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

// SPDX-License-Identifier: GPL-2.0-or-later
/*
    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.

*/

#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 const 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_host_reset_handler	= NCR5380_host_reset,
	.can_queue		= 32,
	.this_id		= 7,
	.sg_tablesize		= SG_ALL,
	.cmd_per_lun		= 2,
	.dma_boundary		= PAGE_SIZE - 1,
	.cmd_size		= sizeof(struct NCR5380_cmd),
};

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 <dafastidio@libero.it>");
MODULE_DESCRIPTION("Domex DMX3191D SCSI driver");
MODULE_LICENSE("GPL");
Commit	Line	Data
74ba9207	1	// SPDX-License-Identifier: GPL-2.0-or-later
1da177e4 LT	2	/*
	3	dmx3191d.c - driver for the Domex DMX3191D SCSI card.
	4	Copyright (C) 2000 by Massimo Piccioni <dafastidio@libero.it>
	5	Portions Copyright (C) 2004 by Christoph Hellwig <hch@lst.de>
	6
	7	Based on the generic NCR5380 driver by Drew Eckhardt et al.
	8
1da177e4 LT	9	*/
	10
	11	#include <linux/init.h>
	12	#include <linux/ioport.h>
	13	#include <linux/kernel.h>
	14	#include <linux/module.h>
	15	#include <linux/pci.h>
	16	#include <linux/interrupt.h>
	17	#include <asm/io.h>
	18
	19	#include <scsi/scsi_host.h>
	20
	21	/*
6070d81e	22	* Definitions for the generic 5380 driver.
1da177e4	23	*/
1da177e4	24
61e1ce58 FT	25	#define NCR5380_read(reg) inb(hostdata->base + (reg))
61e1ce58 FT	26	#define NCR5380_write(reg, value) outb(value, hostdata->base + (reg))
1da177e4	27
4a98f896 FT	28	#define NCR5380_dma_xfer_len NCR5380_dma_xfer_none
	29	#define NCR5380_dma_recv_setup NCR5380_dma_setup_none
	30	#define NCR5380_dma_send_setup NCR5380_dma_setup_none
	31	#define NCR5380_dma_residual NCR5380_dma_residual_none
f825e40b	32
acfc8cad	33	#define NCR5380_implementation_fields /* none */
1da177e4	34
1da177e4 LT	35	#include "NCR5380.h"
	36	#include "NCR5380.c"
	37
	38	#define DMX3191D_DRIVER_NAME "dmx3191d"
	39	#define DMX3191D_REGION_LEN 8
	40
	41
b816c6bf	42	static const struct scsi_host_template dmx3191d_driver_template = {
aa2e2cb1	43	.module = THIS_MODULE,
1da177e4 LT	44	.proc_name = DMX3191D_DRIVER_NAME,
1da177e4 LT	45	.name = "Domex DMX3191D",
8c32513b	46	.info = NCR5380_info,
1da177e4 LT	47	.queuecommand = NCR5380_queue_command,
1da177e4 LT	48	.eh_abort_handler = NCR5380_abort,
12e5fc66	49	.eh_host_reset_handler = NCR5380_host_reset,
1da177e4 LT	50	.can_queue = 32,
	51	.this_id = 7,
	52	.sg_tablesize = SG_ALL,
	53	.cmd_per_lun = 2,
4af14d11	54	.dma_boundary = PAGE_SIZE - 1,
cd614642	55	.cmd_size = sizeof(struct NCR5380_cmd),
1da177e4 LT	56	};
1da177e4 LT	57
6f039790 GKH	58	static int dmx3191d_probe_one(struct pci_dev *pdev,
6f039790 GKH	59	const struct pci_device_id *id)
1da177e4 LT	60	{
1da177e4 LT	61	struct Scsi_Host *shost;
820682b1	62	struct NCR5380_hostdata *hostdata;
1da177e4 LT	63	unsigned long io;
	64	int error = -ENODEV;
	65
	66	if (pci_enable_device(pdev))
	67	goto out;
	68
	69	io = pci_resource_start(pdev, 0);
	70	if (!request_region(io, DMX3191D_REGION_LEN, DMX3191D_DRIVER_NAME)) {
	71	printk(KERN_ERR "dmx3191: region 0x%lx-0x%lx already reserved\n",
	72	io, io + DMX3191D_REGION_LEN);
	73	goto out_disable_device;
	74	}
	75
	76	shost = scsi_host_alloc(&dmx3191d_driver_template,
	77	sizeof(struct NCR5380_hostdata));
	78	if (!shost)
	79	goto out_release_region;
820682b1 FT	80
	81	hostdata = shost_priv(shost);
	82	hostdata->base = io;
1da177e4	83
fd9cd67c FT	84	/* This card does not seem to raise an interrupt on pdev->irq.
	85	* Steam-powered SCSI controllers run without an IRQ anyway.
	86	*/
	87	shost->irq = NO_IRQ;
1da177e4	88
7e9ec8d9	89	error = NCR5380_init(shost, 0);
0ad0eff9 FT	90	if (error)
0ad0eff9 FT	91	goto out_host_put;
1da177e4	92
b6488f97 FT	93	NCR5380_maybe_reset_bus(shost);
b6488f97 FT	94
1da177e4 LT	95	pci_set_drvdata(pdev, shost);
	96
	97	error = scsi_add_host(shost, &pdev->dev);
	98	if (error)
0ad0eff9	99	goto out_exit;
1da177e4 LT	100
	101	scsi_scan_host(shost);
	102	return 0;
	103
0ad0eff9 FT	104	out_exit:
	105	NCR5380_exit(shost);
	106	out_host_put:
	107	scsi_host_put(shost);
1da177e4	108	out_release_region:
c3c026ba	109	release_region(io, DMX3191D_REGION_LEN);
1da177e4 LT	110	out_disable_device:
	111	pci_disable_device(pdev);
	112	out:
	113	return error;
	114	}
	115
6f039790	116	static void dmx3191d_remove_one(struct pci_dev *pdev)
1da177e4 LT	117	{
1da177e4 LT	118	struct Scsi_Host *shost = pci_get_drvdata(pdev);
820682b1 FT	119	struct NCR5380_hostdata *hostdata = shost_priv(shost);
820682b1 FT	120	unsigned long io = hostdata->base;
1da177e4 LT	121
	122	scsi_remove_host(shost);
	123
	124	NCR5380_exit(shost);
1da177e4	125	scsi_host_put(shost);
0ad0eff9 FT	126	release_region(io, DMX3191D_REGION_LEN);
0ad0eff9 FT	127	pci_disable_device(pdev);
1da177e4 LT	128	}
	129
	130	static struct pci_device_id dmx3191d_pci_tbl[] = {
	131	{PCI_VENDOR_ID_DOMEX, PCI_DEVICE_ID_DOMEX_DMX3191D,
	132	PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
	133	{ }
	134	};
	135	MODULE_DEVICE_TABLE(pci, dmx3191d_pci_tbl);
	136
	137	static struct pci_driver dmx3191d_pci_driver = {
	138	.name = DMX3191D_DRIVER_NAME,
	139	.id_table = dmx3191d_pci_tbl,
	140	.probe = dmx3191d_probe_one,
6f039790	141	.remove = dmx3191d_remove_one,
1da177e4 LT	142	};
1da177e4 LT	143
5e315016	144	module_pci_driver(dmx3191d_pci_driver);
1da177e4 LT	145
	146	MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>");
	147	MODULE_DESCRIPTION("Domex DMX3191D SCSI driver");
	148	MODULE_LICENSE("GPL");