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 /* 34 * Definitions for the generic 5380 driver. 35 */ 36 37 #define DONT_USE_INTR 38 39 #define NCR5380_read(reg) inb(port + reg) 40 #define NCR5380_write(reg, value) outb(value, port + reg) 41 42 #define NCR5380_implementation_fields /* none */ 43 #define NCR5380_local_declare() unsigned int port 44 #define NCR5380_setup(instance) port = instance->io_port 45 46 /* 47 * Includes needed for NCR5380.[ch] (XXX: Move them to NCR5380.h) 48 */ 49 #include <linux/delay.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 .info = NCR5380_info, 62 .queuecommand = NCR5380_queue_command, 63 .eh_abort_handler = NCR5380_abort, 64 .eh_bus_reset_handler = NCR5380_bus_reset, 65 .can_queue = 32, 66 .this_id = 7, 67 .sg_tablesize = SG_ALL, 68 .cmd_per_lun = 2, 69 .use_clustering = DISABLE_CLUSTERING, 70 }; 71 72 static int dmx3191d_probe_one(struct pci_dev *pdev, 73 const struct pci_device_id *id) 74 { 75 struct Scsi_Host *shost; 76 unsigned long io; 77 int error = -ENODEV; 78 79 if (pci_enable_device(pdev)) 80 goto out; 81 82 io = pci_resource_start(pdev, 0); 83 if (!request_region(io, DMX3191D_REGION_LEN, DMX3191D_DRIVER_NAME)) { 84 printk(KERN_ERR "dmx3191: region 0x%lx-0x%lx already reserved\n", 85 io, io + DMX3191D_REGION_LEN); 86 goto out_disable_device; 87 } 88 89 shost = scsi_host_alloc(&dmx3191d_driver_template, 90 sizeof(struct NCR5380_hostdata)); 91 if (!shost) 92 goto out_release_region; 93 shost->io_port = io; 94 95 /* This card does not seem to raise an interrupt on pdev->irq. 96 * Steam-powered SCSI controllers run without an IRQ anyway. 97 */ 98 shost->irq = NO_IRQ; 99 100 NCR5380_init(shost, FLAG_NO_PSEUDO_DMA | FLAG_DTC3181E); 101 102 pci_set_drvdata(pdev, shost); 103 104 error = scsi_add_host(shost, &pdev->dev); 105 if (error) 106 goto out_release_region; 107 108 scsi_scan_host(shost); 109 return 0; 110 111 out_release_region: 112 release_region(io, DMX3191D_REGION_LEN); 113 out_disable_device: 114 pci_disable_device(pdev); 115 out: 116 return error; 117 } 118 119 static void dmx3191d_remove_one(struct pci_dev *pdev) 120 { 121 struct Scsi_Host *shost = pci_get_drvdata(pdev); 122 123 scsi_remove_host(shost); 124 125 NCR5380_exit(shost); 126 127 release_region(shost->io_port, DMX3191D_REGION_LEN); 128 pci_disable_device(pdev); 129 130 scsi_host_put(shost); 131 } 132 133 static struct pci_device_id dmx3191d_pci_tbl[] = { 134 {PCI_VENDOR_ID_DOMEX, PCI_DEVICE_ID_DOMEX_DMX3191D, 135 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4}, 136 { } 137 }; 138 MODULE_DEVICE_TABLE(pci, dmx3191d_pci_tbl); 139 140 static struct pci_driver dmx3191d_pci_driver = { 141 .name = DMX3191D_DRIVER_NAME, 142 .id_table = dmx3191d_pci_tbl, 143 .probe = dmx3191d_probe_one, 144 .remove = dmx3191d_remove_one, 145 }; 146 147 static int __init dmx3191d_init(void) 148 { 149 return pci_register_driver(&dmx3191d_pci_driver); 150 } 151 152 static void __exit dmx3191d_exit(void) 153 { 154 pci_unregister_driver(&dmx3191d_pci_driver); 155 } 156 157 module_init(dmx3191d_init); 158 module_exit(dmx3191d_exit); 159 160 MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>"); 161 MODULE_DESCRIPTION("Domex DMX3191D SCSI driver"); 162 MODULE_LICENSE("GPL"); 163