CORE/SYS/legacy/src/pal/src/palApiComm.c

/*
 * Copyright (c) 2012-2014, 2016 The Linux Foundation. All rights reserved.
 *
 * Previously licensed under the ISC license by Qualcomm Atheros, Inc.
 *
 *
 * 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.
 */

/*
 * This file was originally distributed by Qualcomm Atheros, Inc.
 * under proprietary terms before Copyright ownership was assigned
 * to the Linux Foundation.
 */

#include <palApi.h>
#include <sirTypes.h>   // needed for tSirRetStatus
#include <vos_api.h>

#include <sirParams.h>  // needed for tSirMbMsg
#include "wlan_qct_wda.h"
#include "adf_nbuf.h"

#ifndef FEATURE_WLAN_PAL_MEM_DISABLE

#ifdef MEMORY_DEBUG
eHalStatus palAllocateMemory_debug( tHddHandle hHdd, void **ppMemory, tANI_U32 numBytes, char* fileName, tANI_U32 lineNum )
{
   eHalStatus halStatus = eHAL_STATUS_SUCCESS;

   *ppMemory = vos_mem_malloc_debug( numBytes, fileName, lineNum );

   if ( NULL == *ppMemory )
   {
      halStatus = eHAL_STATUS_FAILURE;
   }

   return( halStatus );
}
#else
eHalStatus palAllocateMemory( tHddHandle hHdd, void **ppMemory, tANI_U32 numBytes )
{
   eHalStatus halStatus = eHAL_STATUS_SUCCESS;

   *ppMemory = vos_mem_malloc( numBytes );

   if ( NULL == *ppMemory )
   {
      halStatus = eHAL_STATUS_FAILURE;
   }

   return( halStatus );
}
#endif


eHalStatus palFreeMemory( tHddHandle hHdd, void *pMemory )
{
   vos_mem_free( pMemory );

   return( eHAL_STATUS_SUCCESS );
}

eHalStatus palFillMemory( tHddHandle hHdd, void *pMemory, tANI_U32 numBytes, tANI_BYTE fillValue )
{
   vos_mem_set( pMemory, numBytes, fillValue );

   return( eHAL_STATUS_SUCCESS );
}


eHalStatus palCopyMemory( tHddHandle hHdd, void *pDst, const void *pSrc, tANI_U32 numBytes )
{
   vos_mem_copy( pDst, pSrc, numBytes );

   return( eHAL_STATUS_SUCCESS );
}



tANI_BOOLEAN palEqualMemory( tHddHandle hHdd, void *pMemory1, void *pMemory2, tANI_U32 numBytes )
{
   return( vos_mem_compare( pMemory1, pMemory2, numBytes ) );
}
#endif

#define TX_PKT_MIN_HEADROOM 64
eHalStatus palPktAlloc(tHddHandle hHdd, eFrameType frmType, tANI_U16 size,
                        void **data, void **ppPacket)
{
   eHalStatus halStatus = eHAL_STATUS_FAILURE;
   adf_nbuf_t nbuf;

   nbuf = adf_nbuf_alloc(NULL, roundup(size+TX_PKT_MIN_HEADROOM, 4),
                         TX_PKT_MIN_HEADROOM,
                         sizeof(tANI_U32), FALSE);

   if (nbuf != NULL) {
      adf_nbuf_put_tail(nbuf, size);
      adf_nbuf_set_protocol(nbuf, ETH_P_CONTROL);
      *ppPacket = nbuf;
      *data = adf_nbuf_data(nbuf);
      halStatus = eHAL_STATUS_SUCCESS;
   }

   return halStatus;
}

void palPktFree( tHddHandle hHdd, eFrameType frmType, void* buf, void *pPacket)
{
   adf_nbuf_free((adf_nbuf_t)pPacket);
}

tANI_TIMESTAMP palGetTickCount(tHddHandle hHdd)
{
   return( vos_timer_get_system_ticks() );
}


tANI_U32 pal_be32_to_cpu(tANI_U32 x)
{
   return( x );
}

tANI_U32 pal_cpu_to_be32(tANI_U32 x)
{
   return(( x ) );
}

tANI_U16 pal_be16_to_cpu(tANI_U16 x)
{
   return( ( x ) );
}

tANI_U16 pal_cpu_to_be16(tANI_U16 x)
{
   return( ( x ) );
}



eHalStatus palSpinLockAlloc( tHddHandle hHdd, tPalSpinLockHandle *pHandle )
{
   eHalStatus halStatus = eHAL_STATUS_FAILURE;
   VOS_STATUS vosStatus;
   vos_lock_t *pLock;

   do
   {
      pLock = vos_mem_malloc( sizeof( vos_lock_t ) );

      if ( NULL == pLock ) break;

      vos_mem_set(pLock, sizeof(vos_lock_t), 0);

      vosStatus = vos_lock_init( pLock );
      if ( !VOS_IS_STATUS_SUCCESS( vosStatus ) )
      {
         vos_mem_free( pLock );
         break;
      }

      *pHandle = (tPalSpinLockHandle)pLock;
      halStatus = eHAL_STATUS_SUCCESS;

   } while( 0 );

   return( halStatus );
}


eHalStatus palSpinLockFree( tHddHandle hHdd, tPalSpinLockHandle hSpinLock )
{
   eHalStatus halStatus = eHAL_STATUS_FAILURE;
   vos_lock_t *pLock = (vos_lock_t *)hSpinLock;
   VOS_STATUS vosStatus;

   vosStatus = vos_lock_destroy( pLock );
   if ( VOS_IS_STATUS_SUCCESS( vosStatus ) )
   {
      // if we successfully destroy the lock, free
      // the memory and indicate success to the caller.
      vos_mem_free( pLock );

      halStatus = eHAL_STATUS_SUCCESS;
   }
   return( halStatus );
}


eHalStatus palSpinLockTake( tHddHandle hHdd, tPalSpinLockHandle hSpinLock )
{
   eHalStatus halStatus = eHAL_STATUS_FAILURE;
   vos_lock_t *pLock = (vos_lock_t *)hSpinLock;
   VOS_STATUS vosStatus;

   vosStatus = vos_lock_acquire( pLock );
   if ( VOS_IS_STATUS_SUCCESS( vosStatus ) )
   {
      // if successfully acquire the lock, indicate success
      // to the caller.
      halStatus = eHAL_STATUS_SUCCESS;
   }

   return( halStatus );
}





eHalStatus palSpinLockGive( tHddHandle hHdd, tPalSpinLockHandle hSpinLock )
{
   eHalStatus halStatus = eHAL_STATUS_FAILURE;
   vos_lock_t *pLock = (vos_lock_t *)hSpinLock;
   VOS_STATUS vosStatus;

   vosStatus = vos_lock_release( pLock );
   if ( VOS_IS_STATUS_SUCCESS( vosStatus ) )
   {
      // if successfully acquire the lock, indicate success
      // to the caller.
      halStatus = eHAL_STATUS_SUCCESS;
   }

   return( halStatus );
}


// Caller of this function MUST dynamically allocate memory for pBuf
// because this funciton will free the memory.
eHalStatus palSendMBMessage(tHddHandle hHdd, void *pBuf)
{
   eHalStatus halStatus = eHAL_STATUS_FAILURE;
   tSirRetStatus sirStatus;
   v_CONTEXT_t vosContext;
   v_VOID_t *hHal;

   vosContext = vos_get_global_context( VOS_MODULE_ID_HDD, hHdd );
   if (NULL == vosContext)
   {
      VOS_TRACE(VOS_MODULE_ID_SYS, VOS_TRACE_LEVEL_ERROR,
                "%s: invalid vosContext", __func__);
   }
   else
   {
      hHal = vos_get_context( VOS_MODULE_ID_SME, vosContext );
      if (NULL == hHal)
      {
         VOS_TRACE(VOS_MODULE_ID_SYS, VOS_TRACE_LEVEL_ERROR,
                   "%s: invalid hHal", __func__);
      }
      else
      {
         sirStatus = uMacPostCtrlMsg( hHal, pBuf );
         if ( eSIR_SUCCESS == sirStatus )
         {
            halStatus = eHAL_STATUS_SUCCESS;
         }
      }
   }

   vos_mem_free( pBuf );

   return( halStatus );
}



//All semophore functions are no-op here
//PAL semaphore functions
//All functions MUST return success. If change needs to be made, please check all callers' logic
eHalStatus palSemaphoreAlloc( tHddHandle hHdd, tPalSemaphoreHandle *pHandle, tANI_S32 count )
{
    (void)hHdd;
    (void)pHandle;
    (void)count;
    if(pHandle)
    {
        *pHandle = NULL;
    }

    return (eHAL_STATUS_SUCCESS);
}

eHalStatus palSemaphoreFree( tHddHandle hHdd, tPalSemaphoreHandle hSemaphore )
{
    (void)hHdd;
    (void)hSemaphore;

    return (eHAL_STATUS_SUCCESS);
}

eHalStatus palSemaphoreTake( tHddHandle hHdd, tPalSemaphoreHandle hSemaphore )
{
    (void)hHdd;
    (void)hSemaphore;

    return (eHAL_STATUS_SUCCESS);
}

eHalStatus palSemaphoreGive( tHddHandle hHdd, tPalSemaphoreHandle hSemaphore )
{
    (void)hHdd;
    (void)hSemaphore;

    return (eHAL_STATUS_SUCCESS);
}

eHalStatus palMutexAlloc( tHddHandle hHdd, tPalSemaphoreHandle *pHandle)
{
    (void)hHdd;
    (void)pHandle;

    if(pHandle)
    {
        *pHandle = NULL;
    }
    return (eHAL_STATUS_SUCCESS);
}

eHalStatus palMutexAllocLocked( tHddHandle hHdd, tPalSemaphoreHandle *pHandle)
{
    (void)hHdd;
    (void)pHandle;

    if(pHandle)
    {
        *pHandle = NULL;
    }
    return (eHAL_STATUS_SUCCESS);
}


eAniBoolean pal_in_interrupt(void)
{
    return (eANI_BOOLEAN_FALSE);
}

void pal_local_bh_disable(void)
{
}

void pal_local_bh_enable(void)
{
}