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 #ifdef PCMCIA_DEBUG
  63 static int pc_debug = PCMCIA_DEBUG;
  64 module_param(pc_debug, int, 0);
  65 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
  66 static char *version =
  67 "fdomain_cs.c 1.47 2001/10/13 00:08:52 (David Hinds)";
  68 #else
  69 #define DEBUG(n, args...)
  70 #endif
  71
  72 /*====================================================================*/
  73
  74 typedef struct scsi_info_t {
  75         struct pcmcia_device    *p_dev;
  76     dev_node_t          node;
  77     struct Scsi_Host    *host;
  78 } scsi_info_t;
  79
  80
  81 static void fdomain_release(struct pcmcia_device *link);
  82 static void fdomain_detach(struct pcmcia_device *p_dev);
  83 static int fdomain_config(struct pcmcia_device *link);
  84
  85 static int fdomain_probe(struct pcmcia_device *link)
  86 {
  87         scsi_info_t *info;
  88
  89         DEBUG(0, "fdomain_attach()\n");
  90
  91         /* Create new SCSI device */
  92         info = kzalloc(sizeof(*info), GFP_KERNEL);
  93         if (!info)
  94                 return -ENOMEM;
  95
  96         info->p_dev = link;
  97         link->priv = info;
  98         link->io.NumPorts1 = 0x10;
  99         link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
 100         link->io.IOAddrLines = 10;
 101         link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
 102         link->irq.IRQInfo1 = IRQ_LEVEL_ID;
 103         link->conf.Attributes = CONF_ENABLE_IRQ;
 104         link->conf.IntType = INT_MEMORY_AND_IO;
 105         link->conf.Present = PRESENT_OPTION;
 106
 107         return fdomain_config(link);
 108 } /* fdomain_attach */
 109
 110 /*====================================================================*/
 111
 112 static void fdomain_detach(struct pcmcia_device *link)
 113 {
 114         DEBUG(0, "fdomain_detach(0x%p)\n", link);
 115
 116         fdomain_release(link);
 117
 118         kfree(link->priv);
 119 } /* fdomain_detach */
 120
 121 /*====================================================================*/
 122
 123 #define CS_CHECK(fn, ret) \
 124 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
 125
 126 static int fdomain_config(struct pcmcia_device *link)
 127 {
 128     scsi_info_t *info = link->priv;
 129     tuple_t tuple;
 130     cisparse_t parse;
 131     int i, last_ret, last_fn;
 132     u_char tuple_data[64];
 133     char str[16];
 134     struct Scsi_Host *host;
 135
 136     DEBUG(0, "fdomain_config(0x%p)\n", link);
 137
 138     tuple.TupleData = tuple_data;
 139     tuple.TupleDataMax = 64;
 140     tuple.TupleOffset = 0;
 141
 142     tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
 143     CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
 144     while (1) {
 145         if (pcmcia_get_tuple_data(link, &tuple) != 0 ||
 146                 pcmcia_parse_tuple(link, &tuple, &parse) != 0)
 147             goto next_entry;
 148         link->conf.ConfigIndex = parse.cftable_entry.index;
 149         link->io.BasePort1 = parse.cftable_entry.io.win[0].base;
 150         i = pcmcia_request_io(link, &link->io);
 151         if (i == CS_SUCCESS) break;
 152     next_entry:
 153         CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(link, &tuple));
 154     }
 155
 156     CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
 157     CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
 158
 159     /* A bad hack... */
 160     release_region(link->io.BasePort1, link->io.NumPorts1);
 161
 162     /* Set configuration options for the fdomain driver */
 163     sprintf(str, "%d,%d", link->io.BasePort1, link->irq.AssignedIRQ);
 164     fdomain_setup(str);
 165
 166     host = __fdomain_16x0_detect(&fdomain_driver_template);
 167     if (!host) {
 168         printk(KERN_INFO "fdomain_cs: no SCSI devices found\n");
 169         goto cs_failed;
 170     }
 171
 172     if (scsi_add_host(host, NULL))
 173             goto cs_failed;
 174     scsi_scan_host(host);
 175
 176     sprintf(info->node.dev_name, "scsi%d", host->host_no);
 177     link->dev_node = &info->node;
 178     info->host = host;
 179
 180     return 0;
 181
 182 cs_failed:
 183     cs_error(link, last_fn, last_ret);
 184     fdomain_release(link);
 185     return -ENODEV;
 186 } /* fdomain_config */
 187
 188 /*====================================================================*/
 189
 190 static void fdomain_release(struct pcmcia_device *link)
 191 {
 192         scsi_info_t *info = link->priv;
 193
 194         DEBUG(0, "fdomain_release(0x%p)\n", link);
 195
 196         scsi_remove_host(info->host);
 197         pcmcia_disable_device(link);
 198         scsi_unregister(info->host);
 199 }
 200
 201 /*====================================================================*/
 202
 203 static int fdomain_resume(struct pcmcia_device *link)
 204 {
 205         fdomain_16x0_bus_reset(NULL);
 206
 207         return 0;
 208 }
 209
 210 static struct pcmcia_device_id fdomain_ids[] = {
 211         PCMCIA_DEVICE_PROD_ID12("IBM Corp.", "SCSI PCMCIA Card", 0xe3736c88, 0x859cad20),
 212         PCMCIA_DEVICE_PROD_ID1("SCSI PCMCIA Adapter Card", 0x8dacb57e),
 213         PCMCIA_DEVICE_PROD_ID12(" SIMPLE TECHNOLOGY Corporation", "SCSI PCMCIA Credit Card Controller", 0x182bdafe, 0xc80d106f),
 214         PCMCIA_DEVICE_NULL,
 215 };
 216 MODULE_DEVICE_TABLE(pcmcia, fdomain_ids);
 217
 218 static struct pcmcia_driver fdomain_cs_driver = {
 219         .owner          = THIS_MODULE,
 220         .drv            = {
 221                 .name   = "fdomain_cs",
 222         },
 223         .probe          = fdomain_probe,
 224         .remove         = fdomain_detach,
 225         .id_table       = fdomain_ids,
 226         .resume         = fdomain_resume,
 227 };
 228
 229 static int __init init_fdomain_cs(void)
 230 {
 231         return pcmcia_register_driver(&fdomain_cs_driver);
 232 }
 233
 234 static void __exit exit_fdomain_cs(void)
 235 {
 236         pcmcia_unregister_driver(&fdomain_cs_driver);
 237 }
 238
 239 module_init(init_fdomain_cs);
 240 module_exit(exit_fdomain_cs);