blob: ecdec3259be75a774bc37a096201e53aeff498f0 [file] [log] [blame]
/*
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 <linux/interrupt.h>
#include <linux/delay.h>
#include "scsi.h"
#include "hosts.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"
static int __init dmx3191d_detect(Scsi_Host_Template *tmpl) {
int boards = 0;
struct Scsi_Host *instance = NULL;
struct pci_dev *pdev = NULL;
if (!pci_present()) {
printk(KERN_WARNING "dmx3191: 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))) {
unsigned long port;
if (pci_enable_device(pdev))
continue;
port = pci_resource_start (pdev, 0);
if (!request_region(port, DMX3191D_REGION, DMX3191D_DRIVER_NAME)) {
printk(KERN_ERR "dmx3191: region 0x%lx-0x%lx already reserved\n",
port, port + DMX3191D_REGION);
continue;
}
instance = scsi_register(tmpl, sizeof(struct NCR5380_hostdata));
if(instance == NULL)
{
release_region(port, DMX3191D_REGION);
continue;
}
scsi_set_device(instance, &pdev->dev);
instance->io_port = port;
instance->irq = pdev->irq;
NCR5380_init(instance, FLAG_NO_PSEUDO_DMA | FLAG_DTC3181E);
if (request_irq(pdev->irq, dmx3191d_intr, SA_SHIRQ,
DMX3191D_DRIVER_NAME, instance)) {
printk(KERN_WARNING "dmx3191: IRQ %d not available - switching to polled mode.\n", pdev->irq);
/* Steam powered scsi controllers run without an IRQ
anyway */
instance->irq = IRQ_NONE;
}
boards++;
}
return boards;
}
static const char * dmx3191d_info(struct Scsi_Host *host) {
static const char *info ="Domex DMX3191D";
return info;
}
static 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;
}
MODULE_LICENSE("GPL");
static Scsi_Host_Template driver_template = DMX3191D;
#include "scsi_module.c"