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->conf.Attributes = CONF_ENABLE_IRQ;
  92         link->conf.IntType = INT_MEMORY_AND_IO;
  93         link->conf.Present = PRESENT_OPTION;
  94
  95         return fdomain_config(link);
  96 } /* fdomain_attach */
  97
  98 /*====================================================================*/
  99
 100 static void fdomain_detach(struct pcmcia_device *link)
 101 {
 102         dev_dbg(&link->dev, "fdomain_detach\n");
 103
 104         fdomain_release(link);
 105
 106         kfree(link->priv);
 107 } /* fdomain_detach */
 108
 109 /*====================================================================*/
 110
 111 static int fdomain_config_check(struct pcmcia_device *p_dev,
 112                                 cistpl_cftable_entry_t *cfg,
 113                                 cistpl_cftable_entry_t *dflt,
 114                                 unsigned int vcc,
 115                                 void *priv_data)
 116 {
 117         p_dev->io.BasePort1 = cfg->io.win[0].base;
 118         return pcmcia_request_io(p_dev, &p_dev->io);
 119 }
 120
 121
 122 static int fdomain_config(struct pcmcia_device *link)
 123 {
 124     scsi_info_t *info = link->priv;
 125     int ret;
 126     char str[22];
 127     struct Scsi_Host *host;
 128
 129     dev_dbg(&link->dev, "fdomain_config\n");
 130
 131     ret = pcmcia_loop_config(link, fdomain_config_check, NULL);
 132     if (ret)
 133             goto failed;
 134
 135     if (!link->irq)
 136             goto failed;
 137     ret = pcmcia_request_configuration(link, &link->conf);
 138     if (ret)
 139             goto failed;
 140
 141     /* A bad hack... */
 142     release_region(link->io.BasePort1, link->io.NumPorts1);
 143
 144     /* Set configuration options for the fdomain driver */
 145     sprintf(str, "%d,%d", link->io.BasePort1, link->irq);
 146     fdomain_setup(str);
 147
 148     host = __fdomain_16x0_detect(&fdomain_driver_template);
 149     if (!host) {
 150         printk(KERN_INFO "fdomain_cs: no SCSI devices found\n");
 151         goto failed;
 152     }
 153
 154     if (scsi_add_host(host, NULL))
 155             goto failed;
 156     scsi_scan_host(host);
 157
 158     sprintf(info->node.dev_name, "scsi%d", host->host_no);
 159     link->dev_node = &info->node;
 160     info->host = host;
 161
 162     return 0;
 163
 164 failed:
 165     fdomain_release(link);
 166     return -ENODEV;
 167 } /* fdomain_config */
 168
 169 /*====================================================================*/
 170
 171 static void fdomain_release(struct pcmcia_device *link)
 172 {
 173         scsi_info_t *info = link->priv;
 174
 175         dev_dbg(&link->dev, "fdomain_release\n");
 176
 177         scsi_remove_host(info->host);
 178         pcmcia_disable_device(link);
 179         scsi_unregister(info->host);
 180 }
 181
 182 /*====================================================================*/
 183
 184 static int fdomain_resume(struct pcmcia_device *link)
 185 {
 186         fdomain_16x0_bus_reset(NULL);
 187
 188         return 0;
 189 }
 190
 191 static struct pcmcia_device_id fdomain_ids[] = {
 192         PCMCIA_DEVICE_PROD_ID12("IBM Corp.", "SCSI PCMCIA Card", 0xe3736c88, 0x859cad20),
 193         PCMCIA_DEVICE_PROD_ID1("SCSI PCMCIA Adapter Card", 0x8dacb57e),
 194         PCMCIA_DEVICE_PROD_ID12(" SIMPLE TECHNOLOGY Corporation", "SCSI PCMCIA Credit Card Controller", 0x182bdafe, 0xc80d106f),
 195         PCMCIA_DEVICE_NULL,
 196 };
 197 MODULE_DEVICE_TABLE(pcmcia, fdomain_ids);
 198
 199 static struct pcmcia_driver fdomain_cs_driver = {
 200         .owner          = THIS_MODULE,
 201         .drv            = {
 202                 .name   = "fdomain_cs",
 203         },
 204         .probe          = fdomain_probe,
 205         .remove         = fdomain_detach,
 206         .id_table       = fdomain_ids,
 207         .resume         = fdomain_resume,
 208 };
 209
 210 static int __init init_fdomain_cs(void)
 211 {
 212         return pcmcia_register_driver(&fdomain_cs_driver);
 213 }
 214
 215 static void __exit exit_fdomain_cs(void)
 216 {
 217         pcmcia_unregister_driver(&fdomain_cs_driver);
 218 }
 219
 220 module_init(init_fdomain_cs);
 221 module_exit(exit_fdomain_cs);