/*
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
* Creative Labs, Inc.
* Routines for IRQ control of EMU10K1 chips
*
*
*/
-#include <sound/driver.h>
#include <linux/time.h>
#include <sound/core.h>
#include <sound/emu10k1.h>
-irqreturn_t snd_emu10k1_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+irqreturn_t snd_emu10k1_interrupt(int irq, void *dev_id)
{
struct snd_emu10k1 *emu = dev_id;
unsigned int status, status2, orig_status, orig_status2;
int handled = 0;
+ int timeout = 0;
- while ((status = inl(emu->port + IPR)) != 0) {
- //printk("emu10k1 irq - status = 0x%x\n", status);
+ while (((status = inl(emu->port + IPR)) != 0) && (timeout < 1000)) {
+ timeout++;
orig_status = status;
handled = 1;
+ if ((status & 0xffffffff) == 0xffffffff) {
+ snd_printk(KERN_INFO "snd-emu10k1: Suspected sound card removal\n");
+ break;
+ }
if (status & IPR_PCIERROR) {
snd_printk(KERN_ERR "interrupt: PCI error\n");
snd_emu10k1_intr_disable(emu, INTE_PCIERRORENABLE);
}
outl(orig_status, emu->port + IPR); /* ack all */
}
+ if (timeout == 1000)
+ snd_printk(KERN_INFO "emu10k1 irq routine failure\n");
+
return IRQ_RETVAL(handled);
}