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 void aha152x_detach(struct pcmcia_device *p_dev);
  99 static void aha152x_config_cs(dev_link_t *link);
 100
 101 static dev_link_t *dev_list;
 102
 103 static int aha152x_attach(struct pcmcia_device *p_dev)
 104 {
 105     scsi_info_t *info;
 106     dev_link_t *link;
 107
 108     DEBUG(0, "aha152x_attach()\n");
 109
 110     /* Create new SCSI device */
 111     info = kmalloc(sizeof(*info), GFP_KERNEL);
 112     if (!info) return -ENOMEM;
 113     memset(info, 0, sizeof(*info));
 114     link = &info->link; link->priv = info;
 115
 116     link->io.NumPorts1 = 0x20;
 117     link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
 118     link->io.IOAddrLines = 10;
 119     link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
 120     link->irq.IRQInfo1 = IRQ_LEVEL_ID;
 121     link->conf.Attributes = CONF_ENABLE_IRQ;
 122     link->conf.Vcc = 50;
 123     link->conf.IntType = INT_MEMORY_AND_IO;
 124     link->conf.Present = PRESENT_OPTION;
 125
 126     link->handle = p_dev;
 127     p_dev->instance = link;
 128
 129     link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
 130     aha152x_config_cs(link);
 131
 132     return 0;
 133 } /* aha152x_attach */
 134
 135 /*====================================================================*/
 136
 137 static void aha152x_detach(struct pcmcia_device *p_dev)
 138 {
 139     dev_link_t *link = dev_to_instance(p_dev);
 140     dev_link_t **linkp;
 141
 142     DEBUG(0, "aha152x_detach(0x%p)\n", link);
 143
 144     /* Locate device structure */
 145     for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
 146         if (*linkp == link) break;
 147     if (*linkp == NULL)
 148         return;
 149
 150     if (link->state & DEV_CONFIG)
 151         aha152x_release_cs(link);
 152
 153     /* Unlink device structure, free bits */
 154     *linkp = link->next;
 155     kfree(link->priv);
 156
 157 } /* aha152x_detach */
 158
 159 /*====================================================================*/
 160
 161 #define CS_CHECK(fn, ret) \
 162 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
 163
 164 static void aha152x_config_cs(dev_link_t *link)
 165 {
 166     client_handle_t handle = link->handle;
 167     scsi_info_t *info = link->priv;
 168     struct aha152x_setup s;
 169     tuple_t tuple;
 170     cisparse_t parse;
 171     int i, last_ret, last_fn;
 172     u_char tuple_data[64];
 173     struct Scsi_Host *host;
 174
 175     DEBUG(0, "aha152x_config(0x%p)\n", link);
 176
 177     tuple.DesiredTuple = CISTPL_CONFIG;
 178     tuple.TupleData = tuple_data;
 179     tuple.TupleDataMax = 64;
 180     tuple.TupleOffset = 0;
 181     CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
 182     CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
 183     CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
 184     link->conf.ConfigBase = parse.config.base;
 185
 186     /* Configure card */
 187     link->state |= DEV_CONFIG;
 188
 189     tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
 190     CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
 191     while (1) {
 192         if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
 193                 pcmcia_parse_tuple(handle, &tuple, &parse) != 0)
 194             goto next_entry;
 195         /* For New Media T&J, look for a SCSI window */
 196         if (parse.cftable_entry.io.win[0].len >= 0x20)
 197             link->io.BasePort1 = parse.cftable_entry.io.win[0].base;
 198         else if ((parse.cftable_entry.io.nwin > 1) &&
 199                  (parse.cftable_entry.io.win[1].len >= 0x20))
 200             link->io.BasePort1 = parse.cftable_entry.io.win[1].base;
 201         if ((parse.cftable_entry.io.nwin > 0) &&
 202             (link->io.BasePort1 < 0xffff)) {
 203             link->conf.ConfigIndex = parse.cftable_entry.index;
 204             i = pcmcia_request_io(handle, &link->io);
 205             if (i == CS_SUCCESS) break;
 206         }
 207     next_entry:
 208         CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple));
 209     }
 210
 211     CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq));
 212     CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
 213
 214     /* Set configuration options for the aha152x driver */
 215     memset(&s, 0, sizeof(s));
 216     s.conf        = "PCMCIA setup";
 217     s.io_port     = link->io.BasePort1;
 218     s.irq         = link->irq.AssignedIRQ;
 219     s.scsiid      = host_id;
 220     s.reconnect   = reconnect;
 221     s.parity      = parity;
 222     s.synchronous = synchronous;
 223     s.delay       = reset_delay;
 224     if (ext_trans)
 225         s.ext_trans = ext_trans;
 226
 227     host = aha152x_probe_one(&s);
 228     if (host == NULL) {
 229         printk(KERN_INFO "aha152x_cs: no SCSI devices found\n");
 230         goto cs_failed;
 231     }
 232
 233     sprintf(info->node.dev_name, "scsi%d", host->host_no);
 234     link->dev = &info->node;
 235     info->host = host;
 236
 237     link->state &= ~DEV_CONFIG_PENDING;
 238     return;
 239
 240 cs_failed:
 241     cs_error(link->handle, last_fn, last_ret);
 242     aha152x_release_cs(link);
 243     return;
 244 }
 245
 246 static void aha152x_release_cs(dev_link_t *link)
 247 {
 248         scsi_info_t *info = link->priv;
 249
 250         aha152x_release(info->host);
 251         link->dev = NULL;
 252
 253         pcmcia_release_configuration(link->handle);
 254         pcmcia_release_io(link->handle, &link->io);
 255         pcmcia_release_irq(link->handle, &link->irq);
 256
 257         link->state &= ~DEV_CONFIG;
 258 }
 259
 260 static int aha152x_suspend(struct pcmcia_device *dev)
 261 {
 262         dev_link_t *link = dev_to_instance(dev);
 263
 264         link->state |= DEV_SUSPEND;
 265         if (link->state & DEV_CONFIG)
 266                 pcmcia_release_configuration(link->handle);
 267
 268         return 0;
 269 }
 270
 271 static int aha152x_resume(struct pcmcia_device *dev)
 272 {
 273         dev_link_t *link = dev_to_instance(dev);
 274         scsi_info_t *info = link->priv;
 275
 276         link->state &= ~DEV_SUSPEND;
 277         if (link->state & DEV_CONFIG) {
 278                 Scsi_Cmnd tmp;
 279                 pcmcia_request_configuration(link->handle, &link->conf);
 280                 tmp.device->host = info->host;
 281                 aha152x_host_reset(&tmp);
 282         }
 283
 284         return 0;
 285 }
 286
 287 static struct pcmcia_device_id aha152x_ids[] = {
 288         PCMCIA_DEVICE_PROD_ID123("New Media", "SCSI", "Bus Toaster", 0xcdf7e4cc, 0x35f26476, 0xa8851d6e),
 289         PCMCIA_DEVICE_PROD_ID123("NOTEWORTHY", "SCSI", "Bus Toaster", 0xad89c6e8, 0x35f26476, 0xa8851d6e),
 290         PCMCIA_DEVICE_PROD_ID12("Adaptec, Inc.", "APA-1460 SCSI Host Adapter", 0x24ba9738, 0x3a3c3d20),
 291         PCMCIA_DEVICE_PROD_ID12("New Media Corporation", "Multimedia Sound/SCSI", 0x085a850b, 0x80a6535c),
 292         PCMCIA_DEVICE_PROD_ID12("NOTEWORTHY", "NWCOMB02 SCSI/AUDIO COMBO CARD", 0xad89c6e8, 0x5f9a615b),
 293         PCMCIA_DEVICE_NULL,
 294 };
 295 MODULE_DEVICE_TABLE(pcmcia, aha152x_ids);
 296
 297 static struct pcmcia_driver aha152x_cs_driver = {
 298         .owner          = THIS_MODULE,
 299         .drv            = {
 300                 .name   = "aha152x_cs",
 301         },
 302         .probe          = aha152x_attach,
 303         .remove         = aha152x_detach,
 304         .id_table       = aha152x_ids,
 305         .suspend        = aha152x_suspend,
 306         .resume         = aha152x_resume,
 307 };
 308
 309 static int __init init_aha152x_cs(void)
 310 {
 311         return pcmcia_register_driver(&aha152x_cs_driver);
 312 }
 313
 314 static void __exit exit_aha152x_cs(void)
 315 {
 316         pcmcia_unregister_driver(&aha152x_cs_driver);
 317         BUG_ON(dev_list != NULL);
 318 }
 319
 320 module_init(init_aha152x_cs);
 321 module_exit(exit_aha152x_cs);
 322