package/kernel/lantiq/ltq-vdsl/patches/110-semaphore-lock.patch

   1 --- a/src/include/drv_dsl_cpe_pm_core.h
   2 +++ b/src/include/drv_dsl_cpe_pm_core.h
   3 @@ -1510,9 +1510,9 @@ typedef struct
   4     /** Common PM module mutex*/
   5     DSL_DRV_Mutex_t pmMutex;
   6     /** PM module direction Near-End mutex*/
   7 -   DSL_DRV_Mutex_t pmNeMutex;
   8 +   struct semaphore pmNeMutex;
   9     /** PM module direction Far-End mutex*/
  10 -   DSL_DRV_Mutex_t pmFeMutex;
  11 +   struct semaphore pmFeMutex;
  12     /** PM module Near-End access mutex*/
  13     DSL_DRV_Mutex_t pmNeAccessMutex;
  14     /** PM module Far-End access mutex*/
  15 --- a/src/pm/drv_dsl_cpe_api_pm.c
  16 +++ b/src/pm/drv_dsl_cpe_api_pm.c
  17 @@ -220,9 +220,9 @@ DSL_Error_t DSL_DRV_PM_Start(
  18     /* init PM module common mutex */
  19     DSL_DRV_MUTEX_INIT(DSL_DRV_PM_CONTEXT(pContext)->pmMutex);
  20     /* init PM module direction Near-End mutex */
  21 -   DSL_DRV_MUTEX_INIT(DSL_DRV_PM_CONTEXT(pContext)->pmNeMutex);
  22 +   sema_init(&(DSL_DRV_PM_CONTEXT(pContext)->pmNeMutex),1);
  23     /* init PM module direction Far-End mutex */
  24 -   DSL_DRV_MUTEX_INIT(DSL_DRV_PM_CONTEXT(pContext)->pmFeMutex);
  25 +   sema_init(&(DSL_DRV_PM_CONTEXT(pContext)->pmFeMutex),1);
  26     /* init PM module Near-End access mutex */
  27     DSL_DRV_MUTEX_INIT(DSL_DRV_PM_CONTEXT(pContext)->pmNeAccessMutex);
  28     /* init PM module Far-End access mutex */
  29 @@ -592,7 +592,7 @@ DSL_Error_t DSL_DRV_PM_Stop(
  30     if( DSL_DRV_PM_CONTEXT(pContext)->pmThreadFe.bRun != DSL_TRUE )
  31     {
  32        DSL_DEBUG(DSL_DBG_WRN,
  33 -         (pContext, SYS_DBG_WRN"DSL[%02d]: PM module Near-End thread already stopped"
  34 +         (pContext, SYS_DBG_WRN"DSL[%02d]: PM module Far-End thread already stopped"
  35           DSL_DRV_CRLF, DSL_DEV_NUM(pContext)));
  36     }
  37     else
  38 --- a/src/pm/drv_dsl_cpe_pm_core.c
  39 +++ b/src/pm/drv_dsl_cpe_pm_core.c
  40 @@ -1022,7 +1022,7 @@ DSL_Error_t DSL_DRV_PM_DirectionMutexCon
  41     {
  42        if( bLock )
  43        {
  44 -         if( DSL_DRV_MUTEX_LOCK(DSL_DRV_PM_CONTEXT(pContext)->pmNeMutex) )
  45 +         if(down_interruptible(&(DSL_DRV_PM_CONTEXT(pContext)->pmNeMutex)))
  46           {
  47              DSL_DEBUG( DSL_DBG_ERR,
  48                 (pContext, SYS_DBG_ERR"DSL[%02d]: ERROR - Couldn't lock PM NE mutex!"
  49 @@ -1034,14 +1034,14 @@ DSL_Error_t DSL_DRV_PM_DirectionMutexCon
  50        else
  51        {
  52            /* Unlock PM module NE Mutex*/
  53 -          DSL_DRV_MUTEX_UNLOCK(DSL_DRV_PM_CONTEXT(pContext)->pmNeMutex);
  54 +          up(&(DSL_DRV_PM_CONTEXT(pContext)->pmNeMutex));
  55        }
  56     }
  57     else
  58     {
  59        if( bLock )
  60        {
  61 -         if( DSL_DRV_MUTEX_LOCK(DSL_DRV_PM_CONTEXT(pContext)->pmFeMutex) )
  62 +         if(down_interruptible(&(DSL_DRV_PM_CONTEXT(pContext)->pmFeMutex)))
  63           {
  64              DSL_DEBUG( DSL_DBG_ERR,
  65                 (pContext, SYS_DBG_ERR"DSL[%02d]: ERROR - Couldn't lock PM FE mutex!"
  66 @@ -1053,7 +1053,7 @@ DSL_Error_t DSL_DRV_PM_DirectionMutexCon
  67        else
  68        {
  69           /* Unlock PM module FE Mutex*/
  70 -         DSL_DRV_MUTEX_UNLOCK(DSL_DRV_PM_CONTEXT(pContext)->pmFeMutex);
  71 +         up(&(DSL_DRV_PM_CONTEXT(pContext)->pmFeMutex));
  72        }
  73     }
  74
  75 @@ -1139,7 +1139,7 @@ DSL_Error_t DSL_DRV_PM_Lock(DSL_Context_
  76     if( !(DSL_DRV_PM_CONTEXT(pContext)->bPmLock) )
  77     {
  78        /* Lock PM module Near-End Mutex*/
  79 -      if( DSL_DRV_MUTEX_LOCK(DSL_DRV_PM_CONTEXT(pContext)->pmNeMutex) )
  80 +      if(down_interruptible(&(DSL_DRV_PM_CONTEXT(pContext)->pmNeMutex)))
  81        {
  82           DSL_DEBUG( DSL_DBG_ERR,
  83              (pContext, SYS_DBG_ERR"DSL[%02d]: ERROR - Couldn't lock PM NE mutex!"
  84 @@ -1148,8 +1148,8 @@ DSL_Error_t DSL_DRV_PM_Lock(DSL_Context_
  85           return DSL_ERR_SEMAPHORE_GET;
  86        }
  87
  88 -      /* Lock PM module Near-End Mutex*/
  89 -      if( DSL_DRV_MUTEX_LOCK(DSL_DRV_PM_CONTEXT(pContext)->pmFeMutex) )
  90 +      /* Lock PM module Far-End Mutex*/
  91 +      if( down_interruptible(&(DSL_DRV_PM_CONTEXT(pContext)->pmFeMutex)) )
  92        {
  93           DSL_DEBUG( DSL_DBG_ERR,
  94              (pContext, SYS_DBG_ERR"DSL[%02d]: ERROR - Couldn't lock PM FE mutex!"
  95 @@ -1193,10 +1193,10 @@ DSL_Error_t DSL_DRV_PM_UnLock(DSL_Contex
  96     if( DSL_DRV_PM_CONTEXT(pContext)->bPmLock )
  97     {
  98        /* Unlock PM module NE Mutex*/
  99 -      DSL_DRV_MUTEX_UNLOCK(DSL_DRV_PM_CONTEXT(pContext)->pmNeMutex);
 100 +      up(&(DSL_DRV_PM_CONTEXT(pContext)->pmNeMutex));
 101
 102        /* Unlock PM module FE Mutex*/
 103 -      DSL_DRV_MUTEX_UNLOCK(DSL_DRV_PM_CONTEXT(pContext)->pmFeMutex);
 104 +      up(&(DSL_DRV_PM_CONTEXT(pContext)->pmFeMutex));
 105
 106        /* Clear bPmLock flag*/
 107        DSL_DRV_PM_CONTEXT(pContext)->bPmLock = DSL_FALSE;