/**
* @brief Check if any interface is available in a time limitation then lock it for usage.
* @param[in] tCAN The pointer to CAN module base address.
* @retval 0 IF0 is free
* @retval 1 IF1 is free
* @retval 2 No IF is free
* @details Search the first free message interface, starting from 0. If no interface is
* it will try again until time out. If a interface is available, set a flag to
* lock the interface.
*/
static uint32_t LockIF_TL(CAN_T *tCAN)
{
uint32_t u32Count;
uint32_t u32FreeIfNo;
for(u32Count = 0; u32Count < RETRY_COUNTS; u32Count++)
{
if((u32FreeIfNo = LockIF(tCAN)) != 2)
return u32FreeIfNo;
}
return u32FreeIfNo;
}
/**
* @brief Check if any interface is available in a time limitation then lock it for usage.
* @param[in] tCAN The pointer to CAN module base address.
* @retval 0 IF0 is free
* @retval 1 IF1 is free
* @retval 2 No IF is free
* @details Search the first free message interface, starting from 0. If no interface is
* it will try again until time out. If a interface is available, set a flag to
* lock the interface.
*/
static uint32_t LockIF_TL(CAN_T *tCAN)
{
uint32_t u32Count;
uint32_t u32FreeIfNo;
for(u32Count = 0ul; u32Count < RETRY_COUNTS; u32Count++) {
if((u32FreeIfNo = LockIF(tCAN)) != 2ul) {
break;
} else {
}
}
return u32FreeIfNo;
}
