1 /*======================================================================
3 A Sedlbauer PCMCIA client driver
5 This driver is for the Sedlbauer Speed Star and Speed Star II,
6 which are ISDN PCMCIA Cards.
8 The contents of this file are subject to the Mozilla Public
9 License Version 1.1 (the "License"); you may not use this file
10 except in compliance with the License. You may obtain a copy of
11 the License at http://www.mozilla.org/MPL/
13 Software distributed under the License is distributed on an "AS
14 IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
15 implied. See the License for the specific language governing
16 rights and limitations under the License.
18 The initial developer of the original code is David A. Hinds
19 <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
20 are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
22 Modifications from dummy_cs.c are Copyright (C) 1999-2001 Marcus Niemann
23 <maniemann@users.sourceforge.net>. All Rights Reserved.
25 Alternatively, the contents of this file may be used under the
26 terms of the GNU General Public License version 2 (the "GPL"), in
27 which case the provisions of the GPL are applicable instead of the
28 above. If you wish to allow the use of your version of this file
29 only under the terms of the GPL and not to allow others to use
30 your version of this file under the MPL, indicate your decision
31 by deleting the provisions above and replace them with the notice
32 and other provisions required by the GPL. If you do not delete
33 the provisions above, a recipient may use your version of this
34 file under either the MPL or the GPL.
36 ======================================================================*/
38 #include <linux/kernel.h>
39 #include <linux/module.h>
40 #include <linux/init.h>
41 #include <linux/sched.h>
42 #include <linux/ptrace.h>
43 #include <linux/slab.h>
44 #include <linux/string.h>
45 #include <linux/timer.h>
46 #include <linux/ioport.h>
48 #include <asm/system.h>
50 #include <pcmcia/cs_types.h>
51 #include <pcmcia/cs.h>
52 #include <pcmcia/cistpl.h>
53 #include <pcmcia/cisreg.h>
54 #include <pcmcia/ds.h>
55 #include "hisax_cfg.h"
57 MODULE_DESCRIPTION("ISDN4Linux: PCMCIA client driver for Sedlbauer cards");
58 MODULE_AUTHOR("Marcus Niemann");
59 MODULE_LICENSE("Dual MPL/GPL");
62 All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If
63 you do not define PCMCIA_DEBUG at all, all the debug code will be
64 left out. If you compile with PCMCIA_DEBUG=0, the debug code will
65 be present but disabled -- but it can then be enabled for specific
66 modules at load time with a 'pc_debug=#' option to insmod.
70 static int pc_debug = PCMCIA_DEBUG;
71 module_param(pc_debug, int, 0);
72 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args);
73 static char *version =
74 "sedlbauer_cs.c 1.1a 2001/01/28 15:04:04 (M.Niemann)";
76 #define DEBUG(n, args...)
80 /*====================================================================*/
82 /* Parameters that can be set with 'insmod' */
84 static int protocol = 2; /* EURO-ISDN Default */
85 module_param(protocol, int, 0);
87 /*====================================================================*/
90 The event() function is this driver's Card Services event handler.
91 It will be called by Card Services when an appropriate card status
92 event is received. The config() and release() entry points are
93 used to configure or release a socket, in response to card
94 insertion and ejection events. They are invoked from the sedlbauer
98 static int sedlbauer_config(struct pcmcia_device *link);
99 static void sedlbauer_release(struct pcmcia_device *link);
102 The attach() and detach() entry points are used to create and destroy
103 "instances" of the driver, where each instance represents everything
104 needed to manage one actual PCMCIA card.
107 static void sedlbauer_detach(struct pcmcia_device *p_dev);
110 You'll also need to prototype all the functions that will actually
111 be used to talk to your device. See 'memory_cs' for a good example
112 of a fully self-sufficient driver; the other drivers rely more or
113 less on other parts of the kernel.
117 A driver needs to provide a dev_node_t structure for each device
118 on a card. In some cases, there is only one device per card (for
119 example, ethernet cards, modems). In other cases, there may be
120 many actual or logical devices (SCSI adapters, memory cards with
121 multiple partitions). The dev_node_t structures need to be kept
122 in a linked list starting at the 'dev' field of a struct pcmcia_device
123 structure. We allocate them in the card's private data structure,
124 because they generally shouldn't be allocated dynamically.
126 In this case, we also provide a flag to indicate if a device is
127 "stopped" due to a power management event, or card ejection. The
128 device IO routines can use a flag like this to throttle IO to a
129 card that is not ready to accept it.
132 typedef struct local_info_t {
133 struct pcmcia_device *p_dev;
139 /*======================================================================
141 sedlbauer_attach() creates an "instance" of the driver, allocating
142 local data structures for one device. The device is registered
145 The dev_link structure is initialized, but we don't actually
146 configure the card at this point -- we wait until we receive a
147 card insertion event.
149 ======================================================================*/
151 static int sedlbauer_probe(struct pcmcia_device *link)
155 DEBUG(0, "sedlbauer_attach()\n");
157 /* Allocate space for private device-specific data */
158 local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
159 if (!local) return -ENOMEM;
165 /* Interrupt setup */
166 link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED;
167 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
168 link->irq.Handler = NULL;
171 General socket configuration defaults can go here. In this
172 client, we assume very little, and rely on the CIS for almost
173 everything. In most clients, many details (i.e., number, sizes,
174 and attributes of IO windows) are fixed by the nature of the
175 device, and can be hard-wired here.
180 /* The io structure describes IO port mapping */
181 link->io.NumPorts1 = 8;
182 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
183 link->io.IOAddrLines = 3;
185 link->conf.Attributes = 0;
186 link->conf.IntType = INT_MEMORY_AND_IO;
188 return sedlbauer_config(link);
189 } /* sedlbauer_attach */
191 /*======================================================================
193 This deletes a driver "instance". The device is de-registered
194 with Card Services. If it has been released, all local data
195 structures are freed. Otherwise, the structures will be freed
196 when the device is released.
198 ======================================================================*/
200 static void sedlbauer_detach(struct pcmcia_device *link)
202 DEBUG(0, "sedlbauer_detach(0x%p)\n", link);
204 ((local_info_t *)link->priv)->stop = 1;
205 sedlbauer_release(link);
207 /* This points to the parent local_info_t struct */
209 } /* sedlbauer_detach */
211 /*======================================================================
213 sedlbauer_config() is scheduled to run after a CARD_INSERTION event
214 is received, to configure the PCMCIA socket, and to make the
215 device available to the system.
217 ======================================================================*/
218 #define CS_CHECK(fn, ret) \
219 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
221 static int sedlbauer_config(struct pcmcia_device *link)
223 local_info_t *dev = link->priv;
226 int last_fn, last_ret;
233 DEBUG(0, "sedlbauer_config(0x%p)\n", link);
235 tuple.Attributes = 0;
236 tuple.TupleData = buf;
237 tuple.TupleDataMax = sizeof(buf);
238 tuple.TupleOffset = 0;
240 CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(link, &conf));
243 In this loop, we scan the CIS for configuration table entries,
244 each of which describes a valid card configuration, including
245 voltage, IO window, memory window, and interrupt settings.
247 We make no assumptions about the card to be configured: we use
248 just the information available in the CIS. In an ideal world,
249 this would work for any PCMCIA card, but it requires a complete
250 and accurate CIS. In practice, a driver usually "knows" most of
251 these things without consulting the CIS, and most client drivers
252 will only use the CIS to fill in implementation-defined details.
254 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
255 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
257 cistpl_cftable_entry_t dflt = { 0 };
258 cistpl_cftable_entry_t *cfg = &(parse.cftable_entry);
259 if (pcmcia_get_tuple_data(link, &tuple) != 0 ||
260 pcmcia_parse_tuple(link, &tuple, &parse) != 0)
263 if (cfg->flags & CISTPL_CFTABLE_DEFAULT) dflt = *cfg;
264 if (cfg->index == 0) goto next_entry;
265 link->conf.ConfigIndex = cfg->index;
267 /* Does this card need audio output? */
268 if (cfg->flags & CISTPL_CFTABLE_AUDIO) {
269 link->conf.Attributes |= CONF_ENABLE_SPKR;
270 link->conf.Status = CCSR_AUDIO_ENA;
273 /* Use power settings for Vcc and Vpp if present */
274 /* Note that the CIS values need to be rescaled */
275 if (cfg->vcc.present & (1<<CISTPL_POWER_VNOM)) {
276 if (conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM]/10000)
278 } else if (dflt.vcc.present & (1<<CISTPL_POWER_VNOM)) {
279 if (conf.Vcc != dflt.vcc.param[CISTPL_POWER_VNOM]/10000)
283 if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM))
285 cfg->vpp1.param[CISTPL_POWER_VNOM]/10000;
286 else if (dflt.vpp1.present & (1<<CISTPL_POWER_VNOM))
288 dflt.vpp1.param[CISTPL_POWER_VNOM]/10000;
290 /* Do we need to allocate an interrupt? */
291 if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1)
292 link->conf.Attributes |= CONF_ENABLE_IRQ;
294 /* IO window settings */
295 link->io.NumPorts1 = link->io.NumPorts2 = 0;
296 if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
297 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
298 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
299 if (!(io->flags & CISTPL_IO_8BIT))
300 link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
301 if (!(io->flags & CISTPL_IO_16BIT))
302 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
303 /* new in dummy.cs 2001/01/28 MN
304 link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
306 link->io.BasePort1 = io->win[0].base;
307 link->io.NumPorts1 = io->win[0].len;
309 link->io.Attributes2 = link->io.Attributes1;
310 link->io.BasePort2 = io->win[1].base;
311 link->io.NumPorts2 = io->win[1].len;
313 /* This reserves IO space but doesn't actually enable it */
314 if (pcmcia_request_io(link, &link->io) != 0)
319 Now set up a common memory window, if needed. There is room
320 in the struct pcmcia_device structure for one memory window handle,
321 but if the base addresses need to be saved, or if multiple
322 windows are needed, the info should go in the private data
323 structure for this device.
325 Note that the memory window base is a physical address, and
326 needs to be mapped to virtual space with ioremap() before it
329 if ((cfg->mem.nwin > 0) || (dflt.mem.nwin > 0)) {
331 (cfg->mem.nwin) ? &cfg->mem : &dflt.mem;
332 req.Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM;
333 req.Attributes |= WIN_ENABLE;
334 req.Base = mem->win[0].host_addr;
335 req.Size = mem->win[0].len;
336 /* new in dummy.cs 2001/01/28 MN
337 if (req.Size < 0x1000)
341 if (pcmcia_request_window(&link, &req, &link->win) != 0)
343 map.Page = 0; map.CardOffset = mem->win[0].card_addr;
344 if (pcmcia_map_mem_page(link->win, &map) != 0)
347 /* If we got this far, we're cool! */
351 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(link, &tuple));
355 Allocate an interrupt line. Note that this does not assign a
356 handler to the interrupt, unless the 'Handler' member of the
357 irq structure is initialized.
359 if (link->conf.Attributes & CONF_ENABLE_IRQ)
360 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
363 This actually configures the PCMCIA socket -- setting up
364 the I/O windows and the interrupt mapping, and putting the
365 card and host interface into "Memory and IO" mode.
367 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
370 At this point, the dev_node_t structure(s) need to be
371 initialized and arranged in a linked list at link->dev.
373 sprintf(dev->node.dev_name, "sedlbauer");
374 dev->node.major = dev->node.minor = 0;
375 link->dev_node = &dev->node;
377 /* Finally, report what we've done */
378 printk(KERN_INFO "%s: index 0x%02x:",
379 dev->node.dev_name, link->conf.ConfigIndex);
381 printk(", Vpp %d.%d", link->conf.Vpp/10, link->conf.Vpp%10);
382 if (link->conf.Attributes & CONF_ENABLE_IRQ)
383 printk(", irq %d", link->irq.AssignedIRQ);
384 if (link->io.NumPorts1)
385 printk(", io 0x%04x-0x%04x", link->io.BasePort1,
386 link->io.BasePort1+link->io.NumPorts1-1);
387 if (link->io.NumPorts2)
388 printk(" & 0x%04x-0x%04x", link->io.BasePort2,
389 link->io.BasePort2+link->io.NumPorts2-1);
391 printk(", mem 0x%06lx-0x%06lx", req.Base,
392 req.Base+req.Size-1);
395 icard.para[0] = link->irq.AssignedIRQ;
396 icard.para[1] = link->io.BasePort1;
397 icard.protocol = protocol;
398 icard.typ = ISDN_CTYPE_SEDLBAUER_PCMCIA;
400 last_ret = hisax_init_pcmcia(link, &(((local_info_t*)link->priv)->stop), &icard);
402 printk(KERN_ERR "sedlbauer_cs: failed to initialize SEDLBAUER PCMCIA %d at i/o %#x\n",
403 last_ret, link->io.BasePort1);
404 sedlbauer_release(link);
407 ((local_info_t*)link->priv)->cardnr = last_ret;
412 cs_error(link, last_fn, last_ret);
413 sedlbauer_release(link);
416 } /* sedlbauer_config */
418 /*======================================================================
420 After a card is removed, sedlbauer_release() will unregister the
421 device, and release the PCMCIA configuration. If the device is
422 still open, this will be postponed until it is closed.
424 ======================================================================*/
426 static void sedlbauer_release(struct pcmcia_device *link)
428 local_info_t *local = link->priv;
429 DEBUG(0, "sedlbauer_release(0x%p)\n", link);
432 if (local->cardnr >= 0) {
433 /* no unregister function with hisax */
434 HiSax_closecard(local->cardnr);
438 pcmcia_disable_device(link);
439 } /* sedlbauer_release */
441 static int sedlbauer_suspend(struct pcmcia_device *link)
443 local_info_t *dev = link->priv;
450 static int sedlbauer_resume(struct pcmcia_device *link)
452 local_info_t *dev = link->priv;
460 static struct pcmcia_device_id sedlbauer_ids[] = {
461 PCMCIA_DEVICE_PROD_ID123("SEDLBAUER", "speed star II", "V 3.1", 0x81fb79f5, 0xf3612e1d, 0x6b95c78a),
462 PCMCIA_DEVICE_PROD_ID123("SEDLBAUER", "ISDN-Adapter", "4D67", 0x81fb79f5, 0xe4e9bc12, 0x397b7e90),
463 PCMCIA_DEVICE_PROD_ID123("SEDLBAUER", "ISDN-Adapter", "4D98", 0x81fb79f5, 0xe4e9bc12, 0x2e5c7fce),
464 PCMCIA_DEVICE_PROD_ID123("SEDLBAUER", "ISDN-Adapter", " (C) 93-94 VK", 0x81fb79f5, 0xe4e9bc12, 0x8db143fe),
465 PCMCIA_DEVICE_PROD_ID123("SEDLBAUER", "ISDN-Adapter", " (c) 93-95 VK", 0x81fb79f5, 0xe4e9bc12, 0xb391ab4c),
466 PCMCIA_DEVICE_PROD_ID12("HST High Soft Tech GmbH", "Saphir II B", 0xd79e0b84, 0x21d083ae),
467 /* PCMCIA_DEVICE_PROD_ID1234("SEDLBAUER", 0x81fb79f5), */ /* too generic*/
470 MODULE_DEVICE_TABLE(pcmcia, sedlbauer_ids);
472 static struct pcmcia_driver sedlbauer_driver = {
473 .owner = THIS_MODULE,
475 .name = "sedlbauer_cs",
477 .probe = sedlbauer_probe,
478 .remove = sedlbauer_detach,
479 .id_table = sedlbauer_ids,
480 .suspend = sedlbauer_suspend,
481 .resume = sedlbauer_resume,
484 static int __init init_sedlbauer_cs(void)
486 return pcmcia_register_driver(&sedlbauer_driver);
489 static void __exit exit_sedlbauer_cs(void)
491 pcmcia_unregister_driver(&sedlbauer_driver);
494 module_init(init_sedlbauer_cs);
495 module_exit(exit_sedlbauer_cs);