TIWLAN_WQ_NAME);
if (!drv->pWorkQueue)
{
return -ENOMEM;
}
drv->wl_packet = 0;
drv->wl_count = 0;
#ifdef CONFIG_HAS_WAKELOCK
wake_lock_init(&drv->wl_wifi, WAKE_LOCK_SUSPEND, "wifi_wake");
wake_lock_init(&drv->wl_rxwake, WAKE_LOCK_SUSPEND, "wifi_rx_wake");
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23)
INIT_WORK(&drv->tWork, wlanDrvIf_DriverTask, (void *)drv);
#else
INIT_WORK(&drv->tWork, wlanDrvIf_DriverTask);
#endif
spin_lock_init (&drv->lock);
/* Setup driver network interface. */
rc = wlanDrvIf_SetupNetif (drv);
if (rc)
{
kfree (drv);
return rc;
}
/* Create the events socket interface */
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23)
drv->wl_sock = netlink_kernel_create( NETLINK_USERSOCK, 0, NULL, THIS_MODULE );
#else
drv->wl_sock = netlink_kernel_create(&init_net, NETLINK_USERSOCK, 0, NULL, NULL, THIS_MODULE );
#endif
if (drv->wl_sock == NULL)
{
ti_dprintf (TIWLAN_LOG_ERROR, "netlink_kernel_create() failed !\n");
return -EINVAL;
}
/* Create all driver modules and link their handles */
drvMain_Create (drv,
&drv->tCommon.hDrvMain,
&drv->tCommon.hCmdHndlr,
&drv->tCommon.hContext,
&drv->tCommon.hTxDataQ,
&drv->tCommon.hTxMgmtQ,
&drv->tCommon.hTxCtrl,
&drv->tCommon.hTWD,
&drv->tCommon.hEvHandler,
&drv->tCommon.hCmdDispatch,
&drv->tCommon.hReport);
/*
* Initialize interrupts (or polling mode for debug):
*/
#ifdef PRIODIC_INTERRUPT
/* Debug mode: Polling (the timer is started by HwInit process) */
drv->hPollTimer = os_timerCreate ((TI_HANDLE)drv, wlanDrvIf_PollIrqHandler, (TI_HANDLE)drv);
#else
/* Normal mode: Interrupts (the default mode) */
rc = hPlatform_initInterrupt (drv, (void*)wlanDrvIf_HandleInterrupt);
if (rc)
{
ti_dprintf (TIWLAN_LOG_ERROR, "wlanDrvIf_Create(): Failed to register interrupt handler!\n");
return rc;
}
#endif /* PRIODIC_INTERRUPT */
#ifdef CONFIG_PM
/* register PM hooks in our SDIO driver */
sdioDrv_register_pm(wlanDrvIf_Resume, wlanDrvIf_Suspend);
#endif
return 0;
}