[deliverable/linux.git] / drivers / scsi / dmx3191d.c

/*
    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(instance->io_port + reg)
#define NCR5380_write(reg, value)	outb(value, instance->io_port + reg)

#define NCR5380_implementation_fields	/* none */

#include "NCR5380.h"
#include "NCR5380.c"

#define DMX3191D_DRIVER_NAME	"dmx3191d"
#define DMX3191D_REGION_LEN	8


static struct scsi_host_template dmx3191d_driver_template = {
	.module			= THIS_MODULE,
	.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;

	error = NCR5380_init(shost, FLAG_NO_PSEUDO_DMA);
	if (error)
		goto out_host_put;

	NCR5380_maybe_reset_bus(shost);

	pci_set_drvdata(pdev, shost);

	error = scsi_add_host(shost, &pdev->dev);
	if (error)
		goto out_exit;

	scsi_scan_host(shost);
	return 0;

out_exit:
	NCR5380_exit(shost);
out_host_put:
	scsi_host_put(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);
	unsigned long io = shost->io_port;

	scsi_remove_host(shost);

	NCR5380_exit(shost);
	scsi_host_put(shost);
	release_region(io, DMX3191D_REGION_LEN);
	pci_disable_device(pdev);
}

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");
Commit	Line	Data
1da177e4 LT	1	/*
	2	dmx3191d.c - driver for the Domex DMX3191D SCSI card.
	3	Copyright (C) 2000 by Massimo Piccioni <dafastidio@libero.it>
	4	Portions Copyright (C) 2004 by Christoph Hellwig <hch@lst.de>
	5
	6	Based on the generic NCR5380 driver by Drew Eckhardt et al.
	7
	8	This program is free software; you can redistribute it and/or modify
	9	it under the terms of the GNU General Public License as published by
	10	the Free Software Foundation; either version 2 of the License, or
	11	(at your option) any later version.
	12
	13	This program is distributed in the hope that it will be useful,
	14	but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	GNU General Public License for more details.
	17
	18	You should have received a copy of the GNU General Public License
	19	along with this program; if not, write to the Free Software
	20	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	21	*/
	22
	23	#include <linux/init.h>
	24	#include <linux/ioport.h>
	25	#include <linux/kernel.h>
	26	#include <linux/module.h>
	27	#include <linux/pci.h>
	28	#include <linux/interrupt.h>
	29	#include <asm/io.h>
	30
	31	#include <scsi/scsi_host.h>
	32
	33	/*
6070d81e	34	* Definitions for the generic 5380 driver.
1da177e4	35	*/
1da177e4	36
fd9cd67c FT	37	#define DONT_USE_INTR
fd9cd67c FT	38
54d8fe44 FT	39	#define NCR5380_read(reg) inb(instance->io_port + reg)
54d8fe44 FT	40	#define NCR5380_write(reg, value) outb(value, instance->io_port + reg)
1da177e4	41
acfc8cad	42	#define NCR5380_implementation_fields /* none */
1da177e4	43
1da177e4 LT	44	#include "NCR5380.h"
	45	#include "NCR5380.c"
	46
	47	#define DMX3191D_DRIVER_NAME "dmx3191d"
	48	#define DMX3191D_REGION_LEN 8
	49
	50
	51	static struct scsi_host_template dmx3191d_driver_template = {
aa2e2cb1	52	.module = THIS_MODULE,
1da177e4 LT	53	.proc_name = DMX3191D_DRIVER_NAME,
1da177e4 LT	54	.name = "Domex DMX3191D",
8c32513b	55	.info = NCR5380_info,
1da177e4 LT	56	.queuecommand = NCR5380_queue_command,
	57	.eh_abort_handler = NCR5380_abort,
	58	.eh_bus_reset_handler = NCR5380_bus_reset,
1da177e4 LT	59	.can_queue = 32,
	60	.this_id = 7,
	61	.sg_tablesize = SG_ALL,
	62	.cmd_per_lun = 2,
	63	.use_clustering = DISABLE_CLUSTERING,
	64	};
	65
6f039790 GKH	66	static int dmx3191d_probe_one(struct pci_dev *pdev,
6f039790 GKH	67	const struct pci_device_id *id)
1da177e4 LT	68	{
	69	struct Scsi_Host *shost;
	70	unsigned long io;
	71	int error = -ENODEV;
	72
	73	if (pci_enable_device(pdev))
	74	goto out;
	75
	76	io = pci_resource_start(pdev, 0);
	77	if (!request_region(io, DMX3191D_REGION_LEN, DMX3191D_DRIVER_NAME)) {
	78	printk(KERN_ERR "dmx3191: region 0x%lx-0x%lx already reserved\n",
	79	io, io + DMX3191D_REGION_LEN);
	80	goto out_disable_device;
	81	}
	82
	83	shost = scsi_host_alloc(&dmx3191d_driver_template,
	84	sizeof(struct NCR5380_hostdata));
	85	if (!shost)
	86	goto out_release_region;
	87	shost->io_port = io;
1da177e4	88
fd9cd67c FT	89	/* This card does not seem to raise an interrupt on pdev->irq.
	90	* Steam-powered SCSI controllers run without an IRQ anyway.
	91	*/
	92	shost->irq = NO_IRQ;
1da177e4	93
be3f4121	94	error = NCR5380_init(shost, FLAG_NO_PSEUDO_DMA);
0ad0eff9 FT	95	if (error)
0ad0eff9 FT	96	goto out_host_put;
1da177e4	97
b6488f97 FT	98	NCR5380_maybe_reset_bus(shost);
b6488f97 FT	99
1da177e4 LT	100	pci_set_drvdata(pdev, shost);
	101
	102	error = scsi_add_host(shost, &pdev->dev);
	103	if (error)
0ad0eff9	104	goto out_exit;
1da177e4 LT	105
	106	scsi_scan_host(shost);
	107	return 0;
	108
0ad0eff9 FT	109	out_exit:
	110	NCR5380_exit(shost);
	111	out_host_put:
	112	scsi_host_put(shost);
1da177e4	113	out_release_region:
c3c026ba	114	release_region(io, DMX3191D_REGION_LEN);
1da177e4 LT	115	out_disable_device:
	116	pci_disable_device(pdev);
	117	out:
	118	return error;
	119	}
	120
6f039790	121	static void dmx3191d_remove_one(struct pci_dev *pdev)
1da177e4 LT	122	{
1da177e4 LT	123	struct Scsi_Host *shost = pci_get_drvdata(pdev);
0ad0eff9	124	unsigned long io = shost->io_port;
1da177e4 LT	125
	126	scsi_remove_host(shost);
	127
	128	NCR5380_exit(shost);
1da177e4	129	scsi_host_put(shost);
0ad0eff9 FT	130	release_region(io, DMX3191D_REGION_LEN);
0ad0eff9 FT	131	pci_disable_device(pdev);
1da177e4 LT	132	}
	133
	134	static struct pci_device_id dmx3191d_pci_tbl[] = {
	135	{PCI_VENDOR_ID_DOMEX, PCI_DEVICE_ID_DOMEX_DMX3191D,
	136	PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
	137	{ }
	138	};
	139	MODULE_DEVICE_TABLE(pci, dmx3191d_pci_tbl);
	140
	141	static struct pci_driver dmx3191d_pci_driver = {
	142	.name = DMX3191D_DRIVER_NAME,
	143	.id_table = dmx3191d_pci_tbl,
	144	.probe = dmx3191d_probe_one,
6f039790	145	.remove = dmx3191d_remove_one,
1da177e4 LT	146	};
	147
	148	static int __init dmx3191d_init(void)
	149	{
dcbccbde	150	return pci_register_driver(&dmx3191d_pci_driver);
1da177e4 LT	151	}
	152
	153	static void __exit dmx3191d_exit(void)
	154	{
	155	pci_unregister_driver(&dmx3191d_pci_driver);
	156	}
	157
	158	module_init(dmx3191d_init);
	159	module_exit(dmx3191d_exit);
	160
	161	MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>");
	162	MODULE_DESCRIPTION("Domex DMX3191D SCSI driver");
	163	MODULE_LICENSE("GPL");