int timer_get_conf(unsigned long timer, unsigned char *st) {
unsigned char temp; //Initialize ReadBack Command
temp = TIMER_RB_CMD | TIMER_RB_SEL(timer) |TIMER_RB_COUNT_; // Read Back Command
sys_outb(TIMER_CTRL,temp); //execute previous command
unsigned char timer_sel=TIMER_0+timer;
unsigned long temp_st; // Auxiliar long variable, to be filled
sys_inb(timer_sel,&temp_st); // There is no need for a cast this way
*st = temp_st; // The original variable st is filled as supposed and the unimportant bits are truncated while passing a long to a char
return 0;
}
int timer_get_conf(unsigned long timer, unsigned char *st) {
// Configura o read-back command
unsigned char read_back = TIMER_RB_CMD
| TIMER_RB_SEL(timer) | TIMER_RB_COUNT_;
// invoca sys_outb
sys_outb(TIMER_CTRL, read_back);
if (timer == 0 || timer == 1 || timer == 2) // 0 <= timer <= 2
{
// invoca sys_inb
sys_inb(TIMER_0 + timer, (unsigned long int *) st);
return 0;
}
return 1;
}
int getTimerConfig(unsigned long timer, unsigned char *st) {
if (timer < 0 || timer > 2)
return -1;
unsigned char byte = 0;
unsigned long stl;
byte |= TIMER_RB_CMD | TIMER_RB_SEL(timer);
sys_outb(TIMER_CTRL, byte);
sys_inb(TIMER_0 + timer, &stl);
*st = stl;
return 0;
}
int timer_get_conf(unsigned long timer, unsigned long *st) {
if (sys_outb(TIMER_CTRL, TIMER_RB_SEL(timer) | TIMER_RB_CMD | TIMER_RB_COUNT_))
{
return 1;
}
switch(timer)
{
case 0:
return sys_inb(TIMER_0, st);
case 1:
return sys_inb(TIMER_1, st);
case 2:
return sys_inb(TIMER_2, st);
default:
return 1;
}
}
int timer_get_conf(unsigned long timer, unsigned char *st)
{
unsigned long temporario;
int x;
temporario = TIMER_RB_CMD | TIMER_RB_COUNT_ |TIMER_RB_SEL(timer) ;
if(sys_outb(TIMER_CTRL, temporario) != 0)
{
return 1;
}
if(sys_inb(TIMER_0+timer, (unsigned long *) st )!= 0)
{
return 1;
}
//printf("%X",*st);
//printf("\n");
return 0;
}
static int get_timer_BCD(unsigned long timer)
{
if (sys_outb(TIMER_CTRL, TIMER_RB_SEL(timer) | TIMER_RB_CMD | TIMER_RB_COUNT_))
{
return -1;
}
unsigned long st;
switch(timer)
{
case 0:
if (sys_inb(TIMER_0, &st)) return -1;
break;
case 1:
if (sys_inb(TIMER_1, &st)) return -1;
break;
case 2:
if (sys_inb(TIMER_2, &st)) return -1;
break;
default:
return -1;
}
return (st & TIMER_BCD) == TIMER_BCD;
}
