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>
49 #include <pcmcia/version.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");
63 /* Bit map of interrupts to choose from */
64 static int irq_mask = 0xdeb8;
65 MODULE_PARM(irq_mask, "i");
66 static int irq_list[4] = { -1 };
67 MODULE_PARM(irq_list, "1-4i");
70 static int pc_debug = PCMCIA_DEBUG;
71 MODULE_PARM(pc_debug, "i");
72 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
73 static char *version =
74 "fdomain_cs.c 1.47 2001/10/13 00:08:52 (David Hinds)";
76 #define DEBUG(n, args...)
79 /*====================================================================*/
81 typedef struct scsi_info_t {
84 struct Scsi_Host *host;
87 extern Scsi_Host_Template fdomain_driver_template;
88 extern void fdomain_setup(char *str, int *ints);
89 extern struct Scsi_Host *__fdomain_16x0_detect( Scsi_Host_Template *tpnt );
90 extern int fdomain_16x0_bus_reset(Scsi_Cmnd *SCpnt);
92 static void fdomain_release(dev_link_t *link);
93 static int fdomain_event(event_t event, int priority,
94 event_callback_args_t *args);
96 static dev_link_t *fdomain_attach(void);
97 static void fdomain_detach(dev_link_t *);
100 static dev_link_t *dev_list = NULL;
102 static dev_info_t dev_info = "fdomain_cs";
104 static dev_link_t *fdomain_attach(void)
107 client_reg_t client_reg;
111 DEBUG(0, "fdomain_attach()\n");
113 /* Create new SCSI device */
114 info = kmalloc(sizeof(*info), GFP_KERNEL);
115 if (!info) return NULL;
116 memset(info, 0, sizeof(*info));
117 link = &info->link; link->priv = info;
118 link->io.NumPorts1 = 0x10;
119 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
120 link->io.IOAddrLines = 10;
121 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
122 link->irq.IRQInfo1 = IRQ_INFO2_VALID|IRQ_LEVEL_ID;
123 if (irq_list[0] == -1)
124 link->irq.IRQInfo2 = irq_mask;
126 for (i = 0; i < 4; i++)
127 link->irq.IRQInfo2 |= 1 << irq_list[i];
128 link->conf.Attributes = CONF_ENABLE_IRQ;
130 link->conf.IntType = INT_MEMORY_AND_IO;
131 link->conf.Present = PRESENT_OPTION;
133 /* Register with Card Services */
134 link->next = dev_list;
136 client_reg.dev_info = &dev_info;
137 client_reg.Attributes = INFO_IO_CLIENT | INFO_CARD_SHARE;
138 client_reg.event_handler = &fdomain_event;
139 client_reg.EventMask =
140 CS_EVENT_RESET_REQUEST | CS_EVENT_CARD_RESET |
141 CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
142 CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
143 client_reg.Version = 0x0210;
144 client_reg.event_callback_args.client_data = link;
145 ret = pcmcia_register_client(&link->handle, &client_reg);
147 cs_error(link->handle, RegisterClient, ret);
148 fdomain_detach(link);
153 } /* fdomain_attach */
155 /*====================================================================*/
157 static void fdomain_detach(dev_link_t *link)
161 DEBUG(0, "fdomain_detach(0x%p)\n", link);
163 /* Locate device structure */
164 for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
165 if (*linkp == link) break;
169 if (link->state & DEV_CONFIG)
170 fdomain_release(link);
173 pcmcia_deregister_client(link->handle);
175 /* Unlink device structure, free bits */
179 } /* fdomain_detach */
181 /*====================================================================*/
183 #define CS_CHECK(fn, ret) \
184 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
186 static void fdomain_config(dev_link_t *link)
188 client_handle_t handle = link->handle;
189 scsi_info_t *info = link->priv;
192 int i, last_ret, last_fn, ints[3];
193 u_char tuple_data[64];
195 struct Scsi_Host *host;
197 DEBUG(0, "fdomain_config(0x%p)\n", link);
199 tuple.DesiredTuple = CISTPL_CONFIG;
200 tuple.TupleData = tuple_data;
201 tuple.TupleDataMax = 64;
202 tuple.TupleOffset = 0;
203 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
204 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
205 CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
206 link->conf.ConfigBase = parse.config.base;
209 link->state |= DEV_CONFIG;
211 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
212 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
214 if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
215 pcmcia_parse_tuple(handle, &tuple, &parse) != 0)
217 link->conf.ConfigIndex = parse.cftable_entry.index;
218 link->io.BasePort1 = parse.cftable_entry.io.win[0].base;
219 i = pcmcia_request_io(handle, &link->io);
220 if (i == CS_SUCCESS) break;
222 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple));
225 CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq));
226 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
229 release_region(link->io.BasePort1, link->io.NumPorts1);
231 /* Set configuration options for the fdomain driver */
233 ints[1] = link->io.BasePort1;
234 ints[2] = link->irq.AssignedIRQ;
235 sprintf(str, "%d,%d", link->io.BasePort1, link->irq.AssignedIRQ);
236 fdomain_setup(str, ints);
238 host = __fdomain_16x0_detect(&fdomain_driver_template);
240 printk(KERN_INFO "fdomain_cs: no SCSI devices found\n");
244 scsi_add_host(host, NULL); /* XXX handle failure */
245 scsi_scan_host(host);
247 sprintf(info->node.dev_name, "scsi%d", host->host_no);
248 link->dev = &info->node;
251 link->state &= ~DEV_CONFIG_PENDING;
255 cs_error(link->handle, last_fn, last_ret);
256 fdomain_release(link);
259 } /* fdomain_config */
261 /*====================================================================*/
263 static void fdomain_release(dev_link_t *link)
265 scsi_info_t *info = link->priv;
267 DEBUG(0, "fdomain_release(0x%p)\n", link);
269 scsi_remove_host(info->host);
272 pcmcia_release_configuration(link->handle);
273 pcmcia_release_io(link->handle, &link->io);
274 pcmcia_release_irq(link->handle, &link->irq);
276 scsi_unregister(info->host);
278 link->state &= ~DEV_CONFIG;
281 /*====================================================================*/
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);
300 case CS_EVENT_PM_SUSPEND:
301 link->state |= DEV_SUSPEND;
302 /* Fall through... */
303 case CS_EVENT_RESET_PHYSICAL:
304 if (link->state & DEV_CONFIG)
305 pcmcia_release_configuration(link->handle);
307 case CS_EVENT_PM_RESUME:
308 link->state &= ~DEV_SUSPEND;
309 /* Fall through... */
310 case CS_EVENT_CARD_RESET:
311 if (link->state & DEV_CONFIG) {
312 pcmcia_request_configuration(link->handle, &link->conf);
313 fdomain_16x0_bus_reset(NULL);
318 } /* fdomain_event */
320 static struct pcmcia_driver fdomain_cs_driver = {
321 .owner = THIS_MODULE,
323 .name = "fdomain_cs",
325 .attach = fdomain_attach,
326 .detach = fdomain_detach,
329 static int __init init_fdomain_cs(void)
331 return pcmcia_register_driver(&fdomain_cs_driver);
334 static void __exit exit_fdomain_cs(void)
336 pcmcia_unregister_driver(&fdomain_cs_driver);
338 /* XXX: this really needs to move into generic code.. */
339 while (dev_list != NULL)
340 fdomain_detach(dev_list);
343 module_init(init_fdomain_cs);
344 module_exit(exit_fdomain_cs);