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     struct Scsi_Host    *host;
  67 } scsi_info_t;
  68
  69
  70 static void fdomain_release(struct pcmcia_device *link);
  71 static void fdomain_detach(struct pcmcia_device *p_dev);
  72 static int fdomain_config(struct pcmcia_device *link);
  73
  74 static int fdomain_probe(struct pcmcia_device *link)
  75 {
  76         scsi_info_t *info;
  77
  78         dev_dbg(&link->dev, "fdomain_attach()\n");
  79
  80         /* Create new SCSI device */
  81         info = kzalloc(sizeof(*info), GFP_KERNEL);
  82         if (!info)
  83                 return -ENOMEM;
  84
  85         info->p_dev = link;
  86         link->priv = info;
  87         link->io.NumPorts1 = 0x10;
  88         link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
  89         link->io.IOAddrLines = 10;
  90         link->conf.Attributes = CONF_ENABLE_IRQ;
  91         link->conf.IntType = INT_MEMORY_AND_IO;
  92         link->conf.Present = PRESENT_OPTION;
  93
  94         return fdomain_config(link);
  95 } /* fdomain_attach */
  96
  97 /*====================================================================*/
  98
  99 static void fdomain_detach(struct pcmcia_device *link)
 100 {
 101         dev_dbg(&link->dev, "fdomain_detach\n");
 102
 103         fdomain_release(link);
 104
 105         kfree(link->priv);
 106 } /* fdomain_detach */
 107
 108 /*====================================================================*/
 109
 110 static int fdomain_config_check(struct pcmcia_device *p_dev,
 111                                 cistpl_cftable_entry_t *cfg,
 112                                 cistpl_cftable_entry_t *dflt,
 113                                 unsigned int vcc,
 114                                 void *priv_data)
 115 {
 116         p_dev->io.BasePort1 = cfg->io.win[0].base;
 117         return pcmcia_request_io(p_dev, &p_dev->io);
 118 }
 119
 120
 121 static int fdomain_config(struct pcmcia_device *link)
 122 {
 123     scsi_info_t *info = link->priv;
 124     int ret;
 125     char str[22];
 126     struct Scsi_Host *host;
 127
 128     dev_dbg(&link->dev, "fdomain_config\n");
 129
 130     ret = pcmcia_loop_config(link, fdomain_config_check, NULL);
 131     if (ret)
 132             goto failed;
 133
 134     if (!link->irq)
 135             goto failed;
 136     ret = pcmcia_request_configuration(link, &link->conf);
 137     if (ret)
 138             goto failed;
 139
 140     /* A bad hack... */
 141     release_region(link->io.BasePort1, link->io.NumPorts1);
 142
 143     /* Set configuration options for the fdomain driver */
 144     sprintf(str, "%d,%d", link->io.BasePort1, link->irq);
 145     fdomain_setup(str);
 146
 147     host = __fdomain_16x0_detect(&fdomain_driver_template);
 148     if (!host) {
 149         printk(KERN_INFO "fdomain_cs: no SCSI devices found\n");
 150         goto failed;
 151     }
 152
 153     if (scsi_add_host(host, NULL))
 154             goto failed;
 155     scsi_scan_host(host);
 156
 157     info->host = host;
 158
 159     return 0;
 160
 161 failed:
 162     fdomain_release(link);
 163     return -ENODEV;
 164 } /* fdomain_config */
 165
 166 /*====================================================================*/
 167
 168 static void fdomain_release(struct pcmcia_device *link)
 169 {
 170         scsi_info_t *info = link->priv;
 171
 172         dev_dbg(&link->dev, "fdomain_release\n");
 173
 174         scsi_remove_host(info->host);
 175         pcmcia_disable_device(link);
 176         scsi_unregister(info->host);
 177 }
 178
 179 /*====================================================================*/
 180
 181 static int fdomain_resume(struct pcmcia_device *link)
 182 {
 183         fdomain_16x0_bus_reset(NULL);
 184
 185         return 0;
 186 }
 187
 188 static struct pcmcia_device_id fdomain_ids[] = {
 189         PCMCIA_DEVICE_PROD_ID12("IBM Corp.", "SCSI PCMCIA Card", 0xe3736c88, 0x859cad20),
 190         PCMCIA_DEVICE_PROD_ID1("SCSI PCMCIA Adapter Card", 0x8dacb57e),
 191         PCMCIA_DEVICE_PROD_ID12(" SIMPLE TECHNOLOGY Corporation", "SCSI PCMCIA Credit Card Controller", 0x182bdafe, 0xc80d106f),
 192         PCMCIA_DEVICE_NULL,
 193 };
 194 MODULE_DEVICE_TABLE(pcmcia, fdomain_ids);
 195
 196 static struct pcmcia_driver fdomain_cs_driver = {
 197         .owner          = THIS_MODULE,
 198         .drv            = {
 199                 .name   = "fdomain_cs",
 200         },
 201         .probe          = fdomain_probe,
 202         .remove         = fdomain_detach,
 203         .id_table       = fdomain_ids,
 204         .resume         = fdomain_resume,
 205 };
 206
 207 static int __init init_fdomain_cs(void)
 208 {
 209         return pcmcia_register_driver(&fdomain_cs_driver);
 210 }
 211
 212 static void __exit exit_fdomain_cs(void)
 213 {
 214         pcmcia_unregister_driver(&fdomain_cs_driver);
 215 }
 216
 217 module_init(init_fdomain_cs);
 218 module_exit(exit_fdomain_cs);