Steve Karg
7cb63dcf06
* RP and RPM Network Port indefinite object instance Added ReadProperty and ReadPropertyMultiple handling for Network Port object indefinite object instance 4194303. * Add network port object to some examples * Fix stm32f10x build * Fix Endian order of network port IP UDP port * Add network port object to BDK Makefile * Add network port object header to BDK device.c * fix BDK and AT91SAM7S port builds Co-authored-by: Steve Karg <skarg@users.sourceforge.net>
97 lines
2.2 KiB
C
97 lines
2.2 KiB
C
/* **********************************************************************************************
|
|
*/
|
|
/* */
|
|
/* File Name : isr.c */
|
|
/* Title : interrupt enable/disable functions */
|
|
/* */
|
|
/* */
|
|
/* This module provides the interface routines for setting up and */
|
|
/* controlling the various interrupt modes present on the ARM processor. */
|
|
/* Copyright 2004, R O SoftWare */
|
|
/* No guarantees, warrantees, or promises, implied or otherwise. */
|
|
/* May be used for hobby or commercial purposes provided copyright */
|
|
/* notice remains intact. */
|
|
/* */
|
|
/* Note from Jim Lynch: */
|
|
/* This module was developed by Bill Knight, RO Software and used with his
|
|
* permission. */
|
|
/* Taken from the Yahoo LPC2000 User's Group - Files Section 'UT050418A.ZIP' */
|
|
/* Specifically, the module armVIC.c with the include file references removed
|
|
*/
|
|
/* **********************************************************************************************
|
|
*/
|
|
#include "at91sam7s256.h"
|
|
#include "isr.h"
|
|
|
|
#if defined(__GNUC__)
|
|
/* GCC */
|
|
#define IRQ_MASK 0x00000080
|
|
#define FIQ_MASK 0x00000040
|
|
#define INT_MASK (IRQ_MASK | FIQ_MASK)
|
|
|
|
static inline unsigned __get_cpsr(void)
|
|
{
|
|
unsigned long retval;
|
|
asm volatile(" mrs %0, cpsr" : "=r"(retval) : /* no inputs */);
|
|
return retval;
|
|
}
|
|
|
|
static inline void __set_cpsr(unsigned val)
|
|
{
|
|
asm volatile(" msr cpsr, %0" : /* no outputs */ : "r"(val));
|
|
}
|
|
|
|
unsigned disableIRQ(void)
|
|
{
|
|
unsigned _cpsr;
|
|
_cpsr = __get_cpsr();
|
|
__set_cpsr(_cpsr | IRQ_MASK);
|
|
return _cpsr;
|
|
}
|
|
|
|
unsigned restoreIRQ(unsigned oldCPSR)
|
|
{
|
|
unsigned _cpsr;
|
|
|
|
_cpsr = __get_cpsr();
|
|
__set_cpsr((_cpsr & ~IRQ_MASK) | (oldCPSR & IRQ_MASK));
|
|
return _cpsr;
|
|
}
|
|
|
|
unsigned enableIRQ(void)
|
|
{
|
|
unsigned _cpsr;
|
|
|
|
_cpsr = __get_cpsr();
|
|
__set_cpsr(_cpsr & ~IRQ_MASK);
|
|
return _cpsr;
|
|
}
|
|
|
|
unsigned disableFIQ(void)
|
|
{
|
|
unsigned _cpsr;
|
|
|
|
_cpsr = __get_cpsr();
|
|
__set_cpsr(_cpsr | FIQ_MASK);
|
|
return _cpsr;
|
|
}
|
|
|
|
unsigned restoreFIQ(unsigned oldCPSR)
|
|
{
|
|
unsigned _cpsr;
|
|
|
|
_cpsr = __get_cpsr();
|
|
__set_cpsr((_cpsr & ~FIQ_MASK) | (oldCPSR & FIQ_MASK));
|
|
return _cpsr;
|
|
}
|
|
|
|
unsigned enableFIQ(void)
|
|
{
|
|
unsigned _cpsr;
|
|
|
|
_cpsr = __get_cpsr();
|
|
__set_cpsr(_cpsr & ~FIQ_MASK);
|
|
return _cpsr;
|
|
}
|
|
#endif
|