diff -urN -x CVS alsa-1.0/pci/au88x0/au8810.h alsa-1.0-irqcleanup/pci/au88x0/au8810.h
--- alsa-1.0/pci/au88x0/au8810.h	2004-01-27 11:05:25.000000000 -0500
+++ alsa-1.0-irqcleanup/pci/au88x0/au8810.h	2004-01-27 11:03:02.000000000 -0500
@@ -188,20 +188,7 @@
 
 /* IRQ */
 #define VORTEX_IRQ_SOURCE 0x2a000 /* Interrupt source flags. */
-#define 	IRQ_FATAL    0x0001
-#define 	IRQ_PARITY   0x0002
-#define 	IRQ_PCMOUT   0x0020 /* ?? */
-#define 	IRQ_TIMER    0x1000
-#define 	IRQ_MIDI     0x2000
-#define		IRQ_MODEM	0x4000
-
 #define VORTEX_IRQ_CTRL 0x2a004 /* Interrupt source mask. */
-#define 	IRQ_FATAL	0x0001
-#define 	IRQ_PARITY	0x0002
-#define 	IRQ_PCMOUT	0x0020 /* PCM OUT page crossing */
-#define 	IRQ_TIMER	0x1000
-#define 	IRQ_MIDI	0x2000
-#define		IRQ_MODEM	0x4000
 
 #define VORTEX_STAT	0x2a008 /* Status */
 
diff -urN -x CVS alsa-1.0/pci/au88x0/au8820.h alsa-1.0-irqcleanup/pci/au88x0/au8820.h
--- alsa-1.0/pci/au88x0/au8820.h	2004-01-27 11:05:26.000000000 -0500
+++ alsa-1.0-irqcleanup/pci/au88x0/au8820.h	2004-01-27 11:04:14.000000000 -0500
@@ -187,18 +187,7 @@
 
 /* IRQ */
 #define VORTEX_IRQ_SOURCE 0x12800 /* Interrupt source flags. */
-#define 	IRQ_FATAL	0x0001
-#define 	IRQ_PARITY	0x0002
-#define 	IRQ_PCMOUT	0x0020 /* ?? */
-#define 	IRQ_TIMER	0x1000
-#define 	IRQ_MIDI	0x2000
-
 #define VORTEX_IRQ_CTRL 0x12804 /* Interrupt source mask. */
-#define 	IRQ_FATAL    0x0001
-#define 	IRQ_PARITY   0x0002
-#define 	IRQ_PCMOUT   0x0020 /* PCM OUT page crossing */
-#define 	IRQ_TIMER    0x1000
-#define 	IRQ_MIDI     0x2000
 
 #define VORTEX_STAT		0x12808 /* ?? */
 
diff -urN -x CVS alsa-1.0/pci/au88x0/au8830.h alsa-1.0-irqcleanup/pci/au88x0/au8830.h
--- alsa-1.0/pci/au88x0/au8830.h	2004-01-27 11:05:26.000000000 -0500
+++ alsa-1.0-irqcleanup/pci/au88x0/au8830.h	2004-01-27 11:03:50.000000000 -0500
@@ -226,20 +226,7 @@
 
 /* IRQ */
 #define VORTEX_IRQ_SOURCE 0x2a000 /* Interrupt source flags. */
-#define 	IRQ_FATAL	0x0001
-#define 	IRQ_PARITY	0x0002
-#define 	IRQ_PCMOUT	0x0020 /* DMA page crossing */
-#define 	IRQ_TIMER	0x1000
-#define 	IRQ_MIDI	0x2000
-#define		IRQ_MODEM	0x4000
-
 #define VORTEX_IRQ_CTRL 0x2a004 /* Interrupt source mask. */
-#define 	IRQ_FATAL	0x0001
-#define 	IRQ_PARITY	0x0002
-#define 	IRQ_PCMOUT	0x0020 /* PCM OUT page crossing */
-#define 	IRQ_TIMER	0x1000
-#define 	IRQ_MIDI	0x2000
-#define		IRQ_MODEM	0x4000
 
 //#define VORTEX_IRQ_U0	0x2a008 /* ?? */
 #define VORTEX_STAT		0x2a008 /* Some sort of status */
diff -urN -x CVS alsa-1.0/pci/au88x0/au88x0_core.c alsa-1.0-irqcleanup/pci/au88x0/au88x0_core.c
--- alsa-1.0/pci/au88x0/au88x0_core.c	2004-01-27 11:05:28.000000000 -0500
+++ alsa-1.0-irqcleanup/pci/au88x0/au88x0_core.c	2004-01-27 11:02:03.000000000 -0500
@@ -1897,12 +1897,22 @@
 	
 	handled = 0;
 	// Attend every interrupt source.
-	if (source & IRQ_FATAL) {
-		printk(KERN_ERR "vortex: IRQ fatal error\n");
-		handled = 1;
-	}
-	if (source & IRQ_PARITY) {
-		printk(KERN_ERR "vortex: IRQ parity error\n");
+	if (unlikely(source & IRQ_ERR_MASK)) {
+		if (source & IRQ_FATAL) {
+			printk(KERN_ERR "vortex: IRQ fatal error\n");
+		}
+		if (source & IRQ_PARITY) {
+			printk(KERN_ERR "vortex: IRQ parity error\n");
+		}
+		if (source & IRQ_REG) {
+			printk(KERN_ERR "vortex: IRQ reg error\n");
+		}
+		if (source & IRQ_FIFO) {
+			printk(KERN_ERR "vortex: IRQ fifo error\n");
+		}
+		if (source & IRQ_DMA) {
+			printk(KERN_ERR "vortex: IRQ dma error\n");
+		}
 		handled = 1;
 	}
 	if (source & IRQ_PCMOUT) {
@@ -1910,14 +1920,14 @@
 		for (i=0; i<NR_ADB; i++) {
 			if (vortex->dma_adb[i].fifo_status == FIFO_START) {
 				if (vortex_adbdma_bufshift(vortex, i));
-					snd_pcm_period_elapsed(vortex->dma_adb[i].substream);
+				snd_pcm_period_elapsed(vortex->dma_adb[i].substream);
 			}
 		}
 #ifndef CHIP_AU8810
 		for (i=0; i<NR_WT; i++) {
 			if (vortex->dma_wt[i].fifo_status == FIFO_START) {
 				if (vortex_wtdma_bufshift(vortex, i));
-					snd_pcm_period_elapsed(vortex->dma_wt[i].substream);
+				snd_pcm_period_elapsed(vortex->dma_wt[i].substream);
 			}
 		}
 #endif
@@ -1932,7 +1942,7 @@
 		snd_mpu401_uart_interrupt(vortex->irq, vortex->rmidi->private_data, regs);
 		handled = 1;
 	}
-	
+
 	if (!handled) {
 		printk(KERN_ERR "vortex: unknown irq source %x\n", source);
 	}
diff -urN -x CVS alsa-1.0/pci/au88x0/au88x0.h alsa-1.0-irqcleanup/pci/au88x0/au88x0.h
--- alsa-1.0/pci/au88x0/au88x0.h	2004-01-27 11:05:26.000000000 -0500
+++ alsa-1.0-irqcleanup/pci/au88x0/au88x0.h	2004-01-27 11:02:49.000000000 -0500
@@ -62,6 +62,18 @@
 #define FIFO_START 1
 #define FIFO_PAUSE 2
 
+/* IRQ flags */
+#define IRQ_ERR_MASK	0x00ff
+#define IRQ_FATAL	0x0001
+#define IRQ_PARITY	0x0002
+#define IRQ_REG		0x0004
+#define IRQ_FIFO	0x0008
+#define IRQ_DMA		0x0010
+#define IRQ_PCMOUT	0x0020 /* PCM OUT page crossing */
+#define IRQ_TIMER	0x1000
+#define IRQ_MIDI	0x2000
+#define IRQ_MODEM	0x4000
+
 /* ADB Resource */
 #define VORTEX_RESOURCE_DMA		0x00000000
 #define VORTEX_RESOURCE_SRC		0x00000001