Linux-2.6.33.2/drivers/staging/wlags49_h2/wl_cs.c
/*******************************************************************************
* Agere Systems Inc.
* Wireless device driver for Linux (wlags49).
*
* Copyright (c) 1998-2003 Agere Systems Inc.
* All rights reserved.
* http://www.agere.com
*
* Initially developed by TriplePoint, Inc.
* http://www.triplepoint.com
*
*------------------------------------------------------------------------------
*
* This file contains processing and initialization specific to Card Services
* devices (PCMCIA, CF).
*
*------------------------------------------------------------------------------
*
* SOFTWARE LICENSE
*
* This software is provided subject to the following terms and conditions,
* which you should read carefully before using the software. Using this
* software indicates your acceptance of these terms and conditions. If you do
* not agree with these terms and conditions, do not use the software.
*
* Copyright © 2003 Agere Systems Inc.
* All rights reserved.
*
* Redistribution and use in source or binary forms, with or without
* modifications, are permitted provided that the following conditions are met:
*
* . Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following Disclaimer as comments in the code as
* well as in the documentation and/or other materials provided with the
* distribution.
*
* . 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.
*
* . Neither the name of Agere Systems Inc. nor the names of the contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* Disclaimer
*
* THIS SOFTWARE IS PROVIDED “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, INFRINGEMENT AND THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ANY
* USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE IS SOLELY AT THE USERS OWN
* RISK. IN NO EVENT SHALL AGERE SYSTEMS INC. OR CONTRIBUTORS 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, INCLUDING, BUT NOT LIMITED TO, 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.
*
******************************************************************************/
/*******************************************************************************
* include files
******************************************************************************/
#include <wl_version.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/ptrace.h>
#include <linux/slab.h>
#include <linux/ctype.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/in.h>
#include <linux/delay.h>
#include <asm/io.h>
#include <asm/system.h>
#include <asm/bitops.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/if_arp.h>
#include <linux/ioport.h>
#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/cisreg.h>
#include <pcmcia/ciscode.h>
#include <pcmcia/ds.h>
#include <debug.h>
#include <hcf.h>
#include <dhf.h>
#include <hcfdef.h>
#include <wl_if.h>
#include <wl_internal.h>
#include <wl_util.h>
#include <wl_main.h>
#include <wl_netdev.h>
#include <wl_cs.h>
#include <wl_sysfs.h>
/*******************************************************************************
* macro definitions
******************************************************************************/
#define CS_CHECK(fn, ret) do { \
last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; \
} while (0)
/*******************************************************************************
* global definitions
******************************************************************************/
#if DBG
extern dbg_info_t *DbgInfo;
#endif /* DBG */
/*******************************************************************************
* wl_adapter_attach()
*******************************************************************************
*
* DESCRIPTION:
*
* Creates an instance of the driver, allocating local data structures for
* one device. The device is registered with Card Services.
*
* PARAMETERS:
*
* none
*
* RETURNS:
*
* pointer to an allocated dev_link_t structure
* NULL on failure
*
******************************************************************************/
static int wl_adapter_attach(struct pcmcia_device *link)
{
struct net_device *dev;
struct wl_private *lp;
/*------------------------------------------------------------------------*/
DBG_FUNC( "wl_adapter_attach" );
DBG_ENTER( DbgInfo );
dev = wl_device_alloc();
if(dev == NULL) {
DBG_ERROR( DbgInfo, "wl_device_alloc returned NULL\n");
return -ENOMEM;
}
link->io.NumPorts1 = HCF_NUM_IO_PORTS;
link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
link->io.IOAddrLines = 6;
link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT;
link->irq.IRQInfo1 = IRQ_INFO2_VALID | IRQ_LEVEL_ID;
link->irq.Handler = &wl_isr;
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
link->conf.ConfigIndex = 5;
link->conf.Present = PRESENT_OPTION;
link->priv = link->irq.Instance = dev;
lp = wl_priv(dev);
lp->link = link;
wl_adapter_insert(link);
DBG_LEAVE( DbgInfo );
return 0;
} // wl_adapter_attach
/*============================================================================*/
/*******************************************************************************
* wl_adapter_detach()
*******************************************************************************
*
* DESCRIPTION:
*
* This deletes a driver "instance". The device is de-registered with Card
* Services. If it has been released, then the net device is unregistered, and
* all local data structures are freed. Otherwise, the structures will be
* freed when the device is released.
*
* PARAMETERS:
*
* link - pointer to the dev_link_t structure representing the device to
* detach
*
* RETURNS:
*
* N/A
*
******************************************************************************/
static void wl_adapter_detach(struct pcmcia_device *link)
{
struct net_device *dev = link->priv;
/*------------------------------------------------------------------------*/
DBG_FUNC( "wl_adapter_detach" );
DBG_ENTER( DbgInfo );
DBG_PARAM( DbgInfo, "link", "0x%p", link );
wl_adapter_release(link);
if (dev) {
unregister_wlags_sysfs(dev);
unregister_netdev(dev);
}
wl_device_dealloc(dev);
DBG_LEAVE( DbgInfo );
} // wl_adapter_detach
/*============================================================================*/
/*******************************************************************************
* wl_adapter_release()
*******************************************************************************
*
* DESCRIPTION:
*
* After a card is removed, this routine will release the PCMCIA
* configuration. If the device is still open, this will be postponed until it
* is closed.
*
* PARAMETERS:
*
* arg - a u_long representing a pointer to a dev_link_t structure for the
* device to be released.
*
* RETURNS:
*
* N/A
*
******************************************************************************/
void wl_adapter_release( struct pcmcia_device *link )
{
DBG_FUNC( "wl_adapter_release" );
DBG_ENTER( DbgInfo );
DBG_PARAM( DbgInfo, "link", "0x%p", link);
/* Stop hardware */
wl_remove(link->priv);
pcmcia_disable_device(link);
DBG_LEAVE( DbgInfo );
} // wl_adapter_release
/*============================================================================*/
static int wl_adapter_suspend(struct pcmcia_device *link)
{
struct net_device *dev = link->priv;
//if (link->open) {
netif_device_detach(dev);
wl_suspend(dev);
//// CHECK! pcmcia_release_configuration(link->handle);
//}
return 0;
} // wl_adapter_suspend
static int wl_adapter_resume(struct pcmcia_device *link)
{
struct net_device *dev = link->priv;
wl_resume(dev);
netif_device_attach( dev );
return 0;
} // wl_adapter_resume
/*******************************************************************************
* wl_adapter_insert()
*******************************************************************************
*
* DESCRIPTION:
*
* wl_adapter_insert() is scheduled to run after a CARD_INSERTION event is
* received, to configure the PCMCIA socket, and to make the ethernet device
* available to the system.
*
* PARAMETERS:
*
* link - pointer to the dev_link_t structure representing the device to
* insert
*
* RETURNS:
*
* N/A
*
******************************************************************************/
void wl_adapter_insert( struct pcmcia_device *link )
{
struct net_device *dev;
int i;
int last_fn, last_ret;
/*------------------------------------------------------------------------*/
DBG_FUNC( "wl_adapter_insert" );
DBG_ENTER( DbgInfo );
DBG_PARAM( DbgInfo, "link", "0x%p", link );
dev = link->priv;
/* Do we need to allocate an interrupt? */
link->conf.Attributes |= CONF_ENABLE_IRQ;
CS_CHECK(RequestIO, pcmcia_request_io(link, &link->io));
CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
dev->irq = link->irq.AssignedIRQ;
dev->base_addr = link->io.BasePort1;
SET_NETDEV_DEV(dev, &handle_to_dev(link));
if (register_netdev(dev) != 0) {
printk("%s: register_netdev() failed\n", MODULE_NAME);
goto failed;
}
link->dev_node = &( wl_priv(dev) )->node;
strcpy(( wl_priv(dev) )->node.dev_name, dev->name);
register_wlags_sysfs(dev);
printk(KERN_INFO "%s: Wireless, io_addr %#03lx, irq %d, ""mac_address ",
dev->name, dev->base_addr, dev->irq);
for( i = 0; i < ETH_ALEN; i++ ) {
printk("%02X%c", dev->dev_addr[i], ((i < (ETH_ALEN-1)) ? ':' : '\n'));
}
DBG_LEAVE( DbgInfo );
return;
cs_failed:
cs_error( link, last_fn, last_ret );
failed:
wl_adapter_release( link );
DBG_LEAVE(DbgInfo);
return;
} // wl_adapter_insert
/*============================================================================*/
/*******************************************************************************
* wl_adapter_open()
*******************************************************************************
*
* DESCRIPTION:
*
* Open the device.
*
* PARAMETERS:
*
* dev - a pointer to a net_device structure representing the network
* device to open.
*
* RETURNS:
*
* 0 on success
* errno value otherwise
*
******************************************************************************/
int wl_adapter_open( struct net_device *dev )
{
struct wl_private *lp = wl_priv(dev);
struct pcmcia_device *link = lp->link;
int result = 0;
int hcf_status = HCF_SUCCESS;
/*------------------------------------------------------------------------*/
DBG_FUNC( "wl_adapter_open" );
DBG_ENTER( DbgInfo );
DBG_PRINT( "%s\n", VERSION_INFO );
DBG_PARAM( DbgInfo, "dev", "%s (0x%p)", dev->name, dev );
if(!pcmcia_dev_present(link))
{
DBG_LEAVE( DbgInfo );
return -ENODEV;
}
link->open++;
hcf_status = wl_open( dev );
if( hcf_status != HCF_SUCCESS ) {
link->open--;
result = -ENODEV;
}
DBG_LEAVE( DbgInfo );
return result;
} // wl_adapter_open
/*============================================================================*/
/*******************************************************************************
* wl_adapter_close()
*******************************************************************************
*
* DESCRIPTION:
*
* Close the device.
*
* PARAMETERS:
*
* dev - a pointer to a net_device structure representing the network
* device to close.
*
* RETURNS:
*
* 0 on success
* errno value otherwise
*
******************************************************************************/
int wl_adapter_close( struct net_device *dev )
{
struct wl_private *lp = wl_priv(dev);
struct pcmcia_device *link = lp->link;
/*------------------------------------------------------------------------*/
DBG_FUNC( "wl_adapter_close" );
DBG_ENTER( DbgInfo );
DBG_PARAM( DbgInfo, "dev", "%s (0x%p)", dev->name, dev );
if( link == NULL ) {
DBG_LEAVE( DbgInfo );
return -ENODEV;
}
DBG_TRACE( DbgInfo, "%s: Shutting down adapter.\n", dev->name );
wl_close( dev );
link->open--;
DBG_LEAVE( DbgInfo );
return 0;
} // wl_adapter_close
/*============================================================================*/
static struct pcmcia_device_id wl_adapter_ids[] = {
#if ! ((HCF_TYPE) & HCF_TYPE_HII5)
PCMCIA_DEVICE_MANF_CARD(0x0156, 0x0003),
PCMCIA_DEVICE_PROD_ID12("Agere Systems", "Wireless PC Card Model 0110",
0x33103a9b, 0xe175b0dd),
#else
PCMCIA_DEVICE_MANF_CARD(0x0156, 0x0004),
PCMCIA_DEVICE_PROD_ID12("Linksys", "WCF54G_Wireless-G_CompactFlash_Card",
0x0733cc81, 0x98a599e1),
#endif // (HCF_TYPE) & HCF_TYPE_HII5
PCMCIA_DEVICE_NULL,
};
MODULE_DEVICE_TABLE(pcmcia, wl_adapter_ids);
static struct pcmcia_driver wlags49_driver = {
.owner = THIS_MODULE,
.drv = {
.name = DRIVER_NAME,
},
.probe = wl_adapter_attach,
.remove = wl_adapter_detach,
.id_table = wl_adapter_ids,
.suspend = wl_adapter_suspend,
.resume = wl_adapter_resume,
};
/*******************************************************************************
* wl_adapter_init_module()
*******************************************************************************
*
* DESCRIPTION:
*
* Called by init_module() to perform PCMCIA driver initialization.
*
* PARAMETERS:
*
* N/A
*
* RETURNS:
*
* 0 on success
* -1 on error
*
******************************************************************************/
int wl_adapter_init_module( void )
{
int ret;
/*------------------------------------------------------------------------*/
DBG_FUNC( "wl_adapter_init_module" );
DBG_ENTER( DbgInfo );
DBG_TRACE( DbgInfo, "wl_adapter_init_module() -- PCMCIA\n" );
ret = pcmcia_register_driver(&wlags49_driver);
DBG_LEAVE( DbgInfo );
return ret;
} // wl_adapter_init_module
/*============================================================================*/
/*******************************************************************************
* wl_adapter_cleanup_module()
*******************************************************************************
*
* DESCRIPTION:
*
* Called by cleanup_module() to perform driver uninitialization.
*
* PARAMETERS:
*
* N/A
*
* RETURNS:
*
* N/A
*
******************************************************************************/
void wl_adapter_cleanup_module( void )
{
DBG_FUNC( "wl_adapter_cleanup_module" );
DBG_ENTER( DbgInfo );
DBG_TRACE( DbgInfo, "wl_adapter_cleanup_module() -- PCMCIA\n" );
pcmcia_unregister_driver(&wlags49_driver);
DBG_LEAVE( DbgInfo );
return;
} // wl_adapter_cleanup_module
/*============================================================================*/
/*******************************************************************************
* wl_adapter_is_open()
*******************************************************************************
*
* DESCRIPTION:
*
* Check with Card Services to determine if this device is open.
*
* PARAMETERS:
*
* dev - a pointer to the net_device structure whose open status will be
* checked
*
* RETURNS:
*
* nonzero if device is open
* 0 otherwise
*
******************************************************************************/
int wl_adapter_is_open( struct net_device *dev )
{
struct wl_private *lp = wl_priv(dev);
struct pcmcia_device *link = lp->link;
if(!pcmcia_dev_present(link)) {
return 0;
}
return( link->open );
} // wl_adapter_is_open
/*============================================================================*/
#if DBG
/*******************************************************************************
* DbgEvent()
*******************************************************************************
*
* DESCRIPTION:
*
* Converts the card serivces events to text for debugging.
*
* PARAMETERS:
*
* mask - a integer representing the error(s) being reported by Card
* Services.
*
* RETURNS:
*
* a pointer to a string describing the error(s)
*
******************************************************************************/
const char* DbgEvent( int mask )
{
static char DbgBuffer[256];
char *pBuf;
/*------------------------------------------------------------------------*/
pBuf = DbgBuffer;
*pBuf = '\0';
if( mask & CS_EVENT_WRITE_PROTECT )
strcat( pBuf, "WRITE_PROTECT " );
if(mask & CS_EVENT_CARD_LOCK)
strcat( pBuf, "CARD_LOCK " );
if(mask & CS_EVENT_CARD_INSERTION)
strcat( pBuf, "CARD_INSERTION " );
if(mask & CS_EVENT_CARD_REMOVAL)
strcat( pBuf, "CARD_REMOVAL " );
if(mask & CS_EVENT_BATTERY_DEAD)
strcat( pBuf, "BATTERY_DEAD " );
if(mask & CS_EVENT_BATTERY_LOW)
strcat( pBuf, "BATTERY_LOW " );
if(mask & CS_EVENT_READY_CHANGE)
strcat( pBuf, "READY_CHANGE " );
if(mask & CS_EVENT_CARD_DETECT)
strcat( pBuf, "CARD_DETECT " );
if(mask & CS_EVENT_RESET_REQUEST)
strcat( pBuf, "RESET_REQUEST " );
if(mask & CS_EVENT_RESET_PHYSICAL)
strcat( pBuf, "RESET_PHYSICAL " );
if(mask & CS_EVENT_CARD_RESET)
strcat( pBuf, "CARD_RESET " );
if(mask & CS_EVENT_REGISTRATION_COMPLETE)
strcat( pBuf, "REGISTRATION_COMPLETE " );
// if(mask & CS_EVENT_RESET_COMPLETE)
// strcat( pBuf, "RESET_COMPLETE " );
if(mask & CS_EVENT_PM_SUSPEND)
strcat( pBuf, "PM_SUSPEND " );
if(mask & CS_EVENT_PM_RESUME)
strcat( pBuf, "PM_RESUME " );
if(mask & CS_EVENT_INSERTION_REQUEST)
strcat( pBuf, "INSERTION_REQUEST " );
if(mask & CS_EVENT_EJECTION_REQUEST)
strcat( pBuf, "EJECTION_REQUEST " );
if(mask & CS_EVENT_MTD_REQUEST)
strcat( pBuf, "MTD_REQUEST " );
if(mask & CS_EVENT_ERASE_COMPLETE)
strcat( pBuf, "ERASE_COMPLETE " );
if(mask & CS_EVENT_REQUEST_ATTENTION)
strcat( pBuf, "REQUEST_ATTENTION " );
if(mask & CS_EVENT_CB_DETECT)
strcat( pBuf, "CB_DETECT " );
if(mask & CS_EVENT_3VCARD)
strcat( pBuf, "3VCARD " );
if(mask & CS_EVENT_XVCARD)
strcat( pBuf, "XVCARD " );
if( *pBuf ) {
pBuf[strlen(pBuf) - 1] = '\0';
} else {
if( mask != 0x0 ) {
sprintf( pBuf, "<<0x%08x>>", mask );
}
}
return pBuf;
} // DbgEvent
/*============================================================================*/
#endif /* DBG */