linux/drivers/scsi/pcmcia/aha152x_stub.c
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   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 */
  61static int host_id = 7;
  62static int reconnect = 1;
  63static int parity = 1;
  64static int synchronous = 1;
  65static int reset_delay = 100;
  66static int ext_trans = 0;
  67
  68module_param(host_id, int, 0);
  69module_param(reconnect, int, 0);
  70module_param(parity, int, 0);
  71module_param(synchronous, int, 0);
  72module_param(reset_delay, int, 0);
  73module_param(ext_trans, int, 0);
  74
  75MODULE_LICENSE("Dual MPL/GPL");
  76
  77/*====================================================================*/
  78
  79typedef struct scsi_info_t {
  80        struct pcmcia_device    *p_dev;
  81    struct Scsi_Host    *host;
  82} scsi_info_t;
  83
  84static void aha152x_release_cs(struct pcmcia_device *link);
  85static void aha152x_detach(struct pcmcia_device *p_dev);
  86static int aha152x_config_cs(struct pcmcia_device *link);
  87
  88static 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
 108static 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
 120static 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
 140static 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
 183failed:
 184    aha152x_release_cs(link);
 185    return -ENODEV;
 186}
 187
 188static 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
 196static 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
 205static 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};
 213MODULE_DEVICE_TABLE(pcmcia, aha152x_ids);
 214
 215static 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
 224static int __init init_aha152x_cs(void)
 225{
 226        return pcmcia_register_driver(&aha152x_cs_driver);
 227}
 228
 229static void __exit exit_aha152x_cs(void)
 230{
 231        pcmcia_unregister_driver(&aha152x_cs_driver);
 232}
 233
 234module_init(init_aha152x_cs);
 235module_exit(exit_aha152x_cs);
 236