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 = {
355 static void atmel_config(dev_link_t *link)
357 client_handle_t handle;
361 int last_fn, last_ret;
363 int card_index = -1, done = 0;
365 handle = link->handle;
368 DEBUG(0, "atmel_config(0x%p)\n", link);
370 tuple.Attributes = 0;
371 tuple.TupleData = buf;
372 tuple.TupleDataMax = sizeof(buf);
373 tuple.TupleOffset = 0;
375 tuple.DesiredTuple = CISTPL_MANFID;
376 if (pcmcia_get_first_tuple(handle, &tuple) == 0) {
378 cistpl_manfid_t *manfid;
379 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
380 CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
381 manfid = &(parse.manfid);
382 for (i = 0; i < sizeof(card_table)/sizeof(card_table[0]); i++) {
383 if (!card_table[i].ver1 &&
384 manfid->manf == card_table[i].manf &&
385 manfid->card == card_table[i].card) {
392 tuple.DesiredTuple = CISTPL_VERS_1;
393 if (!done && (pcmcia_get_first_tuple(handle, &tuple) == 0)) {
395 cistpl_vers_1_t *ver1;
396 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
397 CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
398 ver1 = &(parse.version_1);
400 for (i = 0; i < sizeof(card_table)/sizeof(card_table[0]); i++) {
401 for (j = 0; j < ver1->ns; j++) {
402 char *p = card_table[i].ver1;
403 char *q = &ver1->str[ver1->ofs[j]];
406 for (k = 0; k < j; k++) {
407 while ((*p != '\0') && (*p != '/')) p++;
415 while((*q != '\0') && (*p != '\0') &&
416 (*p != '/') && (*p == *q)) p++, q++;
417 if (((*p != '\0') && *p != '/') || *q != '\0')
424 j = 0; /* dummy stmt to shut up compiler */
429 This reads the card's CONFIG tuple to find its configuration
432 tuple.DesiredTuple = CISTPL_CONFIG;
433 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
434 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
435 CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
436 link->conf.ConfigBase = parse.config.base;
437 link->conf.Present = parse.config.rmask[0];
440 link->state |= DEV_CONFIG;
443 In this loop, we scan the CIS for configuration table entries,
444 each of which describes a valid card configuration, including
445 voltage, IO window, memory window, and interrupt settings.
447 We make no assumptions about the card to be configured: we use
448 just the information available in the CIS. In an ideal world,
449 this would work for any PCMCIA card, but it requires a complete
450 and accurate CIS. In practice, a driver usually "knows" most of
451 these things without consulting the CIS, and most client drivers
452 will only use the CIS to fill in implementation-defined details.
454 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
455 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
457 cistpl_cftable_entry_t dflt = { 0 };
458 cistpl_cftable_entry_t *cfg = &(parse.cftable_entry);
459 if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
460 pcmcia_parse_tuple(handle, &tuple, &parse) != 0)
463 if (cfg->flags & CISTPL_CFTABLE_DEFAULT) dflt = *cfg;
464 if (cfg->index == 0) goto next_entry;
465 link->conf.ConfigIndex = cfg->index;
467 /* Does this card need audio output? */
468 if (cfg->flags & CISTPL_CFTABLE_AUDIO) {
469 link->conf.Attributes |= CONF_ENABLE_SPKR;
470 link->conf.Status = CCSR_AUDIO_ENA;
473 /* Use power settings for Vcc and Vpp if present */
474 /* Note that the CIS values need to be rescaled */
475 if (cfg->vcc.present & (1<<CISTPL_POWER_VNOM))
476 link->conf.Vcc = cfg->vcc.param[CISTPL_POWER_VNOM]/10000;
477 else if (dflt.vcc.present & (1<<CISTPL_POWER_VNOM))
478 link->conf.Vcc = dflt.vcc.param[CISTPL_POWER_VNOM]/10000;
480 if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM))
481 link->conf.Vpp1 = link->conf.Vpp2 =
482 cfg->vpp1.param[CISTPL_POWER_VNOM]/10000;
483 else if (dflt.vpp1.present & (1<<CISTPL_POWER_VNOM))
484 link->conf.Vpp1 = link->conf.Vpp2 =
485 dflt.vpp1.param[CISTPL_POWER_VNOM]/10000;
487 /* Do we need to allocate an interrupt? */
488 if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1)
489 link->conf.Attributes |= CONF_ENABLE_IRQ;
491 /* IO window settings */
492 link->io.NumPorts1 = link->io.NumPorts2 = 0;
493 if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
494 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
495 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
496 if (!(io->flags & CISTPL_IO_8BIT))
497 link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
498 if (!(io->flags & CISTPL_IO_16BIT))
499 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
500 link->io.BasePort1 = io->win[0].base;
501 link->io.NumPorts1 = io->win[0].len;
503 link->io.Attributes2 = link->io.Attributes1;
504 link->io.BasePort2 = io->win[1].base;
505 link->io.NumPorts2 = io->win[1].len;
509 /* This reserves IO space but doesn't actually enable it */
510 if (pcmcia_request_io(link->handle, &link->io) != 0)
513 /* If we got this far, we're cool! */
517 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple));
521 Allocate an interrupt line. Note that this does not assign a
522 handler to the interrupt, unless the 'Handler' member of the
523 irq structure is initialized.
525 if (link->conf.Attributes & CONF_ENABLE_IRQ)
526 CS_CHECK(RequestIRQ, pcmcia_request_irq(link->handle, &link->irq));
529 This actually configures the PCMCIA socket -- setting up
530 the I/O windows and the interrupt mapping, and putting the
531 card and host interface into "Memory and IO" mode.
533 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link->handle, &link->conf));
535 if (link->irq.AssignedIRQ == 0) {
537 "atmel: cannot assign IRQ: check that CONFIG_ISA is set in kernel config.");
541 ((local_info_t*)link->priv)->eth_dev =
542 init_atmel_card(link->irq.AssignedIRQ,
544 card_index == -1 ? NULL : card_table[card_index].firmware,
548 if (!((local_info_t*)link->priv)->eth_dev)
552 At this point, the dev_node_t structure(s) need to be
553 initialized and arranged in a linked list at link->dev.
555 strcpy(dev->node.dev_name, ((local_info_t*)link->priv)->eth_dev->name );
556 dev->node.major = dev->node.minor = 0;
557 link->dev = &dev->node;
559 /* Finally, report what we've done */
560 printk(KERN_INFO "%s: %s%sindex 0x%02x: Vcc %d.%d",
562 card_index == -1 ? "" : card_table[card_index].name,
563 card_index == -1 ? "" : " ",
564 link->conf.ConfigIndex,
565 link->conf.Vcc/10, link->conf.Vcc%10);
567 printk(", Vpp %d.%d", link->conf.Vpp1/10, link->conf.Vpp1%10);
568 if (link->conf.Attributes & CONF_ENABLE_IRQ)
569 printk(", irq %d", link->irq.AssignedIRQ);
570 if (link->io.NumPorts1)
571 printk(", io 0x%04x-0x%04x", link->io.BasePort1,
572 link->io.BasePort1+link->io.NumPorts1-1);
573 if (link->io.NumPorts2)
574 printk(" & 0x%04x-0x%04x", link->io.BasePort2,
575 link->io.BasePort2+link->io.NumPorts2-1);
578 link->state &= ~DEV_CONFIG_PENDING;
582 cs_error(link->handle, last_fn, last_ret);
586 /*======================================================================
588 After a card is removed, atmel_release() will unregister the
589 device, and release the PCMCIA configuration. If the device is
590 still open, this will be postponed until it is closed.
592 ======================================================================*/
594 static void atmel_release(dev_link_t *link)
596 struct net_device *dev = ((local_info_t*)link->priv)->eth_dev;
598 DEBUG(0, "atmel_release(0x%p)\n", link);
600 /* Unlink the device chain */
604 stop_atmel_card(dev, 0);
605 ((local_info_t*)link->priv)->eth_dev = 0;
607 /* Don't bother checking to see if these succeed or not */
608 pcmcia_release_configuration(link->handle);
609 if (link->io.NumPorts1)
610 pcmcia_release_io(link->handle, &link->io);
611 if (link->irq.AssignedIRQ)
612 pcmcia_release_irq(link->handle, &link->irq);
613 link->state &= ~DEV_CONFIG;
616 /*======================================================================
618 The card status event handler. Mostly, this schedules other
619 stuff to run after an event is received.
621 When a CARD_REMOVAL event is received, we immediately set a
622 private flag to block future accesses to this device. All the
623 functions that actually access the device should check this flag
624 to make sure the card is still present.
626 ======================================================================*/
628 static int atmel_event(event_t event, int priority,
629 event_callback_args_t *args)
631 dev_link_t *link = args->client_data;
632 local_info_t *local = link->priv;
634 DEBUG(1, "atmel_event(0x%06x)\n", event);
637 case CS_EVENT_CARD_REMOVAL:
638 link->state &= ~DEV_PRESENT;
639 if (link->state & DEV_CONFIG) {
640 netif_device_detach(local->eth_dev);
644 case CS_EVENT_CARD_INSERTION:
645 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
648 case CS_EVENT_PM_SUSPEND:
649 link->state |= DEV_SUSPEND;
650 /* Fall through... */
651 case CS_EVENT_RESET_PHYSICAL:
652 if (link->state & DEV_CONFIG) {
653 netif_device_detach(local->eth_dev);
654 pcmcia_release_configuration(link->handle);
657 case CS_EVENT_PM_RESUME:
658 link->state &= ~DEV_SUSPEND;
659 /* Fall through... */
660 case CS_EVENT_CARD_RESET:
661 if (link->state & DEV_CONFIG) {
662 pcmcia_request_configuration(link->handle, &link->conf);
663 atmel_open(local->eth_dev);
664 netif_device_attach(local->eth_dev);
671 /*====================================================================*/
672 static struct pcmcia_driver atmel_driver = {
673 .owner = THIS_MODULE,
677 .attach = atmel_attach,
678 .detach = atmel_detach,
681 static int atmel_cs_init(void)
683 return pcmcia_register_driver(&atmel_driver);
686 static void atmel_cs_cleanup(void)
688 pcmcia_unregister_driver(&atmel_driver);
690 /* XXX: this really needs to move into generic code.. */
691 while (dev_list != NULL) {
692 if (dev_list->state & DEV_CONFIG)
693 atmel_release(dev_list);
694 atmel_detach(dev_list);
699 This program is free software; you can redistribute it and/or
700 modify it under the terms of the GNU General Public License
701 as published by the Free Software Foundation; either version 2
702 of the License, or (at your option) any later version.
704 This program is distributed in the hope that it will be useful,
705 but WITHOUT ANY WARRANTY; without even the implied warranty of
706 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
707 GNU General Public License for more details.
711 Redistribution and use in source and binary forms, with or without
712 modification, are permitted provided that the following conditions
715 1. Redistributions of source code must retain the above copyright
716 notice, this list of conditions and the following disclaimer.
717 2. Redistributions in binary form must reproduce the above copyright
718 notice, this list of conditions and the following disclaimer in the
719 documentation and/or other materials provided with the distribution.
720 3. The name of the author may not be used to endorse or promote
721 products derived from this software without specific prior written
724 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
725 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
726 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
727 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
728 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
729 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
730 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
731 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
732 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
733 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
734 POSSIBILITY OF SUCH DAMAGE.
737 module_init(atmel_cs_init);
738 module_exit(atmel_cs_cleanup);