tests/rule19a.c

   1 static void
   2 gazel_interrupt_ipac(int intno, void *dev_id, struct pt_regs *regs)
   3 {
   4         struct IsdnCardState *cs = dev_id;
   5         u_char ista, val;
   6         int count = 0;
   7
   8         if (!cs) {
   9                 printk(KERN_WARNING "Gazel: Spurious interrupt!\n");
  10                 return;
  11         }
  12         do {
  13                 if (ista & 0x10) {
  14                         val = 0x01;
  15                         isac_interrupt(cs, val);
  16                 }
  17         }
  18         while ((ista & 0x3f) && (count < MAXCOUNT));
  19
  20         WriteISAC(cs, IPAC_MASK - 0x80, 0xFF);
  21         WriteISAC(cs, IPAC_MASK - 0x80, 0xC0);
  22 }
  23