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 NCR5380_read(reg) inb(hostdata->base + (reg)) 38 #define NCR5380_write(reg, value) outb(value, hostdata->base + (reg)) 39 40 #define NCR5380_dma_xfer_len NCR5380_dma_xfer_none 41 #define NCR5380_dma_recv_setup NCR5380_dma_setup_none 42 #define NCR5380_dma_send_setup NCR5380_dma_setup_none 43 #define NCR5380_dma_residual NCR5380_dma_residual_none 44 45 #define NCR5380_implementation_fields /* none */ 46 47 #include "NCR5380.h" 48 #include "NCR5380.c" 49 50 #define DMX3191D_DRIVER_NAME "dmx3191d" 51 #define DMX3191D_REGION_LEN 8 52 53 54 static struct scsi_host_template dmx3191d_driver_template = { 55 .module = THIS_MODULE, 56 .proc_name = DMX3191D_DRIVER_NAME, 57 .name = "Domex DMX3191D", 58 .info = NCR5380_info, 59 .queuecommand = NCR5380_queue_command, 60 .eh_abort_handler = NCR5380_abort, 61 .eh_host_reset_handler = NCR5380_host_reset, 62 .can_queue = 32, 63 .this_id = 7, 64 .sg_tablesize = SG_ALL, 65 .cmd_per_lun = 2, 66 .dma_boundary = PAGE_SIZE - 1, 67 .cmd_size = NCR5380_CMD_SIZE, 68 }; 69 70 static int dmx3191d_probe_one(struct pci_dev *pdev, 71 const struct pci_device_id *id) 72 { 73 struct Scsi_Host *shost; 74 struct NCR5380_hostdata *hostdata; 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 93 hostdata = shost_priv(shost); 94 hostdata->base = io; 95 96 /* This card does not seem to raise an interrupt on pdev->irq. 97 * Steam-powered SCSI controllers run without an IRQ anyway. 98 */ 99 shost->irq = NO_IRQ; 100 101 error = NCR5380_init(shost, 0); 102 if (error) 103 goto out_host_put; 104 105 NCR5380_maybe_reset_bus(shost); 106 107 pci_set_drvdata(pdev, shost); 108 109 error = scsi_add_host(shost, &pdev->dev); 110 if (error) 111 goto out_exit; 112 113 scsi_scan_host(shost); 114 return 0; 115 116 out_exit: 117 NCR5380_exit(shost); 118 out_host_put: 119 scsi_host_put(shost); 120 out_release_region: 121 release_region(io, DMX3191D_REGION_LEN); 122 out_disable_device: 123 pci_disable_device(pdev); 124 out: 125 return error; 126 } 127 128 static void dmx3191d_remove_one(struct pci_dev *pdev) 129 { 130 struct Scsi_Host *shost = pci_get_drvdata(pdev); 131 struct NCR5380_hostdata *hostdata = shost_priv(shost); 132 unsigned long io = hostdata->base; 133 134 scsi_remove_host(shost); 135 136 NCR5380_exit(shost); 137 scsi_host_put(shost); 138 release_region(io, DMX3191D_REGION_LEN); 139 pci_disable_device(pdev); 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, 153 .remove = dmx3191d_remove_one, 154 }; 155 156 module_pci_driver(dmx3191d_pci_driver); 157 158 MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>"); 159 MODULE_DESCRIPTION("Domex DMX3191D SCSI driver"); 160 MODULE_LICENSE("GPL"); 161