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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/scsi/pcmcia/fdomain_stub.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/scsi/pcmcia/fdomain_stub.c')
-rw-r--r--drivers/scsi/pcmcia/fdomain_stub.c323
1 files changed, 323 insertions, 0 deletions
diff --git a/drivers/scsi/pcmcia/fdomain_stub.c b/drivers/scsi/pcmcia/fdomain_stub.c
new file mode 100644
index 000000000000..3df7bc72e354
--- /dev/null
+++ b/drivers/scsi/pcmcia/fdomain_stub.c
@@ -0,0 +1,323 @@
1/*======================================================================
2
3 A driver for Future Domain-compatible PCMCIA SCSI cards
4
5 fdomain_cs.c 1.47 2001/10/13 00:08:52
6
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/
11
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.
16
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.
20
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.
31
32======================================================================*/
33
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>
45
46#include "scsi.h"
47#include <scsi/scsi_host.h>
48#include "fdomain.h"
49
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>
55
56/*====================================================================*/
57
58/* Module parameters */
59
60MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
61MODULE_DESCRIPTION("Future Domain PCMCIA SCSI driver");
62MODULE_LICENSE("Dual MPL/GPL");
63
64#ifdef PCMCIA_DEBUG
65static int pc_debug = PCMCIA_DEBUG;
66module_param(pc_debug, int, 0);
67#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
68static char *version =
69"fdomain_cs.c 1.47 2001/10/13 00:08:52 (David Hinds)";
70#else
71#define DEBUG(n, args...)
72#endif
73
74/*====================================================================*/
75
76typedef struct scsi_info_t {
77 dev_link_t link;
78 dev_node_t node;
79 struct Scsi_Host *host;
80} scsi_info_t;
81
82
83static void fdomain_release(dev_link_t *link);
84static int fdomain_event(event_t event, int priority,
85 event_callback_args_t *args);
86
87static dev_link_t *fdomain_attach(void);
88static void fdomain_detach(dev_link_t *);
89
90
91static dev_link_t *dev_list = NULL;
92
93static dev_info_t dev_info = "fdomain_cs";
94
95static dev_link_t *fdomain_attach(void)
96{
97 scsi_info_t *info;
98 client_reg_t client_reg;
99 dev_link_t *link;
100 int ret;
101
102 DEBUG(0, "fdomain_attach()\n");
103
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;
115 link->conf.Vcc = 50;
116 link->conf.IntType = INT_MEMORY_AND_IO;
117 link->conf.Present = PRESENT_OPTION;
118
119 /* Register with Card Services */
120 link->next = dev_list;
121 dev_list = link;
122 client_reg.dev_info = &dev_info;
123 client_reg.event_handler = &fdomain_event;
124 client_reg.EventMask =
125 CS_EVENT_RESET_REQUEST | CS_EVENT_CARD_RESET |
126 CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
127 CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
128 client_reg.Version = 0x0210;
129 client_reg.event_callback_args.client_data = link;
130 ret = pcmcia_register_client(&link->handle, &client_reg);
131 if (ret != 0) {
132 cs_error(link->handle, RegisterClient, ret);
133 fdomain_detach(link);
134 return NULL;
135 }
136
137 return link;
138} /* fdomain_attach */
139
140/*====================================================================*/
141
142static void fdomain_detach(dev_link_t *link)
143{
144 dev_link_t **linkp;
145
146 DEBUG(0, "fdomain_detach(0x%p)\n", link);
147
148 /* Locate device structure */
149 for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
150 if (*linkp == link) break;
151 if (*linkp == NULL)
152 return;
153
154 if (link->state & DEV_CONFIG)
155 fdomain_release(link);
156
157 if (link->handle)
158 pcmcia_deregister_client(link->handle);
159
160 /* Unlink device structure, free bits */
161 *linkp = link->next;
162 kfree(link->priv);
163
164} /* fdomain_detach */
165
166/*====================================================================*/
167
168#define CS_CHECK(fn, ret) \
169do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
170
171static void fdomain_config(dev_link_t *link)
172{
173 client_handle_t handle = link->handle;
174 scsi_info_t *info = link->priv;
175 tuple_t tuple;
176 cisparse_t parse;
177 int i, last_ret, last_fn;
178 u_char tuple_data[64];
179 char str[16];
180 struct Scsi_Host *host;
181
182 DEBUG(0, "fdomain_config(0x%p)\n", link);
183
184 tuple.DesiredTuple = CISTPL_CONFIG;
185 tuple.TupleData = tuple_data;
186 tuple.TupleDataMax = 64;
187 tuple.TupleOffset = 0;
188 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
189 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
190 CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
191 link->conf.ConfigBase = parse.config.base;
192
193 /* Configure card */
194 link->state |= DEV_CONFIG;
195
196 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
197 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
198 while (1) {
199 if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
200 pcmcia_parse_tuple(handle, &tuple, &parse) != 0)
201 goto next_entry;
202 link->conf.ConfigIndex = parse.cftable_entry.index;
203 link->io.BasePort1 = parse.cftable_entry.io.win[0].base;
204 i = pcmcia_request_io(handle, &link->io);
205 if (i == CS_SUCCESS) break;
206 next_entry:
207 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple));
208 }
209
210 CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq));
211 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
212
213 /* A bad hack... */
214 release_region(link->io.BasePort1, link->io.NumPorts1);
215
216 /* Set configuration options for the fdomain driver */
217 sprintf(str, "%d,%d", link->io.BasePort1, link->irq.AssignedIRQ);
218 fdomain_setup(str);
219
220 host = __fdomain_16x0_detect(&fdomain_driver_template);
221 if (!host) {
222 printk(KERN_INFO "fdomain_cs: no SCSI devices found\n");
223 goto cs_failed;
224 }
225
226 scsi_add_host(host, NULL); /* XXX handle failure */
227 scsi_scan_host(host);
228
229 sprintf(info->node.dev_name, "scsi%d", host->host_no);
230 link->dev = &info->node;
231 info->host = host;
232
233 link->state &= ~DEV_CONFIG_PENDING;
234 return;
235
236cs_failed:
237 cs_error(link->handle, last_fn, last_ret);
238 fdomain_release(link);
239 return;
240
241} /* fdomain_config */
242
243/*====================================================================*/
244
245static void fdomain_release(dev_link_t *link)
246{
247 scsi_info_t *info = link->priv;
248
249 DEBUG(0, "fdomain_release(0x%p)\n", link);
250
251 scsi_remove_host(info->host);
252 link->dev = NULL;
253
254 pcmcia_release_configuration(link->handle);
255 pcmcia_release_io(link->handle, &link->io);
256 pcmcia_release_irq(link->handle, &link->irq);
257
258 scsi_unregister(info->host);
259
260 link->state &= ~DEV_CONFIG;
261}
262
263/*====================================================================*/
264
265static int fdomain_event(event_t event, int priority,
266 event_callback_args_t *args)
267{
268 dev_link_t *link = args->client_data;
269
270 DEBUG(1, "fdomain_event(0x%06x)\n", event);
271
272 switch (event) {
273 case CS_EVENT_CARD_REMOVAL:
274 link->state &= ~DEV_PRESENT;
275 if (link->state & DEV_CONFIG)
276 fdomain_release(link);
277 break;
278 case CS_EVENT_CARD_INSERTION:
279 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
280 fdomain_config(link);
281 break;
282 case CS_EVENT_PM_SUSPEND:
283 link->state |= DEV_SUSPEND;
284 /* Fall through... */
285 case CS_EVENT_RESET_PHYSICAL:
286 if (link->state & DEV_CONFIG)
287 pcmcia_release_configuration(link->handle);
288 break;
289 case CS_EVENT_PM_RESUME:
290 link->state &= ~DEV_SUSPEND;
291 /* Fall through... */
292 case CS_EVENT_CARD_RESET:
293 if (link->state & DEV_CONFIG) {
294 pcmcia_request_configuration(link->handle, &link->conf);
295 fdomain_16x0_bus_reset(NULL);
296 }
297 break;
298 }
299 return 0;
300} /* fdomain_event */
301
302static struct pcmcia_driver fdomain_cs_driver = {
303 .owner = THIS_MODULE,
304 .drv = {
305 .name = "fdomain_cs",
306 },
307 .attach = fdomain_attach,
308 .detach = fdomain_detach,
309};
310
311static int __init init_fdomain_cs(void)
312{
313 return pcmcia_register_driver(&fdomain_cs_driver);
314}
315
316static void __exit exit_fdomain_cs(void)
317{
318 pcmcia_unregister_driver(&fdomain_cs_driver);
319 BUG_ON(dev_list != NULL);
320}
321
322module_init(init_fdomain_cs);
323module_exit(exit_fdomain_cs);