Initial import

1 files changed, 162 insertions, 0 deletions

diff --git a/drivers/scsi/dmx3191d.c b/drivers/scsi/dmx3191d.c
new file mode 100644
index 000000000..3e088125a
--- /dev/null
+++ b/drivers/scsi/dmx3191d.c
@@ -0,0 +1,162 @@
+/*
+    dmx3191d.c - driver for the Domex DMX3191D SCSI card.
+    Copyright (C) 2000 by Massimo Piccioni <dafastidio@libero.it>
+    Portions Copyright (C) 2004 by Christoph Hellwig <hch@lst.de>
+
+    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 <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <asm/io.h>
+
+#include <scsi/scsi_host.h>
+
+/*
+ * Definitions for the generic 5380 driver.
+ */
+
+#define DONT_USE_INTR
+
+#define NCR5380_read(reg)		inb(port + reg)
+#define NCR5380_write(reg, value)	outb(value, port + reg)
+
+#define NCR5380_implementation_fields	/* none */
+#define NCR5380_local_declare()		unsigned int port
+#define NCR5380_setup(instance)		port = instance->io_port
+
+/*
+ * Includes needed for NCR5380.[ch] (XXX: Move them to NCR5380.h)
+ */
+#include <linux/delay.h>
+
+#include "NCR5380.h"
+#include "NCR5380.c"
+
+#define DMX3191D_DRIVER_NAME	"dmx3191d"
+#define DMX3191D_REGION_LEN	8
+
+
+static struct scsi_host_template dmx3191d_driver_template = {
+	.proc_name		= DMX3191D_DRIVER_NAME,
+	.name			= "Domex DMX3191D",
+	.info			= NCR5380_info,
+	.queuecommand		= NCR5380_queue_command,
+	.eh_abort_handler	= NCR5380_abort,
+	.eh_bus_reset_handler	= NCR5380_bus_reset,
+	.can_queue		= 32,
+	.this_id		= 7,
+	.sg_tablesize		= SG_ALL,
+	.cmd_per_lun		= 2,
+	.use_clustering		= DISABLE_CLUSTERING,
+};
+
+static int dmx3191d_probe_one(struct pci_dev *pdev,
+			      const struct pci_device_id *id)
+{
+	struct Scsi_Host *shost;
+	unsigned long io;
+	int error = -ENODEV;
+
+	if (pci_enable_device(pdev))
+		goto out;
+
+	io = pci_resource_start(pdev, 0);
+	if (!request_region(io, DMX3191D_REGION_LEN, DMX3191D_DRIVER_NAME)) {
+		printk(KERN_ERR "dmx3191: region 0x%lx-0x%lx already reserved\n",
+				io, io + DMX3191D_REGION_LEN);
+		goto out_disable_device;
+	}
+
+	shost = scsi_host_alloc(&dmx3191d_driver_template,
+			sizeof(struct NCR5380_hostdata));
+	if (!shost)
+		goto out_release_region;       
+	shost->io_port = io;
+
+	/* This card does not seem to raise an interrupt on pdev->irq.
+	 * Steam-powered SCSI controllers run without an IRQ anyway.
+	 */
+	shost->irq = NO_IRQ;
+
+	NCR5380_init(shost, FLAG_NO_PSEUDO_DMA | FLAG_DTC3181E);
+
+	pci_set_drvdata(pdev, shost);
+
+	error = scsi_add_host(shost, &pdev->dev);
+	if (error)
+		goto out_release_region;
+
+	scsi_scan_host(shost);
+	return 0;
+
+ out_release_region:
+	release_region(io, DMX3191D_REGION_LEN);
+ out_disable_device:
+	pci_disable_device(pdev);
+ out:
+	return error;
+}
+
+static void dmx3191d_remove_one(struct pci_dev *pdev)
+{
+	struct Scsi_Host *shost = pci_get_drvdata(pdev);
+
+	scsi_remove_host(shost);
+
+	NCR5380_exit(shost);
+
+	release_region(shost->io_port, DMX3191D_REGION_LEN);
+	pci_disable_device(pdev);
+
+	scsi_host_put(shost);
+}
+
+static struct pci_device_id dmx3191d_pci_tbl[] = {
+	{PCI_VENDOR_ID_DOMEX, PCI_DEVICE_ID_DOMEX_DMX3191D,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
+	{ }
+};
+MODULE_DEVICE_TABLE(pci, dmx3191d_pci_tbl);
+
+static struct pci_driver dmx3191d_pci_driver = {
+	.name		= DMX3191D_DRIVER_NAME,
+	.id_table	= dmx3191d_pci_tbl,
+	.probe		= dmx3191d_probe_one,
+	.remove		= dmx3191d_remove_one,
+};
+
+static int __init dmx3191d_init(void)
+{
+	return pci_register_driver(&dmx3191d_pci_driver);
+}
+
+static void __exit dmx3191d_exit(void)
+{
+	pci_unregister_driver(&dmx3191d_pci_driver);
+}
+
+module_init(dmx3191d_init);
+module_exit(dmx3191d_exit);
+
+MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>");
+MODULE_DESCRIPTION("Domex DMX3191D SCSI driver");
+MODULE_LICENSE("GPL");