rtc.h

Go to the documentation of this file.

// AUTOMATICALLY GENERATED -- DO NOT EDIT!         -*- c++ -*-

#ifndef rtc_h
#define rtc_h

//
// INTERFACE definition follows 
//


class Rtc
{
private:
  Rtc();
  Rtc(const Rtc&);

public:  
  // set up timer interrupt (~ 1ms)
  static void init(void);
  
  static void done(void);
  
  static void set_freq_slow(void);
  
  static void set_freq_normal(void);
  
  // acknowledge RTC interrupt
  static inline void ack_reset(void);

private:  
  static inline unsigned char reg_read(unsigned char reg);
  
  static inline void reg_write(unsigned char reg, unsigned char val);
};

//
// IMPLEMENTATION includes follow (for use by inline functions)
//

#include "pic.h"

//
// IMPLEMENTATION of inline functions (and needed classes)
//



// acknowledge RTC interrupt

inline void
Rtc::ack_reset(void)
{
  // reset irq by reading the cmos port
  // do it fast because we are cli'd
  asm volatile ("movb $0xc, %%al\n\t"
                "outb %%al,$0x70\n\t"
                "outb %%al,$0x80\n\t"
                "inb  $0x71,%%al\n\t" : : : "eax");

  // acknowledge interrupt
  Pic::acknowledge_locked(8);

  // reset irq by reading the cmos port
  // do it fast because we are cli'd
  asm volatile ("movb $0xc, %%al\n\t"
                "outb %%al,$0x70\n\t"
                "outb %%al,$0x80\n\t"
                "inb  $0x71,%%al\n\t" : : : "eax");
}

#endif // rtc_h

---