[PATCH] pcmcia: use bitfield instead of p_state and state
[deliverable/linux.git] / drivers / isdn / hisax / teles_cs.c
CommitLineData
1da177e4
LT
1/* $Id: teles_cs.c,v 1.1.2.2 2004/01/25 15:07:06 keil Exp $ */
2/*======================================================================
3
4 A teles S0 PCMCIA client driver
5
6 Based on skeleton by David Hinds, dhinds@allegro.stanford.edu
7 Written by Christof Petig, christof.petig@wtal.de
8
9 Also inspired by ELSA PCMCIA driver
10 by Klaus Lichtenwalder <Lichtenwalder@ACM.org>
11
12 Extentions to new hisax_pcmcia by Karsten Keil
13
14 minor changes to be compatible with kernel 2.4.x
15 by Jan.Schubert@GMX.li
16
17======================================================================*/
18
19#include <linux/kernel.h>
20#include <linux/module.h>
21#include <linux/init.h>
22#include <linux/sched.h>
23#include <linux/ptrace.h>
24#include <linux/slab.h>
25#include <linux/string.h>
26#include <linux/timer.h>
27#include <linux/ioport.h>
28#include <asm/io.h>
29#include <asm/system.h>
30
1da177e4
LT
31#include <pcmcia/cs_types.h>
32#include <pcmcia/cs.h>
33#include <pcmcia/cistpl.h>
34#include <pcmcia/cisreg.h>
35#include <pcmcia/ds.h>
36#include "hisax_cfg.h"
37
38MODULE_DESCRIPTION("ISDN4Linux: PCMCIA client driver for Teles PCMCIA cards");
39MODULE_AUTHOR("Christof Petig, christof.petig@wtal.de, Karsten Keil, kkeil@suse.de");
40MODULE_LICENSE("GPL");
41
42/*
43 All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If
44 you do not define PCMCIA_DEBUG at all, all the debug code will be
45 left out. If you compile with PCMCIA_DEBUG=0, the debug code will
46 be present but disabled -- but it can then be enabled for specific
47 modules at load time with a 'pc_debug=#' option to insmod.
48*/
49
50#ifdef PCMCIA_DEBUG
51static int pc_debug = PCMCIA_DEBUG;
52module_param(pc_debug, int, 0);
53#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args);
54static char *version =
55"teles_cs.c 2.10 2002/07/30 22:23:34 kkeil";
56#else
57#define DEBUG(n, args...)
58#endif
59
60/*====================================================================*/
61
62/* Parameters that can be set with 'insmod' */
63
64static int protocol = 2; /* EURO-ISDN Default */
65module_param(protocol, int, 0);
66
67/*====================================================================*/
68
69/*
70 The event() function is this driver's Card Services event handler.
71 It will be called by Card Services when an appropriate card status
72 event is received. The config() and release() entry points are
73 used to configure or release a socket, in response to card insertion
74 and ejection events. They are invoked from the teles_cs event
75 handler.
76*/
77
15b99ac1 78static int teles_cs_config(struct pcmcia_device *link);
fba395ee 79static void teles_cs_release(struct pcmcia_device *link);
1da177e4
LT
80
81/*
82 The attach() and detach() entry points are used to create and destroy
83 "instances" of the driver, where each instance represents everything
84 needed to manage one actual PCMCIA card.
85*/
86
cc3b4866 87static void teles_detach(struct pcmcia_device *p_dev);
1da177e4 88
1da177e4
LT
89/*
90 A linked list of "instances" of the teles_cs device. Each actual
91 PCMCIA card corresponds to one device instance, and is described
fba395ee 92 by one struct pcmcia_device structure (defined in ds.h).
1da177e4
LT
93
94 You may not want to use a linked list for this -- for example, the
fba395ee 95 memory card driver uses an array of struct pcmcia_device pointers, where minor
1da177e4
LT
96 device numbers are used to derive the corresponding array index.
97*/
98
1da177e4 99/*
1da177e4
LT
100 A driver needs to provide a dev_node_t structure for each device
101 on a card. In some cases, there is only one device per card (for
102 example, ethernet cards, modems). In other cases, there may be
103 many actual or logical devices (SCSI adapters, memory cards with
104 multiple partitions). The dev_node_t structures need to be kept
fba395ee 105 in a linked list starting at the 'dev' field of a struct pcmcia_device
1da177e4
LT
106 structure. We allocate them in the card's private data structure,
107 because they generally shouldn't be allocated dynamically.
108 In this case, we also provide a flag to indicate if a device is
109 "stopped" due to a power management event, or card ejection. The
110 device IO routines can use a flag like this to throttle IO to a
111 card that is not ready to accept it.
112*/
113
114typedef struct local_info_t {
fd238232 115 struct pcmcia_device *p_dev;
1da177e4
LT
116 dev_node_t node;
117 int busy;
118 int cardnr;
119} local_info_t;
120
121/*======================================================================
122
123 teles_attach() creates an "instance" of the driver, allocatingx
124 local data structures for one device. The device is registered
125 with Card Services.
126
127 The dev_link structure is initialized, but we don't actually
128 configure the card at this point -- we wait until we receive a
129 card insertion event.
130
131======================================================================*/
132
15b99ac1 133static int teles_probe(struct pcmcia_device *link)
1da177e4 134{
1da177e4 135 local_info_t *local;
1da177e4
LT
136
137 DEBUG(0, "teles_attach()\n");
138
139 /* Allocate space for private device-specific data */
140 local = kmalloc(sizeof(local_info_t), GFP_KERNEL);
f8cfa618 141 if (!local) return -ENOMEM;
1da177e4
LT
142 memset(local, 0, sizeof(local_info_t));
143 local->cardnr = -1;
fd238232 144
fba395ee 145 local->p_dev = link;
fd238232 146 link->priv = local;
1da177e4
LT
147
148 /* Interrupt setup */
149 link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED;
150 link->irq.IRQInfo1 = IRQ_LEVEL_ID|IRQ_SHARE_ID;
151 link->irq.Handler = NULL;
152
153 /*
154 General socket configuration defaults can go here. In this
155 client, we assume very little, and rely on the CIS for almost
156 everything. In most clients, many details (i.e., number, sizes,
157 and attributes of IO windows) are fixed by the nature of the
158 device, and can be hard-wired here.
159 */
160 link->io.NumPorts1 = 96;
161 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
162 link->io.IOAddrLines = 5;
163
164 link->conf.Attributes = CONF_ENABLE_IRQ;
1da177e4
LT
165 link->conf.IntType = INT_MEMORY_AND_IO;
166
15b99ac1 167 return teles_cs_config(link);
1da177e4
LT
168} /* teles_attach */
169
170/*======================================================================
171
172 This deletes a driver "instance". The device is de-registered
173 with Card Services. If it has been released, all local data
174 structures are freed. Otherwise, the structures will be freed
175 when the device is released.
176
177======================================================================*/
178
fba395ee 179static void teles_detach(struct pcmcia_device *link)
1da177e4 180{
e2d40963 181 local_info_t *info = link->priv;
1da177e4 182
e2d40963 183 DEBUG(0, "teles_detach(0x%p)\n", link);
1da177e4 184
e2d40963
DB
185 info->busy = 1;
186 teles_cs_release(link);
1da177e4 187
e2d40963 188 kfree(info);
1da177e4
LT
189} /* teles_detach */
190
191/*======================================================================
192
193 teles_cs_config() is scheduled to run after a CARD_INSERTION event
194 is received, to configure the PCMCIA socket, and to make the
195 device available to the system.
196
197======================================================================*/
fba395ee 198static int get_tuple(struct pcmcia_device *handle, tuple_t *tuple,
1da177e4
LT
199 cisparse_t *parse)
200{
201 int i = pcmcia_get_tuple_data(handle, tuple);
202 if (i != CS_SUCCESS) return i;
203 return pcmcia_parse_tuple(handle, tuple, parse);
204}
205
fba395ee 206static int first_tuple(struct pcmcia_device *handle, tuple_t *tuple,
1da177e4
LT
207 cisparse_t *parse)
208{
209 int i = pcmcia_get_first_tuple(handle, tuple);
210 if (i != CS_SUCCESS) return i;
211 return get_tuple(handle, tuple, parse);
212}
213
fba395ee 214static int next_tuple(struct pcmcia_device *handle, tuple_t *tuple,
1da177e4
LT
215 cisparse_t *parse)
216{
217 int i = pcmcia_get_next_tuple(handle, tuple);
218 if (i != CS_SUCCESS) return i;
219 return get_tuple(handle, tuple, parse);
220}
221
15b99ac1 222static int teles_cs_config(struct pcmcia_device *link)
1da177e4 223{
1da177e4
LT
224 tuple_t tuple;
225 cisparse_t parse;
226 local_info_t *dev;
227 int i, j, last_fn;
228 u_short buf[128];
229 cistpl_cftable_entry_t *cf = &parse.cftable_entry;
230 IsdnCard_t icard;
231
232 DEBUG(0, "teles_config(0x%p)\n", link);
1da177e4
LT
233 dev = link->priv;
234
235 /*
236 This reads the card's CONFIG tuple to find its configuration
237 registers.
238 */
239 tuple.DesiredTuple = CISTPL_CONFIG;
240 tuple.TupleData = (cisdata_t *)buf;
241 tuple.TupleDataMax = 255;
242 tuple.TupleOffset = 0;
243 tuple.Attributes = 0;
fba395ee 244 i = first_tuple(link, &tuple, &parse);
1da177e4
LT
245 if (i != CS_SUCCESS) {
246 last_fn = ParseTuple;
247 goto cs_failed;
248 }
249 link->conf.ConfigBase = parse.config.base;
250 link->conf.Present = parse.config.rmask[0];
251
1da177e4
LT
252 tuple.TupleData = (cisdata_t *)buf;
253 tuple.TupleOffset = 0; tuple.TupleDataMax = 255;
254 tuple.Attributes = 0;
255 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
fba395ee 256 i = first_tuple(link, &tuple, &parse);
1da177e4
LT
257 while (i == CS_SUCCESS) {
258 if ( (cf->io.nwin > 0) && cf->io.win[0].base) {
259 printk(KERN_INFO "(teles_cs: looks like the 96 model)\n");
260 link->conf.ConfigIndex = cf->index;
261 link->io.BasePort1 = cf->io.win[0].base;
fba395ee 262 i = pcmcia_request_io(link, &link->io);
1da177e4
LT
263 if (i == CS_SUCCESS) break;
264 } else {
265 printk(KERN_INFO "(teles_cs: looks like the 97 model)\n");
266 link->conf.ConfigIndex = cf->index;
267 for (i = 0, j = 0x2f0; j > 0x100; j -= 0x10) {
268 link->io.BasePort1 = j;
fba395ee 269 i = pcmcia_request_io(link, &link->io);
1da177e4
LT
270 if (i == CS_SUCCESS) break;
271 }
272 break;
273 }
fba395ee 274 i = next_tuple(link, &tuple, &parse);
1da177e4
LT
275 }
276
277 if (i != CS_SUCCESS) {
278 last_fn = RequestIO;
279 goto cs_failed;
280 }
281
fba395ee 282 i = pcmcia_request_irq(link, &link->irq);
1da177e4
LT
283 if (i != CS_SUCCESS) {
284 link->irq.AssignedIRQ = 0;
285 last_fn = RequestIRQ;
286 goto cs_failed;
287 }
288
fba395ee 289 i = pcmcia_request_configuration(link, &link->conf);
1da177e4
LT
290 if (i != CS_SUCCESS) {
291 last_fn = RequestConfiguration;
292 goto cs_failed;
293 }
294
295 /* At this point, the dev_node_t structure(s) should be
296 initialized and arranged in a linked list at link->dev. *//* */
297 sprintf(dev->node.dev_name, "teles");
298 dev->node.major = dev->node.minor = 0x0;
299
fd238232 300 link->dev_node = &dev->node;
1da177e4
LT
301
302 /* Finally, report what we've done */
70294b46
DB
303 printk(KERN_INFO "%s: index 0x%02x:",
304 dev->node.dev_name, link->conf.ConfigIndex);
1da177e4
LT
305 if (link->conf.Attributes & CONF_ENABLE_IRQ)
306 printk(", irq %d", link->irq.AssignedIRQ);
307 if (link->io.NumPorts1)
308 printk(", io 0x%04x-0x%04x", link->io.BasePort1,
309 link->io.BasePort1+link->io.NumPorts1-1);
310 if (link->io.NumPorts2)
311 printk(" & 0x%04x-0x%04x", link->io.BasePort2,
312 link->io.BasePort2+link->io.NumPorts2-1);
313 printk("\n");
314
1da177e4
LT
315 icard.para[0] = link->irq.AssignedIRQ;
316 icard.para[1] = link->io.BasePort1;
317 icard.protocol = protocol;
318 icard.typ = ISDN_CTYPE_TELESPCMCIA;
319
320 i = hisax_init_pcmcia(link, &(((local_info_t*)link->priv)->busy), &icard);
321 if (i < 0) {
322 printk(KERN_ERR "teles_cs: failed to initialize Teles PCMCIA %d at i/o %#x\n",
323 i, link->io.BasePort1);
324 teles_cs_release(link);
15b99ac1
DB
325 return -ENODEV;
326 }
327
328 ((local_info_t*)link->priv)->cardnr = i;
329 return 0;
1da177e4 330
1da177e4 331cs_failed:
fba395ee 332 cs_error(link, last_fn, i);
1da177e4 333 teles_cs_release(link);
15b99ac1 334 return -ENODEV;
1da177e4
LT
335} /* teles_cs_config */
336
337/*======================================================================
338
339 After a card is removed, teles_cs_release() will unregister the net
340 device, and release the PCMCIA configuration. If the device is
341 still open, this will be postponed until it is closed.
342
343======================================================================*/
344
fba395ee 345static void teles_cs_release(struct pcmcia_device *link)
1da177e4
LT
346{
347 local_info_t *local = link->priv;
348
349 DEBUG(0, "teles_cs_release(0x%p)\n", link);
350
351 if (local) {
352 if (local->cardnr >= 0) {
353 /* no unregister function with hisax */
354 HiSax_closecard(local->cardnr);
355 }
356 }
5f2a71fc 357
fba395ee 358 pcmcia_disable_device(link);
1da177e4
LT
359} /* teles_cs_release */
360
fba395ee 361static int teles_suspend(struct pcmcia_device *link)
98e4c28b 362{
98e4c28b
DB
363 local_info_t *dev = link->priv;
364
98e4c28b 365 dev->busy = 1;
98e4c28b
DB
366
367 return 0;
368}
369
fba395ee 370static int teles_resume(struct pcmcia_device *link)
98e4c28b 371{
98e4c28b
DB
372 local_info_t *dev = link->priv;
373
98e4c28b
DB
374 dev->busy = 0;
375
376 return 0;
377}
378
1da177e4 379
0a10d73d
DB
380static struct pcmcia_device_id teles_ids[] = {
381 PCMCIA_DEVICE_PROD_ID12("TELES", "S0/PC", 0x67b50eae, 0xe9e70119),
382 PCMCIA_DEVICE_NULL,
383};
384MODULE_DEVICE_TABLE(pcmcia, teles_ids);
385
1da177e4
LT
386static struct pcmcia_driver teles_cs_driver = {
387 .owner = THIS_MODULE,
388 .drv = {
389 .name = "teles_cs",
390 },
15b99ac1 391 .probe = teles_probe,
cc3b4866 392 .remove = teles_detach,
0a10d73d 393 .id_table = teles_ids,
98e4c28b
DB
394 .suspend = teles_suspend,
395 .resume = teles_resume,
1da177e4
LT
396};
397
398static int __init init_teles_cs(void)
399{
400 return pcmcia_register_driver(&teles_cs_driver);
401}
402
403static void __exit exit_teles_cs(void)
404{
405 pcmcia_unregister_driver(&teles_cs_driver);
1da177e4
LT
406}
407
408module_init(init_teles_cs);
409module_exit(exit_teles_cs);
This page took 0.135125 seconds and 5 git commands to generate.