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

/*
    dmx3191d.c - driver for the Domex DMX3191D SCSI card.
    Copyright (C) 2000 by Massimo Piccioni <[email protected]>
    Portions Copyright (C) 2004 by Christoph Hellwig <[email protected]>

    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(hostdata->base + (reg))
#define NCR5380_write(reg, value)	outb(value, hostdata->base + (reg))

#define NCR5380_dma_xfer_len		NCR5380_dma_xfer_none
#define NCR5380_dma_recv_setup		NCR5380_dma_setup_none
#define NCR5380_dma_send_setup		NCR5380_dma_setup_none
#define NCR5380_dma_residual		NCR5380_dma_residual_none

#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,
	.cmd_size		= NCR5380_CMD_SIZE,
};

static int dmx3191d_probe_one(struct pci_dev *pdev,
			      const struct pci_device_id *id)
{
	struct Scsi_Host *shost;
	struct NCR5380_hostdata *hostdata;
	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;       

	hostdata = shost_priv(shost);
	hostdata->base = 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, 0);
	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);
	struct NCR5380_hostdata *hostdata = shost_priv(shost);
	unsigned long io = hostdata->base;

	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,
};

module_pci_driver(dmx3191d_pci_driver);

MODULE_AUTHOR("Massimo Piccioni <[email protected]>");
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 <[email protected]>
	4	Portions Copyright (C) 2004 by Christoph Hellwig <[email protected]>
	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
61e1ce58 FT	37	#define NCR5380_read(reg) inb(hostdata->base + (reg))
61e1ce58 FT	38	#define NCR5380_write(reg, value) outb(value, hostdata->base + (reg))
1da177e4	39
4a98f896 FT	40	#define NCR5380_dma_xfer_len NCR5380_dma_xfer_none
	41	#define NCR5380_dma_recv_setup NCR5380_dma_setup_none
	42	#define NCR5380_dma_send_setup NCR5380_dma_setup_none
	43	#define NCR5380_dma_residual NCR5380_dma_residual_none
f825e40b	44
acfc8cad	45	#define NCR5380_implementation_fields /* none */
1da177e4	46
1da177e4 LT	47	#include "NCR5380.h"
	48	#include "NCR5380.c"
	49
	50	#define DMX3191D_DRIVER_NAME "dmx3191d"
	51	#define DMX3191D_REGION_LEN 8
	52
	53
	54	static struct scsi_host_template dmx3191d_driver_template = {
aa2e2cb1	55	.module = THIS_MODULE,
1da177e4 LT	56	.proc_name = DMX3191D_DRIVER_NAME,
1da177e4 LT	57	.name = "Domex DMX3191D",
8c32513b	58	.info = NCR5380_info,
1da177e4 LT	59	.queuecommand = NCR5380_queue_command,
	60	.eh_abort_handler = NCR5380_abort,
	61	.eh_bus_reset_handler = NCR5380_bus_reset,
1da177e4 LT	62	.can_queue = 32,
	63	.this_id = 7,
	64	.sg_tablesize = SG_ALL,
	65	.cmd_per_lun = 2,
	66	.use_clustering = DISABLE_CLUSTERING,
32b26a10	67	.cmd_size = NCR5380_CMD_SIZE,
1da177e4 LT	68	};
1da177e4 LT	69
6f039790 GKH	70	static int dmx3191d_probe_one(struct pci_dev *pdev,
6f039790 GKH	71	const struct pci_device_id *id)
1da177e4 LT	72	{
1da177e4 LT	73	struct Scsi_Host *shost;
820682b1	74	struct NCR5380_hostdata *hostdata;
1da177e4 LT	75	unsigned long io;
	76	int error = -ENODEV;
	77
	78	if (pci_enable_device(pdev))
	79	goto out;
	80
	81	io = pci_resource_start(pdev, 0);
	82	if (!request_region(io, DMX3191D_REGION_LEN, DMX3191D_DRIVER_NAME)) {
	83	printk(KERN_ERR "dmx3191: region 0x%lx-0x%lx already reserved\n",
	84	io, io + DMX3191D_REGION_LEN);
	85	goto out_disable_device;
	86	}
	87
	88	shost = scsi_host_alloc(&dmx3191d_driver_template,
	89	sizeof(struct NCR5380_hostdata));
	90	if (!shost)
	91	goto out_release_region;
820682b1 FT	92
	93	hostdata = shost_priv(shost);
	94	hostdata->base = io;
1da177e4	95
fd9cd67c FT	96	/* This card does not seem to raise an interrupt on pdev->irq.
	97	* Steam-powered SCSI controllers run without an IRQ anyway.
	98	*/
	99	shost->irq = NO_IRQ;
1da177e4	100
7e9ec8d9	101	error = NCR5380_init(shost, 0);
0ad0eff9 FT	102	if (error)
0ad0eff9 FT	103	goto out_host_put;
1da177e4	104
b6488f97 FT	105	NCR5380_maybe_reset_bus(shost);
b6488f97 FT	106
1da177e4 LT	107	pci_set_drvdata(pdev, shost);
	108
	109	error = scsi_add_host(shost, &pdev->dev);
	110	if (error)
0ad0eff9	111	goto out_exit;
1da177e4 LT	112
	113	scsi_scan_host(shost);
	114	return 0;
	115
0ad0eff9 FT	116	out_exit:
	117	NCR5380_exit(shost);
	118	out_host_put:
	119	scsi_host_put(shost);
1da177e4	120	out_release_region:
c3c026ba	121	release_region(io, DMX3191D_REGION_LEN);
1da177e4 LT	122	out_disable_device:
	123	pci_disable_device(pdev);
	124	out:
	125	return error;
	126	}
	127
6f039790	128	static void dmx3191d_remove_one(struct pci_dev *pdev)
1da177e4 LT	129	{
1da177e4 LT	130	struct Scsi_Host *shost = pci_get_drvdata(pdev);
820682b1 FT	131	struct NCR5380_hostdata *hostdata = shost_priv(shost);
820682b1 FT	132	unsigned long io = hostdata->base;
1da177e4 LT	133
	134	scsi_remove_host(shost);
	135
	136	NCR5380_exit(shost);
1da177e4	137	scsi_host_put(shost);
0ad0eff9 FT	138	release_region(io, DMX3191D_REGION_LEN);
0ad0eff9 FT	139	pci_disable_device(pdev);
1da177e4 LT	140	}
	141
	142	static struct pci_device_id dmx3191d_pci_tbl[] = {
	143	{PCI_VENDOR_ID_DOMEX, PCI_DEVICE_ID_DOMEX_DMX3191D,
	144	PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
	145	{ }
	146	};
	147	MODULE_DEVICE_TABLE(pci, dmx3191d_pci_tbl);
	148
	149	static struct pci_driver dmx3191d_pci_driver = {
	150	.name = DMX3191D_DRIVER_NAME,
	151	.id_table = dmx3191d_pci_tbl,
	152	.probe = dmx3191d_probe_one,
6f039790	153	.remove = dmx3191d_remove_one,
1da177e4 LT	154	};
1da177e4 LT	155
5e315016	156	module_pci_driver(dmx3191d_pci_driver);
1da177e4 LT	157
	158	MODULE_AUTHOR("Massimo Piccioni <[email protected]>");
	159	MODULE_DESCRIPTION("Domex DMX3191D SCSI driver");
	160	MODULE_LICENSE("GPL");