diff options
Diffstat (limited to 'drivers/net/wireless/atmel_cs.c')
| -rw-r--r-- | drivers/net/wireless/atmel_cs.c | 708 |
1 files changed, 708 insertions, 0 deletions
diff --git a/drivers/net/wireless/atmel_cs.c b/drivers/net/wireless/atmel_cs.c new file mode 100644 index 00000000000..a91b507e0a7 --- /dev/null +++ b/drivers/net/wireless/atmel_cs.c @@ -0,0 +1,708 @@ +/*** -*- linux-c -*- ********************************************************** + + Driver for Atmel at76c502 at76c504 and at76c506 wireless cards. + + Copyright 2000-2001 ATMEL Corporation. + Copyright 2003 Simon Kelley. + + This code was developed from version 2.1.1 of the Atmel drivers, + released by Atmel corp. under the GPL in December 2002. It also + includes code from the Linux aironet drivers (C) Benjamin Reed, + and the Linux PCMCIA package, (C) David Hinds. + + For all queries about this code, please contact the current author, + Simon Kelley <simon@thekelleys.org.uk> and not Atmel Corporation. + + 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 software 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. + + You should have received a copy of the GNU General Public License + along with Atmel wireless lan drivers; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +******************************************************************************/ + +#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/ptrace.h> +#include <linux/slab.h> +#include <linux/string.h> +#include <linux/netdevice.h> +#include <linux/moduleparam.h> +#include <linux/device.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> +#include <pcmcia/ciscode.h> + +#include <asm/io.h> +#include <asm/system.h> +#include <linux/wireless.h> + +#include "atmel.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_param(pc_debug, int, 0); +static char *version = "$Revision: 1.2 $"; +#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args); +#else +#define DEBUG(n, args...) +#endif + +/*====================================================================*/ + +MODULE_AUTHOR("Simon Kelley"); +MODULE_DESCRIPTION("Support for Atmel at76c50x 802.11 wireless ethernet cards."); +MODULE_LICENSE("GPL"); +MODULE_SUPPORTED_DEVICE("Atmel at76c50x PCMCIA cards"); + +/*====================================================================*/ + +/* + 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 atmel_cs + event handler. +*/ + +static void atmel_config(dev_link_t *link); +static void atmel_release(dev_link_t *link); +static int atmel_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 *atmel_attach(void); +static void atmel_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 = "atmel_cs"; + +/* + A linked list of "instances" of the atmelnet 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; + +/*====================================================================== + + atmel_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 *atmel_attach(void) +{ + client_reg_t client_reg; + dev_link_t *link; + local_info_t *local; + int ret; + + DEBUG(0, "atmel_attach()\n"); + + /* Initialize the dev_link_t structure */ + link = kmalloc(sizeof(struct dev_link_t), GFP_KERNEL); + if (!link) { + printk(KERN_ERR "atmel_cs: no memory for new device\n"); + return NULL; + } + memset(link, 0, sizeof(struct dev_link_t)); + + /* Interrupt setup */ + link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; + link->irq.IRQInfo1 = IRQ_LEVEL_ID; + 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 "atmel_cs: no memory for new device\n"); + 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.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 = &atmel_event; + client_reg.Version = 0x0210; + client_reg.event_callback_args.client_data = link; + ret = pcmcia_register_client(&link->handle, &client_reg); + if (ret != 0) { + cs_error(link->handle, RegisterClient, ret); + atmel_detach(link); + return NULL; + } + + return link; +} /* atmel_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 atmel_detach(dev_link_t *link) +{ + dev_link_t **linkp; + + DEBUG(0, "atmel_detach(0x%p)\n", link); + + /* Locate device structure */ + for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next) + if (*linkp == link) break; + if (*linkp == NULL) + return; + + if (link->state & DEV_CONFIG) + atmel_release(link); + + /* Break the link with Card Services */ + if (link->handle) + pcmcia_deregister_client(link->handle); + + /* Unlink device structure, free pieces */ + *linkp = link->next; + if (link->priv) + kfree(link->priv); + kfree(link); +} + +/*====================================================================== + + atmel_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, ret) \ +do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) + +/* Call-back function to interrogate PCMCIA-specific information + about the current existance of the card */ +static int card_present(void *arg) +{ + dev_link_t *link = (dev_link_t *)arg; + if (link->state & DEV_SUSPEND) + return 0; + else if (link->state & DEV_PRESENT) + return 1; + + return 0; +} + +/* list of cards we know about and their firmware requirements. + Go either by Manfid or version strings. + Cards not in this list will need a firmware parameter to the module + in all probability. Note that the SMC 2632 V2 and V3 have the same + manfids, so we ignore those and use the version1 strings. */ + +static struct { + int manf, card; + char *ver1; + AtmelFWType firmware; + char *name; +} card_table[] = { + { 0, 0, "WLAN/802.11b PC CARD", ATMEL_FW_TYPE_502D, "Actiontec 802CAT1" }, + { 0, 0, "ATMEL/AT76C502AR", ATMEL_FW_TYPE_502, "NoName-RFMD" }, + { 0, 0, "ATMEL/AT76C502AR_D", ATMEL_FW_TYPE_502D, "NoName-revD" }, + { 0, 0, "ATMEL/AT76C502AR_E", ATMEL_FW_TYPE_502E, "NoName-revE" }, + { 0, 0, "ATMEL/AT76C504", ATMEL_FW_TYPE_504, "NoName-504" }, + { 0, 0, "ATMEL/AT76C504A", ATMEL_FW_TYPE_504A_2958, "NoName-504a-2958" }, + { 0, 0, "ATMEL/AT76C504_R", ATMEL_FW_TYPE_504_2958, "NoName-504-2958" }, + { MANFID_3COM, 0x0620, NULL, ATMEL_FW_TYPE_502_3COM, "3com 3CRWE62092B" }, + { MANFID_3COM, 0x0696, NULL, ATMEL_FW_TYPE_502_3COM, "3com 3CRSHPW196" }, + { 0, 0, "SMC/2632W-V2", ATMEL_FW_TYPE_502, "SMC 2632W-V2" }, + { 0, 0, "SMC/2632W", ATMEL_FW_TYPE_502D, "SMC 2632W-V3" }, + { 0xd601, 0x0007, NULL, ATMEL_FW_TYPE_502, "Sitecom WLAN-011" }, + { 0x01bf, 0x3302, NULL, ATMEL_FW_TYPE_502E, "Belkin F5D6020-V2" }, + { 0, 0, "BT/Voyager 1020 Laptop Adapter", ATMEL_FW_TYPE_502, "BT Voyager 1020" }, + { 0, 0, "IEEE 802.11b/Wireless LAN PC Card", ATMEL_FW_TYPE_502, "Siemens Gigaset PC Card II" }, + { 0, 0, "CNet/CNWLC 11Mbps Wireless PC Card V-5", ATMEL_FW_TYPE_502E, "CNet CNWLC-811ARL" }, + { 0, 0, "Wireless/PC_CARD", ATMEL_FW_TYPE_502D, "Planet WL-3552" }, + { 0, 0, "OEM/11Mbps Wireless LAN PC Card V-3", ATMEL_FW_TYPE_502, "OEM 11Mbps WLAN PCMCIA Card" }, + { 0, 0, "11WAVE/11WP611AL-E", ATMEL_FW_TYPE_502E, "11WAVE WaveBuddy" }, + { 0, 0, "LG/LW2100N", ATMEL_FW_TYPE_502E, "LG LW2100N 11Mbps WLAN PCMCIA Card" }, +}; + +static void atmel_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]; + int card_index = -1, done = 0; + + handle = link->handle; + dev = link->priv; + + DEBUG(0, "atmel_config(0x%p)\n", link); + + tuple.Attributes = 0; + tuple.TupleData = buf; + tuple.TupleDataMax = sizeof(buf); + tuple.TupleOffset = 0; + + tuple.DesiredTuple = CISTPL_MANFID; + if (pcmcia_get_first_tuple(handle, &tuple) == 0) { + int i; + cistpl_manfid_t *manfid; + CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple)); + CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse)); + manfid = &(parse.manfid); + for (i = 0; i < sizeof(card_table)/sizeof(card_table[0]); i++) { + if (!card_table[i].ver1 && + manfid->manf == card_table[i].manf && + manfid->card == card_table[i].card) { + card_index = i; + done = 1; + } + } + } + + tuple.DesiredTuple = CISTPL_VERS_1; + if (!done && (pcmcia_get_first_tuple(handle, &tuple) == 0)) { + int i, j, k; + cistpl_vers_1_t *ver1; + CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple)); + CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse)); + ver1 = &(parse.version_1); + + for (i = 0; i < sizeof(card_table)/sizeof(card_table[0]); i++) { + for (j = 0; j < ver1->ns; j++) { + char *p = card_table[i].ver1; + char *q = &ver1->str[ver1->ofs[j]]; + if (!p) + goto mismatch; + for (k = 0; k < j; k++) { + while ((*p != '\0') && (*p != '/')) p++; + if (*p == '\0') { + if (*q != '\0') + goto mismatch; + } else { + p++; + } + } + while((*q != '\0') && (*p != '\0') && + (*p != '/') && (*p == *q)) p++, q++; + if (((*p != '\0') && *p != '/') || *q != '\0') + goto mismatch; + } + card_index = i; + break; /* done */ + + mismatch: + j = 0; /* dummy stmt to shut up compiler */ + } + } + + /* + This reads the card's CONFIG tuple to find its configuration + registers. + */ + tuple.DesiredTuple = CISTPL_CONFIG; + CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple)); + CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple)); + CS_CHECK(ParseTuple, pcmcia_parse_tuple(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, pcmcia_get_first_tuple(handle, &tuple)); + while (1) { + cistpl_cftable_entry_t dflt = { 0 }; + cistpl_cftable_entry_t *cfg = &(parse.cftable_entry); + if (pcmcia_get_tuple_data(handle, &tuple) != 0 || + pcmcia_parse_tuple(handle, &tuple, &parse) != 0) + goto next_entry; + + 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 */ + if (pcmcia_request_io(link->handle, &link->io) != 0) + goto next_entry; + + /* If we got this far, we're cool! */ + break; + + next_entry: + CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(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, pcmcia_request_irq(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, pcmcia_request_configuration(link->handle, &link->conf)); + + if (link->irq.AssignedIRQ == 0) { + printk(KERN_ALERT + "atmel: cannot assign IRQ: check that CONFIG_ISA is set in kernel config."); + goto cs_failed; + } + + ((local_info_t*)link->priv)->eth_dev = + init_atmel_card(link->irq.AssignedIRQ, + link->io.BasePort1, + card_index == -1 ? ATMEL_FW_TYPE_NONE : card_table[card_index].firmware, + &handle_to_dev(handle), + card_present, + link); + 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: %s%sindex 0x%02x: Vcc %d.%d", + dev->node.dev_name, + card_index == -1 ? "" : card_table[card_index].name, + card_index == -1 ? "" : " ", + 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); + printk("\n"); + + link->state &= ~DEV_CONFIG_PENDING; + return; + + cs_failed: + cs_error(link->handle, last_fn, last_ret); + atmel_release(link); +} + +/*====================================================================== + + After a card is removed, atmel_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 atmel_release(dev_link_t *link) +{ + struct net_device *dev = ((local_info_t*)link->priv)->eth_dev; + + DEBUG(0, "atmel_release(0x%p)\n", link); + + /* Unlink the device chain */ + link->dev = NULL; + + if (dev) + stop_atmel_card(dev, 0); + ((local_info_t*)link->priv)->eth_dev = NULL; + + /* Don't bother checking to see if these succeed or not */ + pcmcia_release_configuration(link->handle); + if (link->io.NumPorts1) + pcmcia_release_io(link->handle, &link->io); + if (link->irq.AssignedIRQ) + pcmcia_release_irq(link->handle, &link->irq); + link->state &= ~DEV_CONFIG; +} + +/*====================================================================== + + 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 atmel_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, "atmel_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); + atmel_release(link); + } + break; + case CS_EVENT_CARD_INSERTION: + link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; + atmel_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); + pcmcia_release_configuration(link->handle); + } + break; + case CS_EVENT_PM_RESUME: + link->state &= ~DEV_SUSPEND; + /* Fall through... */ + case CS_EVENT_CARD_RESET: + if (link->state & DEV_CONFIG) { + pcmcia_request_configuration(link->handle, &link->conf); + atmel_open(local->eth_dev); + netif_device_attach(local->eth_dev); + } + break; + } + return 0; +} /* atmel_event */ + +/*====================================================================*/ +static struct pcmcia_driver atmel_driver = { + .owner = THIS_MODULE, + .drv = { + .name = "atmel_cs", + }, + .attach = atmel_attach, + .detach = atmel_detach, +}; + +static int atmel_cs_init(void) +{ + return pcmcia_register_driver(&atmel_driver); +} + +static void atmel_cs_cleanup(void) +{ + pcmcia_unregister_driver(&atmel_driver); + BUG_ON(dev_list != NULL); +} + +/* + 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(atmel_cs_init); +module_exit(atmel_cs_cleanup); |