174ba9207SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-or-later
21da177e4SLinus Torvalds /*
31da177e4SLinus Torvalds dmx3191d.c - driver for the Domex DMX3191D SCSI card.
41da177e4SLinus Torvalds Copyright (C) 2000 by Massimo Piccioni <dafastidio@libero.it>
51da177e4SLinus Torvalds Portions Copyright (C) 2004 by Christoph Hellwig <hch@lst.de>
61da177e4SLinus Torvalds
71da177e4SLinus Torvalds Based on the generic NCR5380 driver by Drew Eckhardt et al.
81da177e4SLinus Torvalds
91da177e4SLinus Torvalds */
101da177e4SLinus Torvalds
111da177e4SLinus Torvalds #include <linux/init.h>
121da177e4SLinus Torvalds #include <linux/ioport.h>
131da177e4SLinus Torvalds #include <linux/kernel.h>
141da177e4SLinus Torvalds #include <linux/module.h>
151da177e4SLinus Torvalds #include <linux/pci.h>
161da177e4SLinus Torvalds #include <linux/interrupt.h>
171da177e4SLinus Torvalds #include <asm/io.h>
181da177e4SLinus Torvalds
191da177e4SLinus Torvalds #include <scsi/scsi_host.h>
201da177e4SLinus Torvalds
211da177e4SLinus Torvalds /*
226070d81eSAdam Buchbinder * Definitions for the generic 5380 driver.
231da177e4SLinus Torvalds */
241da177e4SLinus Torvalds
2561e1ce58SFinn Thain #define NCR5380_read(reg) inb(hostdata->base + (reg))
2661e1ce58SFinn Thain #define NCR5380_write(reg, value) outb(value, hostdata->base + (reg))
271da177e4SLinus Torvalds
284a98f896SFinn Thain #define NCR5380_dma_xfer_len NCR5380_dma_xfer_none
294a98f896SFinn Thain #define NCR5380_dma_recv_setup NCR5380_dma_setup_none
304a98f896SFinn Thain #define NCR5380_dma_send_setup NCR5380_dma_setup_none
314a98f896SFinn Thain #define NCR5380_dma_residual NCR5380_dma_residual_none
32f825e40bSFinn Thain
33acfc8cadSFinn Thain #define NCR5380_implementation_fields /* none */
341da177e4SLinus Torvalds
351da177e4SLinus Torvalds #include "NCR5380.h"
361da177e4SLinus Torvalds #include "NCR5380.c"
371da177e4SLinus Torvalds
381da177e4SLinus Torvalds #define DMX3191D_DRIVER_NAME "dmx3191d"
391da177e4SLinus Torvalds #define DMX3191D_REGION_LEN 8
401da177e4SLinus Torvalds
411da177e4SLinus Torvalds
42*b816c6bfSBart Van Assche static const struct scsi_host_template dmx3191d_driver_template = {
43aa2e2cb1SFinn Thain .module = THIS_MODULE,
441da177e4SLinus Torvalds .proc_name = DMX3191D_DRIVER_NAME,
451da177e4SLinus Torvalds .name = "Domex DMX3191D",
468c32513bSFinn Thain .info = NCR5380_info,
471da177e4SLinus Torvalds .queuecommand = NCR5380_queue_command,
481da177e4SLinus Torvalds .eh_abort_handler = NCR5380_abort,
4912e5fc66SHannes Reinecke .eh_host_reset_handler = NCR5380_host_reset,
501da177e4SLinus Torvalds .can_queue = 32,
511da177e4SLinus Torvalds .this_id = 7,
521da177e4SLinus Torvalds .sg_tablesize = SG_ALL,
531da177e4SLinus Torvalds .cmd_per_lun = 2,
544af14d11SChristoph Hellwig .dma_boundary = PAGE_SIZE - 1,
55cd614642SBart Van Assche .cmd_size = sizeof(struct NCR5380_cmd),
561da177e4SLinus Torvalds };
571da177e4SLinus Torvalds
dmx3191d_probe_one(struct pci_dev * pdev,const struct pci_device_id * id)586f039790SGreg Kroah-Hartman static int dmx3191d_probe_one(struct pci_dev *pdev,
591da177e4SLinus Torvalds const struct pci_device_id *id)
601da177e4SLinus Torvalds {
611da177e4SLinus Torvalds struct Scsi_Host *shost;
62820682b1SFinn Thain struct NCR5380_hostdata *hostdata;
631da177e4SLinus Torvalds unsigned long io;
641da177e4SLinus Torvalds int error = -ENODEV;
651da177e4SLinus Torvalds
661da177e4SLinus Torvalds if (pci_enable_device(pdev))
671da177e4SLinus Torvalds goto out;
681da177e4SLinus Torvalds
691da177e4SLinus Torvalds io = pci_resource_start(pdev, 0);
701da177e4SLinus Torvalds if (!request_region(io, DMX3191D_REGION_LEN, DMX3191D_DRIVER_NAME)) {
711da177e4SLinus Torvalds printk(KERN_ERR "dmx3191: region 0x%lx-0x%lx already reserved\n",
721da177e4SLinus Torvalds io, io + DMX3191D_REGION_LEN);
731da177e4SLinus Torvalds goto out_disable_device;
741da177e4SLinus Torvalds }
751da177e4SLinus Torvalds
761da177e4SLinus Torvalds shost = scsi_host_alloc(&dmx3191d_driver_template,
771da177e4SLinus Torvalds sizeof(struct NCR5380_hostdata));
781da177e4SLinus Torvalds if (!shost)
791da177e4SLinus Torvalds goto out_release_region;
80820682b1SFinn Thain
81820682b1SFinn Thain hostdata = shost_priv(shost);
82820682b1SFinn Thain hostdata->base = io;
83fd9cd67cSFinn Thain
84fd9cd67cSFinn Thain /* This card does not seem to raise an interrupt on pdev->irq.
85fd9cd67cSFinn Thain * Steam-powered SCSI controllers run without an IRQ anyway.
86fd9cd67cSFinn Thain */
87fd9cd67cSFinn Thain shost->irq = NO_IRQ;
881da177e4SLinus Torvalds
897e9ec8d9SFinn Thain error = NCR5380_init(shost, 0);
900ad0eff9SFinn Thain if (error)
910ad0eff9SFinn Thain goto out_host_put;
921da177e4SLinus Torvalds
93b6488f97SFinn Thain NCR5380_maybe_reset_bus(shost);
94b6488f97SFinn Thain
951da177e4SLinus Torvalds pci_set_drvdata(pdev, shost);
961da177e4SLinus Torvalds
971da177e4SLinus Torvalds error = scsi_add_host(shost, &pdev->dev);
981da177e4SLinus Torvalds if (error)
990ad0eff9SFinn Thain goto out_exit;
1001da177e4SLinus Torvalds
1011da177e4SLinus Torvalds scsi_scan_host(shost);
1021da177e4SLinus Torvalds return 0;
1031da177e4SLinus Torvalds
1040ad0eff9SFinn Thain out_exit:
1050ad0eff9SFinn Thain NCR5380_exit(shost);
1060ad0eff9SFinn Thain out_host_put:
1070ad0eff9SFinn Thain scsi_host_put(shost);
1081da177e4SLinus Torvalds out_release_region:
109c3c026baSAdrian Bunk release_region(io, DMX3191D_REGION_LEN);
1101da177e4SLinus Torvalds out_disable_device:
1111da177e4SLinus Torvalds pci_disable_device(pdev);
1121da177e4SLinus Torvalds out:
1131da177e4SLinus Torvalds return error;
1141da177e4SLinus Torvalds }
1151da177e4SLinus Torvalds
dmx3191d_remove_one(struct pci_dev * pdev)1166f039790SGreg Kroah-Hartman static void dmx3191d_remove_one(struct pci_dev *pdev)
1171da177e4SLinus Torvalds {
1181da177e4SLinus Torvalds struct Scsi_Host *shost = pci_get_drvdata(pdev);
119820682b1SFinn Thain struct NCR5380_hostdata *hostdata = shost_priv(shost);
120820682b1SFinn Thain unsigned long io = hostdata->base;
1211da177e4SLinus Torvalds
1221da177e4SLinus Torvalds scsi_remove_host(shost);
1231da177e4SLinus Torvalds
1241da177e4SLinus Torvalds NCR5380_exit(shost);
1251da177e4SLinus Torvalds scsi_host_put(shost);
1260ad0eff9SFinn Thain release_region(io, DMX3191D_REGION_LEN);
1270ad0eff9SFinn Thain pci_disable_device(pdev);
1281da177e4SLinus Torvalds }
1291da177e4SLinus Torvalds
1301da177e4SLinus Torvalds static struct pci_device_id dmx3191d_pci_tbl[] = {
1311da177e4SLinus Torvalds {PCI_VENDOR_ID_DOMEX, PCI_DEVICE_ID_DOMEX_DMX3191D,
1321da177e4SLinus Torvalds PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
1331da177e4SLinus Torvalds { }
1341da177e4SLinus Torvalds };
1351da177e4SLinus Torvalds MODULE_DEVICE_TABLE(pci, dmx3191d_pci_tbl);
1361da177e4SLinus Torvalds
1371da177e4SLinus Torvalds static struct pci_driver dmx3191d_pci_driver = {
1381da177e4SLinus Torvalds .name = DMX3191D_DRIVER_NAME,
1391da177e4SLinus Torvalds .id_table = dmx3191d_pci_tbl,
1401da177e4SLinus Torvalds .probe = dmx3191d_probe_one,
1416f039790SGreg Kroah-Hartman .remove = dmx3191d_remove_one,
1421da177e4SLinus Torvalds };
1431da177e4SLinus Torvalds
1445e315016SGeliang Tang module_pci_driver(dmx3191d_pci_driver);
1451da177e4SLinus Torvalds
1461da177e4SLinus Torvalds MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>");
1471da177e4SLinus Torvalds MODULE_DESCRIPTION("Domex DMX3191D SCSI driver");
1481da177e4SLinus Torvalds MODULE_LICENSE("GPL");
149