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1// SPDX-License-Identifier: GPL-2.0-or-later2/*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 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/*22 * Definitions for the generic 5380 driver.23 */24 25#define NCR5380_read(reg) inb(hostdata->base + (reg))26#define NCR5380_write(reg, value) outb(value, hostdata->base + (reg))27 28#define NCR5380_dma_xfer_len NCR5380_dma_xfer_none29#define NCR5380_dma_recv_setup NCR5380_dma_setup_none30#define NCR5380_dma_send_setup NCR5380_dma_setup_none31#define NCR5380_dma_residual NCR5380_dma_residual_none32 33#define NCR5380_implementation_fields /* none */34 35#include "NCR5380.h"36#include "NCR5380.c"37 38#define DMX3191D_DRIVER_NAME "dmx3191d"39#define DMX3191D_REGION_LEN 840 41 42static const struct scsi_host_template dmx3191d_driver_template = {43 .module = THIS_MODULE,44 .proc_name = DMX3191D_DRIVER_NAME,45 .name = "Domex DMX3191D",46 .info = NCR5380_info,47 .queuecommand = NCR5380_queue_command,48 .eh_abort_handler = NCR5380_abort,49 .eh_host_reset_handler = NCR5380_host_reset,50 .can_queue = 32,51 .this_id = 7,52 .sg_tablesize = SG_ALL,53 .cmd_per_lun = 2,54 .dma_boundary = PAGE_SIZE - 1,55 .cmd_size = sizeof(struct NCR5380_cmd),56};57 58static int dmx3191d_probe_one(struct pci_dev *pdev,59 const struct pci_device_id *id)60{61 struct Scsi_Host *shost;62 struct NCR5380_hostdata *hostdata;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; 80 81 hostdata = shost_priv(shost);82 hostdata->base = io;83 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;88 89 error = NCR5380_init(shost, 0);90 if (error)91 goto out_host_put;92 93 NCR5380_maybe_reset_bus(shost);94 95 pci_set_drvdata(pdev, shost);96 97 error = scsi_add_host(shost, &pdev->dev);98 if (error)99 goto out_exit;100 101 scsi_scan_host(shost);102 return 0;103 104out_exit:105 NCR5380_exit(shost);106out_host_put:107 scsi_host_put(shost);108 out_release_region:109 release_region(io, DMX3191D_REGION_LEN);110 out_disable_device:111 pci_disable_device(pdev);112 out:113 return error;114}115 116static void dmx3191d_remove_one(struct pci_dev *pdev)117{118 struct Scsi_Host *shost = pci_get_drvdata(pdev);119 struct NCR5380_hostdata *hostdata = shost_priv(shost);120 unsigned long io = hostdata->base;121 122 scsi_remove_host(shost);123 124 NCR5380_exit(shost);125 scsi_host_put(shost);126 release_region(io, DMX3191D_REGION_LEN);127 pci_disable_device(pdev);128}129 130static 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};135MODULE_DEVICE_TABLE(pci, dmx3191d_pci_tbl);136 137static struct pci_driver dmx3191d_pci_driver = {138 .name = DMX3191D_DRIVER_NAME,139 .id_table = dmx3191d_pci_tbl,140 .probe = dmx3191d_probe_one,141 .remove = dmx3191d_remove_one,142};143 144module_pci_driver(dmx3191d_pci_driver);145 146MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>");147MODULE_DESCRIPTION("Domex DMX3191D SCSI driver");148MODULE_LICENSE("GPL");149