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/*
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 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 "scsi.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",
.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;
shost->irq = pdev->irq;
NCR5380_init(shost, FLAG_NO_PSEUDO_DMA | FLAG_DTC3181E);
if (request_irq(pdev->irq, NCR5380_intr, IRQF_SHARED,
DMX3191D_DRIVER_NAME, shost)) {
/*
* Steam powered scsi controllers run without an IRQ anyway
*/
printk(KERN_WARNING "dmx3191: IRQ %d not available - "
"switching to polled mode.\n", pdev->irq);
shost->irq = SCSI_IRQ_NONE;
}
pci_set_drvdata(pdev, shost);
error = scsi_add_host(shost, &pdev->dev);
if (error)
goto out_free_irq;
scsi_scan_host(shost);
return 0;
out_free_irq:
free_irq(shost->irq, shost);
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);
if (shost->irq != SCSI_IRQ_NONE)
free_irq(shost->irq, 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");
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