/**
* \fn context_EnableClient / context_DisableClient
* \brief Enable a specific client activation
*
* Called by the driver main when needed to enble/disable a specific event handling.
* The Enable function also schedules the driver-task if the specified client is pending.
*
* \note
* \param hContext - The module handle
* \param uClientId - The client's index
* \return void
* \sa context_DriverTask
*/
void context_EnableClient (TI_HANDLE hContext, TI_UINT32 uClientId)
{
TContext *pContext = (TContext *)hContext;
#ifdef TI_DBG
if (pContext->aClientEnabled[uClientId])
{
TRACE0(pContext->hReport, REPORT_SEVERITY_ERROR , "context_EnableClient() Client already enabled!!\n");
return;
}
TRACE3(pContext->hReport, REPORT_SEVERITY_INFORMATION , "context_EnableClient(): Client=, ID=%d, enabled=%d, pending=%d\n", uClientId, pContext->aClientEnabled[uClientId], pContext->aClientPending[uClientId]);
#endif /* TI_DBG */
/* Enable client */
pContext->aClientEnabled[uClientId] = TI_TRUE;
/* If client is pending, schedule driver task */
if (pContext->aClientPending[uClientId])
{
/*
* If configured to switch context, request driver task scheduling.
* Else (context switch not required) call the driver task directly.
*/
if (pContext->bContextSwitchRequired)
{
os_RequestSchedule (pContext->hOs);
}
else
{
context_DriverTask (hContext);
}
}
}
/**
* \fn context_RequestSchedule
* \brief Handle client's switch to driver's context.
*
* This function is called by a client from external context event.
* It sets the client's Pending flag and requests the driver's task scheduling.
* Thus, the client's callback will be called afterwards from the driver context.
*
* \note
* \param hContext - The module handle
* \param uClientId - The client's index
* \return void
* \sa context_DriverTask
*/
void context_RequestSchedule (TI_HANDLE hContext, TI_UINT32 uClientId)
{
TContext *pContext = (TContext *)hContext;
#ifdef TI_DBG
pContext->aRequestCount[uClientId]++;
TRACE3(pContext->hReport, REPORT_SEVERITY_INFORMATION , "context_RequestSchedule(): Client=, ID=%d, enabled=%d, pending=%d\n", uClientId, pContext->aClientEnabled[uClientId], pContext->aClientPending[uClientId]);
#endif /* TI_DBG */
/* Set client's Pending flag */
pContext->aClientPending[uClientId] = TI_TRUE;
/*
* If configured to switch context, request driver task scheduling.
* Else (context switch not required) call the driver task directly.
*/
if (pContext->bContextSwitchRequired)
{
os_RequestSchedule (pContext->hOs);
}
else
{
context_DriverTask (hContext);
}
}
/**
* \fn context_EnableClient / context_DisableClient
* \brief Enable a specific client activation
*
* Called by the driver main when needed to enble/disable a specific event handling.
* The Enable function also schedules the driver-task if the specified client is pending.
*
* \note
* \param hContext - The module handle
* \param uClientId - The client's index
* \return void
* \sa context_DriverTask
*/
void context_EnableClient (TI_HANDLE hContext, TI_UINT32 uClientId)
{
TContext *pContext = (TContext *)hContext;
#ifdef TI_DBG
if (pContext->aClientEnabled[uClientId]) {
return;
}
#endif /* TI_DBG */
/* Enable client */
pContext->aClientEnabled[uClientId] = TI_TRUE;
/* If client is pending, schedule driver task */
if (pContext->aClientPending[uClientId]) {
/*
* If configured to switch context, request driver task scheduling.
* Else (context switch not required) call the driver task directly.
*/
if (pContext->bContextSwitchRequired) {
os_RequestSchedule (pContext->hOs);
} else {
context_DriverTask (hContext);
}
}
}
static void wlanDrvIf_DriverTask (void *hDrv)
{
TWlanDrvIfObj *drv = (TWlanDrvIfObj *)hDrv;
#else
static void wlanDrvIf_DriverTask(struct work_struct *work)
{
TWlanDrvIfObj *drv = container_of(work, TWlanDrvIfObj, tWork);
#endif
#ifdef STACK_PROFILE
unsigned int curr1,base1;
unsigned int curr2,base2;
static unsigned int maximum_stack = 0;
#endif
TI_BOOL bShouldLock;
os_profile (drv, 0, 0);
#ifdef STACK_PROFILE
curr1 = check_stack_start(&base1);
#endif
/* we must read the value first here */
bShouldLock = ! context_IsSuspending(pDrvStaticHandle->tCommon.hContext);
/* Call the driver main task */
context_DriverTask (drv->tCommon.hContext);
if (bShouldLock)
{
os_wake_lock_timeout(drv);
os_wake_unlock(drv);
}
#ifdef STACK_PROFILE
curr2 = check_stack_stop(&base2);
if (base2 == base1)
{
/* if the current measurement is bigger then the maximum store it and print*/
if ((curr1 - curr2) > maximum_stack)
{
printk("STACK PROFILER GOT THE LOCAL MAXIMMUM!!!! \n");
printk("current operation stack use =%d \n",(curr1 - curr2));
printk("total stack use=%d \n",8192 - curr2 + base2);
printk("total stack usage= %d percent \n",100 * (8192 - curr2 + base2) / 8192);
maximum_stack = curr1 - curr2;
}
}
#endif
os_profile (drv, 1, 0);
}
/**
* \fn context_RequestSchedule
* \brief Handle client's switch to driver's context.
*
* This function is called by a client from external context event.
* It sets the client's Pending flag and requests the driver's task scheduling.
* Thus, the client's callback will be called afterwards from the driver context.
*
* \note
* \param hContext - The module handle
* \param uClientId - The client's index
* \return void
* \sa context_DriverTask
*/
void context_RequestSchedule (TI_HANDLE hContext, TI_UINT32 uClientId)
{
TContext *pContext = (TContext *)hContext;
#ifdef TI_DBG
pContext->aRequestCount[uClientId]++;
#endif /* TI_DBG */
/* Set client's Pending flag */
pContext->aClientPending[uClientId] = TI_TRUE;
/*
* If configured to switch context, request driver task scheduling.
* Else (context switch not required) call the driver task directly.
*/
if (pContext->bContextSwitchRequired) {
os_RequestSchedule (pContext->hOs);
} else {
context_DriverTask (hContext);
}
}
static void wlanDrvIf_DriverTask (void *hDrv)
{
TWlanDrvIfObj *drv = (TWlanDrvIfObj *)hDrv;
#else
static void wlanDrvIf_DriverTask(struct work_struct *work)
{
#ifdef STACK_PROFILE
register unsigned long sp asm ("sp");
unsigned long local_sp = sp;
#endif
TWlanDrvIfObj *drv = container_of(work, TWlanDrvIfObj, tWork);
#endif
#ifdef STACK_PROFILE
unsigned long curr1, base1;
unsigned long curr2, base2;
static unsigned long maximum_stack = 0;
#endif
os_profile (drv, 0, 0);
#ifdef STACK_PROFILE
curr1 = check_stack_start(&base1, local_sp + 4, 0);
#endif
/* Call the driver main task */
context_DriverTask (drv->tCommon.hContext);
os_profile (drv, 1, 0);
os_wake_lock_timeout(drv);
os_wake_unlock(drv);
#ifdef STACK_PROFILE
curr2 = check_stack_stop(&base2, 0);
if (base2 == base1) {
/* if the current measurement is bigger then the maximum store it and print*/
if ((curr1 - curr2) > maximum_stack) {
printk("STACK PROFILER GOT THE LOCAL MAXIMMUM!!!! \n");
printk("current operation stack use=%lu \n",(curr1 - curr2));
printk("total stack use=%lu \n",8192 - curr2 + base2);
printk("total stack usage=%lu percent \n",100 * (8192 - curr2 + base2) / 8192);
maximum_stack = curr1 - curr2;
}
}
#endif
}
/**
* \fn wlanDrvIf_LoadFiles
* \brief Load init files from loader
*
* This function is called from the loader context right after the driver
* is created (in IDLE state).
* It copies the following files to the driver's memory:
* - Ini-File - The driver's default parameters values
* - NVS-File - The NVS data for FW usage
* - FW-Image - The FW program image
*
* \note
* \param drv - The driver object handle
* \return void
* \sa wlanDrvIf_GetFile
*/
int wlanDrvIf_LoadFiles (TWlanDrvIfObj *drv, TLoaderFilesData *pInitFiles)
{
if (!pInitFiles)
{
ti_dprintf (TIWLAN_LOG_ERROR, "No Init Files!\n");
return -EINVAL;
}
if (drv->tCommon.eDriverState != DRV_STATE_IDLE)
{
ti_dprintf (TIWLAN_LOG_ERROR, "Trying to load files not in IDLE state!\n");
return -EINVAL;
}
if (pInitFiles->uIniFileLength)
{
drv->tCommon.tIniFile.uSize = pInitFiles->uIniFileLength;
drv->tCommon.tIniFile.pImage = kmalloc (pInitFiles->uIniFileLength, GFP_KERNEL);
#ifdef TI_MEM_ALLOC_TRACE
os_printf ("MTT:%s:%d ::kmalloc(%lu, %x) : %lu\n", __FUNCTION__, __LINE__, pInitFiles->uIniFileLength, GFP_KERNEL, pInitFiles->uIniFileLength);
#endif
if (!drv->tCommon.tIniFile.pImage)
{
ti_dprintf (TIWLAN_LOG_ERROR, "Cannot allocate buffer for Ini-File!\n");
return -ENOMEM;
}
memcpy (drv->tCommon.tIniFile.pImage,
&pInitFiles->data[pInitFiles->uNvsFileLength + pInitFiles->uFwFileLength],
drv->tCommon.tIniFile.uSize);
}
if (pInitFiles->uNvsFileLength)
{
drv->tCommon.tNvsImage.uSize = pInitFiles->uNvsFileLength;
drv->tCommon.tNvsImage.pImage = kmalloc (drv->tCommon.tNvsImage.uSize, GFP_KERNEL);
#ifdef TI_MEM_ALLOC_TRACE
os_printf ("MTT:%s:%d ::kmalloc(%lu, %x) : %lu\n",
__FUNCTION__, __LINE__, drv->tCommon.tNvsImage.uSize, GFP_KERNEL, drv->tCommon.tNvsImage.uSize);
#endif
if (!drv->tCommon.tNvsImage.pImage)
{
ti_dprintf (TIWLAN_LOG_ERROR, "Cannot allocate buffer for NVS image\n");
return -ENOMEM;
}
memcpy (drv->tCommon.tNvsImage.pImage, &pInitFiles->data[0], drv->tCommon.tNvsImage.uSize );
}
drv->tCommon.tFwImage.uSize = pInitFiles->uFwFileLength;
if (!drv->tCommon.tFwImage.uSize)
{
ti_dprintf (TIWLAN_LOG_ERROR, "No firmware image\n");
return -EINVAL;
}
drv->tCommon.tFwImage.pImage = os_memoryAlloc (drv, drv->tCommon.tFwImage.uSize);
#ifdef TI_MEM_ALLOC_TRACE
os_printf ("MTT:%s:%d ::kmalloc(%lu, %x) : %lu\n",
__FUNCTION__, __LINE__, drv->tCommon.tFwImage.uSize, GFP_KERNEL, drv->tCommon.tFwImage.uSize);
#endif
if (!drv->tCommon.tFwImage.pImage)
{
ti_dprintf(TIWLAN_LOG_ERROR, "Cannot allocate buffer for firmware image\n");
return -ENOMEM;
}
memcpy (drv->tCommon.tFwImage.pImage,
&pInitFiles->data[pInitFiles->uNvsFileLength],
drv->tCommon.tFwImage.uSize);
ti_dprintf(TIWLAN_LOG_OTHER, "--------- Eeeprom=%p(%lu), Firmware=%p(%lu), IniFile=%p(%lu)\n",
drv->tCommon.tNvsImage.pImage, drv->tCommon.tNvsImage.uSize,
drv->tCommon.tFwImage.pImage, drv->tCommon.tFwImage.uSize,
drv->tCommon.tIniFile.pImage, drv->tCommon.tIniFile.uSize);
return 0;
}
/**
* \fn wlanDrvIf_GetFile
* \brief Provides access to a requested init file
*
* Provide the requested file information and call the requester callback.
* Note that in Linux the files were previously loaded to driver memory
* by the loader (see wlanDrvIf_LoadFiles).
*
* \note
* \param hOs - The driver object handle
* \param pFileInfo - The requested file's properties
* \return TI_OK
* \sa wlanDrvIf_LoadFiles
*/
int wlanDrvIf_GetFile (TI_HANDLE hOs, TFileInfo *pFileInfo)
{
TWlanDrvIfObj *drv = (TWlanDrvIfObj *)hOs;
if (drv == NULL || pFileInfo == NULL) {
ti_dprintf(TIWLAN_LOG_ERROR, "wlanDrv_GetFile: ERROR: Null File Handler, Exiting");
return TI_NOK;
}
/* Future option for getting the FW image part by part */
pFileInfo->hOsFileDesc = NULL;
/* Fill the file's location and size in the file's info structure */
switch (pFileInfo->eFileType)
{
case FILE_TYPE_INI:
pFileInfo->pBuffer = (TI_UINT8 *)drv->tCommon.tIniFile.pImage;
pFileInfo->uLength = drv->tCommon.tIniFile.uSize;
break;
case FILE_TYPE_NVS:
pFileInfo->pBuffer = (TI_UINT8 *)drv->tCommon.tNvsImage.pImage;
pFileInfo->uLength = drv->tCommon.tNvsImage.uSize;
break;
case FILE_TYPE_FW:
if (drv->tCommon.tFwImage.pImage == NULL)
{
ti_dprintf(TIWLAN_LOG_ERROR, "wlanDrv_GetFile: ERROR: no Firmware image, exiting\n");
return TI_NOK;
}
pFileInfo->pBuffer = (TI_UINT8 *)drv->tCommon.tFwImage.pImage;
pFileInfo->bLast = TI_FALSE;
pFileInfo->uLength = 0;
pFileInfo->uOffset = 0;
pFileInfo->uChunkBytesLeft = 0;
pFileInfo->uChunksLeft = BYTE_SWAP_LONG( *((TI_UINT32*)(pFileInfo->pBuffer)) );
/* check uChunksLeft's Validity */
if (( pFileInfo->uChunksLeft == 0 ) || ( pFileInfo->uChunksLeft > MAX_CHUNKS_IN_FILE ))
{
ti_dprintf (TIWLAN_LOG_ERROR, "wlanDrvIf_GetFile() Read Invalid Chunks Left: %d!\n",pFileInfo->uChunksLeft);
return TI_NOK;
}
pFileInfo->pBuffer += DRV_ADDRESS_SIZE;
/* FALL THROUGH */
case FILE_TYPE_FW_NEXT:
/* check dec. validity */
if ( pFileInfo->uChunkBytesLeft >= pFileInfo->uLength )
{
pFileInfo->uChunkBytesLeft -= pFileInfo->uLength;
}
/* invalid Dec. */
else
{
ti_dprintf (TIWLAN_LOG_ERROR, "wlanDrvIf_GetFile() No. of Bytes Left < File Length\n");
return TI_NOK;
}
pFileInfo->pBuffer += pFileInfo->uLength;
/* Finished reading all Previous Chunk */
if ( pFileInfo->uChunkBytesLeft == 0 )
{
/* check dec. validity */
if ( pFileInfo->uChunksLeft > 0 )
{
pFileInfo->uChunksLeft--;
}
/* invalid Dec. */
else
{
ti_dprintf (TIWLAN_LOG_ERROR, "No. of Bytes Left = 0 and Chunks Left <= 0\n");
return TI_NOK;
}
/* read Chunk's address */
pFileInfo->uAddress = BYTE_SWAP_LONG( *((TI_UINT32*)(pFileInfo->pBuffer)) );
pFileInfo->pBuffer += DRV_ADDRESS_SIZE;
/* read Portion's length */
pFileInfo->uChunkBytesLeft = BYTE_SWAP_LONG( *((TI_UINT32*)(pFileInfo->pBuffer)) );
pFileInfo->pBuffer += DRV_ADDRESS_SIZE;
}
/* Reading Chunk is NOT complete */
else
{
pFileInfo->uAddress += pFileInfo->uLength;
}
if ( pFileInfo->uChunkBytesLeft < OS_SPECIFIC_RAM_ALLOC_LIMIT )
{
pFileInfo->uLength = pFileInfo->uChunkBytesLeft;
}
else
{
pFileInfo->uLength = OS_SPECIFIC_RAM_ALLOC_LIMIT;
}
/* If last chunk to download */
if (( pFileInfo->uChunksLeft == 0 ) &&
( pFileInfo->uLength == pFileInfo->uChunkBytesLeft ))
{
pFileInfo->bLast = TI_TRUE;
}
break;
}
/* Call the requester callback */
if (pFileInfo->fCbFunc)
{
pFileInfo->fCbFunc (pFileInfo->hCbHndl);
}
return TI_OK;
}
