[GitHub/mt8127/android_kernel_alcatel_ttab.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 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,
	.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;
	shost->irq = pdev->irq;

	NCR5380_init(shost, FLAG_NO_PSEUDO_DMA | FLAG_DTC3181E);

	if (request_irq(pdev->irq, NCR5380_intr, IRQF_SHARED,
				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(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);

	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		= 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 LT	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,
1da177e4 LT	64	.can_queue = 32,
	65	.this_id = 7,
	66	.sg_tablesize = SG_ALL,
	67	.cmd_per_lun = 2,
	68	.use_clustering = DISABLE_CLUSTERING,
	69	};
	70
6f039790 GKH	71	static int dmx3191d_probe_one(struct pci_dev *pdev,
6f039790 GKH	72	const struct pci_device_id *id)
1da177e4 LT	73	{
	74	struct Scsi_Host *shost;
	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;
	92	shost->io_port = io;
	93	shost->irq = pdev->irq;
	94
	95	NCR5380_init(shost, FLAG_NO_PSEUDO_DMA \| FLAG_DTC3181E);
	96
1d6f359a	97	if (request_irq(pdev->irq, NCR5380_intr, IRQF_SHARED,
1da177e4 LT	98	DMX3191D_DRIVER_NAME, shost)) {
	99	/*
	100	* Steam powered scsi controllers run without an IRQ anyway
	101	*/
	102	printk(KERN_WARNING "dmx3191: IRQ %d not available - "
	103	"switching to polled mode.\n", pdev->irq);
	104	shost->irq = SCSI_IRQ_NONE;
	105	}
	106
	107	pci_set_drvdata(pdev, shost);
	108
	109	error = scsi_add_host(shost, &pdev->dev);
	110	if (error)
	111	goto out_free_irq;
	112
	113	scsi_scan_host(shost);
	114	return 0;
	115
	116	out_free_irq:
	117	free_irq(shost->irq, shost);
	118	out_release_region:
c3c026ba	119	release_region(io, DMX3191D_REGION_LEN);
1da177e4 LT	120	out_disable_device:
	121	pci_disable_device(pdev);
	122	out:
	123	return error;
	124	}
	125
6f039790	126	static void dmx3191d_remove_one(struct pci_dev *pdev)
1da177e4 LT	127	{
	128	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	129
	130	scsi_remove_host(shost);
	131
	132	NCR5380_exit(shost);
	133
	134	if (shost->irq != SCSI_IRQ_NONE)
	135	free_irq(shost->irq, shost);
	136	release_region(shost->io_port, DMX3191D_REGION_LEN);
	137	pci_disable_device(pdev);
	138
	139	scsi_host_put(shost);
	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	};
	155
	156	static int __init dmx3191d_init(void)
	157	{
dcbccbde	158	return pci_register_driver(&dmx3191d_pci_driver);
1da177e4 LT	159	}
	160
	161	static void __exit dmx3191d_exit(void)
	162	{
	163	pci_unregister_driver(&dmx3191d_pci_driver);
	164	}
	165
	166	module_init(dmx3191d_init);
	167	module_exit(dmx3191d_exit);
	168
	169	MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>");
	170	MODULE_DESCRIPTION("Domex DMX3191D SCSI driver");
	171	MODULE_LICENSE("GPL");