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_info_t dev_info = "fdomain_cs";
92 static dev_link_t *fdomain_attach(void)
95 client_reg_t client_reg;
99 DEBUG(0, "fdomain_attach()\n");
101 /* Create new SCSI device */
102 info = kmalloc(sizeof(*info), GFP_KERNEL);
103 if (!info) return NULL;
104 memset(info, 0, sizeof(*info));
105 link = &info->link; link->priv = info;
106 link->io.NumPorts1 = 0x10;
107 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
108 link->io.IOAddrLines = 10;
109 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
110 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
111 link->conf.Attributes = CONF_ENABLE_IRQ;
113 link->conf.IntType = INT_MEMORY_AND_IO;
114 link->conf.Present = PRESENT_OPTION;
116 /* Register with Card Services */
118 client_reg.dev_info = &dev_info;
119 client_reg.Version = 0x0210;
120 client_reg.event_callback_args.client_data = link;
121 ret = pcmcia_register_client(&link->handle, &client_reg);
123 cs_error(link->handle, RegisterClient, ret);
124 fdomain_detach(link->handle);
129 } /* fdomain_attach */
131 /*====================================================================*/
133 static void fdomain_detach(struct pcmcia_device *p_dev)
135 dev_link_t *link = dev_to_instance(p_dev);
137 DEBUG(0, "fdomain_detach(0x%p)\n", link);
139 if (link->state & DEV_CONFIG)
140 fdomain_release(link);
143 } /* fdomain_detach */
145 /*====================================================================*/
147 #define CS_CHECK(fn, ret) \
148 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
150 static void fdomain_config(dev_link_t *link)
152 client_handle_t handle = link->handle;
153 scsi_info_t *info = link->priv;
156 int i, last_ret, last_fn;
157 u_char tuple_data[64];
159 struct Scsi_Host *host;
161 DEBUG(0, "fdomain_config(0x%p)\n", link);
163 tuple.DesiredTuple = CISTPL_CONFIG;
164 tuple.TupleData = tuple_data;
165 tuple.TupleDataMax = 64;
166 tuple.TupleOffset = 0;
167 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
168 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
169 CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
170 link->conf.ConfigBase = parse.config.base;
173 link->state |= DEV_CONFIG;
175 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
176 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
178 if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
179 pcmcia_parse_tuple(handle, &tuple, &parse) != 0)
181 link->conf.ConfigIndex = parse.cftable_entry.index;
182 link->io.BasePort1 = parse.cftable_entry.io.win[0].base;
183 i = pcmcia_request_io(handle, &link->io);
184 if (i == CS_SUCCESS) break;
186 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple));
189 CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq));
190 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
193 release_region(link->io.BasePort1, link->io.NumPorts1);
195 /* Set configuration options for the fdomain driver */
196 sprintf(str, "%d,%d", link->io.BasePort1, link->irq.AssignedIRQ);
199 host = __fdomain_16x0_detect(&fdomain_driver_template);
201 printk(KERN_INFO "fdomain_cs: no SCSI devices found\n");
205 scsi_add_host(host, NULL); /* XXX handle failure */
206 scsi_scan_host(host);
208 sprintf(info->node.dev_name, "scsi%d", host->host_no);
209 link->dev = &info->node;
212 link->state &= ~DEV_CONFIG_PENDING;
216 cs_error(link->handle, last_fn, last_ret);
217 fdomain_release(link);
220 } /* fdomain_config */
222 /*====================================================================*/
224 static void fdomain_release(dev_link_t *link)
226 scsi_info_t *info = link->priv;
228 DEBUG(0, "fdomain_release(0x%p)\n", link);
230 scsi_remove_host(info->host);
233 pcmcia_release_configuration(link->handle);
234 pcmcia_release_io(link->handle, &link->io);
235 pcmcia_release_irq(link->handle, &link->irq);
237 scsi_unregister(info->host);
239 link->state &= ~DEV_CONFIG;
242 /*====================================================================*/
244 static int fdomain_suspend(struct pcmcia_device *dev)
246 dev_link_t *link = dev_to_instance(dev);
248 link->state |= DEV_SUSPEND;
249 if (link->state & DEV_CONFIG)
250 pcmcia_release_configuration(link->handle);
255 static int fdomain_resume(struct pcmcia_device *dev)
257 dev_link_t *link = dev_to_instance(dev);
259 link->state &= ~DEV_SUSPEND;
260 if (link->state & DEV_CONFIG) {
261 pcmcia_request_configuration(link->handle, &link->conf);
262 fdomain_16x0_bus_reset(NULL);
268 static int fdomain_event(event_t event, int priority,
269 event_callback_args_t *args)
271 dev_link_t *link = args->client_data;
273 DEBUG(1, "fdomain_event(0x%06x)\n", event);
276 case CS_EVENT_CARD_INSERTION:
277 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
278 fdomain_config(link);
282 } /* fdomain_event */
285 static struct pcmcia_device_id fdomain_ids[] = {
286 PCMCIA_DEVICE_PROD_ID12("IBM Corp.", "SCSI PCMCIA Card", 0xe3736c88, 0x859cad20),
287 PCMCIA_DEVICE_PROD_ID1("SCSI PCMCIA Adapter Card", 0x8dacb57e),
288 PCMCIA_DEVICE_PROD_ID12(" SIMPLE TECHNOLOGY Corporation", "SCSI PCMCIA Credit Card Controller", 0x182bdafe, 0xc80d106f),
291 MODULE_DEVICE_TABLE(pcmcia, fdomain_ids);
293 static struct pcmcia_driver fdomain_cs_driver = {
294 .owner = THIS_MODULE,
296 .name = "fdomain_cs",
298 .attach = fdomain_attach,
299 .event = fdomain_event,
300 .remove = fdomain_detach,
301 .id_table = fdomain_ids,
302 .suspend = fdomain_suspend,
303 .resume = fdomain_resume,
306 static int __init init_fdomain_cs(void)
308 return pcmcia_register_driver(&fdomain_cs_driver);
311 static void __exit exit_fdomain_cs(void)
313 pcmcia_unregister_driver(&fdomain_cs_driver);
316 module_init(init_fdomain_cs);
317 module_exit(exit_fdomain_cs);