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(struct pcmcia_device *p_dev);
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->handle);
132 } /* fdomain_attach */
134 /*====================================================================*/
136 static void fdomain_detach(struct pcmcia_device *p_dev)
138 dev_link_t *link = dev_to_instance(p_dev);
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);
152 /* Unlink device structure, free bits */
156 } /* fdomain_detach */
158 /*====================================================================*/
160 #define CS_CHECK(fn, ret) \
161 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
163 static void fdomain_config(dev_link_t *link)
165 client_handle_t handle = link->handle;
166 scsi_info_t *info = link->priv;
169 int i, last_ret, last_fn;
170 u_char tuple_data[64];
172 struct Scsi_Host *host;
174 DEBUG(0, "fdomain_config(0x%p)\n", link);
176 tuple.DesiredTuple = CISTPL_CONFIG;
177 tuple.TupleData = tuple_data;
178 tuple.TupleDataMax = 64;
179 tuple.TupleOffset = 0;
180 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
181 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
182 CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
183 link->conf.ConfigBase = parse.config.base;
186 link->state |= DEV_CONFIG;
188 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
189 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
191 if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
192 pcmcia_parse_tuple(handle, &tuple, &parse) != 0)
194 link->conf.ConfigIndex = parse.cftable_entry.index;
195 link->io.BasePort1 = parse.cftable_entry.io.win[0].base;
196 i = pcmcia_request_io(handle, &link->io);
197 if (i == CS_SUCCESS) break;
199 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple));
202 CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq));
203 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
206 release_region(link->io.BasePort1, link->io.NumPorts1);
208 /* Set configuration options for the fdomain driver */
209 sprintf(str, "%d,%d", link->io.BasePort1, link->irq.AssignedIRQ);
212 host = __fdomain_16x0_detect(&fdomain_driver_template);
214 printk(KERN_INFO "fdomain_cs: no SCSI devices found\n");
218 scsi_add_host(host, NULL); /* XXX handle failure */
219 scsi_scan_host(host);
221 sprintf(info->node.dev_name, "scsi%d", host->host_no);
222 link->dev = &info->node;
225 link->state &= ~DEV_CONFIG_PENDING;
229 cs_error(link->handle, last_fn, last_ret);
230 fdomain_release(link);
233 } /* fdomain_config */
235 /*====================================================================*/
237 static void fdomain_release(dev_link_t *link)
239 scsi_info_t *info = link->priv;
241 DEBUG(0, "fdomain_release(0x%p)\n", link);
243 scsi_remove_host(info->host);
246 pcmcia_release_configuration(link->handle);
247 pcmcia_release_io(link->handle, &link->io);
248 pcmcia_release_irq(link->handle, &link->irq);
250 scsi_unregister(info->host);
252 link->state &= ~DEV_CONFIG;
255 /*====================================================================*/
257 static int fdomain_suspend(struct pcmcia_device *dev)
259 dev_link_t *link = dev_to_instance(dev);
261 link->state |= DEV_SUSPEND;
262 if (link->state & DEV_CONFIG)
263 pcmcia_release_configuration(link->handle);
268 static int fdomain_resume(struct pcmcia_device *dev)
270 dev_link_t *link = dev_to_instance(dev);
272 link->state &= ~DEV_SUSPEND;
273 if (link->state & DEV_CONFIG) {
274 pcmcia_request_configuration(link->handle, &link->conf);
275 fdomain_16x0_bus_reset(NULL);
281 static int fdomain_event(event_t event, int priority,
282 event_callback_args_t *args)
284 dev_link_t *link = args->client_data;
286 DEBUG(1, "fdomain_event(0x%06x)\n", event);
289 case CS_EVENT_CARD_INSERTION:
290 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
291 fdomain_config(link);
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 .remove = fdomain_detach,
314 .id_table = fdomain_ids,
315 .suspend = fdomain_suspend,
316 .resume = fdomain_resume,
319 static int __init init_fdomain_cs(void)
321 return pcmcia_register_driver(&fdomain_cs_driver);
324 static void __exit exit_fdomain_cs(void)
326 pcmcia_unregister_driver(&fdomain_cs_driver);
327 BUG_ON(dev_list != NULL);
330 module_init(init_fdomain_cs);
331 module_exit(exit_fdomain_cs);