patch-1.3.91 linux/drivers/scsi/g_NCR5380.c

• Lines: 66
• Date: Wed Apr 17 09:01:18 1996
• Orig file: v1.3.90/linux/drivers/scsi/g_NCR5380.c
• Orig date: Mon Apr 15 12:20:19 1996

diff -u --recursive --new-file v1.3.90/linux/drivers/scsi/g_NCR5380.c linux/drivers/scsi/g_NCR5380.c
@@ -50,6 +50,23 @@
  * 
  * -1 should be specified for no or DMA interrupt, -2 to autoprobe for an 
  * 	IRQ line if overridden on the command line.
+ *
+ * 3.  When included as a module, with arguments passed on the command line:
+ *         ncr_irq=xx	the interrupt
+ *         ncr_addr=xx  the port or base address (for port or memory
+ *              	mapped, resp.)
+ *         ncr_dma=xx	the DMA
+ *         ncr_5380=1	to set up for a NCR5380 board
+ *         ncr_53c400=1	to set up for a NCR53C400 board
+ *     e.g.
+ *     modprobe g_NCR5380 ncr_irq=5 ncr_addr=0x350 ncr_5380=1
+ *       for a port mapped NCR5380 board or
+ *     modprobe g_NCR5380 ncr_irq=255 ncr_addr=0xc8000 ncr_53c400=1
+ *       for a memory mapped NCR53C400 board with interrupts disabled.
+ * 
+ * 255 should be specified for no or DMA interrupt, 254 to autoprobe for an 
+ * 	IRQ line if overridden on the command line.
+ *     
  */
  
 /*
@@ -93,6 +110,13 @@
     S_IFDIR | S_IRUGO | S_IXUGO, 2
 };
 
+#define NCR_NOT_SET 0
+static int ncr_irq=NCR_NOT_SET;
+static int ncr_dma=NCR_NOT_SET;
+static int ncr_addr=NCR_NOT_SET;
+static int ncr_5380=NCR_NOT_SET;
+static int ncr_53c400=NCR_NOT_SET;
+
 static struct override {
 	NCR5380_implementation_fields;
     int irq;
@@ -189,6 +213,17 @@
     int flags = 0;
     struct Scsi_Host *instance;
 
+    if (ncr_irq != NCR_NOT_SET)
+	overrides[0].irq=ncr_irq;
+    if (ncr_dma != NCR_NOT_SET)
+	overrides[0].dma=ncr_dma;
+    if (ncr_addr != NCR_NOT_SET)
+	overrides[0].NCR5380_map_name=(NCR5380_map_type)ncr_addr;
+    if (ncr_5380 != NCR_NOT_SET)
+	overrides[0].board=BOARD_NCR5380;
+    else if (ncr_53c400 != NCR_NOT_SET)
+	overrides[0].board=BOARD_NCR53C400;
+
     tpnt->proc_dir = &proc_scsi_g_ncr5380;
 
     for (count = 0; current_override < NO_OVERRIDES; ++current_override) {
@@ -253,7 +288,8 @@
 
     NCR5380_setup(instance);
 
-    free_irq(instance->irq, NULL);
+    if (instance->irq != IRQ_NONE)
+	free_irq(instance->irq, NULL);
 
 	return 0;
 }