[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(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");
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
1da177e4 LT	39	#define NCR5380_read(reg) inb(port + reg)
	40	#define NCR5380_write(reg, value) outb(value, port + reg)
	41
acfc8cad FT	42	#define NCR5380_implementation_fields /* none */
acfc8cad FT	43	#define NCR5380_local_declare() unsigned int port
1da177e4 LT	44	#define NCR5380_setup(instance) port = instance->io_port
	45
	46	/*
	47	* Includes needed for NCR5380.[ch] (XXX: Move them to NCR5380.h)
	48	*/
	49	#include <linux/delay.h>
1da177e4 LT	50
	51	#include "NCR5380.h"
	52	#include "NCR5380.c"
	53
	54	#define DMX3191D_DRIVER_NAME "dmx3191d"
	55	#define DMX3191D_REGION_LEN 8
	56
	57
	58	static struct scsi_host_template dmx3191d_driver_template = {
	59	.proc_name = DMX3191D_DRIVER_NAME,
	60	.name = "Domex DMX3191D",
8c32513b	61	.info = NCR5380_info,
1da177e4 LT	62	.queuecommand = NCR5380_queue_command,
	63	.eh_abort_handler = NCR5380_abort,
	64	.eh_bus_reset_handler = NCR5380_bus_reset,
1da177e4 LT	65	.can_queue = 32,
	66	.this_id = 7,
	67	.sg_tablesize = SG_ALL,
	68	.cmd_per_lun = 2,
	69	.use_clustering = DISABLE_CLUSTERING,
	70	};
	71
6f039790 GKH	72	static int dmx3191d_probe_one(struct pci_dev *pdev,
6f039790 GKH	73	const struct pci_device_id *id)
1da177e4 LT	74	{
	75	struct Scsi_Host *shost;
	76	unsigned long io;
	77	int error = -ENODEV;
	78
	79	if (pci_enable_device(pdev))
	80	goto out;
	81
	82	io = pci_resource_start(pdev, 0);
	83	if (!request_region(io, DMX3191D_REGION_LEN, DMX3191D_DRIVER_NAME)) {
	84	printk(KERN_ERR "dmx3191: region 0x%lx-0x%lx already reserved\n",
	85	io, io + DMX3191D_REGION_LEN);
	86	goto out_disable_device;
	87	}
	88
	89	shost = scsi_host_alloc(&dmx3191d_driver_template,
	90	sizeof(struct NCR5380_hostdata));
	91	if (!shost)
	92	goto out_release_region;
	93	shost->io_port = io;
1da177e4	94
fd9cd67c FT	95	/* This card does not seem to raise an interrupt on pdev->irq.
	96	* Steam-powered SCSI controllers run without an IRQ anyway.
	97	*/
	98	shost->irq = NO_IRQ;
1da177e4	99
fd9cd67c	100	NCR5380_init(shost, FLAG_NO_PSEUDO_DMA \| FLAG_DTC3181E);
1da177e4 LT	101
	102	pci_set_drvdata(pdev, shost);
	103
	104	error = scsi_add_host(shost, &pdev->dev);
	105	if (error)
fd9cd67c	106	goto out_release_region;
1da177e4 LT	107
	108	scsi_scan_host(shost);
	109	return 0;
	110
1da177e4	111	out_release_region:
c3c026ba	112	release_region(io, DMX3191D_REGION_LEN);
1da177e4 LT	113	out_disable_device:
	114	pci_disable_device(pdev);
	115	out:
	116	return error;
	117	}
	118
6f039790	119	static void dmx3191d_remove_one(struct pci_dev *pdev)
1da177e4 LT	120	{
	121	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	122
	123	scsi_remove_host(shost);
	124
	125	NCR5380_exit(shost);
	126
1da177e4 LT	127	release_region(shost->io_port, DMX3191D_REGION_LEN);
	128	pci_disable_device(pdev);
	129
	130	scsi_host_put(shost);
	131	}
	132
	133	static struct pci_device_id dmx3191d_pci_tbl[] = {
	134	{PCI_VENDOR_ID_DOMEX, PCI_DEVICE_ID_DOMEX_DMX3191D,
	135	PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
	136	{ }
	137	};
	138	MODULE_DEVICE_TABLE(pci, dmx3191d_pci_tbl);
	139
	140	static struct pci_driver dmx3191d_pci_driver = {
	141	.name = DMX3191D_DRIVER_NAME,
	142	.id_table = dmx3191d_pci_tbl,
	143	.probe = dmx3191d_probe_one,
6f039790	144	.remove = dmx3191d_remove_one,
1da177e4 LT	145	};
	146
	147	static int __init dmx3191d_init(void)
	148	{
dcbccbde	149	return pci_register_driver(&dmx3191d_pci_driver);
1da177e4 LT	150	}
	151
	152	static void __exit dmx3191d_exit(void)
	153	{
	154	pci_unregister_driver(&dmx3191d_pci_driver);
	155	}
	156
	157	module_init(dmx3191d_init);
	158	module_exit(dmx3191d_exit);
	159
	160	MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>");
	161	MODULE_DESCRIPTION("Domex DMX3191D SCSI driver");
	162	MODULE_LICENSE("GPL");