[mirror_ubuntu-zesty-kernel.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>

/*
 * Defintions for the generic 5380 driver.
 */
#define AUTOSENSE

#define NCR5380_read(reg)		inb(port + reg)
#define NCR5380_write(reg, value)	outb(value, port + reg)

#define NCR5380_implementation_fields	unsigned int port
#define NCR5380_local_declare()		NCR5380_implementation_fields
#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,
	.eh_device_reset_handler= NCR5380_device_reset,
	.eh_host_reset_handler	= NCR5380_host_reset,
	.can_queue		= 32,
	.this_id		= 7,
	.sg_tablesize		= SG_ALL,
	.cmd_per_lun		= 2,
	.use_clustering		= DISABLE_CLUSTERING,
};

static int __devinit 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, SA_SHIRQ,
				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(shost->io_port, DMX3191D_REGION_LEN);
 out_disable_device:
	pci_disable_device(pdev);
 out:
	return error;
}

static void __devexit 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		= __devexit_p(dmx3191d_remove_one),
};

static int __init dmx3191d_init(void)
{
	return pci_module_init(&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	/*
	34	* Defintions for the generic 5380 driver.
	35	*/
	36	#define AUTOSENSE
	37
	38	#define NCR5380_read(reg) inb(port + reg)
	39	#define NCR5380_write(reg, value) outb(value, port + reg)
	40
	41	#define NCR5380_implementation_fields unsigned int port
	42	#define NCR5380_local_declare() NCR5380_implementation_fields
	43	#define NCR5380_setup(instance) port = instance->io_port
	44
	45	/*
	46	* Includes needed for NCR5380.[ch] (XXX: Move them to NCR5380.h)
	47	*/
	48	#include <linux/delay.h>
	49	#include "scsi.h"
	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",
	61	.queuecommand = NCR5380_queue_command,
	62	.eh_abort_handler = NCR5380_abort,
	63	.eh_bus_reset_handler = NCR5380_bus_reset,
	64	.eh_device_reset_handler= NCR5380_device_reset,
65	.eh_host_reset_handler = NCR5380_host_reset,
66	.can_queue = 32,
67	.this_id = 7,
68	.sg_tablesize = SG_ALL,
69	.cmd_per_lun = 2,
70	.use_clustering = DISABLE_CLUSTERING,
71	};
72
73	static int __devinit dmx3191d_probe_one(struct pci_dev *pdev,
74	const struct pci_device_id *id)
75	{
76	struct Scsi_Host *shost;
77	unsigned long io;
78	int error = -ENODEV;
79
80	if (pci_enable_device(pdev))
81	goto out;
82
83	io = pci_resource_start(pdev, 0);
84	if (!request_region(io, DMX3191D_REGION_LEN, DMX3191D_DRIVER_NAME)) {
85	printk(KERN_ERR "dmx3191: region 0x%lx-0x%lx already reserved\n",
86	io, io + DMX3191D_REGION_LEN);
87	goto out_disable_device;
88	}
89
90	shost = scsi_host_alloc(&dmx3191d_driver_template,
91	sizeof(struct NCR5380_hostdata));
92	if (!shost)
93	goto out_release_region;
94	shost->io_port = io;
95	shost->irq = pdev->irq;
96
97	NCR5380_init(shost, FLAG_NO_PSEUDO_DMA \| FLAG_DTC3181E);
98
99	if (request_irq(pdev->irq, NCR5380_intr, SA_SHIRQ,
100	DMX3191D_DRIVER_NAME, shost)) {
101	/*
102	* Steam powered scsi controllers run without an IRQ anyway
103	*/
104	printk(KERN_WARNING "dmx3191: IRQ %d not available - "
105	"switching to polled mode.\n", pdev->irq);
106	shost->irq = SCSI_IRQ_NONE;
107	}
108
109	pci_set_drvdata(pdev, shost);
110
111	error = scsi_add_host(shost, &pdev->dev);
112	if (error)
113	goto out_free_irq;
114
115	scsi_scan_host(shost);
116	return 0;
117
118	out_free_irq:
119	free_irq(shost->irq, shost);
120	out_release_region:
121	release_region(shost->io_port, DMX3191D_REGION_LEN);
122	out_disable_device:
123	pci_disable_device(pdev);
124	out:
125	return error;
126	}
127
128	static void __devexit dmx3191d_remove_one(struct pci_dev *pdev)
129	{
130	struct Scsi_Host *shost = pci_get_drvdata(pdev);
131
132	scsi_remove_host(shost);
133
134	NCR5380_exit(shost);
135
136	if (shost->irq != SCSI_IRQ_NONE)
137	free_irq(shost->irq, shost);
138	release_region(shost->io_port, DMX3191D_REGION_LEN);
139	pci_disable_device(pdev);
140
141	scsi_host_put(shost);
142	}
143
144	static struct pci_device_id dmx3191d_pci_tbl[] = {
145	{PCI_VENDOR_ID_DOMEX, PCI_DEVICE_ID_DOMEX_DMX3191D,
146	PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
147	{ }
148	};
149	MODULE_DEVICE_TABLE(pci, dmx3191d_pci_tbl);
150
151	static struct pci_driver dmx3191d_pci_driver = {
152	.name = DMX3191D_DRIVER_NAME,
153	.id_table = dmx3191d_pci_tbl,
154	.probe = dmx3191d_probe_one,
155	.remove = __devexit_p(dmx3191d_remove_one),
156	};
157
158	static int __init dmx3191d_init(void)
159	{
160	return pci_module_init(&dmx3191d_pci_driver);
161	}
162
163	static void __exit dmx3191d_exit(void)
164	{
165	pci_unregister_driver(&dmx3191d_pci_driver);
166	}
167
168	module_init(dmx3191d_init);
169	module_exit(dmx3191d_exit);
170
171	MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>");
172	MODULE_DESCRIPTION("Domex DMX3191D SCSI driver");
173	MODULE_LICENSE("GPL");