patch-2.3.99-pre4 linux/drivers/scsi/dmx3191d.c

• Lines: 126
• Date: Mon Mar 27 09:48:11 2000
• Orig file: v2.3.99-pre3/linux/drivers/scsi/dmx3191d.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.99-pre3/linux/drivers/scsi/dmx3191d.c linux/drivers/scsi/dmx3191d.c
@@ -0,0 +1,125 @@
+
+/*
+    dmx3191d.c - midlevel driver for the Domex DMX3191D SCSI card.
+    Copyright (C) 2000 by Massimo Piccioni <dafastidio@libero.it>
+
+    Based on the generic NCR5380 driver by Drew Eckhardt et al.
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <asm/io.h>
+#include <asm/system.h>
+#include <linux/blk.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/sched.h>
+#include <linux/signal.h>
+#include <linux/stat.h>
+#include <linux/version.h>
+
+#include "scsi.h"
+#include "hosts.h"
+#include "constants.h"
+#include "sd.h"
+
+#include "dmx3191d.h"
+
+/* play with these values to tune up your system performances */
+/* default setting from g_NCR5380.c */
+/*
+#define USLEEP
+#define USLEEP_POLL		1
+#define USLEEP_SLEEP		20
+#define USLEEP_WAITLONG		500
+*/
+
+#define AUTOSENSE
+#include "NCR5380.h"
+#include "NCR5380.c"
+
+
+int __init dmx3191d_detect(Scsi_Host_Template *tmpl) {
+	int boards = 0;
+	struct Scsi_Host *instance = NULL;
+	struct pci_dev *pdev = NULL;
+
+	if (!pci_present()) {
+		dmx3191d_printk("PCI support not enabled\n");
+		return 0;
+	}
+
+	tmpl->proc_name = DMX3191D_DRIVER_NAME;
+
+	while ((pdev = pci_find_device(PCI_VENDOR_ID_DOMEX,
+			PCI_DEVICE_ID_DOMEX_DMX3191D, pdev))) {
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,3,13)
+		unsigned long port = pdev->base_address[0] & PCI_IOADDRESS_MASK;
+#else
+		unsigned long port = pdev->resource[0].start;
+#endif	/* LINUX_VERSION_CODE < KERNEL_VERSION(2,3,13) */
+
+		if (check_region(port, DMX3191D_REGION)) {
+			dmx3191d_printk("region 0x%lx-0x%lx already reserved\n",
+				port, port + DMX3191D_REGION);
+			continue;
+		}
+
+		request_region(port, DMX3191D_REGION, DMX3191D_DRIVER_NAME);
+
+		instance = scsi_register(tmpl, sizeof(struct NCR5380_hostdata));
+		instance->io_port = port;
+		instance->irq = pdev->irq;
+		NCR5380_init(instance, FLAG_NO_PSEUDO_DMA | FLAG_DTC3181E);
+
+		if (request_irq(pdev->irq, dmx3191d_do_intr, SA_SHIRQ,
+				DMX3191D_DRIVER_NAME, instance)) {
+			dmx3191d_printk("irq %d not available\n", pdev->irq);
+			/* Steam powered scsi controllers run without an IRQ
+			   anyway */
+			instance->irq = IRQ_NONE;
+		}
+
+		boards++;
+	}
+	return boards;
+}
+
+const char * dmx3191d_info(struct Scsi_Host *host) {
+	static const char *info ="Domex DMX3191D";
+
+	return info;
+}
+
+int dmx3191d_release_resources(struct Scsi_Host *instance)
+{
+	release_region(instance->io_port, DMX3191D_REGION);
+	if(instance->irq!=IRQ_NONE)
+		free_irq(instance->irq, instance);
+
+	return 0;
+}
+
+
+#ifdef MODULE
+Scsi_Host_Template driver_template = DMX3191D;
+
+#include "scsi_module.c"
+
+#endif	/* MODULE */
+