1 /*** -*- linux-c -*- **********************************************************
3 Driver for Atmel at76c502 at76c504 and at76c506 wireless cards.
5 Copyright 2000-2001 ATMEL Corporation.
6 Copyright 2003 Simon Kelley.
8 This code was developed from version 2.1.1 of the Atmel drivers,
9 released by Atmel corp. under the GPL in December 2002. It also
10 includes code from the Linux aironet drivers (C) Benjamin Reed,
11 and the Linux PCMCIA package, (C) David Hinds.
13 For all queries about this code, please contact the current author,
14 Simon Kelley <simon@thekelleys.org.uk> and not Atmel Corporation.
16 This program is free software; you can redistribute it and/or modify
17 it under the terms of the GNU General Public License as published by
18 the Free Software Foundation; either version 2 of the License, or
19 (at your option) any later version.
21 This software is distributed in the hope that it will be useful,
22 but WITHOUT ANY WARRANTY; without even the implied warranty of
23 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 GNU General Public License for more details.
26 You should have received a copy of the GNU General Public License
27 along with Atmel wireless lan drivers; if not, write to the Free Software
28 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30 ******************************************************************************/
32 #include <linux/config.h>
33 #ifdef __IN_PCMCIA_PACKAGE__
34 #include <pcmcia/k_compat.h>
36 #include <linux/init.h>
37 #include <linux/kernel.h>
38 #include <linux/module.h>
39 #include <linux/ptrace.h>
40 #include <linux/slab.h>
41 #include <linux/string.h>
42 #include <linux/netdevice.h>
43 #include <linux/moduleparam.h>
44 #include <linux/device.h>
46 #include <pcmcia/version.h>
47 #include <pcmcia/cs_types.h>
48 #include <pcmcia/cs.h>
49 #include <pcmcia/cistpl.h>
50 #include <pcmcia/cisreg.h>
51 #include <pcmcia/ds.h>
52 #include <pcmcia/ciscode.h>
55 #include <asm/system.h>
56 #include <linux/wireless.h>
60 All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If
61 you do not define PCMCIA_DEBUG at all, all the debug code will be
62 left out. If you compile with PCMCIA_DEBUG=0, the debug code will
63 be present but disabled -- but it can then be enabled for specific
64 modules at load time with a 'pc_debug=#' option to insmod.
67 static int pc_debug = PCMCIA_DEBUG;
68 MODULE_PARM(pc_debug, "i");
69 static char *version = "$Revision: 1.2 $";
70 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args);
72 #define DEBUG(n, args...)
75 /*====================================================================*/
77 /* Parameters that can be set with 'insmod' */
79 /* The old way: bit map of interrupts to choose from */
80 /* This means pick from 15, 14, 12, 11, 10, 9, 7, 5, 4, and 3 */
81 static u_int irq_mask = 0xdeb8;
82 /* Newer, simpler way of listing specific interrupts */
83 static int irq_list[4] = { -1 };
85 MODULE_AUTHOR("Simon Kelley");
86 MODULE_DESCRIPTION("Support for Atmel at76c50x 802.11 wireless ethernet cards.");
87 MODULE_LICENSE("GPL");
88 MODULE_SUPPORTED_DEVICE("Atmel at76c50x PCMCIA cards");
89 MODULE_PARM(irq_mask, "i");
90 MODULE_PARM(irq_list, "1-4i");
92 /*====================================================================*/
95 The event() function is this driver's Card Services event handler.
96 It will be called by Card Services when an appropriate card status
97 event is received. The config() and release() entry points are
98 used to configure or release a socket, in response to card
99 insertion and ejection events. They are invoked from the atmel_cs
103 struct net_device *init_atmel_card(int, int, char *, struct device *,
104 int (*present_func)(void *), void * );
105 void stop_atmel_card( struct net_device *, int );
106 int atmel_open( struct net_device * );
108 static void atmel_config(dev_link_t *link);
109 static void atmel_release(dev_link_t *link);
110 static int atmel_event(event_t event, int priority,
111 event_callback_args_t *args);
114 The attach() and detach() entry points are used to create and destroy
115 "instances" of the driver, where each instance represents everything
116 needed to manage one actual PCMCIA card.
119 static dev_link_t *atmel_attach(void);
120 static void atmel_detach(dev_link_t *);
123 You'll also need to prototype all the functions that will actually
124 be used to talk to your device. See 'pcmem_cs' for a good example
125 of a fully self-sufficient driver; the other drivers rely more or
126 less on other parts of the kernel.
130 The dev_info variable is the "key" that is used to match up this
131 device driver with appropriate cards, through the card configuration
135 static dev_info_t dev_info = "atmel_cs";
138 A linked list of "instances" of the atmelnet device. Each actual
139 PCMCIA card corresponds to one device instance, and is described
140 by one dev_link_t structure (defined in ds.h).
142 You may not want to use a linked list for this -- for example, the
143 memory card driver uses an array of dev_link_t pointers, where minor
144 device numbers are used to derive the corresponding array index.
147 static dev_link_t *dev_list = NULL;
150 A dev_link_t structure has fields for most things that are needed
151 to keep track of a socket, but there will usually be some device
152 specific information that also needs to be kept track of. The
153 'priv' pointer in a dev_link_t structure can be used to point to
154 a device-specific private data structure, like this.
156 A driver needs to provide a dev_node_t structure for each device
157 on a card. In some cases, there is only one device per card (for
158 example, ethernet cards, modems). In other cases, there may be
159 many actual or logical devices (SCSI adapters, memory cards with
160 multiple partitions). The dev_node_t structures need to be kept
161 in a linked list starting at the 'dev' field of a dev_link_t
162 structure. We allocate them in the card's private data structure,
163 because they generally shouldn't be allocated dynamically.
165 In this case, we also provide a flag to indicate if a device is
166 "stopped" due to a power management event, or card ejection. The
167 device IO routines can use a flag like this to throttle IO to a
168 card that is not ready to accept it.
171 typedef struct local_info_t {
173 struct net_device *eth_dev;
176 /*======================================================================
178 atmel_attach() creates an "instance" of the driver, allocating
179 local data structures for one device. The device is registered
182 The dev_link structure is initialized, but we don't actually
183 configure the card at this point -- we wait until we receive a
184 card insertion event.
186 ======================================================================*/
188 static dev_link_t *atmel_attach(void)
190 client_reg_t client_reg;
195 DEBUG(0, "atmel_attach()\n");
197 /* Initialize the dev_link_t structure */
198 link = kmalloc(sizeof(struct dev_link_t), GFP_KERNEL);
200 printk(KERN_ERR "atmel_cs: no memory for new device\n");
203 memset(link, 0, sizeof(struct dev_link_t));
205 /* Interrupt setup */
206 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
207 link->irq.IRQInfo1 = IRQ_INFO2_VALID|IRQ_LEVEL_ID;
208 if (irq_list[0] == -1)
209 link->irq.IRQInfo2 = irq_mask;
211 for (i = 0; i < 4; i++)
212 link->irq.IRQInfo2 |= 1 << irq_list[i];
213 link->irq.Handler = NULL;
216 General socket configuration defaults can go here. In this
217 client, we assume very little, and rely on the CIS for almost
218 everything. In most clients, many details (i.e., number, sizes,
219 and attributes of IO windows) are fixed by the nature of the
220 device, and can be hard-wired here.
222 link->conf.Attributes = 0;
224 link->conf.IntType = INT_MEMORY_AND_IO;
226 /* Allocate space for private device-specific data */
227 local = kmalloc(sizeof(local_info_t), GFP_KERNEL);
229 printk(KERN_ERR "atmel_cs: no memory for new device\n");
233 memset(local, 0, sizeof(local_info_t));
236 /* Register with Card Services */
237 link->next = dev_list;
239 client_reg.dev_info = &dev_info;
240 client_reg.Attributes = INFO_IO_CLIENT | INFO_CARD_SHARE;
241 client_reg.EventMask =
242 CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
243 CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
244 CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
245 client_reg.event_handler = &atmel_event;
246 client_reg.Version = 0x0210;
247 client_reg.event_callback_args.client_data = link;
248 ret = pcmcia_register_client(&link->handle, &client_reg);
250 cs_error(link->handle, RegisterClient, ret);
258 /*======================================================================
260 This deletes a driver "instance". The device is de-registered
261 with Card Services. If it has been released, all local data
262 structures are freed. Otherwise, the structures will be freed
263 when the device is released.
265 ======================================================================*/
267 static void atmel_detach(dev_link_t *link)
271 DEBUG(0, "atmel_detach(0x%p)\n", link);
273 /* Locate device structure */
274 for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
275 if (*linkp == link) break;
279 if (link->state & DEV_CONFIG)
282 /* Break the link with Card Services */
284 pcmcia_deregister_client(link->handle);
286 /* Unlink device structure, free pieces */
293 /*======================================================================
295 atmel_config() is scheduled to run after a CARD_INSERTION event
296 is received, to configure the PCMCIA socket, and to make the
297 device available to the system.
299 ======================================================================*/
301 #define CS_CHECK(fn, ret) \
302 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
304 /* Call-back function to interrogate PCMCIA-specific information
305 about the current existance of the card */
306 static int card_present(void *arg)
308 dev_link_t *link = (dev_link_t *)arg;
309 if (link->state & DEV_SUSPEND)
311 else if (link->state & DEV_PRESENT)
317 /* list of cards we know about and their firmware requirements.
318 Go either by Manfid or version strings.
319 Cards not in this list will need a firmware parameter to the module
320 in all probability. Note that the SMC 2632 V2 and V3 have the same
321 manfids, so we ignore those and use the version1 strings. */
329 { 0, 0, "WLAN/802.11b PC CARD", "atmel_at76c502d%s.bin", "Actiontec 802CAT1" },
330 { 0, 0, "ATMEL/AT76C502AR", "atmel_at76c502%s.bin", "NoName-RFMD" },
331 { 0, 0, "ATMEL/AT76C502AR_D", "atmel_at76c502d%s.bin", "NoName-revD" },
332 { 0, 0, "ATMEL/AT76C502AR_E", "atmel_at76c502e%s.bin", "NoName-revE" },
333 { 0, 0, "ATMEL/AT76C504", "atmel_at76c504%s.bin", "NoName-504" },
334 { 0, 0, "ATMEL/AT76C504A", "atmel_at76c504a_2958%s.bin", "NoName-504a-2958" },
335 { 0, 0, "ATMEL/AT76C504_R", "atmel_at76c504_2958%s.bin", "NoName-504-2958" },
336 { MANFID_3COM, 0x0620, NULL, "atmel_at76c502_3com%s.bin", "3com 3CRWE62092B" },
337 { MANFID_3COM, 0x0696, NULL, "atmel_at76c502_3com%s.bin", "3com 3CRSHPW196" },
338 { 0, 0, "SMC/2632W-V2", "atmel_at76c502%s.bin", "SMC 2632W-V2" },
339 { 0, 0, "SMC/2632W", "atmel_at76c502d%s.bin", "SMC 2632W-V3" },
340 { 0xd601, 0x0007, NULL, "atmel_at76c502%s.bin", "Sitecom WLAN-011" },
341 { 0x01bf, 0x3302, NULL, "atmel_at76c502e%s.bin", "Belkin F5D6020-V2" },
342 { 0, 0, "BT/Voyager 1020 Laptop Adapter", "atmel_at76c502%s.bin", "BT Voyager 1020" },
343 { 0, 0, "IEEE 802.11b/Wireless LAN PC Card", "atmel_at76c502%s.bin", "Siemens Gigaset PC Card II" },
344 { 0, 0, "CNet/CNWLC 11Mbps Wireless PC Card V-5", "atmel_at76c502e%s.bin", "CNet CNWLC-811ARL" },
345 { 0, 0, "Wireless/PC_CARD", "atmel_at76c502d%s.bin", "Planet WL-3552" },
346 { 0, 0, "OEM/11Mbps Wireless LAN PC Card V-3", "atmel_at76c502%s.bin", "OEM 11Mbps WLAN PCMCIA Card" },
347 { 0, 0, "11WAVE/11WP611AL-E", "atmel_at76c502e%s.bin", "11WAVE WaveBuddy" }
350 /* This is strictly temporary, until PCMCIA devices get integrated into the device model. */
351 static struct device *atmel_device(void)
353 static struct device dev = {
356 kobject_set_name(&dev.kobj, "atmel_cs");
357 kobject_init(&dev.kobj);
362 static void atmel_config(dev_link_t *link)
364 client_handle_t handle;
368 int last_fn, last_ret;
370 int card_index = -1, done = 0;
372 handle = link->handle;
375 DEBUG(0, "atmel_config(0x%p)\n", link);
377 tuple.Attributes = 0;
378 tuple.TupleData = buf;
379 tuple.TupleDataMax = sizeof(buf);
380 tuple.TupleOffset = 0;
382 tuple.DesiredTuple = CISTPL_MANFID;
383 if (pcmcia_get_first_tuple(handle, &tuple) == 0) {
385 cistpl_manfid_t *manfid;
386 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
387 CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
388 manfid = &(parse.manfid);
389 for (i = 0; i < sizeof(card_table)/sizeof(card_table[0]); i++) {
390 if (!card_table[i].ver1 &&
391 manfid->manf == card_table[i].manf &&
392 manfid->card == card_table[i].card) {
399 tuple.DesiredTuple = CISTPL_VERS_1;
400 if (!done && (pcmcia_get_first_tuple(handle, &tuple) == 0)) {
402 cistpl_vers_1_t *ver1;
403 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
404 CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
405 ver1 = &(parse.version_1);
407 for (i = 0; i < sizeof(card_table)/sizeof(card_table[0]); i++) {
408 for (j = 0; j < ver1->ns; j++) {
409 char *p = card_table[i].ver1;
410 char *q = &ver1->str[ver1->ofs[j]];
413 for (k = 0; k < j; k++) {
414 while ((*p != '\0') && (*p != '/')) p++;
422 while((*q != '\0') && (*p != '\0') &&
423 (*p != '/') && (*p == *q)) p++, q++;
424 if (((*p != '\0') && *p != '/') || *q != '\0')
431 j = 0; /* dummy stmt to shut up compiler */
436 This reads the card's CONFIG tuple to find its configuration
439 tuple.DesiredTuple = CISTPL_CONFIG;
440 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
441 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
442 CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
443 link->conf.ConfigBase = parse.config.base;
444 link->conf.Present = parse.config.rmask[0];
447 link->state |= DEV_CONFIG;
450 In this loop, we scan the CIS for configuration table entries,
451 each of which describes a valid card configuration, including
452 voltage, IO window, memory window, and interrupt settings.
454 We make no assumptions about the card to be configured: we use
455 just the information available in the CIS. In an ideal world,
456 this would work for any PCMCIA card, but it requires a complete
457 and accurate CIS. In practice, a driver usually "knows" most of
458 these things without consulting the CIS, and most client drivers
459 will only use the CIS to fill in implementation-defined details.
461 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
462 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
464 cistpl_cftable_entry_t dflt = { 0 };
465 cistpl_cftable_entry_t *cfg = &(parse.cftable_entry);
466 if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
467 pcmcia_parse_tuple(handle, &tuple, &parse) != 0)
470 if (cfg->flags & CISTPL_CFTABLE_DEFAULT) dflt = *cfg;
471 if (cfg->index == 0) goto next_entry;
472 link->conf.ConfigIndex = cfg->index;
474 /* Does this card need audio output? */
475 if (cfg->flags & CISTPL_CFTABLE_AUDIO) {
476 link->conf.Attributes |= CONF_ENABLE_SPKR;
477 link->conf.Status = CCSR_AUDIO_ENA;
480 /* Use power settings for Vcc and Vpp if present */
481 /* Note that the CIS values need to be rescaled */
482 if (cfg->vcc.present & (1<<CISTPL_POWER_VNOM))
483 link->conf.Vcc = cfg->vcc.param[CISTPL_POWER_VNOM]/10000;
484 else if (dflt.vcc.present & (1<<CISTPL_POWER_VNOM))
485 link->conf.Vcc = dflt.vcc.param[CISTPL_POWER_VNOM]/10000;
487 if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM))
488 link->conf.Vpp1 = link->conf.Vpp2 =
489 cfg->vpp1.param[CISTPL_POWER_VNOM]/10000;
490 else if (dflt.vpp1.present & (1<<CISTPL_POWER_VNOM))
491 link->conf.Vpp1 = link->conf.Vpp2 =
492 dflt.vpp1.param[CISTPL_POWER_VNOM]/10000;
494 /* Do we need to allocate an interrupt? */
495 if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1)
496 link->conf.Attributes |= CONF_ENABLE_IRQ;
498 /* IO window settings */
499 link->io.NumPorts1 = link->io.NumPorts2 = 0;
500 if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
501 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
502 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
503 if (!(io->flags & CISTPL_IO_8BIT))
504 link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
505 if (!(io->flags & CISTPL_IO_16BIT))
506 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
507 link->io.BasePort1 = io->win[0].base;
508 link->io.NumPorts1 = io->win[0].len;
510 link->io.Attributes2 = link->io.Attributes1;
511 link->io.BasePort2 = io->win[1].base;
512 link->io.NumPorts2 = io->win[1].len;
516 /* This reserves IO space but doesn't actually enable it */
517 if (pcmcia_request_io(link->handle, &link->io) != 0)
520 /* If we got this far, we're cool! */
524 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple));
528 Allocate an interrupt line. Note that this does not assign a
529 handler to the interrupt, unless the 'Handler' member of the
530 irq structure is initialized.
532 if (link->conf.Attributes & CONF_ENABLE_IRQ)
533 CS_CHECK(RequestIRQ, pcmcia_request_irq(link->handle, &link->irq));
536 This actually configures the PCMCIA socket -- setting up
537 the I/O windows and the interrupt mapping, and putting the
538 card and host interface into "Memory and IO" mode.
540 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link->handle, &link->conf));
542 if (link->irq.AssignedIRQ == 0) {
544 "atmel: cannot assign IRQ: check that CONFIG_ISA is set in kernel config.");
548 ((local_info_t*)link->priv)->eth_dev =
549 init_atmel_card(link->irq.AssignedIRQ,
551 card_index == -1 ? NULL : card_table[card_index].firmware,
555 if (!((local_info_t*)link->priv)->eth_dev)
559 At this point, the dev_node_t structure(s) need to be
560 initialized and arranged in a linked list at link->dev.
562 strcpy(dev->node.dev_name, ((local_info_t*)link->priv)->eth_dev->name );
563 dev->node.major = dev->node.minor = 0;
564 link->dev = &dev->node;
566 /* Finally, report what we've done */
567 printk(KERN_INFO "%s: %s%sindex 0x%02x: Vcc %d.%d",
569 card_index == -1 ? "" : card_table[card_index].name,
570 card_index == -1 ? "" : " ",
571 link->conf.ConfigIndex,
572 link->conf.Vcc/10, link->conf.Vcc%10);
574 printk(", Vpp %d.%d", link->conf.Vpp1/10, link->conf.Vpp1%10);
575 if (link->conf.Attributes & CONF_ENABLE_IRQ)
576 printk(", irq %d", link->irq.AssignedIRQ);
577 if (link->io.NumPorts1)
578 printk(", io 0x%04x-0x%04x", link->io.BasePort1,
579 link->io.BasePort1+link->io.NumPorts1-1);
580 if (link->io.NumPorts2)
581 printk(" & 0x%04x-0x%04x", link->io.BasePort2,
582 link->io.BasePort2+link->io.NumPorts2-1);
585 link->state &= ~DEV_CONFIG_PENDING;
589 cs_error(link->handle, last_fn, last_ret);
593 /*======================================================================
595 After a card is removed, atmel_release() will unregister the
596 device, and release the PCMCIA configuration. If the device is
597 still open, this will be postponed until it is closed.
599 ======================================================================*/
601 static void atmel_release(dev_link_t *link)
603 struct net_device *dev = ((local_info_t*)link->priv)->eth_dev;
605 DEBUG(0, "atmel_release(0x%p)\n", link);
607 /* Unlink the device chain */
611 stop_atmel_card(dev, 0);
612 ((local_info_t*)link->priv)->eth_dev = NULL;
614 /* Don't bother checking to see if these succeed or not */
615 pcmcia_release_configuration(link->handle);
616 if (link->io.NumPorts1)
617 pcmcia_release_io(link->handle, &link->io);
618 if (link->irq.AssignedIRQ)
619 pcmcia_release_irq(link->handle, &link->irq);
620 link->state &= ~DEV_CONFIG;
623 /*======================================================================
625 The card status event handler. Mostly, this schedules other
626 stuff to run after an event is received.
628 When a CARD_REMOVAL event is received, we immediately set a
629 private flag to block future accesses to this device. All the
630 functions that actually access the device should check this flag
631 to make sure the card is still present.
633 ======================================================================*/
635 static int atmel_event(event_t event, int priority,
636 event_callback_args_t *args)
638 dev_link_t *link = args->client_data;
639 local_info_t *local = link->priv;
641 DEBUG(1, "atmel_event(0x%06x)\n", event);
644 case CS_EVENT_CARD_REMOVAL:
645 link->state &= ~DEV_PRESENT;
646 if (link->state & DEV_CONFIG) {
647 netif_device_detach(local->eth_dev);
651 case CS_EVENT_CARD_INSERTION:
652 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
655 case CS_EVENT_PM_SUSPEND:
656 link->state |= DEV_SUSPEND;
657 /* Fall through... */
658 case CS_EVENT_RESET_PHYSICAL:
659 if (link->state & DEV_CONFIG) {
660 netif_device_detach(local->eth_dev);
661 pcmcia_release_configuration(link->handle);
664 case CS_EVENT_PM_RESUME:
665 link->state &= ~DEV_SUSPEND;
666 /* Fall through... */
667 case CS_EVENT_CARD_RESET:
668 if (link->state & DEV_CONFIG) {
669 pcmcia_request_configuration(link->handle, &link->conf);
670 atmel_open(local->eth_dev);
671 netif_device_attach(local->eth_dev);
678 /*====================================================================*/
679 static struct pcmcia_driver atmel_driver = {
680 .owner = THIS_MODULE,
684 .attach = atmel_attach,
685 .detach = atmel_detach,
688 static int atmel_cs_init(void)
690 return pcmcia_register_driver(&atmel_driver);
693 static void atmel_cs_cleanup(void)
695 pcmcia_unregister_driver(&atmel_driver);
697 /* XXX: this really needs to move into generic code.. */
698 while (dev_list != NULL) {
699 if (dev_list->state & DEV_CONFIG)
700 atmel_release(dev_list);
701 atmel_detach(dev_list);
706 This program is free software; you can redistribute it and/or
707 modify it under the terms of the GNU General Public License
708 as published by the Free Software Foundation; either version 2
709 of the License, or (at your option) any later version.
711 This program is distributed in the hope that it will be useful,
712 but WITHOUT ANY WARRANTY; without even the implied warranty of
713 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
714 GNU General Public License for more details.
718 Redistribution and use in source and binary forms, with or without
719 modification, are permitted provided that the following conditions
722 1. Redistributions of source code must retain the above copyright
723 notice, this list of conditions and the following disclaimer.
724 2. Redistributions in binary form must reproduce the above copyright
725 notice, this list of conditions and the following disclaimer in the
726 documentation and/or other materials provided with the distribution.
727 3. The name of the author may not be used to endorse or promote
728 products derived from this software without specific prior written
731 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
732 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
733 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
734 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
735 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
736 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
737 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
738 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
739 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
740 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
741 POSSIBILITY OF SUCH DAMAGE.
744 module_init(atmel_cs_init);
745 module_exit(atmel_cs_cleanup);