from bbb port

system/evec.c

@@ -7,125 +7,12 @@ typedef unsigned int size_t;
 #include <stdio.h>
 
 
-// RAFA uint32	__attribute__((aligned(0x100))) intc_vector[92];	/* Interrupt vector	*/
-
-/* Each message corresponds to an exception in the vector table. */
-char * exception_message(uint8 intnr) {
-
-
-/* RAFA 
-E_A    "--",
-E_B    "RESET",
-E_etc    "NMI",
-    "HARD FAULT",
-    "MEMMANAGE FAULT",
-    "BUS FAULT",
-    "USAGE FAULT",
-    "RESERVED",
-    "RESERVED",
-    "RESERVED",
-    "RESERVED",
-    "SVC",
-    "DEBUG MONITOR",
-    "RESERVED",
-    "RESERVED",
-    "RESERVED",
-    "RESERVED",
-    "PENDSV",
-    "SYSTICK",
-    "IRQ1",
-    "IRQ2",
-    "IRQ3",
-    "IRQ4",
-    // add more if needed
-*/
-// RAFA char * messages[] = {
-const char messages[] PROGMEM = {
-    'A',
-    'B',
-    'C',
-    'D',
-    'E',
-    'F',
-    'G',
-    'H',
-    'I',
-    'J',
-    'K',
-    'L',
-    'M',
-    'N',
-    'N',
-    'N',
-    'N',
-    'O',
-    'P',
-    'Q',
-    'R',
-    'S',
-    'T',
-    // add more if needed
-};
-
-if (intnr < 20) // TODO: strlen
-	return pgm_read_word(&messages[intnr]);
-
-return "UNKNOWN";
-
-}
-
-__attribute__ ((naked)) void * dummy_isr(void) {
-
-	uint32 * current_sp;
-
-	/* Test whether system call was invoked from supervisor (use MSP) or
-	 * user (use PSP) mode */
-	/*	asm volatile (
-	"tst lr, #4" "\n\t"
-	"ite eq" "\n\t"
-	"mrseq %0, msp" "\n\t"
-	"mrsne %0, psp" : "=r" (current_sp)); */
-
-/*
-	asm volatile ("mrs %0, psp" : "=r" (current_sp));
-
-      	uint8 nr = *SCB_ICSR & 0xFF;
-      	kprintf("EXCEPTION: %s\n", exception_message(nr));
-	kprintf("STACKFRAME:\n");
-	for (int i = 0; i < 8; i++) {
-		kprintf("STACK[%d]: %x\n", i, current_sp[i]);
-	}
-	
-	halt(); 
-*/
-}
 /*------------------------------------------------------------------------
  * initintc - Initialize the Interrupt Controller
  *------------------------------------------------------------------------
  */
 int32	initintc()
 {
-	/* System control block */
-	// STM32 specific: struct	scb_csreg *csrptr = (struct scb_csreg *)0xE000ED00;
-	
-	/* clear entire IVT location in memory  */
-	// RAFA memset(&intc_vector, 0, (sizeof(uint32) * 92));
-
-	/* set dummy handlers */
-	for (int i = 1; i <= 64 ; i++) {
-		set_evec(i, (uint32) dummy_isr);
-	}
-
-	/* Enable memory management, bus and usage fault exceptions handlers
-	 * If these are not enabled, the processor treats them as a hard
-	 * faults. Unpriviliged access will cause a busfault in case no MPU */
-	// STM32 specific: srptr->shcsr |= (1 << MPUFAULT_EN) | (1 << BUSFAULT_EN) | (1 << USAGEFAULT_EN);	
-	
-	/* The vector table is intially at 0x0. The vector table can be
-	 * relocated to other memory locations. We can do this by setting 
-	 * a register in the NVIC called the vector table offset register */
-	// RAFA // STM32 specific: srptr->vtor = (uint32) &intc_vector;
-	
 	return OK;
 }
 
@@ -141,10 +28,6 @@ int32	set_evec(uint32 xnum, uint32 handler)
 		return SYSERR;
 	}
 
-	/* Install the handler */
-
-	// STM32 specific: intc_vector[xnum] = handler;
-
 	return OK;
 }
 

system/gettime.c

@@ -15,8 +15,7 @@ status	gettime(
 
 	/* Get current time in UCT representation (GMT) */
 
-	//retval = getutime(&now);
-	retval = SYSERR;
+//	retval = getutime(&now);
 	if (retval == SYSERR) {
 		return SYSERR;
 	}

system/init.c

@@ -14,7 +14,6 @@ syscall	init(
 	struct dentry	*devptr;	/* Entry in device switch table	*/
 	int32		retval;		/* Value to return to caller	*/
 
-
 	mask = disable();
 	if (isbaddev(descrp)) {
 		restore(mask);
@@ -23,6 +22,5 @@ syscall	init(
 	devptr = (struct dentry *) &devtab[descrp];
 	retval = (*devptr->dvinit) (devptr);
 	restore(mask);
-
 	return retval;
 }