release/src-rt-6.x.4708/linux/linux-2.6.36/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/slab.h>
  41 #include <linux/string.h>
  42 #include <linux/ioport.h>
  43 #include <scsi/scsi.h>
  44 #include <linux/major.h>
  45 #include <linux/blkdev.h>
  46 #include <scsi/scsi_ioctl.h>
  47
  48 #include "scsi.h"
  49 #include <scsi/scsi_host.h>
  50 #include "aha152x.h"
  51
  52 #include <pcmcia/cs.h>
  53 #include <pcmcia/cistpl.h>
  54 #include <pcmcia/ds.h>
  55
  56
  57 /*====================================================================*/
  58
  59 /* Parameters that can be set with 'insmod' */
  60
  61 /* SCSI bus setup options */
  62 static int host_id = 7;
  63 static int reconnect = 1;
  64 static int parity = 1;
  65 static int synchronous = 1;
  66 static int reset_delay = 100;
  67 static int ext_trans = 0;
  68
  69 module_param(host_id, int, 0);
  70 module_param(reconnect, int, 0);
  71 module_param(parity, int, 0);
  72 module_param(synchronous, int, 0);
  73 module_param(reset_delay, int, 0);
  74 module_param(ext_trans, int, 0);
  75
  76 MODULE_LICENSE("Dual MPL/GPL");
  77
  78 /*====================================================================*/
  79
  80 typedef struct scsi_info_t {
  81         struct pcmcia_device    *p_dev;
  82     struct Scsi_Host    *host;
  83 } scsi_info_t;
  84
  85 static void aha152x_release_cs(struct pcmcia_device *link);
  86 static void aha152x_detach(struct pcmcia_device *p_dev);
  87 static int aha152x_config_cs(struct pcmcia_device *link);
  88
  89 static struct pcmcia_device *dev_list;
  90
  91 static int aha152x_probe(struct pcmcia_device *link)
  92 {
  93     scsi_info_t *info;
  94
  95     dev_dbg(&link->dev, "aha152x_attach()\n");
  96
  97     /* Create new SCSI device */
  98     info = kzalloc(sizeof(*info), GFP_KERNEL);
  99     if (!info) return -ENOMEM;
 100     info->p_dev = link;
 101     link->priv = info;
 102
 103     link->resource[0]->end = 0x20;
 104     link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
 105     link->conf.Attributes = CONF_ENABLE_IRQ;
 106     link->conf.IntType = INT_MEMORY_AND_IO;
 107     link->conf.Present = PRESENT_OPTION;
 108
 109     return aha152x_config_cs(link);
 110 } /* aha152x_attach */
 111
 112 /*====================================================================*/
 113
 114 static void aha152x_detach(struct pcmcia_device *link)
 115 {
 116     dev_dbg(&link->dev, "aha152x_detach\n");
 117
 118     aha152x_release_cs(link);
 119
 120     /* Unlink device structure, free bits */
 121     kfree(link->priv);
 122 } /* aha152x_detach */
 123
 124 /*====================================================================*/
 125
 126 static int aha152x_config_check(struct pcmcia_device *p_dev,
 127                                 cistpl_cftable_entry_t *cfg,
 128                                 cistpl_cftable_entry_t *dflt,
 129                                 unsigned int vcc,
 130                                 void *priv_data)
 131 {
 132         p_dev->io_lines = 10;
 133         /* For New Media T&J, look for a SCSI window */
 134         if (cfg->io.win[0].len >= 0x20)
 135                 p_dev->resource[0]->start = cfg->io.win[0].base;
 136         else if ((cfg->io.nwin > 1) &&
 137                  (cfg->io.win[1].len >= 0x20))
 138                 p_dev->resource[0]->start = cfg->io.win[1].base;
 139         if ((cfg->io.nwin > 0) &&
 140             (p_dev->resource[0]->start < 0xffff)) {
 141                 if (!pcmcia_request_io(p_dev))
 142                         return 0;
 143         }
 144         return -EINVAL;
 145 }
 146
 147 static int aha152x_config_cs(struct pcmcia_device *link)
 148 {
 149     scsi_info_t *info = link->priv;
 150     struct aha152x_setup s;
 151     int ret;
 152     struct Scsi_Host *host;
 153
 154     dev_dbg(&link->dev, "aha152x_config\n");
 155
 156     ret = pcmcia_loop_config(link, aha152x_config_check, NULL);
 157     if (ret)
 158             goto failed;
 159
 160     if (!link->irq)
 161             goto failed;
 162
 163     ret = pcmcia_request_configuration(link, &link->conf);
 164     if (ret)
 165             goto failed;
 166
 167     /* Set configuration options for the aha152x driver */
 168     memset(&s, 0, sizeof(s));
 169     s.conf        = "PCMCIA setup";
 170     s.io_port     = link->resource[0]->start;
 171     s.irq         = link->irq;
 172     s.scsiid      = host_id;
 173     s.reconnect   = reconnect;
 174     s.parity      = parity;
 175     s.synchronous = synchronous;
 176     s.delay       = reset_delay;
 177     if (ext_trans)
 178         s.ext_trans = ext_trans;
 179
 180     host = aha152x_probe_one(&s);
 181     if (host == NULL) {
 182         printk(KERN_INFO "aha152x_cs: no SCSI devices found\n");
 183         goto failed;
 184     }
 185
 186     info->host = host;
 187
 188     return 0;
 189
 190 failed:
 191     aha152x_release_cs(link);
 192     return -ENODEV;
 193 }
 194
 195 static void aha152x_release_cs(struct pcmcia_device *link)
 196 {
 197         scsi_info_t *info = link->priv;
 198
 199         aha152x_release(info->host);
 200         pcmcia_disable_device(link);
 201 }
 202
 203 static int aha152x_resume(struct pcmcia_device *link)
 204 {
 205         scsi_info_t *info = link->priv;
 206
 207         aha152x_host_reset_host(info->host);
 208
 209         return 0;
 210 }
 211
 212 static struct pcmcia_device_id aha152x_ids[] = {
 213         PCMCIA_DEVICE_PROD_ID123("New Media", "SCSI", "Bus Toaster", 0xcdf7e4cc, 0x35f26476, 0xa8851d6e),
 214         PCMCIA_DEVICE_PROD_ID123("NOTEWORTHY", "SCSI", "Bus Toaster", 0xad89c6e8, 0x35f26476, 0xa8851d6e),
 215         PCMCIA_DEVICE_PROD_ID12("Adaptec, Inc.", "APA-1460 SCSI Host Adapter", 0x24ba9738, 0x3a3c3d20),
 216         PCMCIA_DEVICE_PROD_ID12("New Media Corporation", "Multimedia Sound/SCSI", 0x085a850b, 0x80a6535c),
 217         PCMCIA_DEVICE_PROD_ID12("NOTEWORTHY", "NWCOMB02 SCSI/AUDIO COMBO CARD", 0xad89c6e8, 0x5f9a615b),
 218         PCMCIA_DEVICE_NULL,
 219 };
 220 MODULE_DEVICE_TABLE(pcmcia, aha152x_ids);
 221
 222 static struct pcmcia_driver aha152x_cs_driver = {
 223         .owner          = THIS_MODULE,
 224         .drv            = {
 225                 .name   = "aha152x_cs",
 226         },
 227         .probe          = aha152x_probe,
 228         .remove         = aha152x_detach,
 229         .id_table       = aha152x_ids,
 230         .resume         = aha152x_resume,
 231 };
 232
 233 static int __init init_aha152x_cs(void)
 234 {
 235         return pcmcia_register_driver(&aha152x_cs_driver);
 236 }
 237
 238 static void __exit exit_aha152x_cs(void)
 239 {
 240         pcmcia_unregister_driver(&aha152x_cs_driver);
 241         BUG_ON(dev_list != NULL);
 242 }
 243
 244 module_init(init_aha152x_cs);
 245 module_exit(exit_aha152x_cs);