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/sched.h>
  38 #include <linux/slab.h>
  39 #include <linux/string.h>
  40 #include <linux/ioport.h>
  41 #include <scsi/scsi.h>
  42 #include <linux/major.h>
  43 #include <linux/blkdev.h>
  44 #include <scsi/scsi_ioctl.h>
  45
  46 #include "scsi.h"
  47 #include <scsi/scsi_host.h>
  48 #include "fdomain.h"
  49
  50 #include <pcmcia/cs_types.h>
  51 #include <pcmcia/cs.h>
  52 #include <pcmcia/cistpl.h>
  53 #include <pcmcia/ds.h>
  54
  55 /*====================================================================*/
  56
  57 /* Module parameters */
  58
  59 MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
  60 MODULE_DESCRIPTION("Future Domain PCMCIA SCSI driver");
  61 MODULE_LICENSE("Dual MPL/GPL");
  62
  63 #ifdef PCMCIA_DEBUG
  64 static int pc_debug = PCMCIA_DEBUG;
  65 module_param(pc_debug, int, 0);
  66 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
  67 static char *version =
  68 "fdomain_cs.c 1.47 2001/10/13 00:08:52 (David Hinds)";
  69 #else
  70 #define DEBUG(n, args...)
  71 #endif
  72
  73 /*====================================================================*/
  74
  75 typedef struct scsi_info_t {
  76         struct pcmcia_device    *p_dev;
  77     dev_node_t          node;
  78     struct Scsi_Host    *host;
  79 } scsi_info_t;
  80
  81
  82 static void fdomain_release(struct pcmcia_device *link);
  83 static void fdomain_detach(struct pcmcia_device *p_dev);
  84 static int fdomain_config(struct pcmcia_device *link);
  85
  86 static int fdomain_probe(struct pcmcia_device *link)
  87 {
  88         scsi_info_t *info;
  89
  90         DEBUG(0, "fdomain_attach()\n");
  91
  92         /* Create new SCSI device */
  93         info = kzalloc(sizeof(*info), GFP_KERNEL);
  94         if (!info)
  95                 return -ENOMEM;
  96
  97         info->p_dev = link;
  98         link->priv = info;
  99         link->io.NumPorts1 = 0x10;
 100         link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
 101         link->io.IOAddrLines = 10;
 102         link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
 103         link->irq.IRQInfo1 = IRQ_LEVEL_ID;
 104         link->conf.Attributes = CONF_ENABLE_IRQ;
 105         link->conf.IntType = INT_MEMORY_AND_IO;
 106         link->conf.Present = PRESENT_OPTION;
 107
 108         return fdomain_config(link);
 109 } /* fdomain_attach */
 110
 111 /*====================================================================*/
 112
 113 static void fdomain_detach(struct pcmcia_device *link)
 114 {
 115         DEBUG(0, "fdomain_detach(0x%p)\n", link);
 116
 117         fdomain_release(link);
 118
 119         kfree(link->priv);
 120 } /* fdomain_detach */
 121
 122 /*====================================================================*/
 123
 124 #define CS_CHECK(fn, ret) \
 125 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
 126
 127 static int fdomain_config(struct pcmcia_device *link)
 128 {
 129     scsi_info_t *info = link->priv;
 130     tuple_t tuple;
 131     cisparse_t parse;
 132     int i, last_ret, last_fn;
 133     u_char tuple_data[64];
 134     char str[16];
 135     struct Scsi_Host *host;
 136
 137     DEBUG(0, "fdomain_config(0x%p)\n", link);
 138
 139     tuple.DesiredTuple = CISTPL_CONFIG;
 140     tuple.TupleData = tuple_data;
 141     tuple.TupleDataMax = 64;
 142     tuple.TupleOffset = 0;
 143     CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
 144     CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple));
 145     CS_CHECK(ParseTuple, pcmcia_parse_tuple(link, &tuple, &parse));
 146     link->conf.ConfigBase = parse.config.base;
 147
 148     tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
 149     CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
 150     while (1) {
 151         if (pcmcia_get_tuple_data(link, &tuple) != 0 ||
 152                 pcmcia_parse_tuple(link, &tuple, &parse) != 0)
 153             goto next_entry;
 154         link->conf.ConfigIndex = parse.cftable_entry.index;
 155         link->io.BasePort1 = parse.cftable_entry.io.win[0].base;
 156         i = pcmcia_request_io(link, &link->io);
 157         if (i == CS_SUCCESS) break;
 158     next_entry:
 159         CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(link, &tuple));
 160     }
 161
 162     CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
 163     CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
 164
 165     /* A bad hack... */
 166     release_region(link->io.BasePort1, link->io.NumPorts1);
 167
 168     /* Set configuration options for the fdomain driver */
 169     sprintf(str, "%d,%d", link->io.BasePort1, link->irq.AssignedIRQ);
 170     fdomain_setup(str);
 171
 172     host = __fdomain_16x0_detect(&fdomain_driver_template);
 173     if (!host) {
 174         printk(KERN_INFO "fdomain_cs: no SCSI devices found\n");
 175         goto cs_failed;
 176     }
 177
 178     if (scsi_add_host(host, NULL))
 179             goto cs_failed;
 180     scsi_scan_host(host);
 181
 182     sprintf(info->node.dev_name, "scsi%d", host->host_no);
 183     link->dev_node = &info->node;
 184     info->host = host;
 185
 186     return 0;
 187
 188 cs_failed:
 189     cs_error(link, last_fn, last_ret);
 190     fdomain_release(link);
 191     return -ENODEV;
 192 } /* fdomain_config */
 193
 194 /*====================================================================*/
 195
 196 static void fdomain_release(struct pcmcia_device *link)
 197 {
 198         scsi_info_t *info = link->priv;
 199
 200         DEBUG(0, "fdomain_release(0x%p)\n", link);
 201
 202         scsi_remove_host(info->host);
 203         pcmcia_disable_device(link);
 204         scsi_unregister(info->host);
 205 }
 206
 207 /*====================================================================*/
 208
 209 static int fdomain_resume(struct pcmcia_device *link)
 210 {
 211         fdomain_16x0_bus_reset(NULL);
 212
 213         return 0;
 214 }
 215
 216 static struct pcmcia_device_id fdomain_ids[] = {
 217         PCMCIA_DEVICE_PROD_ID12("IBM Corp.", "SCSI PCMCIA Card", 0xe3736c88, 0x859cad20),
 218         PCMCIA_DEVICE_PROD_ID1("SCSI PCMCIA Adapter Card", 0x8dacb57e),
 219         PCMCIA_DEVICE_PROD_ID12(" SIMPLE TECHNOLOGY Corporation", "SCSI PCMCIA Credit Card Controller", 0x182bdafe, 0xc80d106f),
 220         PCMCIA_DEVICE_NULL,
 221 };
 222 MODULE_DEVICE_TABLE(pcmcia, fdomain_ids);
 223
 224 static struct pcmcia_driver fdomain_cs_driver = {
 225         .owner          = THIS_MODULE,
 226         .drv            = {
 227                 .name   = "fdomain_cs",
 228         },
 229         .probe          = fdomain_probe,
 230         .remove         = fdomain_detach,
 231         .id_table       = fdomain_ids,
 232         .resume         = fdomain_resume,
 233 };
 234
 235 static int __init init_fdomain_cs(void)
 236 {
 237         return pcmcia_register_driver(&fdomain_cs_driver);
 238 }
 239
 240 static void __exit exit_fdomain_cs(void)
 241 {
 242         pcmcia_unregister_driver(&fdomain_cs_driver);
 243 }
 244
 245 module_init(init_fdomain_cs);
 246 module_exit(exit_fdomain_cs);