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 = kmalloc(sizeof(local_info_t), GFP_KERNEL);
159 if (!local) return -ENOMEM;
160 memset(local, 0, sizeof(local_info_t));
166 /* Interrupt setup */
167 link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED;
168 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
169 link->irq.Handler = NULL;
172 General socket configuration defaults can go here. In this
173 client, we assume very little, and rely on the CIS for almost
174 everything. In most clients, many details (i.e., number, sizes,
175 and attributes of IO windows) are fixed by the nature of the
176 device, and can be hard-wired here.
181 /* The io structure describes IO port mapping */
182 link->io.NumPorts1 = 8;
183 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
184 link->io.IOAddrLines = 3;
186 link->conf.Attributes = 0;
187 link->conf.IntType = INT_MEMORY_AND_IO;
189 return sedlbauer_config(link);
190 } /* sedlbauer_attach */
192 /*======================================================================
194 This deletes a driver "instance". The device is de-registered
195 with Card Services. If it has been released, all local data
196 structures are freed. Otherwise, the structures will be freed
197 when the device is released.
199 ======================================================================*/
201 static void sedlbauer_detach(struct pcmcia_device *link)
203 DEBUG(0, "sedlbauer_detach(0x%p)\n", link);
205 ((local_info_t *)link->priv)->stop = 1;
206 sedlbauer_release(link);
208 /* This points to the parent local_info_t struct */
210 } /* sedlbauer_detach */
212 /*======================================================================
214 sedlbauer_config() is scheduled to run after a CARD_INSERTION event
215 is received, to configure the PCMCIA socket, and to make the
216 device available to the system.
218 ======================================================================*/
219 #define CS_CHECK(fn, ret) \
220 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
222 static int sedlbauer_config(struct pcmcia_device *link)
224 local_info_t *dev = link->priv;
227 int last_fn, last_ret;
234 DEBUG(0, "sedlbauer_config(0x%p)\n", link);
236 tuple.Attributes = 0;
237 tuple.TupleData = buf;
238 tuple.TupleDataMax = sizeof(buf);
239 tuple.TupleOffset = 0;
241 CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(link, &conf));
244 In this loop, we scan the CIS for configuration table entries,
245 each of which describes a valid card configuration, including
246 voltage, IO window, memory window, and interrupt settings.
248 We make no assumptions about the card to be configured: we use
249 just the information available in the CIS. In an ideal world,
250 this would work for any PCMCIA card, but it requires a complete
251 and accurate CIS. In practice, a driver usually "knows" most of
252 these things without consulting the CIS, and most client drivers
253 will only use the CIS to fill in implementation-defined details.
255 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
256 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
258 cistpl_cftable_entry_t dflt = { 0 };
259 cistpl_cftable_entry_t *cfg = &(parse.cftable_entry);
260 if (pcmcia_get_tuple_data(link, &tuple) != 0 ||
261 pcmcia_parse_tuple(link, &tuple, &parse) != 0)
264 if (cfg->flags & CISTPL_CFTABLE_DEFAULT) dflt = *cfg;
265 if (cfg->index == 0) goto next_entry;
266 link->conf.ConfigIndex = cfg->index;
268 /* Does this card need audio output? */
269 if (cfg->flags & CISTPL_CFTABLE_AUDIO) {
270 link->conf.Attributes |= CONF_ENABLE_SPKR;
271 link->conf.Status = CCSR_AUDIO_ENA;
274 /* Use power settings for Vcc and Vpp if present */
275 /* Note that the CIS values need to be rescaled */
276 if (cfg->vcc.present & (1<<CISTPL_POWER_VNOM)) {
277 if (conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM]/10000)
279 } else if (dflt.vcc.present & (1<<CISTPL_POWER_VNOM)) {
280 if (conf.Vcc != dflt.vcc.param[CISTPL_POWER_VNOM]/10000)
284 if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM))
286 cfg->vpp1.param[CISTPL_POWER_VNOM]/10000;
287 else if (dflt.vpp1.present & (1<<CISTPL_POWER_VNOM))
289 dflt.vpp1.param[CISTPL_POWER_VNOM]/10000;
291 /* Do we need to allocate an interrupt? */
292 if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1)
293 link->conf.Attributes |= CONF_ENABLE_IRQ;
295 /* IO window settings */
296 link->io.NumPorts1 = link->io.NumPorts2 = 0;
297 if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
298 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
299 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
300 if (!(io->flags & CISTPL_IO_8BIT))
301 link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
302 if (!(io->flags & CISTPL_IO_16BIT))
303 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
304 /* new in dummy.cs 2001/01/28 MN
305 link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
307 link->io.BasePort1 = io->win[0].base;
308 link->io.NumPorts1 = io->win[0].len;
310 link->io.Attributes2 = link->io.Attributes1;
311 link->io.BasePort2 = io->win[1].base;
312 link->io.NumPorts2 = io->win[1].len;
314 /* This reserves IO space but doesn't actually enable it */
315 if (pcmcia_request_io(link, &link->io) != 0)
320 Now set up a common memory window, if needed. There is room
321 in the struct pcmcia_device structure for one memory window handle,
322 but if the base addresses need to be saved, or if multiple
323 windows are needed, the info should go in the private data
324 structure for this device.
326 Note that the memory window base is a physical address, and
327 needs to be mapped to virtual space with ioremap() before it
330 if ((cfg->mem.nwin > 0) || (dflt.mem.nwin > 0)) {
332 (cfg->mem.nwin) ? &cfg->mem : &dflt.mem;
333 req.Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM;
334 req.Attributes |= WIN_ENABLE;
335 req.Base = mem->win[0].host_addr;
336 req.Size = mem->win[0].len;
337 /* new in dummy.cs 2001/01/28 MN
338 if (req.Size < 0x1000)
342 if (pcmcia_request_window(&link, &req, &link->win) != 0)
344 map.Page = 0; map.CardOffset = mem->win[0].card_addr;
345 if (pcmcia_map_mem_page(link->win, &map) != 0)
348 /* If we got this far, we're cool! */
352 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(link, &tuple));
356 Allocate an interrupt line. Note that this does not assign a
357 handler to the interrupt, unless the 'Handler' member of the
358 irq structure is initialized.
360 if (link->conf.Attributes & CONF_ENABLE_IRQ)
361 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
364 This actually configures the PCMCIA socket -- setting up
365 the I/O windows and the interrupt mapping, and putting the
366 card and host interface into "Memory and IO" mode.
368 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
371 At this point, the dev_node_t structure(s) need to be
372 initialized and arranged in a linked list at link->dev.
374 sprintf(dev->node.dev_name, "sedlbauer");
375 dev->node.major = dev->node.minor = 0;
376 link->dev_node = &dev->node;
378 /* Finally, report what we've done */
379 printk(KERN_INFO "%s: index 0x%02x:",
380 dev->node.dev_name, link->conf.ConfigIndex);
382 printk(", Vpp %d.%d", link->conf.Vpp/10, link->conf.Vpp%10);
383 if (link->conf.Attributes & CONF_ENABLE_IRQ)
384 printk(", irq %d", link->irq.AssignedIRQ);
385 if (link->io.NumPorts1)
386 printk(", io 0x%04x-0x%04x", link->io.BasePort1,
387 link->io.BasePort1+link->io.NumPorts1-1);
388 if (link->io.NumPorts2)
389 printk(" & 0x%04x-0x%04x", link->io.BasePort2,
390 link->io.BasePort2+link->io.NumPorts2-1);
392 printk(", mem 0x%06lx-0x%06lx", req.Base,
393 req.Base+req.Size-1);
396 icard.para[0] = link->irq.AssignedIRQ;
397 icard.para[1] = link->io.BasePort1;
398 icard.protocol = protocol;
399 icard.typ = ISDN_CTYPE_SEDLBAUER_PCMCIA;
401 last_ret = hisax_init_pcmcia(link, &(((local_info_t*)link->priv)->stop), &icard);
403 printk(KERN_ERR "sedlbauer_cs: failed to initialize SEDLBAUER PCMCIA %d at i/o %#x\n",
404 last_ret, link->io.BasePort1);
405 sedlbauer_release(link);
408 ((local_info_t*)link->priv)->cardnr = last_ret;
413 cs_error(link, last_fn, last_ret);
414 sedlbauer_release(link);
417 } /* sedlbauer_config */
419 /*======================================================================
421 After a card is removed, sedlbauer_release() will unregister the
422 device, and release the PCMCIA configuration. If the device is
423 still open, this will be postponed until it is closed.
425 ======================================================================*/
427 static void sedlbauer_release(struct pcmcia_device *link)
429 local_info_t *local = link->priv;
430 DEBUG(0, "sedlbauer_release(0x%p)\n", link);
433 if (local->cardnr >= 0) {
434 /* no unregister function with hisax */
435 HiSax_closecard(local->cardnr);
439 pcmcia_disable_device(link);
440 } /* sedlbauer_release */
442 static int sedlbauer_suspend(struct pcmcia_device *link)
444 local_info_t *dev = link->priv;
451 static int sedlbauer_resume(struct pcmcia_device *link)
453 local_info_t *dev = link->priv;
461 static struct pcmcia_device_id sedlbauer_ids[] = {
462 PCMCIA_DEVICE_PROD_ID123("SEDLBAUER", "speed star II", "V 3.1", 0x81fb79f5, 0xf3612e1d, 0x6b95c78a),
463 PCMCIA_DEVICE_PROD_ID123("SEDLBAUER", "ISDN-Adapter", "4D67", 0x81fb79f5, 0xe4e9bc12, 0x397b7e90),
464 PCMCIA_DEVICE_PROD_ID123("SEDLBAUER", "ISDN-Adapter", "4D98", 0x81fb79f5, 0xe4e9bc12, 0x2e5c7fce),
465 PCMCIA_DEVICE_PROD_ID123("SEDLBAUER", "ISDN-Adapter", " (C) 93-94 VK", 0x81fb79f5, 0xe4e9bc12, 0x8db143fe),
466 PCMCIA_DEVICE_PROD_ID123("SEDLBAUER", "ISDN-Adapter", " (c) 93-95 VK", 0x81fb79f5, 0xe4e9bc12, 0xb391ab4c),
467 PCMCIA_DEVICE_PROD_ID12("HST High Soft Tech GmbH", "Saphir II B", 0xd79e0b84, 0x21d083ae),
468 /* PCMCIA_DEVICE_PROD_ID1234("SEDLBAUER", 0x81fb79f5), */ /* too generic*/
471 MODULE_DEVICE_TABLE(pcmcia, sedlbauer_ids);
473 static struct pcmcia_driver sedlbauer_driver = {
474 .owner = THIS_MODULE,
476 .name = "sedlbauer_cs",
478 .probe = sedlbauer_probe,
479 .remove = sedlbauer_detach,
480 .id_table = sedlbauer_ids,
481 .suspend = sedlbauer_suspend,
482 .resume = sedlbauer_resume,
485 static int __init init_sedlbauer_cs(void)
487 return pcmcia_register_driver(&sedlbauer_driver);
490 static void __exit exit_sedlbauer_cs(void)
492 pcmcia_unregister_driver(&sedlbauer_driver);
495 module_init(init_sedlbauer_cs);
496 module_exit(exit_sedlbauer_cs);