airo_cs.c
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上传日期:2013-04-10
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- /*======================================================================
- Aironet driver for 4500 and 4800 series cards
- This code is released under both the GPL version 2 and BSD licenses.
- Either license may be used. The respective licenses are found at
- the end of this file.
- This code was developed by Benjamin Reed <breed@users.sourceforge.net>
- including portions of which come from the Aironet PC4500
- Developer's Reference Manual and used with permission. Copyright
- (C) 1999 Benjamin Reed. All Rights Reserved. Permission to use
- code in the Developer's manual was granted for this driver by
- Aironet.
- In addition this module was derived from dummy_cs.
- The initial developer of dummy_cs is David A. Hinds
- <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
- are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
-
- ======================================================================*/
- #include <linux/config.h>
- #ifdef __IN_PCMCIA_PACKAGE__
- #include <pcmcia/k_compat.h>
- #endif
- #include <linux/init.h>
- #include <linux/kernel.h>
- #include <linux/module.h>
- #include <linux/sched.h>
- #include <linux/ptrace.h>
- #include <linux/slab.h>
- #include <linux/string.h>
- #include <linux/timer.h>
- #include <linux/netdevice.h>
- #include <asm/io.h>
- #include <asm/system.h>
- #include <pcmcia/version.h>
- #include <pcmcia/cs_types.h>
- #include <pcmcia/cs.h>
- #include <pcmcia/cistpl.h>
- #include <pcmcia/cisreg.h>
- #include <pcmcia/ds.h>
- /*
- All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If
- you do not define PCMCIA_DEBUG at all, all the debug code will be
- left out. If you compile with PCMCIA_DEBUG=0, the debug code will
- be present but disabled -- but it can then be enabled for specific
- modules at load time with a 'pc_debug=#' option to insmod.
- */
- #ifdef PCMCIA_DEBUG
- static int pc_debug = PCMCIA_DEBUG;
- MODULE_PARM(pc_debug, "i");
- static char *version = "$Revision: 1.2 $";
- #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args);
- #else
- #define DEBUG(n, args...)
- #endif
- /*====================================================================*/
- /* Parameters that can be set with 'insmod' */
- /* The old way: bit map of interrupts to choose from */
- /* This means pick from 15, 14, 12, 11, 10, 9, 7, 5, 4, and 3 */
- static u_int irq_mask = 0xdeb8;
- /* Newer, simpler way of listing specific interrupts */
- static int irq_list[4] = { -1 };
- MODULE_AUTHOR("Benjamin Reed");
- MODULE_DESCRIPTION("Support for Cisco/Aironet 802.11 wireless ethernet
- cards. This is the module that links the PCMCIA card
- with the airo module.");
- MODULE_LICENSE("Dual BSD/GPL");
- MODULE_SUPPORTED_DEVICE("Aironet 4500, 4800 and Cisco 340 PCMCIA cards");
- MODULE_PARM(irq_mask, "i");
- MODULE_PARM(irq_list, "1-4i");
- /*====================================================================*/
- /*
- The event() function is this driver's Card Services event handler.
- It will be called by Card Services when an appropriate card status
- event is received. The config() and release() entry points are
- used to configure or release a socket, in response to card
- insertion and ejection events. They are invoked from the airo_cs
- event handler.
- */
- struct net_device *init_airo_card( int, int, int );
- void stop_airo_card( struct net_device *, int );
- int reset_airo_card( struct net_device * );
- static void airo_config(dev_link_t *link);
- static void airo_release(u_long arg);
- static int airo_event(event_t event, int priority,
- event_callback_args_t *args);
- /*
- The attach() and detach() entry points are used to create and destroy
- "instances" of the driver, where each instance represents everything
- needed to manage one actual PCMCIA card.
- */
- static dev_link_t *airo_attach(void);
- static void airo_detach(dev_link_t *);
- /*
- You'll also need to prototype all the functions that will actually
- be used to talk to your device. See 'pcmem_cs' for a good example
- of a fully self-sufficient driver; the other drivers rely more or
- less on other parts of the kernel.
- */
- /*
- The dev_info variable is the "key" that is used to match up this
- device driver with appropriate cards, through the card configuration
- database.
- */
- static dev_info_t dev_info = "airo_cs";
- /*
- A linked list of "instances" of the aironet device. Each actual
- PCMCIA card corresponds to one device instance, and is described
- by one dev_link_t structure (defined in ds.h).
- You may not want to use a linked list for this -- for example, the
- memory card driver uses an array of dev_link_t pointers, where minor
- device numbers are used to derive the corresponding array index.
- */
- static dev_link_t *dev_list = NULL;
- /*
- A dev_link_t structure has fields for most things that are needed
- to keep track of a socket, but there will usually be some device
- specific information that also needs to be kept track of. The
- 'priv' pointer in a dev_link_t structure can be used to point to
- a device-specific private data structure, like this.
- A driver needs to provide a dev_node_t structure for each device
- on a card. In some cases, there is only one device per card (for
- example, ethernet cards, modems). In other cases, there may be
- many actual or logical devices (SCSI adapters, memory cards with
- multiple partitions). The dev_node_t structures need to be kept
- in a linked list starting at the 'dev' field of a dev_link_t
- structure. We allocate them in the card's private data structure,
- because they generally shouldn't be allocated dynamically.
- In this case, we also provide a flag to indicate if a device is
- "stopped" due to a power management event, or card ejection. The
- device IO routines can use a flag like this to throttle IO to a
- card that is not ready to accept it.
- */
-
- typedef struct local_info_t {
- dev_node_t node;
- struct net_device *eth_dev;
- } local_info_t;
- /*====================================================================*/
- static void cs_error(client_handle_t handle, int func, int ret)
- {
- error_info_t err = { func, ret };
- CardServices(ReportError, handle, &err);
- }
- /*======================================================================
-
- This bit of code is used to avoid unregistering network devices
- at inappropriate times. 2.2 and later kernels are fairly picky
- about when this can happen.
-
- ======================================================================*/
- static void flush_stale_links(void)
- {
- dev_link_t *link, *next;
- for (link = dev_list; link; link = next) {
- next = link->next;
- if (link->state & DEV_STALE_LINK)
- airo_detach(link);
- }
- }
-
- /*======================================================================
-
- airo_attach() creates an "instance" of the driver, allocating
- local data structures for one device. The device is registered
- with Card Services.
-
- The dev_link structure is initialized, but we don't actually
- configure the card at this point -- we wait until we receive a
- card insertion event.
-
- ======================================================================*/
- static dev_link_t *airo_attach(void)
- {
- client_reg_t client_reg;
- dev_link_t *link;
- local_info_t *local;
- int ret, i;
-
- DEBUG(0, "airo_attach()n");
- flush_stale_links();
-
- /* Initialize the dev_link_t structure */
- link = kmalloc(sizeof(struct dev_link_t), GFP_KERNEL);
- if (!link) {
- printk(KERN_ERR "airo_cs: no memory for new devicen");
- return NULL;
- }
- memset(link, 0, sizeof(struct dev_link_t));
- link->release.function = &airo_release;
- link->release.data = (u_long)link;
-
- /* Interrupt setup */
- link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
- link->irq.IRQInfo1 = IRQ_INFO2_VALID|IRQ_LEVEL_ID;
- if (irq_list[0] == -1)
- link->irq.IRQInfo2 = irq_mask;
- else
- for (i = 0; i < 4; i++)
- link->irq.IRQInfo2 |= 1 << irq_list[i];
- link->irq.Handler = NULL;
-
- /*
- General socket configuration defaults can go here. In this
- client, we assume very little, and rely on the CIS for almost
- everything. In most clients, many details (i.e., number, sizes,
- and attributes of IO windows) are fixed by the nature of the
- device, and can be hard-wired here.
- */
- link->conf.Attributes = 0;
- link->conf.Vcc = 50;
- link->conf.IntType = INT_MEMORY_AND_IO;
-
- /* Allocate space for private device-specific data */
- local = kmalloc(sizeof(local_info_t), GFP_KERNEL);
- if (!local) {
- printk(KERN_ERR "airo_cs: no memory for new devicen");
- kfree (link);
- return NULL;
- }
- memset(local, 0, sizeof(local_info_t));
- link->priv = local;
-
- /* Register with Card Services */
- link->next = dev_list;
- dev_list = link;
- client_reg.dev_info = &dev_info;
- client_reg.Attributes = INFO_IO_CLIENT | INFO_CARD_SHARE;
- client_reg.EventMask =
- CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
- CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
- CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
- client_reg.event_handler = &airo_event;
- client_reg.Version = 0x0210;
- client_reg.event_callback_args.client_data = link;
- ret = CardServices(RegisterClient, &link->handle, &client_reg);
- if (ret != 0) {
- cs_error(link->handle, RegisterClient, ret);
- airo_detach(link);
- return NULL;
- }
-
- return link;
- } /* airo_attach */
- /*======================================================================
-
- This deletes a driver "instance". The device is de-registered
- with Card Services. If it has been released, all local data
- structures are freed. Otherwise, the structures will be freed
- when the device is released.
-
- ======================================================================*/
- static void airo_detach(dev_link_t *link)
- {
- dev_link_t **linkp;
-
- DEBUG(0, "airo_detach(0x%p)n", link);
-
- /* Locate device structure */
- for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
- if (*linkp == link) break;
- if (*linkp == NULL)
- return;
-
- del_timer(&link->release);
- if ( link->state & DEV_CONFIG ) {
- airo_release( (int)link );
- if ( link->state & DEV_STALE_CONFIG ) {
- link->state |= DEV_STALE_LINK;
- return;
- }
- }
-
- if ( ((local_info_t*)link->priv)->eth_dev ) {
- stop_airo_card( ((local_info_t*)link->priv)->eth_dev, 0 );
- }
- ((local_info_t*)link->priv)->eth_dev = 0;
-
- /* Break the link with Card Services */
- if (link->handle)
- CardServices(DeregisterClient, link->handle);
-
-
-
- /* Unlink device structure, free pieces */
- *linkp = link->next;
- if (link->priv) {
- kfree(link->priv);
- }
- kfree(link);
-
- } /* airo_detach */
- /*======================================================================
-
- airo_config() is scheduled to run after a CARD_INSERTION event
- is received, to configure the PCMCIA socket, and to make the
- device available to the system.
-
- ======================================================================*/
- #define CS_CHECK(fn, args...)
- while ((last_ret=CardServices(last_fn=(fn),args))!=0) goto cs_failed
- #define CFG_CHECK(fn, args...)
- if (CardServices(fn, args) != 0) goto next_entry
- static void airo_config(dev_link_t *link)
- {
- client_handle_t handle;
- tuple_t tuple;
- cisparse_t parse;
- local_info_t *dev;
- int last_fn, last_ret;
- u_char buf[64];
- win_req_t req;
- memreq_t map;
-
- handle = link->handle;
- dev = link->priv;
- DEBUG(0, "airo_config(0x%p)n", link);
-
- /*
- This reads the card's CONFIG tuple to find its configuration
- registers.
- */
- tuple.DesiredTuple = CISTPL_CONFIG;
- tuple.Attributes = 0;
- tuple.TupleData = buf;
- tuple.TupleDataMax = sizeof(buf);
- tuple.TupleOffset = 0;
- CS_CHECK(GetFirstTuple, handle, &tuple);
- CS_CHECK(GetTupleData, handle, &tuple);
- CS_CHECK(ParseTuple, handle, &tuple, &parse);
- link->conf.ConfigBase = parse.config.base;
- link->conf.Present = parse.config.rmask[0];
-
- /* Configure card */
- link->state |= DEV_CONFIG;
-
- /*
- In this loop, we scan the CIS for configuration table entries,
- each of which describes a valid card configuration, including
- voltage, IO window, memory window, and interrupt settings.
-
- We make no assumptions about the card to be configured: we use
- just the information available in the CIS. In an ideal world,
- this would work for any PCMCIA card, but it requires a complete
- and accurate CIS. In practice, a driver usually "knows" most of
- these things without consulting the CIS, and most client drivers
- will only use the CIS to fill in implementation-defined details.
- */
- tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
- CS_CHECK(GetFirstTuple, handle, &tuple);
- while (1) {
- cistpl_cftable_entry_t dflt = { 0 };
- cistpl_cftable_entry_t *cfg = &(parse.cftable_entry);
- CFG_CHECK(GetTupleData, handle, &tuple);
- CFG_CHECK(ParseTuple, handle, &tuple, &parse);
-
- if (cfg->flags & CISTPL_CFTABLE_DEFAULT) dflt = *cfg;
- if (cfg->index == 0) goto next_entry;
- link->conf.ConfigIndex = cfg->index;
-
- /* Does this card need audio output? */
- if (cfg->flags & CISTPL_CFTABLE_AUDIO) {
- link->conf.Attributes |= CONF_ENABLE_SPKR;
- link->conf.Status = CCSR_AUDIO_ENA;
- }
-
- /* Use power settings for Vcc and Vpp if present */
- /* Note that the CIS values need to be rescaled */
- if (cfg->vcc.present & (1<<CISTPL_POWER_VNOM))
- link->conf.Vcc = cfg->vcc.param[CISTPL_POWER_VNOM]/10000;
- else if (dflt.vcc.present & (1<<CISTPL_POWER_VNOM))
- link->conf.Vcc = dflt.vcc.param[CISTPL_POWER_VNOM]/10000;
-
- if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM))
- link->conf.Vpp1 = link->conf.Vpp2 =
- cfg->vpp1.param[CISTPL_POWER_VNOM]/10000;
- else if (dflt.vpp1.present & (1<<CISTPL_POWER_VNOM))
- link->conf.Vpp1 = link->conf.Vpp2 =
- dflt.vpp1.param[CISTPL_POWER_VNOM]/10000;
-
- /* Do we need to allocate an interrupt? */
- if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1)
- link->conf.Attributes |= CONF_ENABLE_IRQ;
-
- /* IO window settings */
- link->io.NumPorts1 = link->io.NumPorts2 = 0;
- if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
- cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
- link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
- if (!(io->flags & CISTPL_IO_8BIT))
- link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
- if (!(io->flags & CISTPL_IO_16BIT))
- link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
- link->io.BasePort1 = io->win[0].base;
- link->io.NumPorts1 = io->win[0].len;
- if (io->nwin > 1) {
- link->io.Attributes2 = link->io.Attributes1;
- link->io.BasePort2 = io->win[1].base;
- link->io.NumPorts2 = io->win[1].len;
- }
- }
-
- /* This reserves IO space but doesn't actually enable it */
- CFG_CHECK(RequestIO, link->handle, &link->io);
-
- /*
- Now set up a common memory window, if needed. There is room
- in the dev_link_t structure for one memory window handle,
- but if the base addresses need to be saved, or if multiple
- windows are needed, the info should go in the private data
- structure for this device.
-
- Note that the memory window base is a physical address, and
- needs to be mapped to virtual space with ioremap() before it
- is used.
- */
- if ((cfg->mem.nwin > 0) || (dflt.mem.nwin > 0)) {
- cistpl_mem_t *mem =
- (cfg->mem.nwin) ? &cfg->mem : &dflt.mem;
- req.Attributes = WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM;
- req.Base = mem->win[0].host_addr;
- req.Size = mem->win[0].len;
- req.AccessSpeed = 0;
- link->win = (window_handle_t)link->handle;
- CFG_CHECK(RequestWindow, &link->win, &req);
- map.Page = 0; map.CardOffset = mem->win[0].card_addr;
- CFG_CHECK(MapMemPage, link->win, &map);
- }
- /* If we got this far, we're cool! */
- break;
-
- next_entry:
- CS_CHECK(GetNextTuple, handle, &tuple);
- }
-
- /*
- Allocate an interrupt line. Note that this does not assign a
- handler to the interrupt, unless the 'Handler' member of the
- irq structure is initialized.
- */
- if (link->conf.Attributes & CONF_ENABLE_IRQ)
- CS_CHECK(RequestIRQ, link->handle, &link->irq);
-
- /*
- This actually configures the PCMCIA socket -- setting up
- the I/O windows and the interrupt mapping, and putting the
- card and host interface into "Memory and IO" mode.
- */
- CS_CHECK(RequestConfiguration, link->handle, &link->conf);
- ((local_info_t*)link->priv)->eth_dev =
- init_airo_card( link->irq.AssignedIRQ,
- link->io.BasePort1, 1 );
- if (!((local_info_t*)link->priv)->eth_dev) goto cs_failed;
-
- /*
- At this point, the dev_node_t structure(s) need to be
- initialized and arranged in a linked list at link->dev.
- */
- strcpy(dev->node.dev_name, ((local_info_t*)link->priv)->eth_dev->name );
- dev->node.major = dev->node.minor = 0;
- link->dev = &dev->node;
-
- /* Finally, report what we've done */
- printk(KERN_INFO "%s: index 0x%02x: Vcc %d.%d",
- dev->node.dev_name, link->conf.ConfigIndex,
- link->conf.Vcc/10, link->conf.Vcc%10);
- if (link->conf.Vpp1)
- printk(", Vpp %d.%d", link->conf.Vpp1/10, link->conf.Vpp1%10);
- if (link->conf.Attributes & CONF_ENABLE_IRQ)
- printk(", irq %d", link->irq.AssignedIRQ);
- if (link->io.NumPorts1)
- printk(", io 0x%04x-0x%04x", link->io.BasePort1,
- link->io.BasePort1+link->io.NumPorts1-1);
- if (link->io.NumPorts2)
- printk(" & 0x%04x-0x%04x", link->io.BasePort2,
- link->io.BasePort2+link->io.NumPorts2-1);
- if (link->win)
- printk(", mem 0x%06lx-0x%06lx", req.Base,
- req.Base+req.Size-1);
- printk("n");
-
- link->state &= ~DEV_CONFIG_PENDING;
- return;
-
- cs_failed:
- cs_error(link->handle, last_fn, last_ret);
- airo_release((u_long)link);
-
- } /* airo_config */
- /*======================================================================
-
- After a card is removed, airo_release() will unregister the
- device, and release the PCMCIA configuration. If the device is
- still open, this will be postponed until it is closed.
-
- ======================================================================*/
- static void airo_release(u_long arg)
- {
- dev_link_t *link = (dev_link_t *)arg;
-
- DEBUG(0, "airo_release(0x%p)n", link);
-
- /*
- If the device is currently in use, we won't release until it
- is actually closed, because until then, we can't be sure that
- no one will try to access the device or its data structures.
- */
- if (link->open) {
- DEBUG(1, "airo_cs: release postponed, '%s' still openn",
- link->dev->dev_name);
- link->state |= DEV_STALE_CONFIG;
- return;
- }
-
- /* Unlink the device chain */
- link->dev = NULL;
-
- /*
- In a normal driver, additional code may be needed to release
- other kernel data structures associated with this device.
- */
-
- /* Don't bother checking to see if these succeed or not */
- if (link->win)
- CardServices(ReleaseWindow, link->win);
- CardServices(ReleaseConfiguration, link->handle);
- if (link->io.NumPorts1)
- CardServices(ReleaseIO, link->handle, &link->io);
- if (link->irq.AssignedIRQ)
- CardServices(ReleaseIRQ, link->handle, &link->irq);
- link->state &= ~DEV_CONFIG;
-
- } /* airo_release */
- /*======================================================================
-
- The card status event handler. Mostly, this schedules other
- stuff to run after an event is received.
- When a CARD_REMOVAL event is received, we immediately set a
- private flag to block future accesses to this device. All the
- functions that actually access the device should check this flag
- to make sure the card is still present.
-
- ======================================================================*/
- static int airo_event(event_t event, int priority,
- event_callback_args_t *args)
- {
- dev_link_t *link = args->client_data;
- local_info_t *local = link->priv;
-
- DEBUG(1, "airo_event(0x%06x)n", event);
-
- switch (event) {
- case CS_EVENT_CARD_REMOVAL:
- link->state &= ~DEV_PRESENT;
- if (link->state & DEV_CONFIG) {
- netif_device_detach(local->eth_dev);
- mod_timer(&link->release, jiffies + HZ/20);
- }
- break;
- case CS_EVENT_CARD_INSERTION:
- link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
- airo_config(link);
- break;
- case CS_EVENT_PM_SUSPEND:
- link->state |= DEV_SUSPEND;
- /* Fall through... */
- case CS_EVENT_RESET_PHYSICAL:
- if (link->state & DEV_CONFIG) {
- netif_device_detach(local->eth_dev);
- CardServices(ReleaseConfiguration, link->handle);
- }
- break;
- case CS_EVENT_PM_RESUME:
- link->state &= ~DEV_SUSPEND;
- /* Fall through... */
- case CS_EVENT_CARD_RESET:
- if (link->state & DEV_CONFIG) {
- CardServices(RequestConfiguration, link->handle, &link->conf);
- reset_airo_card(local->eth_dev);
- netif_device_attach(local->eth_dev);
- }
- break;
- }
- return 0;
- } /* airo_event */
- /*====================================================================*/
- static int airo_cs_init(void)
- {
- servinfo_t serv;
- DEBUG(0, "%sn", version);
- CardServices(GetCardServicesInfo, &serv);
- if (serv.Revision != CS_RELEASE_CODE) {
- printk(KERN_NOTICE "airo_cs: Card Services release "
- "does not match!n");
- return -1;
- }
- register_pcmcia_driver(&dev_info, &airo_attach, &airo_detach);
- return 0;
- }
- static void airo_cs_cleanup(void)
- {
- DEBUG(0, "airo_cs: unloadingn");
- unregister_pcmcia_driver(&dev_info);
- while (dev_list != NULL) {
- if (dev_list->state & DEV_CONFIG)
- airo_release((u_long)dev_list);
- airo_detach(dev_list);
- }
- }
- /*
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License
- as published by the Free Software Foundation; either version 2
- of the License, or (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- In addition:
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
- 1. Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- 2. Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in the
- documentation and/or other materials provided with the distribution.
- 3. The name of the author may not be used to endorse or promote
- products derived from this software without specific prior written
- permission.
- THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
- INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- POSSIBILITY OF SUCH DAMAGE.
- */
- module_init(airo_cs_init);
- module_exit(airo_cs_cleanup);