AXIOMTEK AX10445 Series, Руководство пользователя

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AX10445 Module Series User
’
s Manual
Application
31
return;
}
if (int_id >= 4) /* data ready interrupt */
{
inbuf1[front1] =
inportb(CH1_PA); /* store into buffer */
+;
if (front1 >= BUFSIZE) front1 = 0;
}
}
end_of_ch1:
/* pass control to old interrupt service routine if needed */
(*oldch1)();
}
/* interrupt service routine for channel 2 */
void interrupt far CH2_ISR()
{
register int int_id;
enable();
while (1)
{
int_id = inportb(IIR);
if ((int_id & 1) == 1)
/* no interrupt pending */
{
outportb(0x20,0x20); /* send EOI */
return;
}
if (int_id >= 4) /* data ready interrupt */
{
inbuf2[front2] = inportb(CH2_PA); /* store into buffer */
+;
if (front2 >= BUFSIZE) front2 = 0;
}
}
end_of_ch2:
/* pass control to old interrupt service routine if needed */
(* oldch2)();
}