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