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.h>
  50 #include <pcmcia/cistpl.h>
  51 #include <pcmcia/ds.h>
  52
  53 /*====================================================================*/
  54
  55 /* Module parameters */
  56
  57 MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
  58 MODULE_DESCRIPTION("Future Domain PCMCIA SCSI driver");
  59 MODULE_LICENSE("Dual MPL/GPL");
  60
  61 /*====================================================================*/
  62
  63 typedef struct scsi_info_t {
  64         struct pcmcia_device    *p_dev;
  65     struct Scsi_Host    *host;
  66 } scsi_info_t;
  67
  68
  69 static void fdomain_release(struct pcmcia_device *link);
  70 static void fdomain_detach(struct pcmcia_device *p_dev);
  71 static int fdomain_config(struct pcmcia_device *link);
  72
  73 static int fdomain_probe(struct pcmcia_device *link)
  74 {
  75         scsi_info_t *info;
  76
  77         dev_dbg(&link->dev, "fdomain_attach()\n");
  78
  79         /* Create new SCSI device */
  80         info = kzalloc(sizeof(*info), GFP_KERNEL);
  81         if (!info)
  82                 return -ENOMEM;
  83
  84         info->p_dev = link;
  85         link->priv = info;
  86         link->resource[0]->end = 0x10;
  87         link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
  88         link->conf.Attributes = CONF_ENABLE_IRQ;
  89         link->config_regs = PRESENT_OPTION;
  90
  91         return fdomain_config(link);
  92 } /* fdomain_attach */
  93
  94 /*====================================================================*/
  95
  96 static void fdomain_detach(struct pcmcia_device *link)
  97 {
  98         dev_dbg(&link->dev, "fdomain_detach\n");
  99
 100         fdomain_release(link);
 101
 102         kfree(link->priv);
 103 } /* fdomain_detach */
 104
 105 /*====================================================================*/
 106
 107 static int fdomain_config_check(struct pcmcia_device *p_dev,
 108                                 cistpl_cftable_entry_t *cfg,
 109                                 cistpl_cftable_entry_t *dflt,
 110                                 unsigned int vcc,
 111                                 void *priv_data)
 112 {
 113         p_dev->io_lines = 10;
 114         p_dev->resource[0]->start = cfg->io.win[0].base;
 115         return pcmcia_request_io(p_dev);
 116 }
 117
 118
 119 static int fdomain_config(struct pcmcia_device *link)
 120 {
 121     scsi_info_t *info = link->priv;
 122     int ret;
 123     char str[22];
 124     struct Scsi_Host *host;
 125
 126     dev_dbg(&link->dev, "fdomain_config\n");
 127
 128     ret = pcmcia_loop_config(link, fdomain_config_check, NULL);
 129     if (ret)
 130             goto failed;
 131
 132     if (!link->irq)
 133             goto failed;
 134     ret = pcmcia_request_configuration(link, &link->conf);
 135     if (ret)
 136             goto failed;
 137
 138     /* A bad hack... */
 139     release_region(link->resource[0]->start, resource_size(link->resource[0]));
 140
 141     /* Set configuration options for the fdomain driver */
 142     sprintf(str, "%d,%d", (unsigned int) link->resource[0]->start, link->irq);
 143     fdomain_setup(str);
 144
 145     host = __fdomain_16x0_detect(&fdomain_driver_template);
 146     if (!host) {
 147         printk(KERN_INFO "fdomain_cs: no SCSI devices found\n");
 148         goto failed;
 149     }
 150
 151     if (scsi_add_host(host, NULL))
 152             goto failed;
 153     scsi_scan_host(host);
 154
 155     info->host = host;
 156
 157     return 0;
 158
 159 failed:
 160     fdomain_release(link);
 161     return -ENODEV;
 162 } /* fdomain_config */
 163
 164 /*====================================================================*/
 165
 166 static void fdomain_release(struct pcmcia_device *link)
 167 {
 168         scsi_info_t *info = link->priv;
 169
 170         dev_dbg(&link->dev, "fdomain_release\n");
 171
 172         scsi_remove_host(info->host);
 173         pcmcia_disable_device(link);
 174         scsi_unregister(info->host);
 175 }
 176
 177 /*====================================================================*/
 178
 179 static int fdomain_resume(struct pcmcia_device *link)
 180 {
 181         fdomain_16x0_bus_reset(NULL);
 182
 183         return 0;
 184 }
 185
 186 static struct pcmcia_device_id fdomain_ids[] = {
 187         PCMCIA_DEVICE_PROD_ID12("IBM Corp.", "SCSI PCMCIA Card", 0xe3736c88, 0x859cad20),
 188         PCMCIA_DEVICE_PROD_ID1("SCSI PCMCIA Adapter Card", 0x8dacb57e),
 189         PCMCIA_DEVICE_PROD_ID12(" SIMPLE TECHNOLOGY Corporation", "SCSI PCMCIA Credit Card Controller", 0x182bdafe, 0xc80d106f),
 190         PCMCIA_DEVICE_NULL,
 191 };
 192 MODULE_DEVICE_TABLE(pcmcia, fdomain_ids);
 193
 194 static struct pcmcia_driver fdomain_cs_driver = {
 195         .owner          = THIS_MODULE,
 196         .drv            = {
 197                 .name   = "fdomain_cs",
 198         },
 199         .probe          = fdomain_probe,
 200         .remove         = fdomain_detach,
 201         .id_table       = fdomain_ids,
 202         .resume         = fdomain_resume,
 203 };
 204
 205 static int __init init_fdomain_cs(void)
 206 {
 207         return pcmcia_register_driver(&fdomain_cs_driver);
 208 }
 209
 210 static void __exit exit_fdomain_cs(void)
 211 {
 212         pcmcia_unregister_driver(&fdomain_cs_driver);
 213 }
 214
 215 module_init(init_fdomain_cs);
 216 module_exit(exit_fdomain_cs);