drivers/scsi/pcmcia/fdomain_stub.c

   1 /*======================================================================
   2
   3     A driver for Future Domain-compatible PCMCIA SCSI cards
   4
   5     fdomain_cs.c 1.47 2001/10/13 00:08:52
   6
   7     The contents of this file are subject to the Mozilla Public
   8     License Version 1.1 (the "License"); you may not use this file
   9     except in compliance with the License. You may obtain a copy of
  10     the License at http://www.mozilla.org/MPL/
  11
  12     Software distributed under the License is distributed on an "AS
  13     IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
  14     implied. See the License for the specific language governing
  15     rights and limitations under the License.
  16
  17     The initial developer of the original code is David A. Hinds
  18     <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
  19     are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
  20
  21     Alternatively, the contents of this file may be used under the
  22     terms of the GNU General Public License version 2 (the "GPL"), in
  23     which case the provisions of the GPL are applicable instead of the
  24     above.  If you wish to allow the use of your version of this file
  25     only under the terms of the GPL and not to allow others to use
  26     your version of this file under the MPL, indicate your decision
  27     by deleting the provisions above and replace them with the notice
  28     and other provisions required by the GPL.  If you do not delete
  29     the provisions above, a recipient may use your version of this
  30     file under either the MPL or the GPL.
  31
  32 ======================================================================*/
  33
  34 #include <linux/module.h>
  35 #include <linux/init.h>
  36 #include <linux/kernel.h>
  37 #include <linux/slab.h>
  38 #include <linux/string.h>
  39 #include <linux/ioport.h>
  40 #include <scsi/scsi.h>
  41 #include <linux/major.h>
  42 #include <linux/blkdev.h>
  43 #include <scsi/scsi_ioctl.h>
  44
  45 #include "scsi.h"
  46 #include <scsi/scsi_host.h>
  47 #include "fdomain.h"
  48
  49 #include <pcmcia/cs_types.h>
  50 #include <pcmcia/cs.h>
  51 #include <pcmcia/cistpl.h>
  52 #include <pcmcia/ds.h>
  53
  54 /*====================================================================*/
  55
  56 /* Module parameters */
  57
  58 MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
  59 MODULE_DESCRIPTION("Future Domain PCMCIA SCSI driver");
  60 MODULE_LICENSE("Dual MPL/GPL");
  61
  62 /*====================================================================*/
  63
  64 typedef struct scsi_info_t {
  65         struct pcmcia_device    *p_dev;
  66     dev_node_t          node;
  67     struct Scsi_Host    *host;
  68 } scsi_info_t;
  69
  70
  71 static void fdomain_release(struct pcmcia_device *link);
  72 static void fdomain_detach(struct pcmcia_device *p_dev);
  73 static int fdomain_config(struct pcmcia_device *link);
  74
  75 static int fdomain_probe(struct pcmcia_device *link)
  76 {
  77         scsi_info_t *info;
  78
  79         dev_dbg(&link->dev, "fdomain_attach()\n");
  80
  81         /* Create new SCSI device */
  82         info = kzalloc(sizeof(*info), GFP_KERNEL);
  83         if (!info)
  84                 return -ENOMEM;
  85
  86         info->p_dev = link;
  87         link->priv = info;
  88         link->io.NumPorts1 = 0x10;
  89         link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
  90         link->io.IOAddrLines = 10;
  91         link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
  92         link->conf.Attributes = CONF_ENABLE_IRQ;
  93         link->conf.IntType = INT_MEMORY_AND_IO;
  94         link->conf.Present = PRESENT_OPTION;
  95
  96         return fdomain_config(link);
  97 } /* fdomain_attach */
  98
  99 /*====================================================================*/
 100
 101 static void fdomain_detach(struct pcmcia_device *link)
 102 {
 103         dev_dbg(&link->dev, "fdomain_detach\n");
 104
 105         fdomain_release(link);
 106
 107         kfree(link->priv);
 108 } /* fdomain_detach */
 109
 110 /*====================================================================*/
 111
 112 static int fdomain_config_check(struct pcmcia_device *p_dev,
 113                                 cistpl_cftable_entry_t *cfg,
 114                                 cistpl_cftable_entry_t *dflt,
 115                                 unsigned int vcc,
 116                                 void *priv_data)
 117 {
 118         p_dev->io.BasePort1 = cfg->io.win[0].base;
 119         return pcmcia_request_io(p_dev, &p_dev->io);
 120 }
 121
 122
 123 static int fdomain_config(struct pcmcia_device *link)
 124 {
 125     scsi_info_t *info = link->priv;
 126     int ret;
 127     char str[22];
 128     struct Scsi_Host *host;
 129
 130     dev_dbg(&link->dev, "fdomain_config\n");
 131
 132     ret = pcmcia_loop_config(link, fdomain_config_check, NULL);
 133     if (ret)
 134             goto failed;
 135
 136     ret = pcmcia_request_irq(link, &link->irq);
 137     if (ret)
 138             goto failed;
 139     ret = pcmcia_request_configuration(link, &link->conf);
 140     if (ret)
 141             goto failed;
 142
 143     /* A bad hack... */
 144     release_region(link->io.BasePort1, link->io.NumPorts1);
 145
 146     /* Set configuration options for the fdomain driver */
 147     sprintf(str, "%d,%d", link->io.BasePort1, link->irq.AssignedIRQ);
 148     fdomain_setup(str);
 149
 150     host = __fdomain_16x0_detect(&fdomain_driver_template);
 151     if (!host) {
 152         printk(KERN_INFO "fdomain_cs: no SCSI devices found\n");
 153         goto failed;
 154     }
 155
 156     if (scsi_add_host(host, NULL))
 157             goto failed;
 158     scsi_scan_host(host);
 159
 160     sprintf(info->node.dev_name, "scsi%d", host->host_no);
 161     link->dev_node = &info->node;
 162     info->host = host;
 163
 164     return 0;
 165
 166 failed:
 167     fdomain_release(link);
 168     return -ENODEV;
 169 } /* fdomain_config */
 170
 171 /*====================================================================*/
 172
 173 static void fdomain_release(struct pcmcia_device *link)
 174 {
 175         scsi_info_t *info = link->priv;
 176
 177         dev_dbg(&link->dev, "fdomain_release\n");
 178
 179         scsi_remove_host(info->host);
 180         pcmcia_disable_device(link);
 181         scsi_unregister(info->host);
 182 }
 183
 184 /*====================================================================*/
 185
 186 static int fdomain_resume(struct pcmcia_device *link)
 187 {
 188         fdomain_16x0_bus_reset(NULL);
 189
 190         return 0;
 191 }
 192
 193 static struct pcmcia_device_id fdomain_ids[] = {
 194         PCMCIA_DEVICE_PROD_ID12("IBM Corp.", "SCSI PCMCIA Card", 0xe3736c88, 0x859cad20),
 195         PCMCIA_DEVICE_PROD_ID1("SCSI PCMCIA Adapter Card", 0x8dacb57e),
 196         PCMCIA_DEVICE_PROD_ID12(" SIMPLE TECHNOLOGY Corporation", "SCSI PCMCIA Credit Card Controller", 0x182bdafe, 0xc80d106f),
 197         PCMCIA_DEVICE_NULL,
 198 };
 199 MODULE_DEVICE_TABLE(pcmcia, fdomain_ids);
 200
 201 static struct pcmcia_driver fdomain_cs_driver = {
 202         .owner          = THIS_MODULE,
 203         .drv            = {
 204                 .name   = "fdomain_cs",
 205         },
 206         .probe          = fdomain_probe,
 207         .remove         = fdomain_detach,
 208         .id_table       = fdomain_ids,
 209         .resume         = fdomain_resume,
 210 };
 211
 212 static int __init init_fdomain_cs(void)
 213 {
 214         return pcmcia_register_driver(&fdomain_cs_driver);
 215 }
 216
 217 static void __exit exit_fdomain_cs(void)
 218 {
 219         pcmcia_unregister_driver(&fdomain_cs_driver);
 220 }
 221
 222 module_init(init_fdomain_cs);
 223 module_exit(exit_fdomain_cs);