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/version.h>
51 #include <pcmcia/cs_types.h>
52 #include <pcmcia/cs.h>
53 #include <pcmcia/cistpl.h>
54 #include <pcmcia/ds.h>
56 /*====================================================================*/
58 /* Module parameters */
60 MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
61 MODULE_DESCRIPTION("Future Domain PCMCIA SCSI driver");
62 MODULE_LICENSE("Dual MPL/GPL");
65 static int pc_debug = PCMCIA_DEBUG;
66 module_param(pc_debug, int, 0);
67 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
68 static char *version =
69 "fdomain_cs.c 1.47 2001/10/13 00:08:52 (David Hinds)";
71 #define DEBUG(n, args...)
74 /*====================================================================*/
76 typedef struct scsi_info_t {
79 struct Scsi_Host *host;
83 static void fdomain_release(dev_link_t *link);
84 static int fdomain_event(event_t event, int priority,
85 event_callback_args_t *args);
87 static dev_link_t *fdomain_attach(void);
88 static void fdomain_detach(dev_link_t *);
91 static dev_link_t *dev_list = NULL;
93 static dev_info_t dev_info = "fdomain_cs";
95 static dev_link_t *fdomain_attach(void)
98 client_reg_t client_reg;
102 DEBUG(0, "fdomain_attach()\n");
104 /* Create new SCSI device */
105 info = kmalloc(sizeof(*info), GFP_KERNEL);
106 if (!info) return NULL;
107 memset(info, 0, sizeof(*info));
108 link = &info->link; link->priv = info;
109 link->io.NumPorts1 = 0x10;
110 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
111 link->io.IOAddrLines = 10;
112 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
113 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
114 link->conf.Attributes = CONF_ENABLE_IRQ;
116 link->conf.IntType = INT_MEMORY_AND_IO;
117 link->conf.Present = PRESENT_OPTION;
119 /* Register with Card Services */
120 link->next = dev_list;
122 client_reg.dev_info = &dev_info;
123 client_reg.Version = 0x0210;
124 client_reg.event_callback_args.client_data = link;
125 ret = pcmcia_register_client(&link->handle, &client_reg);
127 cs_error(link->handle, RegisterClient, ret);
128 fdomain_detach(link);
133 } /* fdomain_attach */
135 /*====================================================================*/
137 static void fdomain_detach(dev_link_t *link)
141 DEBUG(0, "fdomain_detach(0x%p)\n", link);
143 /* Locate device structure */
144 for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
145 if (*linkp == link) break;
149 if (link->state & DEV_CONFIG)
150 fdomain_release(link);
153 pcmcia_deregister_client(link->handle);
155 /* Unlink device structure, free bits */
159 } /* fdomain_detach */
161 /*====================================================================*/
163 #define CS_CHECK(fn, ret) \
164 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
166 static void fdomain_config(dev_link_t *link)
168 client_handle_t handle = link->handle;
169 scsi_info_t *info = link->priv;
172 int i, last_ret, last_fn;
173 u_char tuple_data[64];
175 struct Scsi_Host *host;
177 DEBUG(0, "fdomain_config(0x%p)\n", link);
179 tuple.DesiredTuple = CISTPL_CONFIG;
180 tuple.TupleData = tuple_data;
181 tuple.TupleDataMax = 64;
182 tuple.TupleOffset = 0;
183 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
184 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
185 CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
186 link->conf.ConfigBase = parse.config.base;
189 link->state |= DEV_CONFIG;
191 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
192 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
194 if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
195 pcmcia_parse_tuple(handle, &tuple, &parse) != 0)
197 link->conf.ConfigIndex = parse.cftable_entry.index;
198 link->io.BasePort1 = parse.cftable_entry.io.win[0].base;
199 i = pcmcia_request_io(handle, &link->io);
200 if (i == CS_SUCCESS) break;
202 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple));
205 CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq));
206 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
209 release_region(link->io.BasePort1, link->io.NumPorts1);
211 /* Set configuration options for the fdomain driver */
212 sprintf(str, "%d,%d", link->io.BasePort1, link->irq.AssignedIRQ);
215 host = __fdomain_16x0_detect(&fdomain_driver_template);
217 printk(KERN_INFO "fdomain_cs: no SCSI devices found\n");
221 scsi_add_host(host, NULL); /* XXX handle failure */
222 scsi_scan_host(host);
224 sprintf(info->node.dev_name, "scsi%d", host->host_no);
225 link->dev = &info->node;
228 link->state &= ~DEV_CONFIG_PENDING;
232 cs_error(link->handle, last_fn, last_ret);
233 fdomain_release(link);
236 } /* fdomain_config */
238 /*====================================================================*/
240 static void fdomain_release(dev_link_t *link)
242 scsi_info_t *info = link->priv;
244 DEBUG(0, "fdomain_release(0x%p)\n", link);
246 scsi_remove_host(info->host);
249 pcmcia_release_configuration(link->handle);
250 pcmcia_release_io(link->handle, &link->io);
251 pcmcia_release_irq(link->handle, &link->irq);
253 scsi_unregister(info->host);
255 link->state &= ~DEV_CONFIG;
258 /*====================================================================*/
260 static int fdomain_event(event_t event, int priority,
261 event_callback_args_t *args)
263 dev_link_t *link = args->client_data;
265 DEBUG(1, "fdomain_event(0x%06x)\n", event);
268 case CS_EVENT_CARD_REMOVAL:
269 link->state &= ~DEV_PRESENT;
270 if (link->state & DEV_CONFIG)
271 fdomain_release(link);
273 case CS_EVENT_CARD_INSERTION:
274 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
275 fdomain_config(link);
277 case CS_EVENT_PM_SUSPEND:
278 link->state |= DEV_SUSPEND;
279 /* Fall through... */
280 case CS_EVENT_RESET_PHYSICAL:
281 if (link->state & DEV_CONFIG)
282 pcmcia_release_configuration(link->handle);
284 case CS_EVENT_PM_RESUME:
285 link->state &= ~DEV_SUSPEND;
286 /* Fall through... */
287 case CS_EVENT_CARD_RESET:
288 if (link->state & DEV_CONFIG) {
289 pcmcia_request_configuration(link->handle, &link->conf);
290 fdomain_16x0_bus_reset(NULL);
295 } /* fdomain_event */
298 static struct pcmcia_device_id fdomain_ids[] = {
299 PCMCIA_DEVICE_PROD_ID12("IBM Corp.", "SCSI PCMCIA Card", 0xe3736c88, 0x859cad20),
300 PCMCIA_DEVICE_PROD_ID1("SCSI PCMCIA Adapter Card", 0x8dacb57e),
301 PCMCIA_DEVICE_PROD_ID12(" SIMPLE TECHNOLOGY Corporation", "SCSI PCMCIA Credit Card Controller", 0x182bdafe, 0xc80d106f),
304 MODULE_DEVICE_TABLE(pcmcia, fdomain_ids);
306 static struct pcmcia_driver fdomain_cs_driver = {
307 .owner = THIS_MODULE,
309 .name = "fdomain_cs",
311 .attach = fdomain_attach,
312 .event = fdomain_event,
313 .detach = fdomain_detach,
314 .id_table = fdomain_ids,
317 static int __init init_fdomain_cs(void)
319 return pcmcia_register_driver(&fdomain_cs_driver);
322 static void __exit exit_fdomain_cs(void)
324 pcmcia_unregister_driver(&fdomain_cs_driver);
325 BUG_ON(dev_list != NULL);
328 module_init(init_fdomain_cs);
329 module_exit(exit_fdomain_cs);