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->resource[0]->end = 0x20;
 103     link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
 104     link->config_flags |= CONF_ENABLE_IRQ;
 105     link->config_regs = PRESENT_OPTION;
 106
 107     return aha152x_config_cs(link);
 108 } /* aha152x_attach */
 109
 110 /*====================================================================*/
 111
 112 static void aha152x_detach(struct pcmcia_device *link)
 113 {
 114     dev_dbg(&link->dev, "aha152x_detach\n");
 115
 116     aha152x_release_cs(link);
 117
 118     /* Unlink device structure, free bits */
 119     kfree(link->priv);
 120 } /* aha152x_detach */
 121
 122 /*====================================================================*/
 123
 124 static int aha152x_config_check(struct pcmcia_device *p_dev,
 125                                 cistpl_cftable_entry_t *cfg,
 126                                 cistpl_cftable_entry_t *dflt,
 127                                 unsigned int vcc,
 128                                 void *priv_data)
 129 {
 130         p_dev->io_lines = 10;
 131         /* For New Media T&J, look for a SCSI window */
 132         if (cfg->io.win[0].len >= 0x20)
 133                 p_dev->resource[0]->start = cfg->io.win[0].base;
 134         else if ((cfg->io.nwin > 1) &&
 135                  (cfg->io.win[1].len >= 0x20))
 136                 p_dev->resource[0]->start = cfg->io.win[1].base;
 137         if ((cfg->io.nwin > 0) &&
 138             (p_dev->resource[0]->start < 0xffff)) {
 139                 if (!pcmcia_request_io(p_dev))
 140                         return 0;
 141         }
 142         return -EINVAL;
 143 }
 144
 145 static int aha152x_config_cs(struct pcmcia_device *link)
 146 {
 147     scsi_info_t *info = link->priv;
 148     struct aha152x_setup s;
 149     int ret;
 150     struct Scsi_Host *host;
 151
 152     dev_dbg(&link->dev, "aha152x_config\n");
 153
 154     ret = pcmcia_loop_config(link, aha152x_config_check, NULL);
 155     if (ret)
 156             goto failed;
 157
 158     if (!link->irq)
 159             goto failed;
 160
 161     ret = pcmcia_enable_device(link);
 162     if (ret)
 163             goto failed;
 164
 165     /* Set configuration options for the aha152x driver */
 166     memset(&s, 0, sizeof(s));
 167     s.conf        = "PCMCIA setup";
 168     s.io_port     = link->resource[0]->start;
 169     s.irq         = link->irq;
 170     s.scsiid      = host_id;
 171     s.reconnect   = reconnect;
 172     s.parity      = parity;
 173     s.synchronous = synchronous;
 174     s.delay       = reset_delay;
 175     if (ext_trans)
 176         s.ext_trans = ext_trans;
 177
 178     host = aha152x_probe_one(&s);
 179     if (host == NULL) {
 180         printk(KERN_INFO "aha152x_cs: no SCSI devices found\n");
 181         goto failed;
 182     }
 183
 184     info->host = host;
 185
 186     return 0;
 187
 188 failed:
 189     aha152x_release_cs(link);
 190     return -ENODEV;
 191 }
 192
 193 static void aha152x_release_cs(struct pcmcia_device *link)
 194 {
 195         scsi_info_t *info = link->priv;
 196
 197         aha152x_release(info->host);
 198         pcmcia_disable_device(link);
 199 }
 200
 201 static int aha152x_resume(struct pcmcia_device *link)
 202 {
 203         scsi_info_t *info = link->priv;
 204
 205         aha152x_host_reset_host(info->host);
 206
 207         return 0;
 208 }
 209
 210 static struct pcmcia_device_id aha152x_ids[] = {
 211         PCMCIA_DEVICE_PROD_ID123("New Media", "SCSI", "Bus Toaster", 0xcdf7e4cc, 0x35f26476, 0xa8851d6e),
 212         PCMCIA_DEVICE_PROD_ID123("NOTEWORTHY", "SCSI", "Bus Toaster", 0xad89c6e8, 0x35f26476, 0xa8851d6e),
 213         PCMCIA_DEVICE_PROD_ID12("Adaptec, Inc.", "APA-1460 SCSI Host Adapter", 0x24ba9738, 0x3a3c3d20),
 214         PCMCIA_DEVICE_PROD_ID12("New Media Corporation", "Multimedia Sound/SCSI", 0x085a850b, 0x80a6535c),
 215         PCMCIA_DEVICE_PROD_ID12("NOTEWORTHY", "NWCOMB02 SCSI/AUDIO COMBO CARD", 0xad89c6e8, 0x5f9a615b),
 216         PCMCIA_DEVICE_NULL,
 217 };
 218 MODULE_DEVICE_TABLE(pcmcia, aha152x_ids);
 219
 220 static struct pcmcia_driver aha152x_cs_driver = {
 221         .owner          = THIS_MODULE,
 222         .drv            = {
 223                 .name   = "aha152x_cs",
 224         },
 225         .probe          = aha152x_probe,
 226         .remove         = aha152x_detach,
 227         .id_table       = aha152x_ids,
 228         .resume         = aha152x_resume,
 229 };
 230
 231 static int __init init_aha152x_cs(void)
 232 {
 233         return pcmcia_register_driver(&aha152x_cs_driver);
 234 }
 235
 236 static void __exit exit_aha152x_cs(void)
 237 {
 238         pcmcia_unregister_driver(&aha152x_cs_driver);
 239         BUG_ON(dev_list != NULL);
 240 }
 241
 242 module_init(init_aha152x_cs);
 243 module_exit(exit_aha152x_cs);