linux-vax-kern-commit

[Dave A. <ai...@us...>]

Update of /cvsroot/linux-vax/kernel-2.4/drivers/scsi
In directory sc8-pr-cvs1:/tmp/cvs-serv29801

Modified Files:
	vax-5380.c 
Log Message:
DA: see can we support two SCSI interfaces...


Index: vax-5380.c
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/drivers/scsi/vax-5380.c,v
retrieving revision 1.3
retrieving revision 1.4
diff -u -r1.3 -r1.4
--- vax-5380.c	22 Feb 2001 22:18:17 -0000	1.3
+++ vax-5380.c	29 May 2003 13:29:52 -0000	1.4
@@ -54,6 +54,9 @@
  
 /*
  * $Log$
+ * Revision 1.4  2003/05/29 13:29:52  airlied
+ * DA: see can we support two SCSI interfaces...
+ *
  * Revision 1.3  2001/02/22 22:18:17  airlied
  * vsa->vsbus
  *
@@ -88,17 +91,17 @@
 #include <linux/init.h>
 #include <asm/vsa.h>
 
+#define TRY_TWO_IFS 1
 /* set this to 0 for external SCSI */
 #define INTERNAL_SCSI 1
 
 static void do_vax_5380_intr_ack(int irq, void *dev_id, struct pt_regs *regs)
 {
 	do_vax_5380_intr(irq, dev_id, regs);
-#if INTERNAL_SCSI
-	vsbus_clear_int(1);
-#else
-	vsbus_clear_int(0);
-#endif
+	if (irq == 0xfe)
+		vsbus_clear_int(1);
+	else
+		vsbus_clear_int(0);
 }
 
 /* 
@@ -116,59 +119,67 @@
 
 
 int __init vax_5380_detect(Scsi_Host_Template * tpnt) {
-    struct Scsi_Host *instance;
-    unsigned long base;
+    struct Scsi_Host *instance[2];
+    unsigned long base[2];
+    int num_hosts, i;
 
     tpnt->proc_name = "vax5380";
     tpnt->proc_info = vax_5380_proc_info;
 
-#if INTERNAL_SCSI
-    base = 0x200c0080;
+#if TRY_TWO_IFS
+    num_hosts = 2;
 #else
-    base = 0x200c0180;
+    num_hosts = 1;
 #endif
 
-    instance = scsi_register (tpnt, sizeof(struct NCR5380_hostdata));
-    instance->base = (unsigned long) ioremap(base, 0x80);
-
-    NCR5380_init(instance, 0);
-
 #if INTERNAL_SCSI
-    instance->irq = 0xfe;
+    base[0]=0x200c0080;
+    base[1]=0x200c0180;
 #else
-    instance->irq = 0xff;
+    base[0]=0x200c0180;
+    base[1]=0x200c0080;
 #endif
 
+    for ( i=0 ; i<num_hosts ; i++ ) {
+    	instance[i] = scsi_register (tpnt, sizeof(struct NCR5380_hostdata));
+    	instance[i]->base = (unsigned long) ioremap(base[i], 0x80);
+
+    	NCR5380_init(instance[i], 0);
+
+    	if (base[i] == 0x200c0080)
+    		instance[i]->irq = 0xfe;
+    	else
+		instance[i]->irq = 0xff;
+
 #if defined(VDEBUG) && (VDEBUG & VDEBUG_INIT)
-    printk("scsi%d : irq = %d\n", instance->host_no, instance->irq);
+    	printk("scsi%d : irq = %d\n", instance[i]->host_no, instance[i]->irq);
 #endif
 
 #if 1
-    if (request_irq(instance->irq, do_vax_5380_intr_ack, SA_INTERRUPT, "vax-5380", NULL)) {
-	printk("scsi%d : IRQ%d not free, interrupts disabled\n", 
-        		instance->host_no, instance->irq);
-	instance->irq = IRQ_NONE;
+    	if (request_irq(instance[i]->irq, do_vax_5380_intr_ack, SA_INTERRUPT, "vax-5380", NULL)) {
+		printk("scsi%d : IRQ%d not free, interrupts disabled\n", 
+        		instance[i]->host_no, instance[i]->irq);
+		instance[i]->irq = IRQ_NONE;
+    	}
+
+    	if (instance[i]->irq != IRQ_NONE) {
+		if (instance[i]->irq == 0xfe)
+			vsbus_enable_int(1);
+		else
+			vsbus_enable_int(0);
+    	}
+#endif
+
+    	printk("scsi%d : at 0x%08lx", instance[i]->host_no, instance[i]->base);
+    	if (instance[i]->irq == IRQ_NONE)
+		printk (" interrupts disabled");
+    	else 
+		printk (" irq %d", instance[i]->irq);
+    	printk(" options CAN_QUEUE=%d  CMD_PER_LUN=%d release=%d",
+		CAN_QUEUE, CMD_PER_LUN, VAX_5380_PUBLIC_RELEASE);
+    	NCR5380_print_options(instance[i]);
+    	printk("\n");
     }
-
-    if (instance->irq != IRQ_NONE) {
-#if INTERNAL_SCSI
-	vsbus_enable_int(1);
-#else
-	vsbus_enable_int(0);
-#endif
-    }
-#endif
-
-    printk("scsi%d : at 0x%08lx", instance->host_no, instance->base);
-    if (instance->irq == IRQ_NONE)
-	printk (" interrupts disabled");
-    else 
-	printk (" irq %d", instance->irq);
-    printk(" options CAN_QUEUE=%d  CMD_PER_LUN=%d release=%d",
-	CAN_QUEUE, CMD_PER_LUN, VAX_5380_PUBLIC_RELEASE);
-    NCR5380_print_options(instance);
-    printk("\n");
-
     return 1;
 }