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 int aha152x_probe(struct pcmcia_device *link)
  89 {
  90     scsi_info_t *info;
  91
  92     dev_dbg(&link->dev, "aha152x_attach()\n");
  93
  94     /* Create new SCSI device */
  95     info = kzalloc(sizeof(*info), GFP_KERNEL);
  96     if (!info) return -ENOMEM;
  97     info->p_dev = link;
  98     link->priv = info;
  99
 100     link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
 101     link->config_regs = PRESENT_OPTION;
 102
 103     return aha152x_config_cs(link);
 104 } /* aha152x_attach */
 105
 106 /*====================================================================*/
 107
 108 static void aha152x_detach(struct pcmcia_device *link)
 109 {
 110     dev_dbg(&link->dev, "aha152x_detach\n");
 111
 112     aha152x_release_cs(link);
 113
 114     /* Unlink device structure, free bits */
 115     kfree(link->priv);
 116 } /* aha152x_detach */
 117
 118 /*====================================================================*/
 119
 120 static int aha152x_config_check(struct pcmcia_device *p_dev, void *priv_data)
 121 {
 122         p_dev->io_lines = 10;
 123
 124         /* For New Media T&J, look for a SCSI window */
 125         if ((p_dev->resource[0]->end < 0x20) &&
 126                 (p_dev->resource[1]->end >= 0x20))
 127                 p_dev->resource[0]->start = p_dev->resource[1]->start;
 128
 129         if (p_dev->resource[0]->start >= 0xffff)
 130                 return -EINVAL;
 131
 132         p_dev->resource[1]->start = p_dev->resource[1]->end = 0;
 133         p_dev->resource[0]->end = 0x20;
 134         p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
 135         p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
 136
 137         return pcmcia_request_io(p_dev);
 138 }
 139
 140 static int aha152x_config_cs(struct pcmcia_device *link)
 141 {
 142     scsi_info_t *info = link->priv;
 143     struct aha152x_setup s;
 144     int ret;
 145     struct Scsi_Host *host;
 146
 147     dev_dbg(&link->dev, "aha152x_config\n");
 148
 149     ret = pcmcia_loop_config(link, aha152x_config_check, NULL);
 150     if (ret)
 151             goto failed;
 152
 153     if (!link->irq)
 154             goto failed;
 155
 156     ret = pcmcia_enable_device(link);
 157     if (ret)
 158             goto failed;
 159
 160     /* Set configuration options for the aha152x driver */
 161     memset(&s, 0, sizeof(s));
 162     s.conf        = "PCMCIA setup";
 163     s.io_port     = link->resource[0]->start;
 164     s.irq         = link->irq;
 165     s.scsiid      = host_id;
 166     s.reconnect   = reconnect;
 167     s.parity      = parity;
 168     s.synchronous = synchronous;
 169     s.delay       = reset_delay;
 170     if (ext_trans)
 171         s.ext_trans = ext_trans;
 172
 173     host = aha152x_probe_one(&s);
 174     if (host == NULL) {
 175         printk(KERN_INFO "aha152x_cs: no SCSI devices found\n");
 176         goto failed;
 177     }
 178
 179     info->host = host;
 180
 181     return 0;
 182
 183 failed:
 184     aha152x_release_cs(link);
 185     return -ENODEV;
 186 }
 187
 188 static void aha152x_release_cs(struct pcmcia_device *link)
 189 {
 190         scsi_info_t *info = link->priv;
 191
 192         aha152x_release(info->host);
 193         pcmcia_disable_device(link);
 194 }
 195
 196 static int aha152x_resume(struct pcmcia_device *link)
 197 {
 198         scsi_info_t *info = link->priv;
 199
 200         aha152x_host_reset_host(info->host);
 201
 202         return 0;
 203 }
 204
 205 static const struct pcmcia_device_id aha152x_ids[] = {
 206         PCMCIA_DEVICE_PROD_ID123("New Media", "SCSI", "Bus Toaster", 0xcdf7e4cc, 0x35f26476, 0xa8851d6e),
 207         PCMCIA_DEVICE_PROD_ID123("NOTEWORTHY", "SCSI", "Bus Toaster", 0xad89c6e8, 0x35f26476, 0xa8851d6e),
 208         PCMCIA_DEVICE_PROD_ID12("Adaptec, Inc.", "APA-1460 SCSI Host Adapter", 0x24ba9738, 0x3a3c3d20),
 209         PCMCIA_DEVICE_PROD_ID12("New Media Corporation", "Multimedia Sound/SCSI", 0x085a850b, 0x80a6535c),
 210         PCMCIA_DEVICE_PROD_ID12("NOTEWORTHY", "NWCOMB02 SCSI/AUDIO COMBO CARD", 0xad89c6e8, 0x5f9a615b),
 211         PCMCIA_DEVICE_NULL,
 212 };
 213 MODULE_DEVICE_TABLE(pcmcia, aha152x_ids);
 214
 215 static struct pcmcia_driver aha152x_cs_driver = {
 216         .owner          = THIS_MODULE,
 217         .name           = "aha152x_cs",
 218         .probe          = aha152x_probe,
 219         .remove         = aha152x_detach,
 220         .id_table       = aha152x_ids,
 221         .resume         = aha152x_resume,
 222 };
 223 module_pcmcia_driver(aha152x_cs_driver);