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1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
709 lines
24 KiB
C
709 lines
24 KiB
C
/*** -*- linux-c -*- **********************************************************
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Driver for Atmel at76c502 at76c504 and at76c506 wireless cards.
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Copyright 2000-2001 ATMEL Corporation.
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Copyright 2003 Simon Kelley.
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This code was developed from version 2.1.1 of the Atmel drivers,
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released by Atmel corp. under the GPL in December 2002. It also
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includes code from the Linux aironet drivers (C) Benjamin Reed,
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and the Linux PCMCIA package, (C) David Hinds.
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For all queries about this code, please contact the current author,
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Simon Kelley <simon@thekelleys.org.uk> and not Atmel Corporation.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This software is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Atmel wireless lan drivers; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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******************************************************************************/
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#include <linux/config.h>
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#ifdef __IN_PCMCIA_PACKAGE__
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#include <pcmcia/k_compat.h>
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#endif
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/ptrace.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/netdevice.h>
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#include <linux/moduleparam.h>
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#include <linux/device.h>
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#include <pcmcia/version.h>
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#include <pcmcia/cs_types.h>
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#include <pcmcia/cs.h>
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#include <pcmcia/cistpl.h>
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#include <pcmcia/cisreg.h>
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#include <pcmcia/ds.h>
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#include <pcmcia/ciscode.h>
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#include <asm/io.h>
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#include <asm/system.h>
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#include <linux/wireless.h>
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#include "atmel.h"
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/*
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All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If
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you do not define PCMCIA_DEBUG at all, all the debug code will be
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left out. If you compile with PCMCIA_DEBUG=0, the debug code will
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be present but disabled -- but it can then be enabled for specific
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modules at load time with a 'pc_debug=#' option to insmod.
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*/
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#ifdef PCMCIA_DEBUG
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static int pc_debug = PCMCIA_DEBUG;
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module_param(pc_debug, int, 0);
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static char *version = "$Revision: 1.2 $";
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#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args);
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#else
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#define DEBUG(n, args...)
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#endif
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/*====================================================================*/
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MODULE_AUTHOR("Simon Kelley");
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MODULE_DESCRIPTION("Support for Atmel at76c50x 802.11 wireless ethernet cards.");
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MODULE_LICENSE("GPL");
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MODULE_SUPPORTED_DEVICE("Atmel at76c50x PCMCIA cards");
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/*====================================================================*/
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/*
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The event() function is this driver's Card Services event handler.
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It will be called by Card Services when an appropriate card status
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event is received. The config() and release() entry points are
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used to configure or release a socket, in response to card
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insertion and ejection events. They are invoked from the atmel_cs
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event handler.
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*/
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static void atmel_config(dev_link_t *link);
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static void atmel_release(dev_link_t *link);
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static int atmel_event(event_t event, int priority,
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event_callback_args_t *args);
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/*
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The attach() and detach() entry points are used to create and destroy
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"instances" of the driver, where each instance represents everything
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needed to manage one actual PCMCIA card.
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*/
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static dev_link_t *atmel_attach(void);
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static void atmel_detach(dev_link_t *);
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/*
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You'll also need to prototype all the functions that will actually
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be used to talk to your device. See 'pcmem_cs' for a good example
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of a fully self-sufficient driver; the other drivers rely more or
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less on other parts of the kernel.
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*/
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/*
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The dev_info variable is the "key" that is used to match up this
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device driver with appropriate cards, through the card configuration
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database.
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*/
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static dev_info_t dev_info = "atmel_cs";
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/*
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A linked list of "instances" of the atmelnet device. Each actual
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PCMCIA card corresponds to one device instance, and is described
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by one dev_link_t structure (defined in ds.h).
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You may not want to use a linked list for this -- for example, the
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memory card driver uses an array of dev_link_t pointers, where minor
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device numbers are used to derive the corresponding array index.
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*/
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static dev_link_t *dev_list = NULL;
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/*
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A dev_link_t structure has fields for most things that are needed
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to keep track of a socket, but there will usually be some device
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specific information that also needs to be kept track of. The
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'priv' pointer in a dev_link_t structure can be used to point to
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a device-specific private data structure, like this.
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A driver needs to provide a dev_node_t structure for each device
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on a card. In some cases, there is only one device per card (for
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example, ethernet cards, modems). In other cases, there may be
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many actual or logical devices (SCSI adapters, memory cards with
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multiple partitions). The dev_node_t structures need to be kept
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in a linked list starting at the 'dev' field of a dev_link_t
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structure. We allocate them in the card's private data structure,
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because they generally shouldn't be allocated dynamically.
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In this case, we also provide a flag to indicate if a device is
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"stopped" due to a power management event, or card ejection. The
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device IO routines can use a flag like this to throttle IO to a
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card that is not ready to accept it.
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*/
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typedef struct local_info_t {
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dev_node_t node;
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struct net_device *eth_dev;
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} local_info_t;
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/*======================================================================
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atmel_attach() creates an "instance" of the driver, allocating
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local data structures for one device. The device is registered
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with Card Services.
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The dev_link structure is initialized, but we don't actually
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configure the card at this point -- we wait until we receive a
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card insertion event.
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======================================================================*/
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static dev_link_t *atmel_attach(void)
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{
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client_reg_t client_reg;
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dev_link_t *link;
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local_info_t *local;
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int ret;
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DEBUG(0, "atmel_attach()\n");
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/* Initialize the dev_link_t structure */
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link = kmalloc(sizeof(struct dev_link_t), GFP_KERNEL);
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if (!link) {
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printk(KERN_ERR "atmel_cs: no memory for new device\n");
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return NULL;
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}
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memset(link, 0, sizeof(struct dev_link_t));
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/* Interrupt setup */
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link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
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link->irq.IRQInfo1 = IRQ_LEVEL_ID;
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link->irq.Handler = NULL;
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/*
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General socket configuration defaults can go here. In this
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client, we assume very little, and rely on the CIS for almost
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everything. In most clients, many details (i.e., number, sizes,
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and attributes of IO windows) are fixed by the nature of the
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device, and can be hard-wired here.
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*/
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link->conf.Attributes = 0;
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link->conf.Vcc = 50;
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link->conf.IntType = INT_MEMORY_AND_IO;
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/* Allocate space for private device-specific data */
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local = kmalloc(sizeof(local_info_t), GFP_KERNEL);
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if (!local) {
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printk(KERN_ERR "atmel_cs: no memory for new device\n");
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kfree (link);
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return NULL;
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}
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memset(local, 0, sizeof(local_info_t));
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link->priv = local;
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/* Register with Card Services */
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link->next = dev_list;
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dev_list = link;
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client_reg.dev_info = &dev_info;
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client_reg.EventMask =
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CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
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CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
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CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
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client_reg.event_handler = &atmel_event;
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client_reg.Version = 0x0210;
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client_reg.event_callback_args.client_data = link;
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ret = pcmcia_register_client(&link->handle, &client_reg);
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if (ret != 0) {
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cs_error(link->handle, RegisterClient, ret);
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atmel_detach(link);
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return NULL;
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}
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return link;
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} /* atmel_attach */
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/*======================================================================
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This deletes a driver "instance". The device is de-registered
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with Card Services. If it has been released, all local data
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structures are freed. Otherwise, the structures will be freed
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when the device is released.
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======================================================================*/
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static void atmel_detach(dev_link_t *link)
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{
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dev_link_t **linkp;
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DEBUG(0, "atmel_detach(0x%p)\n", link);
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/* Locate device structure */
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for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
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if (*linkp == link) break;
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if (*linkp == NULL)
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return;
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if (link->state & DEV_CONFIG)
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atmel_release(link);
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/* Break the link with Card Services */
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if (link->handle)
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pcmcia_deregister_client(link->handle);
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/* Unlink device structure, free pieces */
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*linkp = link->next;
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if (link->priv)
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kfree(link->priv);
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kfree(link);
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}
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/*======================================================================
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atmel_config() is scheduled to run after a CARD_INSERTION event
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is received, to configure the PCMCIA socket, and to make the
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device available to the system.
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======================================================================*/
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#define CS_CHECK(fn, ret) \
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do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
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/* Call-back function to interrogate PCMCIA-specific information
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about the current existance of the card */
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static int card_present(void *arg)
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{
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dev_link_t *link = (dev_link_t *)arg;
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if (link->state & DEV_SUSPEND)
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return 0;
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else if (link->state & DEV_PRESENT)
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return 1;
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return 0;
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}
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/* list of cards we know about and their firmware requirements.
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Go either by Manfid or version strings.
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Cards not in this list will need a firmware parameter to the module
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in all probability. Note that the SMC 2632 V2 and V3 have the same
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manfids, so we ignore those and use the version1 strings. */
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static struct {
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int manf, card;
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char *ver1;
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AtmelFWType firmware;
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char *name;
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} card_table[] = {
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{ 0, 0, "WLAN/802.11b PC CARD", ATMEL_FW_TYPE_502D, "Actiontec 802CAT1" },
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{ 0, 0, "ATMEL/AT76C502AR", ATMEL_FW_TYPE_502, "NoName-RFMD" },
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{ 0, 0, "ATMEL/AT76C502AR_D", ATMEL_FW_TYPE_502D, "NoName-revD" },
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{ 0, 0, "ATMEL/AT76C502AR_E", ATMEL_FW_TYPE_502E, "NoName-revE" },
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{ 0, 0, "ATMEL/AT76C504", ATMEL_FW_TYPE_504, "NoName-504" },
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{ 0, 0, "ATMEL/AT76C504A", ATMEL_FW_TYPE_504A_2958, "NoName-504a-2958" },
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{ 0, 0, "ATMEL/AT76C504_R", ATMEL_FW_TYPE_504_2958, "NoName-504-2958" },
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{ MANFID_3COM, 0x0620, NULL, ATMEL_FW_TYPE_502_3COM, "3com 3CRWE62092B" },
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{ MANFID_3COM, 0x0696, NULL, ATMEL_FW_TYPE_502_3COM, "3com 3CRSHPW196" },
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{ 0, 0, "SMC/2632W-V2", ATMEL_FW_TYPE_502, "SMC 2632W-V2" },
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{ 0, 0, "SMC/2632W", ATMEL_FW_TYPE_502D, "SMC 2632W-V3" },
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{ 0xd601, 0x0007, NULL, ATMEL_FW_TYPE_502, "Sitecom WLAN-011" },
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{ 0x01bf, 0x3302, NULL, ATMEL_FW_TYPE_502E, "Belkin F5D6020-V2" },
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{ 0, 0, "BT/Voyager 1020 Laptop Adapter", ATMEL_FW_TYPE_502, "BT Voyager 1020" },
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{ 0, 0, "IEEE 802.11b/Wireless LAN PC Card", ATMEL_FW_TYPE_502, "Siemens Gigaset PC Card II" },
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{ 0, 0, "CNet/CNWLC 11Mbps Wireless PC Card V-5", ATMEL_FW_TYPE_502E, "CNet CNWLC-811ARL" },
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{ 0, 0, "Wireless/PC_CARD", ATMEL_FW_TYPE_502D, "Planet WL-3552" },
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{ 0, 0, "OEM/11Mbps Wireless LAN PC Card V-3", ATMEL_FW_TYPE_502, "OEM 11Mbps WLAN PCMCIA Card" },
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{ 0, 0, "11WAVE/11WP611AL-E", ATMEL_FW_TYPE_502E, "11WAVE WaveBuddy" },
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{ 0, 0, "LG/LW2100N", ATMEL_FW_TYPE_502E, "LG LW2100N 11Mbps WLAN PCMCIA Card" },
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};
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static void atmel_config(dev_link_t *link)
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{
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client_handle_t handle;
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tuple_t tuple;
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cisparse_t parse;
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local_info_t *dev;
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int last_fn, last_ret;
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u_char buf[64];
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int card_index = -1, done = 0;
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handle = link->handle;
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dev = link->priv;
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DEBUG(0, "atmel_config(0x%p)\n", link);
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tuple.Attributes = 0;
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tuple.TupleData = buf;
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tuple.TupleDataMax = sizeof(buf);
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tuple.TupleOffset = 0;
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tuple.DesiredTuple = CISTPL_MANFID;
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if (pcmcia_get_first_tuple(handle, &tuple) == 0) {
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int i;
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cistpl_manfid_t *manfid;
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CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
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CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
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manfid = &(parse.manfid);
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for (i = 0; i < sizeof(card_table)/sizeof(card_table[0]); i++) {
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if (!card_table[i].ver1 &&
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manfid->manf == card_table[i].manf &&
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manfid->card == card_table[i].card) {
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card_index = i;
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done = 1;
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}
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}
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}
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tuple.DesiredTuple = CISTPL_VERS_1;
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if (!done && (pcmcia_get_first_tuple(handle, &tuple) == 0)) {
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int i, j, k;
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cistpl_vers_1_t *ver1;
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CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
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CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
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ver1 = &(parse.version_1);
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for (i = 0; i < sizeof(card_table)/sizeof(card_table[0]); i++) {
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for (j = 0; j < ver1->ns; j++) {
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char *p = card_table[i].ver1;
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char *q = &ver1->str[ver1->ofs[j]];
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if (!p)
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goto mismatch;
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for (k = 0; k < j; k++) {
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while ((*p != '\0') && (*p != '/')) p++;
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if (*p == '\0') {
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if (*q != '\0')
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goto mismatch;
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} else {
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p++;
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}
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}
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while((*q != '\0') && (*p != '\0') &&
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(*p != '/') && (*p == *q)) p++, q++;
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if (((*p != '\0') && *p != '/') || *q != '\0')
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goto mismatch;
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}
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card_index = i;
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break; /* done */
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mismatch:
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j = 0; /* dummy stmt to shut up compiler */
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}
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}
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/*
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This reads the card's CONFIG tuple to find its configuration
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registers.
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*/
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tuple.DesiredTuple = CISTPL_CONFIG;
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CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
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CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
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CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
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link->conf.ConfigBase = parse.config.base;
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link->conf.Present = parse.config.rmask[0];
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/* Configure card */
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link->state |= DEV_CONFIG;
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/*
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In this loop, we scan the CIS for configuration table entries,
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each of which describes a valid card configuration, including
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voltage, IO window, memory window, and interrupt settings.
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We make no assumptions about the card to be configured: we use
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just the information available in the CIS. In an ideal world,
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this would work for any PCMCIA card, but it requires a complete
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and accurate CIS. In practice, a driver usually "knows" most of
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these things without consulting the CIS, and most client drivers
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will only use the CIS to fill in implementation-defined details.
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*/
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tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
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CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
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while (1) {
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cistpl_cftable_entry_t dflt = { 0 };
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cistpl_cftable_entry_t *cfg = &(parse.cftable_entry);
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if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
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pcmcia_parse_tuple(handle, &tuple, &parse) != 0)
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goto next_entry;
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if (cfg->flags & CISTPL_CFTABLE_DEFAULT) dflt = *cfg;
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if (cfg->index == 0) goto next_entry;
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link->conf.ConfigIndex = cfg->index;
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/* Does this card need audio output? */
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if (cfg->flags & CISTPL_CFTABLE_AUDIO) {
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link->conf.Attributes |= CONF_ENABLE_SPKR;
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link->conf.Status = CCSR_AUDIO_ENA;
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}
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/* Use power settings for Vcc and Vpp if present */
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/* Note that the CIS values need to be rescaled */
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if (cfg->vcc.present & (1<<CISTPL_POWER_VNOM))
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link->conf.Vcc = cfg->vcc.param[CISTPL_POWER_VNOM]/10000;
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else if (dflt.vcc.present & (1<<CISTPL_POWER_VNOM))
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link->conf.Vcc = dflt.vcc.param[CISTPL_POWER_VNOM]/10000;
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|
|
|
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);
|