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(dev_link_t *link);
  83 static void fdomain_detach(struct pcmcia_device *p_dev);
  84 static void fdomain_config(dev_link_t *link);
  85
  86 static int fdomain_attach(struct pcmcia_device *p_dev)
  87 {
  88     scsi_info_t *info;
  89     dev_link_t *link = dev_to_instance(p_dev);
  90
  91     DEBUG(0, "fdomain_attach()\n");
  92
  93     /* Create new SCSI device */
  94     info = kmalloc(sizeof(*info), GFP_KERNEL);
  95     if (!info) return -ENOMEM;
  96     memset(info, 0, sizeof(*info));
  97     info->p_dev = p_dev;
  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     link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
 109     fdomain_config(link);
 110
 111     return 0;
 112 } /* fdomain_attach */
 113
 114 /*====================================================================*/
 115
 116 static void fdomain_detach(struct pcmcia_device *p_dev)
 117 {
 118         dev_link_t *link = dev_to_instance(p_dev);
 119
 120         DEBUG(0, "fdomain_detach(0x%p)\n", link);
 121
 122         if (link->state & DEV_CONFIG)
 123                 fdomain_release(link);
 124
 125         kfree(link->priv);
 126 } /* fdomain_detach */
 127
 128 /*====================================================================*/
 129
 130 #define CS_CHECK(fn, ret) \
 131 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
 132
 133 static void fdomain_config(dev_link_t *link)
 134 {
 135     client_handle_t handle = link->handle;
 136     scsi_info_t *info = link->priv;
 137     tuple_t tuple;
 138     cisparse_t parse;
 139     int i, last_ret, last_fn;
 140     u_char tuple_data[64];
 141     char str[16];
 142     struct Scsi_Host *host;
 143
 144     DEBUG(0, "fdomain_config(0x%p)\n", link);
 145
 146     tuple.DesiredTuple = CISTPL_CONFIG;
 147     tuple.TupleData = tuple_data;
 148     tuple.TupleDataMax = 64;
 149     tuple.TupleOffset = 0;
 150     CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
 151     CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
 152     CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
 153     link->conf.ConfigBase = parse.config.base;
 154
 155     /* Configure card */
 156     link->state |= DEV_CONFIG;
 157
 158     tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
 159     CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
 160     while (1) {
 161         if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
 162                 pcmcia_parse_tuple(handle, &tuple, &parse) != 0)
 163             goto next_entry;
 164         link->conf.ConfigIndex = parse.cftable_entry.index;
 165         link->io.BasePort1 = parse.cftable_entry.io.win[0].base;
 166         i = pcmcia_request_io(handle, &link->io);
 167         if (i == CS_SUCCESS) break;
 168     next_entry:
 169         CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple));
 170     }
 171
 172     CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq));
 173     CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
 174
 175     /* A bad hack... */
 176     release_region(link->io.BasePort1, link->io.NumPorts1);
 177
 178     /* Set configuration options for the fdomain driver */
 179     sprintf(str, "%d,%d", link->io.BasePort1, link->irq.AssignedIRQ);
 180     fdomain_setup(str);
 181
 182     host = __fdomain_16x0_detect(&fdomain_driver_template);
 183     if (!host) {
 184         printk(KERN_INFO "fdomain_cs: no SCSI devices found\n");
 185         goto cs_failed;
 186     }
 187
 188     scsi_add_host(host, NULL); /* XXX handle failure */
 189     scsi_scan_host(host);
 190
 191     sprintf(info->node.dev_name, "scsi%d", host->host_no);
 192     link->dev_node = &info->node;
 193     info->host = host;
 194
 195     link->state &= ~DEV_CONFIG_PENDING;
 196     return;
 197
 198 cs_failed:
 199     cs_error(link->handle, last_fn, last_ret);
 200     fdomain_release(link);
 201     return;
 202
 203 } /* fdomain_config */
 204
 205 /*====================================================================*/
 206
 207 static void fdomain_release(dev_link_t *link)
 208 {
 209         scsi_info_t *info = link->priv;
 210
 211         DEBUG(0, "fdomain_release(0x%p)\n", link);
 212
 213         scsi_remove_host(info->host);
 214         pcmcia_disable_device(link->handle);
 215         scsi_unregister(info->host);
 216 }
 217
 218 /*====================================================================*/
 219
 220 static int fdomain_resume(struct pcmcia_device *dev)
 221 {
 222         dev_link_t *link = dev_to_instance(dev);
 223
 224         if (link->state & DEV_CONFIG)
 225                 fdomain_16x0_bus_reset(NULL);
 226
 227         return 0;
 228 }
 229
 230 static struct pcmcia_device_id fdomain_ids[] = {
 231         PCMCIA_DEVICE_PROD_ID12("IBM Corp.", "SCSI PCMCIA Card", 0xe3736c88, 0x859cad20),
 232         PCMCIA_DEVICE_PROD_ID1("SCSI PCMCIA Adapter Card", 0x8dacb57e),
 233         PCMCIA_DEVICE_PROD_ID12(" SIMPLE TECHNOLOGY Corporation", "SCSI PCMCIA Credit Card Controller", 0x182bdafe, 0xc80d106f),
 234         PCMCIA_DEVICE_NULL,
 235 };
 236 MODULE_DEVICE_TABLE(pcmcia, fdomain_ids);
 237
 238 static struct pcmcia_driver fdomain_cs_driver = {
 239         .owner          = THIS_MODULE,
 240         .drv            = {
 241                 .name   = "fdomain_cs",
 242         },
 243         .probe          = fdomain_attach,
 244         .remove         = fdomain_detach,
 245         .id_table       = fdomain_ids,
 246         .resume         = fdomain_resume,
 247 };
 248
 249 static int __init init_fdomain_cs(void)
 250 {
 251         return pcmcia_register_driver(&fdomain_cs_driver);
 252 }
 253
 254 static void __exit exit_fdomain_cs(void)
 255 {
 256         pcmcia_unregister_driver(&fdomain_cs_driver);
 257 }
 258
 259 module_init(init_fdomain_cs);
 260 module_exit(exit_fdomain_cs);