1 /*======================================================================
3 A driver for Future Domain-compatible PCMCIA SCSI cards
5 fdomain_cs.c 1.47 2001/10/13 00:08:52
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/
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.
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.
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.
32 ======================================================================*/
34 #include <linux/module.h>
35 #include <linux/init.h>
36 #include <linux/kernel.h>
37 #include <linux/sched.h>
38 #include <linux/slab.h>
39 #include <linux/string.h>
40 #include <linux/ioport.h>
41 #include <scsi/scsi.h>
42 #include <linux/major.h>
43 #include <linux/blkdev.h>
44 #include <scsi/scsi_ioctl.h>
47 #include <scsi/scsi_host.h>
50 #include <pcmcia/cs_types.h>
51 #include <pcmcia/cs.h>
52 #include <pcmcia/cistpl.h>
53 #include <pcmcia/ds.h>
55 /*====================================================================*/
57 /* Module parameters */
59 MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
60 MODULE_DESCRIPTION("Future Domain PCMCIA SCSI driver");
61 MODULE_LICENSE("Dual MPL/GPL");
64 static int pc_debug = PCMCIA_DEBUG;
65 module_param(pc_debug, int, 0);
66 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
67 static char *version =
68 "fdomain_cs.c 1.47 2001/10/13 00:08:52 (David Hinds)";
70 #define DEBUG(n, args...)
73 /*====================================================================*/
75 typedef struct scsi_info_t {
78 struct Scsi_Host *host;
82 static void fdomain_release(dev_link_t *link);
83 static int fdomain_event(event_t event, int priority,
84 event_callback_args_t *args);
86 static dev_link_t *fdomain_attach(void);
87 static void fdomain_detach(dev_link_t *);
90 static dev_link_t *dev_list = NULL;
92 static dev_info_t dev_info = "fdomain_cs";
94 static dev_link_t *fdomain_attach(void)
97 client_reg_t client_reg;
101 DEBUG(0, "fdomain_attach()\n");
103 /* Create new SCSI device */
104 info = kmalloc(sizeof(*info), GFP_KERNEL);
105 if (!info) return NULL;
106 memset(info, 0, sizeof(*info));
107 link = &info->link; link->priv = info;
108 link->io.NumPorts1 = 0x10;
109 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
110 link->io.IOAddrLines = 10;
111 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
112 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
113 link->conf.Attributes = CONF_ENABLE_IRQ;
115 link->conf.IntType = INT_MEMORY_AND_IO;
116 link->conf.Present = PRESENT_OPTION;
118 /* Register with Card Services */
119 link->next = dev_list;
121 client_reg.dev_info = &dev_info;
122 client_reg.Version = 0x0210;
123 client_reg.event_callback_args.client_data = link;
124 ret = pcmcia_register_client(&link->handle, &client_reg);
126 cs_error(link->handle, RegisterClient, ret);
127 fdomain_detach(link);
132 } /* fdomain_attach */
134 /*====================================================================*/
136 static void fdomain_detach(dev_link_t *link)
140 DEBUG(0, "fdomain_detach(0x%p)\n", link);
142 /* Locate device structure */
143 for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
144 if (*linkp == link) break;
148 if (link->state & DEV_CONFIG)
149 fdomain_release(link);
152 pcmcia_deregister_client(link->handle);
154 /* Unlink device structure, free bits */
158 } /* fdomain_detach */
160 /*====================================================================*/
162 #define CS_CHECK(fn, ret) \
163 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
165 static void fdomain_config(dev_link_t *link)
167 client_handle_t handle = link->handle;
168 scsi_info_t *info = link->priv;
171 int i, last_ret, last_fn;
172 u_char tuple_data[64];
174 struct Scsi_Host *host;
176 DEBUG(0, "fdomain_config(0x%p)\n", link);
178 tuple.DesiredTuple = CISTPL_CONFIG;
179 tuple.TupleData = tuple_data;
180 tuple.TupleDataMax = 64;
181 tuple.TupleOffset = 0;
182 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
183 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
184 CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
185 link->conf.ConfigBase = parse.config.base;
188 link->state |= DEV_CONFIG;
190 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
191 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
193 if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
194 pcmcia_parse_tuple(handle, &tuple, &parse) != 0)
196 link->conf.ConfigIndex = parse.cftable_entry.index;
197 link->io.BasePort1 = parse.cftable_entry.io.win[0].base;
198 i = pcmcia_request_io(handle, &link->io);
199 if (i == CS_SUCCESS) break;
201 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple));
204 CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq));
205 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
208 release_region(link->io.BasePort1, link->io.NumPorts1);
210 /* Set configuration options for the fdomain driver */
211 sprintf(str, "%d,%d", link->io.BasePort1, link->irq.AssignedIRQ);
214 host = __fdomain_16x0_detect(&fdomain_driver_template);
216 printk(KERN_INFO "fdomain_cs: no SCSI devices found\n");
220 scsi_add_host(host, NULL); /* XXX handle failure */
221 scsi_scan_host(host);
223 sprintf(info->node.dev_name, "scsi%d", host->host_no);
224 link->dev = &info->node;
227 link->state &= ~DEV_CONFIG_PENDING;
231 cs_error(link->handle, last_fn, last_ret);
232 fdomain_release(link);
235 } /* fdomain_config */
237 /*====================================================================*/
239 static void fdomain_release(dev_link_t *link)
241 scsi_info_t *info = link->priv;
243 DEBUG(0, "fdomain_release(0x%p)\n", link);
245 scsi_remove_host(info->host);
248 pcmcia_release_configuration(link->handle);
249 pcmcia_release_io(link->handle, &link->io);
250 pcmcia_release_irq(link->handle, &link->irq);
252 scsi_unregister(info->host);
254 link->state &= ~DEV_CONFIG;
257 /*====================================================================*/
259 static int fdomain_suspend(struct pcmcia_device *dev)
261 dev_link_t *link = dev_to_instance(dev);
263 link->state |= DEV_SUSPEND;
264 if (link->state & DEV_CONFIG)
265 pcmcia_release_configuration(link->handle);
270 static int fdomain_resume(struct pcmcia_device *dev)
272 dev_link_t *link = dev_to_instance(dev);
274 link->state &= ~DEV_SUSPEND;
275 if (link->state & DEV_CONFIG) {
276 pcmcia_request_configuration(link->handle, &link->conf);
277 fdomain_16x0_bus_reset(NULL);
283 static int fdomain_event(event_t event, int priority,
284 event_callback_args_t *args)
286 dev_link_t *link = args->client_data;
288 DEBUG(1, "fdomain_event(0x%06x)\n", event);
291 case CS_EVENT_CARD_REMOVAL:
292 link->state &= ~DEV_PRESENT;
293 if (link->state & DEV_CONFIG)
294 fdomain_release(link);
296 case CS_EVENT_CARD_INSERTION:
297 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
298 fdomain_config(link);
302 } /* fdomain_event */
305 static struct pcmcia_device_id fdomain_ids[] = {
306 PCMCIA_DEVICE_PROD_ID12("IBM Corp.", "SCSI PCMCIA Card", 0xe3736c88, 0x859cad20),
307 PCMCIA_DEVICE_PROD_ID1("SCSI PCMCIA Adapter Card", 0x8dacb57e),
308 PCMCIA_DEVICE_PROD_ID12(" SIMPLE TECHNOLOGY Corporation", "SCSI PCMCIA Credit Card Controller", 0x182bdafe, 0xc80d106f),
311 MODULE_DEVICE_TABLE(pcmcia, fdomain_ids);
313 static struct pcmcia_driver fdomain_cs_driver = {
314 .owner = THIS_MODULE,
316 .name = "fdomain_cs",
318 .attach = fdomain_attach,
319 .event = fdomain_event,
320 .detach = fdomain_detach,
321 .id_table = fdomain_ids,
322 .suspend = fdomain_suspend,
323 .resume = fdomain_resume,
326 static int __init init_fdomain_cs(void)
328 return pcmcia_register_driver(&fdomain_cs_driver);
331 static void __exit exit_fdomain_cs(void)
333 pcmcia_unregister_driver(&fdomain_cs_driver);
334 BUG_ON(dev_list != NULL);
337 module_init(init_fdomain_cs);
338 module_exit(exit_fdomain_cs);