drivers/scsi/pcmcia/fdomain_stub.c

   1 /*======================================================================
   2
   3     A driver for Future Domain-compatible PCMCIA SCSI cards
   4
   5     fdomain_cs.c 1.47 2001/10/13 00:08:52
   6
   7     The contents of this file are subject to the Mozilla Public
   8     License Version 1.1 (the "License"); you may not use this file
   9     except in compliance with the License. You may obtain a copy of
  10     the License at http://www.mozilla.org/MPL/
  11
  12     Software distributed under the License is distributed on an "AS
  13     IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
  14     implied. See the License for the specific language governing
  15     rights and limitations under the License.
  16
  17     The initial developer of the original code is David A. Hinds
  18     <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
  19     are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
  20
  21     Alternatively, the contents of this file may be used under the
  22     terms of the GNU General Public License version 2 (the "GPL"), in
  23     which case the provisions of the GPL are applicable instead of the
  24     above.  If you wish to allow the use of your version of this file
  25     only under the terms of the GPL and not to allow others to use
  26     your version of this file under the MPL, indicate your decision
  27     by deleting the provisions above and replace them with the notice
  28     and other provisions required by the GPL.  If you do not delete
  29     the provisions above, a recipient may use your version of this
  30     file under either the MPL or the GPL.
  31
  32 ======================================================================*/
  33
  34 #include <linux/module.h>
  35 #include <linux/init.h>
  36 #include <linux/kernel.h>
  37 #include <linux/slab.h>
  38 #include <linux/string.h>
  39 #include <linux/ioport.h>
  40 #include <scsi/scsi.h>
  41 #include <linux/major.h>
  42 #include <linux/blkdev.h>
  43 #include <scsi/scsi_ioctl.h>
  44
  45 #include "scsi.h"
  46 #include <scsi/scsi_host.h>
  47 #include "fdomain.h"
  48
  49 #include <pcmcia/cs_types.h>
  50 #include <pcmcia/cs.h>
  51 #include <pcmcia/cistpl.h>
  52 #include <pcmcia/ds.h>
  53
  54 /*====================================================================*/
  55
  56 /* Module parameters */
  57
  58 MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
  59 MODULE_DESCRIPTION("Future Domain PCMCIA SCSI driver");
  60 MODULE_LICENSE("Dual MPL/GPL");
  61
  62 #ifdef PCMCIA_DEBUG
  63 static int pc_debug = PCMCIA_DEBUG;
  64 module_param(pc_debug, int, 0);
  65 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
  66 static char *version =
  67 "fdomain_cs.c 1.47 2001/10/13 00:08:52 (David Hinds)";
  68 #else
  69 #define DEBUG(n, args...)
  70 #endif
  71
  72 /*====================================================================*/
  73
  74 typedef struct scsi_info_t {
  75         struct pcmcia_device    *p_dev;
  76     dev_node_t          node;
  77     struct Scsi_Host    *host;
  78 } scsi_info_t;
  79
  80
  81 static void fdomain_release(struct pcmcia_device *link);
  82 static void fdomain_detach(struct pcmcia_device *p_dev);
  83 static int fdomain_config(struct pcmcia_device *link);
  84
  85 static int fdomain_probe(struct pcmcia_device *link)
  86 {
  87         scsi_info_t *info;
  88
  89         DEBUG(0, "fdomain_attach()\n");
  90
  91         /* Create new SCSI device */
  92         info = kzalloc(sizeof(*info), GFP_KERNEL);
  93         if (!info)
  94                 return -ENOMEM;
  95
  96         info->p_dev = link;
  97         link->priv = info;
  98         link->io.NumPorts1 = 0x10;
  99         link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
 100         link->io.IOAddrLines = 10;
 101         link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
 102         link->irq.IRQInfo1 = IRQ_LEVEL_ID;
 103         link->conf.Attributes = CONF_ENABLE_IRQ;
 104         link->conf.IntType = INT_MEMORY_AND_IO;
 105         link->conf.Present = PRESENT_OPTION;
 106
 107         return fdomain_config(link);
 108 } /* fdomain_attach */
 109
 110 /*====================================================================*/
 111
 112 static void fdomain_detach(struct pcmcia_device *link)
 113 {
 114         DEBUG(0, "fdomain_detach(0x%p)\n", link);
 115
 116         fdomain_release(link);
 117
 118         kfree(link->priv);
 119 } /* fdomain_detach */
 120
 121 /*====================================================================*/
 122
 123 #define CS_CHECK(fn, ret) \
 124 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
 125
 126 static int fdomain_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.BasePort1 = cfg->io.win[0].base;
 133         return pcmcia_request_io(p_dev, &p_dev->io);
 134 }
 135
 136
 137 static int fdomain_config(struct pcmcia_device *link)
 138 {
 139     scsi_info_t *info = link->priv;
 140     int last_ret, last_fn;
 141     char str[22];
 142     struct Scsi_Host *host;
 143
 144     DEBUG(0, "fdomain_config(0x%p)\n", link);
 145
 146     last_ret = pcmcia_loop_config(link, fdomain_config_check, NULL);
 147     if (last_ret) {
 148             cs_error(link, RequestIO, last_ret);
 149             goto failed;
 150     }
 151
 152     CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
 153     CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
 154
 155     /* A bad hack... */
 156     release_region(link->io.BasePort1, link->io.NumPorts1);
 157
 158     /* Set configuration options for the fdomain driver */
 159     sprintf(str, "%d,%d", link->io.BasePort1, link->irq.AssignedIRQ);
 160     fdomain_setup(str);
 161
 162     host = __fdomain_16x0_detect(&fdomain_driver_template);
 163     if (!host) {
 164         printk(KERN_INFO "fdomain_cs: no SCSI devices found\n");
 165         goto cs_failed;
 166     }
 167
 168     if (scsi_add_host(host, NULL))
 169             goto cs_failed;
 170     scsi_scan_host(host);
 171
 172     sprintf(info->node.dev_name, "scsi%d", host->host_no);
 173     link->dev_node = &info->node;
 174     info->host = host;
 175
 176     return 0;
 177
 178 cs_failed:
 179     cs_error(link, last_fn, last_ret);
 180 failed:
 181     fdomain_release(link);
 182     return -ENODEV;
 183 } /* fdomain_config */
 184
 185 /*====================================================================*/
 186
 187 static void fdomain_release(struct pcmcia_device *link)
 188 {
 189         scsi_info_t *info = link->priv;
 190
 191         DEBUG(0, "fdomain_release(0x%p)\n", link);
 192
 193         scsi_remove_host(info->host);
 194         pcmcia_disable_device(link);
 195         scsi_unregister(info->host);
 196 }
 197
 198 /*====================================================================*/
 199
 200 static int fdomain_resume(struct pcmcia_device *link)
 201 {
 202         fdomain_16x0_bus_reset(NULL);
 203
 204         return 0;
 205 }
 206
 207 static struct pcmcia_device_id fdomain_ids[] = {
 208         PCMCIA_DEVICE_PROD_ID12("IBM Corp.", "SCSI PCMCIA Card", 0xe3736c88, 0x859cad20),
 209         PCMCIA_DEVICE_PROD_ID1("SCSI PCMCIA Adapter Card", 0x8dacb57e),
 210         PCMCIA_DEVICE_PROD_ID12(" SIMPLE TECHNOLOGY Corporation", "SCSI PCMCIA Credit Card Controller", 0x182bdafe, 0xc80d106f),
 211         PCMCIA_DEVICE_NULL,
 212 };
 213 MODULE_DEVICE_TABLE(pcmcia, fdomain_ids);
 214
 215 static struct pcmcia_driver fdomain_cs_driver = {
 216         .owner          = THIS_MODULE,
 217         .drv            = {
 218                 .name   = "fdomain_cs",
 219         },
 220         .probe          = fdomain_probe,
 221         .remove         = fdomain_detach,
 222         .id_table       = fdomain_ids,
 223         .resume         = fdomain_resume,
 224 };
 225
 226 static int __init init_fdomain_cs(void)
 227 {
 228         return pcmcia_register_driver(&fdomain_cs_driver);
 229 }
 230
 231 static void __exit exit_fdomain_cs(void)
 232 {
 233         pcmcia_unregister_driver(&fdomain_cs_driver);
 234 }
 235
 236 module_init(init_fdomain_cs);
 237 module_exit(exit_fdomain_cs);