drivers/scsi/pcmcia/aha152x_stub.c

   1 /*======================================================================
   2
   3     A driver for Adaptec AHA152X-compatible PCMCIA SCSI cards.
   4
   5     This driver supports the Adaptec AHA-1460, the New Media Bus
   6     Toaster, and the New Media Toast & Jam.
   7
   8     aha152x_cs.c 1.54 2000/06/12 21:27:25
   9
  10     The contents of this file are subject to the Mozilla Public
  11     License Version 1.1 (the "License"); you may not use this file
  12     except in compliance with the License. You may obtain a copy of
  13     the License at http://www.mozilla.org/MPL/
  14
  15     Software distributed under the License is distributed on an "AS
  16     IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
  17     implied. See the License for the specific language governing
  18     rights and limitations under the License.
  19
  20     The initial developer of the original code is David A. Hinds
  21     <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
  22     are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
  23
  24     Alternatively, the contents of this file may be used under the
  25     terms of the GNU General Public License version 2 (the "GPL"), in which
  26     case the provisions of the GPL are applicable instead of the
  27     above.  If you wish to allow the use of your version of this file
  28     only under the terms of the GPL and not to allow others to use
  29     your version of this file under the MPL, indicate your decision
  30     by deleting the provisions above and replace them with the notice
  31     and other provisions required by the GPL.  If you do not delete
  32     the provisions above, a recipient may use your version of this
  33     file under either the MPL or the GPL.
  34
  35 ======================================================================*/
  36
  37 #include <linux/module.h>
  38 #include <linux/init.h>
  39 #include <linux/kernel.h>
  40 #include <linux/sched.h>
  41 #include <linux/slab.h>
  42 #include <linux/string.h>
  43 #include <linux/ioport.h>
  44 #include <scsi/scsi.h>
  45 #include <linux/major.h>
  46 #include <linux/blkdev.h>
  47 #include <scsi/scsi_ioctl.h>
  48
  49 #include "scsi.h"
  50 #include <scsi/scsi_host.h>
  51 #include "aha152x.h"
  52
  53 #include <pcmcia/cs_types.h>
  54 #include <pcmcia/cs.h>
  55 #include <pcmcia/cistpl.h>
  56 #include <pcmcia/ds.h>
  57
  58 #ifdef PCMCIA_DEBUG
  59 static int pc_debug = PCMCIA_DEBUG;
  60 module_param(pc_debug, int, 0644);
  61 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
  62 static char *version =
  63 "aha152x_cs.c 1.54 2000/06/12 21:27:25 (David Hinds)";
  64 #else
  65 #define DEBUG(n, args...)
  66 #endif
  67
  68 /*====================================================================*/
  69
  70 /* Parameters that can be set with 'insmod' */
  71
  72 /* SCSI bus setup options */
  73 static int host_id = 7;
  74 static int reconnect = 1;
  75 static int parity = 1;
  76 static int synchronous = 1;
  77 static int reset_delay = 100;
  78 static int ext_trans = 0;
  79
  80 module_param(host_id, int, 0);
  81 module_param(reconnect, int, 0);
  82 module_param(parity, int, 0);
  83 module_param(synchronous, int, 0);
  84 module_param(reset_delay, int, 0);
  85 module_param(ext_trans, int, 0);
  86
  87 MODULE_LICENSE("Dual MPL/GPL");
  88
  89 /*====================================================================*/
  90
  91 typedef struct scsi_info_t {
  92     dev_link_t          link;
  93     dev_node_t          node;
  94     struct Scsi_Host    *host;
  95 } scsi_info_t;
  96
  97 static void aha152x_release_cs(dev_link_t *link);
  98 static int aha152x_event(event_t event, int priority,
  99                          event_callback_args_t *args);
 100
 101 static dev_link_t *aha152x_attach(void);
 102 static void aha152x_detach(dev_link_t *);
 103
 104 static dev_link_t *dev_list;
 105 static dev_info_t dev_info = "aha152x_cs";
 106
 107 static dev_link_t *aha152x_attach(void)
 108 {
 109     scsi_info_t *info;
 110     client_reg_t client_reg;
 111     dev_link_t *link;
 112     int ret;
 113
 114     DEBUG(0, "aha152x_attach()\n");
 115
 116     /* Create new SCSI device */
 117     info = kmalloc(sizeof(*info), GFP_KERNEL);
 118     if (!info) return NULL;
 119     memset(info, 0, sizeof(*info));
 120     link = &info->link; link->priv = info;
 121
 122     link->io.NumPorts1 = 0x20;
 123     link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
 124     link->io.IOAddrLines = 10;
 125     link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
 126     link->irq.IRQInfo1 = IRQ_LEVEL_ID;
 127     link->conf.Attributes = CONF_ENABLE_IRQ;
 128     link->conf.Vcc = 50;
 129     link->conf.IntType = INT_MEMORY_AND_IO;
 130     link->conf.Present = PRESENT_OPTION;
 131
 132     /* Register with Card Services */
 133     link->next = dev_list;
 134     dev_list = link;
 135     client_reg.dev_info = &dev_info;
 136     client_reg.Version = 0x0210;
 137     client_reg.event_callback_args.client_data = link;
 138     ret = pcmcia_register_client(&link->handle, &client_reg);
 139     if (ret != 0) {
 140         cs_error(link->handle, RegisterClient, ret);
 141         aha152x_detach(link);
 142         return NULL;
 143     }
 144
 145     return link;
 146 } /* aha152x_attach */
 147
 148 /*====================================================================*/
 149
 150 static void aha152x_detach(dev_link_t *link)
 151 {
 152     dev_link_t **linkp;
 153
 154     DEBUG(0, "aha152x_detach(0x%p)\n", link);
 155
 156     /* Locate device structure */
 157     for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
 158         if (*linkp == link) break;
 159     if (*linkp == NULL)
 160         return;
 161
 162     if (link->state & DEV_CONFIG)
 163         aha152x_release_cs(link);
 164
 165     if (link->handle)
 166         pcmcia_deregister_client(link->handle);
 167
 168     /* Unlink device structure, free bits */
 169     *linkp = link->next;
 170     kfree(link->priv);
 171
 172 } /* aha152x_detach */
 173
 174 /*====================================================================*/
 175
 176 #define CS_CHECK(fn, ret) \
 177 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
 178
 179 static void aha152x_config_cs(dev_link_t *link)
 180 {
 181     client_handle_t handle = link->handle;
 182     scsi_info_t *info = link->priv;
 183     struct aha152x_setup s;
 184     tuple_t tuple;
 185     cisparse_t parse;
 186     int i, last_ret, last_fn;
 187     u_char tuple_data[64];
 188     struct Scsi_Host *host;
 189
 190     DEBUG(0, "aha152x_config(0x%p)\n", link);
 191
 192     tuple.DesiredTuple = CISTPL_CONFIG;
 193     tuple.TupleData = tuple_data;
 194     tuple.TupleDataMax = 64;
 195     tuple.TupleOffset = 0;
 196     CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
 197     CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
 198     CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
 199     link->conf.ConfigBase = parse.config.base;
 200
 201     /* Configure card */
 202     link->state |= DEV_CONFIG;
 203
 204     tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
 205     CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
 206     while (1) {
 207         if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
 208                 pcmcia_parse_tuple(handle, &tuple, &parse) != 0)
 209             goto next_entry;
 210         /* For New Media T&J, look for a SCSI window */
 211         if (parse.cftable_entry.io.win[0].len >= 0x20)
 212             link->io.BasePort1 = parse.cftable_entry.io.win[0].base;
 213         else if ((parse.cftable_entry.io.nwin > 1) &&
 214                  (parse.cftable_entry.io.win[1].len >= 0x20))
 215             link->io.BasePort1 = parse.cftable_entry.io.win[1].base;
 216         if ((parse.cftable_entry.io.nwin > 0) &&
 217             (link->io.BasePort1 < 0xffff)) {
 218             link->conf.ConfigIndex = parse.cftable_entry.index;
 219             i = pcmcia_request_io(handle, &link->io);
 220             if (i == CS_SUCCESS) break;
 221         }
 222     next_entry:
 223         CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple));
 224     }
 225
 226     CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq));
 227     CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
 228
 229     /* Set configuration options for the aha152x driver */
 230     memset(&s, 0, sizeof(s));
 231     s.conf        = "PCMCIA setup";
 232     s.io_port     = link->io.BasePort1;
 233     s.irq         = link->irq.AssignedIRQ;
 234     s.scsiid      = host_id;
 235     s.reconnect   = reconnect;
 236     s.parity      = parity;
 237     s.synchronous = synchronous;
 238     s.delay       = reset_delay;
 239     if (ext_trans)
 240         s.ext_trans = ext_trans;
 241
 242     host = aha152x_probe_one(&s);
 243     if (host == NULL) {
 244         printk(KERN_INFO "aha152x_cs: no SCSI devices found\n");
 245         goto cs_failed;
 246     }
 247
 248     sprintf(info->node.dev_name, "scsi%d", host->host_no);
 249     link->dev = &info->node;
 250     info->host = host;
 251
 252     link->state &= ~DEV_CONFIG_PENDING;
 253     return;
 254
 255 cs_failed:
 256     cs_error(link->handle, last_fn, last_ret);
 257     aha152x_release_cs(link);
 258     return;
 259 }
 260
 261 static void aha152x_release_cs(dev_link_t *link)
 262 {
 263         scsi_info_t *info = link->priv;
 264
 265         aha152x_release(info->host);
 266         link->dev = NULL;
 267
 268         pcmcia_release_configuration(link->handle);
 269         pcmcia_release_io(link->handle, &link->io);
 270         pcmcia_release_irq(link->handle, &link->irq);
 271
 272         link->state &= ~DEV_CONFIG;
 273 }
 274
 275 static int aha152x_event(event_t event, int priority,
 276                          event_callback_args_t *args)
 277 {
 278     dev_link_t *link = args->client_data;
 279     scsi_info_t *info = link->priv;
 280
 281     DEBUG(0, "aha152x_event(0x%06x)\n", event);
 282
 283     switch (event) {
 284     case CS_EVENT_CARD_REMOVAL:
 285         link->state &= ~DEV_PRESENT;
 286         if (link->state & DEV_CONFIG)
 287             aha152x_release_cs(link);
 288         break;
 289     case CS_EVENT_CARD_INSERTION:
 290         link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
 291         aha152x_config_cs(link);
 292         break;
 293     case CS_EVENT_PM_SUSPEND:
 294         link->state |= DEV_SUSPEND;
 295         /* Fall through... */
 296     case CS_EVENT_RESET_PHYSICAL:
 297         if (link->state & DEV_CONFIG)
 298             pcmcia_release_configuration(link->handle);
 299         break;
 300     case CS_EVENT_PM_RESUME:
 301         link->state &= ~DEV_SUSPEND;
 302         /* Fall through... */
 303     case CS_EVENT_CARD_RESET:
 304         if (link->state & DEV_CONFIG) {
 305             Scsi_Cmnd tmp;
 306             pcmcia_request_configuration(link->handle, &link->conf);
 307             tmp.device->host = info->host;
 308             aha152x_host_reset(&tmp);
 309         }
 310         break;
 311     }
 312     return 0;
 313 }
 314
 315 static struct pcmcia_device_id aha152x_ids[] = {
 316         PCMCIA_DEVICE_PROD_ID123("New Media", "SCSI", "Bus Toaster", 0xcdf7e4cc, 0x35f26476, 0xa8851d6e),
 317         PCMCIA_DEVICE_PROD_ID123("NOTEWORTHY", "SCSI", "Bus Toaster", 0xad89c6e8, 0x35f26476, 0xa8851d6e),
 318         PCMCIA_DEVICE_PROD_ID12("Adaptec, Inc.", "APA-1460 SCSI Host Adapter", 0x24ba9738, 0x3a3c3d20),
 319         PCMCIA_DEVICE_PROD_ID12("New Media Corporation", "Multimedia Sound/SCSI", 0x085a850b, 0x80a6535c),
 320         PCMCIA_DEVICE_PROD_ID12("NOTEWORTHY", "NWCOMB02 SCSI/AUDIO COMBO CARD", 0xad89c6e8, 0x5f9a615b),
 321         PCMCIA_DEVICE_NULL,
 322 };
 323 MODULE_DEVICE_TABLE(pcmcia, aha152x_ids);
 324
 325 static struct pcmcia_driver aha152x_cs_driver = {
 326         .owner          = THIS_MODULE,
 327         .drv            = {
 328                 .name   = "aha152x_cs",
 329         },
 330         .attach         = aha152x_attach,
 331         .event          = aha152x_event,
 332         .detach         = aha152x_detach,
 333         .id_table       = aha152x_ids,
 334 };
 335
 336 static int __init init_aha152x_cs(void)
 337 {
 338         return pcmcia_register_driver(&aha152x_cs_driver);
 339 }
 340
 341 static void __exit exit_aha152x_cs(void)
 342 {
 343         pcmcia_unregister_driver(&aha152x_cs_driver);
 344         BUG_ON(dev_list != NULL);
 345 }
 346
 347 module_init(init_aha152x_cs);
 348 module_exit(exit_aha152x_cs);
 349