/* Work around for GDB crash... */
static int dontStepInThis()
{
int ps;
ps = vmPageSizeGet();
return ps;
}
/*************gpioInit()***************************/
void gpioInit(void){
int pageSize;
pageSize = vmPageSizeGet();
if(vmMap(NULL, GPIO_BASE_VIRT_ADDR, GPIO_BASE_PHYS_ADDR, pageSize) == ERROR){ //remap physcial address to virtual address
printf("Error mapping memory errno\n");
}
GPIO_GPDR |= GPIO3_MASK; //switch gpio3 to output mode
}
// neither getpagesize() or sysconf(_SC_PAGESIZE) are available
int getpagesize()
{
#if defined(_WRS_KERNEL)
return vmPageSizeGet();
#else
return sysconf(_SC_PAGESIZE);
#endif
}
// neither getpagesize() or sysconf(_SC_PAGESIZE) are available
int getpagesize()
{
return vmPageSizeGet();
}
STATUS vmContextShow
(
VM_CONTEXT_ID context /* context - NULL == currentContext */
)
{
UINT thisVirtPage;
UINT thisPhysPage;
UINT blockBegin;
UINT physPageAddr;
UINT thisState;
UINT blockPhysAddr;
UINT blockState;
int vmPageSize;
int physPageInc;
int numPages;
int pageCounter;
BOOL blockEnd;
BOOL printIt;
BOOL previousPageWasInvalid;
vmPageSize = vmPageSizeGet ();
if (vmPageSize == 0)
return (ERROR); /* vmLib is not installed! */
numPages = (unsigned) 0x80000000 / vmPageSize * 2;
pageCounter = 0;
blockEnd = FALSE;
blockPhysAddr = NULL;
printIt = TRUE;
previousPageWasInvalid = TRUE;
if (context == NULL)
context = vmCurrentGet ();
if (OBJ_VERIFY (context, vmContextClassId) != OK)
return (ERROR);
if (mmuPhysAddrShift)
{
printf ("VIRTUAL ADDR BLOCK LENGTH PHYSICAL PAGE STATE\n");
physPageInc = 1;
}
else
{
printf ("VIRTUAL ADDR BLOCK LENGTH PHYSICAL ADDR STATE\n");
physPageInc = vmPageSize;
}
semTake (&context->sem, WAIT_FOREVER);
thisVirtPage = thisPhysPage = 0;
vmStateGet (context, (void *) 0, &blockState);
for (blockBegin = 0;
pageCounter < numPages;
pageCounter++,
thisVirtPage += vmPageSize,
thisPhysPage += physPageInc)
{
if (vmTranslate (context, (void *) thisVirtPage,
(void **) &physPageAddr) == ERROR)
{
blockEnd = TRUE;
if (previousPageWasInvalid)
printIt = FALSE;
previousPageWasInvalid = TRUE;
thisPhysPage = 0xffffffff;
}
else
{
if (!previousPageWasInvalid && (physPageAddr != thisPhysPage))
blockEnd = TRUE;
if (vmStateGet (context, (void *) thisVirtPage, &thisState)== ERROR)
{
printf ("vmContextShow: error getting state for addr %x\n",
thisVirtPage);
return (ERROR);
}
if (!previousPageWasInvalid && (thisState != blockState))
blockEnd = TRUE;
if (previousPageWasInvalid)
{
blockBegin = thisVirtPage;
blockPhysAddr = thisPhysPage = physPageAddr;
blockState = thisState;
}
previousPageWasInvalid = FALSE;
}
if (blockEnd)
{
if (printIt)
vmContextShowNewBlock (blockBegin, thisVirtPage,
blockPhysAddr, blockState);
blockBegin = thisVirtPage;
blockState = thisState;
blockPhysAddr = thisPhysPage = physPageAddr;
blockEnd = FALSE;
printIt = TRUE;
}
}
/* see if there was a block that went up to the last virtual page */
if (!previousPageWasInvalid)
vmContextShowNewBlock (blockBegin, thisVirtPage,
blockPhysAddr, blockState);
semGive (&context->sem);
return (OK);
}
/**
* Gets the page size (in bytes) of the system.
*
* @return the page size (in bytes) of the system
*/
int sysGetPageSize() {
return vmPageSizeGet(); /* 0x1000 */
}
