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authorHenk de Groot <henk.de.groot@hetnet.nl>2009-09-27 11:12:52 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2009-12-11 12:23:10 -0800
commit68c0bdff7ac903421f224e080499c51cd5287f97 (patch)
tree5f5f46e0a2d077c4d039a67d128a15a388dac91f /drivers/staging/wlags49_h2/wl_util.c
parentStaging: rtl8187su: remove unused #include <linux/version.h> (diff)
downloadlinux-dev-68c0bdff7ac903421f224e080499c51cd5287f97.tar.xz
linux-dev-68c0bdff7ac903421f224e080499c51cd5287f97.zip
Staging: wlags49_h2: add Agere driver for HERMES II and HERMES II.5 chipsets
WLAN driver for cards using the HERMES II and HERMES II.5 chipset Based on Agere Systems Linux LKM Wireless Driver Source Code, Version 7.22; complies with Open Source BSD License. The software is a modified version of wl_lkm_722_abg.tar.gz from the Agere Systems website, addapted for Ubuntu 9.04 and modified to fit in the current Linux kernel (2.6.31). Modified for kernel 2.6 by Henk de Groot <pe1dnn@amsat.org> Based on 7.18 version by Andrey Borzenkov <arvidjaar@mail.ru> $Revision: 39 $ Signed-off-by: Henk de Groot <pe1dnn@amsat.org> Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/wlags49_h2/wl_util.c')
-rw-r--r--drivers/staging/wlags49_h2/wl_util.c1604
1 files changed, 1604 insertions, 0 deletions
diff --git a/drivers/staging/wlags49_h2/wl_util.c b/drivers/staging/wlags49_h2/wl_util.c
new file mode 100644
index 000000000000..aba05d29a838
--- /dev/null
+++ b/drivers/staging/wlags49_h2/wl_util.c
@@ -0,0 +1,1604 @@
+/*******************************************************************************
+ * 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 defines misc utility functions.
+ *
+ *------------------------------------------------------------------------------
+ *
+ * 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.
+ *
+ ******************************************************************************/
+
+
+
+
+/*******************************************************************************
+ * VERSION CONTROL INFORMATION
+ *******************************************************************************
+ *
+ * $Author: nico $
+ * $Date: 2004/08/04 12:36:10 $
+ * $Revision: 1.6 $
+ * $Source: /usr/local/cvs/wl_lkm/wireless/wl_util.c,v $
+ *
+ ******************************************************************************/
+
+
+
+
+/*******************************************************************************
+ * include files
+ ******************************************************************************/
+#include <wl_version.h>
+
+#include <linux/kernel.h>
+// #include <linux/sched.h>
+// #include <linux/ptrace.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 <debug.h>
+#include <hcf.h>
+// #include <hcfdef.h>
+
+#include <wl_if.h>
+#include <wl_internal.h>
+#include <wl_util.h>
+#include <wl_wext.h>
+#include <wl_main.h>
+
+
+
+/*******************************************************************************
+ * global variables
+ ******************************************************************************/
+
+/* A matrix which maps channels to frequencies */
+#define MAX_CHAN_FREQ_MAP_ENTRIES 50
+static const long chan_freq_list[][MAX_CHAN_FREQ_MAP_ENTRIES] =
+{
+ {1,2412},
+ {2,2417},
+ {3,2422},
+ {4,2427},
+ {5,2432},
+ {6,2437},
+ {7,2442},
+ {8,2447},
+ {9,2452},
+ {10,2457},
+ {11,2462},
+ {12,2467},
+ {13,2472},
+ {14,2484},
+ {36,5180},
+ {40,5200},
+ {44,5220},
+ {48,5240},
+ {52,5260},
+ {56,5280},
+ {60,5300},
+ {64,5320},
+ {149,5745},
+ {153,5765},
+ {157,5785},
+ {161,5805}
+};
+
+#if DBG
+extern dbg_info_t *DbgInfo;
+#endif /* DBG */
+
+
+
+
+/*******************************************************************************
+ * dbm()
+ *******************************************************************************
+ *
+ * DESCRIPTION:
+ *
+ * Return an energy value in dBm.
+ *
+ * PARAMETERS:
+ *
+ * value - the energy value to be converted
+ *
+ * RETURNS:
+ *
+ * the value in dBm
+ *
+ ******************************************************************************/
+int dbm( int value )
+{
+ /* Truncate the value to be between min and max. */
+ if( value < HCF_MIN_SIGNAL_LEVEL )
+ value = HCF_MIN_SIGNAL_LEVEL;
+
+ if( value > HCF_MAX_SIGNAL_LEVEL )
+ value = HCF_MAX_SIGNAL_LEVEL;
+
+ /* Return the energy value in dBm. */
+ return ( value - HCF_0DBM_OFFSET );
+} // dbm
+/*============================================================================*/
+
+
+
+
+/*******************************************************************************
+ * percent()
+ *******************************************************************************
+ *
+ * DESCRIPTION:
+ *
+ * Return a value as a percentage of min to max.
+ *
+ * PARAMETERS:
+ *
+ * value - the value in question
+ * min - the minimum range value
+ * max - the maximum range value
+ *
+ * RETURNS:
+ *
+ * the percentage value
+ *
+ ******************************************************************************/
+int percent( int value, int min, int max )
+{
+ /* Truncate the value to be between min and max. */
+ if( value < min )
+ value = min;
+
+ if( value > max )
+ value = max;
+
+ /* Return the value as a percentage of min to max. */
+ return ((( value - min ) * 100 ) / ( max - min ));
+} // percent
+/*============================================================================*/
+
+
+
+
+/*******************************************************************************
+ * is_valid_key_string()
+ *******************************************************************************
+ *
+ * DESCRIPTION:
+ *
+ * Checks to determine if the WEP key string is valid
+ *
+ * PARAMETERS:
+ *
+ * s - the string in question
+ *
+ * RETURNS:
+ *
+ * non-zero if the string contains a valid key
+ *
+ ******************************************************************************/
+int is_valid_key_string( char *s )
+{
+ int l;
+ int i;
+ /*------------------------------------------------------------------------*/
+
+
+ l = strlen( s );
+
+ /* 0x followed by 5 or 13 hexadecimal digit pairs is valid */
+ if( s[0] == '0' && ( s[1] == 'x' || s[1] == 'X' )) {
+ if( l == 12 || l == 28 ) {
+ for( i = 2; i < l; i++ ) {
+ if( !isxdigit( s[i] ))
+ return 0;
+ }
+
+ return 1;
+ } else {
+ return 0;
+ }
+ }
+
+ /* string with 0, 5, or 13 characters is valid */
+ else
+ {
+ return( l == 0 || l == 5 || l == 13 );
+ }
+} // is_valid_key_string
+/*============================================================================*/
+
+
+
+
+/*******************************************************************************
+ * hexdigit2int()
+ *******************************************************************************
+ *
+ * DESCRIPTION:
+ *
+ * Converts a hexadecimal digit character to an integer
+ *
+ * PARAMETERS:
+ *
+ * c - the hexadecimal digit character
+ *
+ * RETURNS:
+ *
+ * the converted integer
+ *
+ ******************************************************************************/
+int hexdigit2int( char c )
+{
+ if( c >= '0' && c <= '9' )
+ return c - '0';
+
+ if( c >= 'A' && c <= 'F' )
+ return c - 'A' + 10;
+
+ if( c >= 'a' && c <= 'f' )
+ return c - 'a' + 10;
+
+ return 0;
+} // hexdigit2int
+/*============================================================================*/
+
+
+
+
+/*******************************************************************************
+ * key_string2key()
+ *******************************************************************************
+ *
+ * DESCRIPTION:
+ *
+ * Converts a key_string to a key, Assumes the key_string is validated with
+ * is_valid_key_string().
+ *
+ * PARAMETERS:
+ *
+ * ks - the valid key string
+ * key - a pointer to a KEY_STRUCT where the converted key information will
+ * be stored.
+ *
+ * RETURNS:
+ *
+ * N/A
+ *
+ ******************************************************************************/
+void key_string2key( char *ks, KEY_STRCT *key )
+{
+ int l,i,n;
+ char *p;
+ /*------------------------------------------------------------------------*/
+
+
+ l = strlen( ks );
+
+ /* 0x followed by hexadecimal digit pairs */
+ if( ks[0] == '0' && ( ks[1] == 'x' || ks[1] == 'X' )) {
+ n = 0;
+ p = (char *)key->key;
+
+ for( i = 2; i < l; i+=2 ) {
+ *p++ = ( hexdigit2int( ks[i] ) << 4 ) + hexdigit2int (ks[i+1] );
+ n++;
+ }
+
+ /* Note that endian translation of the length field is not needed here
+ because it's performed in wl_put_ltv() */
+ key->len = n;
+ }
+ /* character string */
+ else
+ {
+ strcpy( (char *)key->key, ks );
+ key->len = l;
+ }
+
+ return;
+} // key_string2key
+/*============================================================================*/
+
+
+
+
+#if DBG
+/*******************************************************************************
+ * DbgHwAddr()
+ *******************************************************************************
+ *
+ * DESCRIPTION:
+ *
+ * Convert a hardware ethernet address to a character string
+ *
+ * PARAMETERS:
+ *
+ * hwAddr - an ethernet address
+ *
+ * RETURNS:
+ *
+ * a pointer to a string representing the ethernet address
+ *
+ ******************************************************************************/
+const char *DbgHwAddr(unsigned char *hwAddr)
+{
+ static char buffer[18];
+ /*------------------------------------------------------------------------*/
+
+
+ sprintf( buffer, "%02X:%02X:%02X:%02X:%02X:%02X",
+ hwAddr[0], hwAddr[1], hwAddr[2], hwAddr[3], hwAddr[4], hwAddr[5] );
+
+ return buffer;
+} // DbgHwAddr
+/*============================================================================*/
+
+#endif /* DBG */
+
+
+
+
+/*******************************************************************************
+ * wl_has_wep()
+ *******************************************************************************
+ *
+ * DESCRIPTION:
+ *
+ * Checks to see if the device supports WEP
+ *
+ * PARAMETERS:
+ *
+ * ifbp - the IFB pointer of the device in question
+ *
+ * RETURNS:
+ *
+ * 1 if WEP is known enabled, else 0
+ *
+ ******************************************************************************/
+int wl_has_wep (IFBP ifbp)
+{
+ CFG_PRIVACY_OPT_IMPLEMENTED_STRCT ltv;
+ int rc, privacy;
+ /*------------------------------------------------------------------------*/
+
+
+ /* This function allows us to distiguish bronze cards from other types, to
+ know if WEP exists. Does not distinguish (because there's no way to)
+ between silver and gold cards. */
+ ltv.len = 2;
+ ltv.typ = CFG_PRIVACY_OPT_IMPLEMENTED;
+
+ rc = hcf_get_info( ifbp, (LTVP) &ltv );
+
+ privacy = CNV_LITTLE_TO_INT( ltv.privacy_opt_implemented );
+
+ //return rc ? 0 : privacy;
+ return 1;
+} // wl_has_wep
+/*============================================================================*/
+
+
+
+
+/*******************************************************************************
+ * wl_hcf_error()
+ *******************************************************************************
+ *
+ * DESCRIPTION:
+ *
+ * Report the type of HCF error message
+ *
+ * PARAMETERS:
+ *
+ * none
+ *
+ * RETURNS:
+ *
+ * A descriptive string indicating the error, quiet otherwise.
+ *
+ ******************************************************************************/
+void wl_hcf_error( struct net_device *dev, int hcfStatus )
+{
+ char buffer[64], *pMsg;
+ /*------------------------------------------------------------------------*/
+
+
+ if( hcfStatus != HCF_SUCCESS ) {
+ switch( hcfStatus ) {
+
+ case HCF_ERR_TIME_OUT:
+
+ pMsg = "Expected adapter event did not occur in expected time";
+ break;
+
+
+ case HCF_ERR_NO_NIC:
+
+ pMsg = "Card not found (ejected unexpectedly)";
+ break;
+
+
+ case HCF_ERR_LEN:
+
+ pMsg = "Command buffer size insufficient";
+ break;
+
+
+ case HCF_ERR_INCOMP_PRI:
+
+ pMsg = "Primary functions are not compatible";
+ break;
+
+
+ case HCF_ERR_INCOMP_FW:
+
+ pMsg = "Primary functions are compatible, "
+ "station/ap functions are not";
+ break;
+
+
+ case HCF_ERR_BUSY:
+
+ pMsg = "Inquire cmd while another Inquire in progress";
+ break;
+
+
+ //case HCF_ERR_SEQ_BUG:
+
+ // pMsg = "Unexpected command completed";
+ // break;
+
+
+ case HCF_ERR_DEFUNCT_AUX:
+
+ pMsg = "Timeout on ack for enable/disable of AUX registers";
+ break;
+
+
+ case HCF_ERR_DEFUNCT_TIMER:
+ pMsg = "Timeout on timer calibration during initialization process";
+ break;
+
+
+ case HCF_ERR_DEFUNCT_TIME_OUT:
+ pMsg = "Timeout on Busy bit drop during BAP setup";
+ break;
+
+
+ case HCF_ERR_DEFUNCT_CMD_SEQ:
+ pMsg = "Hermes and HCF are out of sync";
+ break;
+
+
+ default:
+
+ sprintf( buffer, "Error code %d", hcfStatus );
+ pMsg = buffer;
+ break;
+ }
+
+ printk( KERN_INFO "%s: Wireless, HCF failure: \"%s\"\n",
+ dev->name, pMsg );
+ }
+} // wl_hcf_error
+/*============================================================================*/
+
+
+
+
+/*******************************************************************************
+ * wl_endian_translate_event()
+ *******************************************************************************
+ *
+ * DESCRIPTION:
+ *
+ * Determines what type of data is in the mailbox and performs the proper
+ * endian translation.
+ *
+ * PARAMETERS:
+ *
+ * pLtv - an LTV pointer
+ *
+ * RETURNS:
+ *
+ * N/A
+ *
+ ******************************************************************************/
+void wl_endian_translate_event( ltv_t *pLtv )
+{
+ DBG_FUNC( "wl_endian_translate_event" );
+ DBG_ENTER( DbgInfo );
+
+
+ switch( pLtv->typ ) {
+ case CFG_TALLIES:
+ break;
+
+
+ case CFG_SCAN:
+ {
+ int numAPs;
+ SCAN_RS_STRCT *pAps = (SCAN_RS_STRCT*)&pLtv->u.u8[0];
+
+ numAPs = (hcf_16)(( (size_t)( pLtv->len - 1 ) * 2 ) /
+ (sizeof( SCAN_RS_STRCT )));
+
+ while( numAPs >= 1 ) {
+ numAPs--;
+
+ pAps[numAPs].channel_id =
+ CNV_LITTLE_TO_INT( pAps[numAPs].channel_id );
+
+ pAps[numAPs].noise_level =
+ CNV_LITTLE_TO_INT( pAps[numAPs].noise_level );
+
+ pAps[numAPs].signal_level =
+ CNV_LITTLE_TO_INT( pAps[numAPs].signal_level );
+
+ pAps[numAPs].beacon_interval_time =
+ CNV_LITTLE_TO_INT( pAps[numAPs].beacon_interval_time );
+
+ pAps[numAPs].capability =
+ CNV_LITTLE_TO_INT( pAps[numAPs].capability );
+
+ pAps[numAPs].ssid_len =
+ CNV_LITTLE_TO_INT( pAps[numAPs].ssid_len );
+
+ pAps[numAPs].ssid_val[pAps[numAPs].ssid_len] = 0;
+
+ }
+ }
+ break;
+
+
+ case CFG_ACS_SCAN:
+ {
+ PROBE_RESP *probe_resp = (PROBE_RESP *)pLtv;
+
+ probe_resp->frameControl = CNV_LITTLE_TO_INT( probe_resp->frameControl );
+ probe_resp->durID = CNV_LITTLE_TO_INT( probe_resp->durID );
+ probe_resp->sequence = CNV_LITTLE_TO_INT( probe_resp->sequence );
+ probe_resp->dataLength = CNV_LITTLE_TO_INT( probe_resp->dataLength );
+
+#ifndef WARP
+ probe_resp->lenType = CNV_LITTLE_TO_INT( probe_resp->lenType );
+#endif // WARP
+
+ probe_resp->beaconInterval = CNV_LITTLE_TO_INT( probe_resp->beaconInterval );
+ probe_resp->capability = CNV_LITTLE_TO_INT( probe_resp->capability );
+ probe_resp->flags = CNV_LITTLE_TO_INT( probe_resp->flags );
+ }
+ break;
+
+
+ case CFG_LINK_STAT:
+#define ls ((LINK_STATUS_STRCT *)pLtv)
+ ls->linkStatus = CNV_LITTLE_TO_INT( ls->linkStatus );
+ break;
+#undef ls
+
+ case CFG_ASSOC_STAT:
+ {
+ ASSOC_STATUS_STRCT *pAs = (ASSOC_STATUS_STRCT *)pLtv;
+
+ pAs->assocStatus = CNV_LITTLE_TO_INT( pAs->assocStatus );
+ }
+ break;
+
+
+ case CFG_SECURITY_STAT:
+ {
+ SECURITY_STATUS_STRCT *pSs = (SECURITY_STATUS_STRCT *)pLtv;
+
+ pSs->securityStatus = CNV_LITTLE_TO_INT( pSs->securityStatus );
+ pSs->reason = CNV_LITTLE_TO_INT( pSs->reason );
+ }
+ break;
+
+
+ case CFG_WMP:
+ break;
+
+
+ case CFG_NULL:
+ break;
+
+
+ default:
+ break;
+ }
+
+ DBG_LEAVE( DbgInfo );
+ return;
+} // wl_endian_translate_event
+/*============================================================================*/
+
+
+/*******************************************************************************
+ * msf_assert()
+ *******************************************************************************
+ *
+ * DESCRIPTION:
+ *
+ * Print statement used to display asserts from within the HCF. Only called
+ * when asserts in the HCF are turned on. See hcfcfg.h for more information.
+ *
+ * PARAMETERS:
+ *
+ * file_namep - the filename in which the assert occurred.
+ * line_number - the line number on which the assert occurred.
+ * trace - a comment associated with the assert.
+ * qual - return code or other value related to the assert
+ *
+ * RETURNS:
+ *
+ * N/A
+ *
+ ******************************************************************************/
+void msf_assert( unsigned int line_number, hcf_16 trace, hcf_32 qual )
+{
+ DBG_PRINT( "HCF ASSERT: Line %d, VAL: 0x%.8x\n", line_number, /*;?*/(u32)qual );
+} // msf_assert
+/*============================================================================*/
+
+
+
+
+/*******************************************************************************
+ * wl_parse_ds_ie()
+ *******************************************************************************
+ *
+ * DESCRIPTION:
+ *
+ * This function parses the Direct Sequence Parameter Set IE, used to
+ * determine channel/frequency information.
+ *
+ * PARAMETERS:
+ *
+ * probe_rsp - a pointer to a PROBE_RESP structure containing the probe
+ * response.
+ *
+ * RETURNS:
+ *
+ * The channel on which the BSS represented by this probe response is
+ * transmitting.
+ *
+ ******************************************************************************/
+hcf_8 wl_parse_ds_ie( PROBE_RESP *probe_rsp )
+{
+ int i;
+ int ie_length = 0;
+ hcf_8 *buf;
+ hcf_8 buf_size;
+ /*------------------------------------------------------------------------*/
+
+
+ if( probe_rsp == NULL ) {
+ return 0;
+ }
+
+ buf = probe_rsp->rawData;
+ buf_size = sizeof( probe_rsp->rawData );
+
+
+ for( i = 0; i < buf_size; i++ ) {
+ if( buf[i] == DS_INFO_ELEM ) {
+ /* Increment by 1 to get the length, and test it; in a DS element,
+ length should always be 1 */
+ i++;
+ ie_length = buf[i];
+
+ if( buf[i] == 1 ) {
+ /* Get the channel information */
+ i++;
+ return buf[i];
+ }
+ }
+ }
+
+ /* If we get here, we didn't find a DS-IE, which is strange */
+ return 0;
+} // wl_parse_ds_ie
+
+
+/*******************************************************************************
+ * wl_parse_wpa_ie()
+ *******************************************************************************
+ *
+ * DESCRIPTION:
+ *
+ * This function parses the Probe Response for a valid WPA-IE.
+ *
+ * PARAMETERS:
+ *
+ * probe_rsp - a pointer to a PROBE_RESP structure containing the probe
+ * response
+ * length - a pointer to an hcf_16 in which the size of the WPA-IE will
+ * be stored (if found).
+ *
+ * RETURNS:
+ *
+ * A pointer to the location in the probe response buffer where a valid
+ * WPA-IE lives. The length of this IE is written back to the 'length'
+ * argument passed to the function.
+ *
+ ******************************************************************************/
+hcf_8 * wl_parse_wpa_ie( PROBE_RESP *probe_rsp, hcf_16 *length )
+{
+ int i;
+ int ie_length = 0;
+ hcf_8 *buf;
+ hcf_8 buf_size;
+ hcf_8 wpa_oui[] = WPA_OUI_TYPE;
+ /*------------------------------------------------------------------------*/
+
+
+ if( probe_rsp == NULL || length == NULL ) {
+ return NULL;
+ }
+
+ buf = probe_rsp->rawData;
+ buf_size = sizeof( probe_rsp->rawData );
+ *length = 0;
+
+
+ for( i = 0; i < buf_size; i++ ) {
+ if( buf[i] == GENERIC_INFO_ELEM ) {
+ /* Increment by one to get the IE length */
+ i++;
+ ie_length = probe_rsp->rawData[i];
+
+ /* Increment by one to point to the IE payload */
+ i++;
+
+ /* Does the IE contain a WPA OUI? If not, it's a proprietary IE */
+ if( memcmp( &buf[i], &wpa_oui, WPA_SELECTOR_LEN ) == 0 ) {
+ /* Pass back length and return a pointer to the WPA-IE */
+ /* NOTE: Length contained in the WPA-IE is only the length of
+ the payload. The entire WPA-IE, including the IE identifier
+ and the length, is 2 bytes larger */
+ *length = ie_length + 2;
+
+ /* Back up the pointer 2 bytes to include the IE identifier and
+ the length in the buffer returned */
+ i -= 2;
+ return &buf[i];
+ }
+
+ /* Increment past this non-WPA IE and continue looking */
+ i += ( ie_length - 1 );
+ }
+ }
+
+ /* If we're here, we didn't find a WPA-IE in the buffer */
+ return NULL;
+} // wl_parse_wpa_ie
+
+
+/*******************************************************************************
+ * wl_print_wpa_ie()
+ *******************************************************************************
+ *
+ * DESCRIPTION:
+ *
+ * Function used to take a WPA Information Element (WPA-IE) buffer and
+ * display it in a readable format.
+ *
+ * PARAMETERS:
+ *
+ * buffer - the byte buffer containing the WPA-IE
+ * length - the length of the above buffer
+ *
+ * RETURNS:
+ *
+ * A pointer to the formatted WPA-IE string. Note that the format used is
+ * byte-by-byte printing as %02x hex values with no spaces. This is
+ * required for proper operation with some WPA supplicants.
+ *
+ ******************************************************************************/
+hcf_8 * wl_print_wpa_ie( hcf_8 *buffer, int length )
+{
+ int count;
+ int rows;
+ int remainder;
+ int rowsize = 4;
+ hcf_8 row_buf[64];
+ static hcf_8 output[512];
+ /*------------------------------------------------------------------------*/
+
+
+ memset( output, 0, sizeof( output ));
+ memset( row_buf, 0, sizeof( row_buf ));
+
+
+ /* Determine how many rows will be needed, and the remainder */
+ rows = length / rowsize;
+ remainder = length % rowsize;
+
+
+ /* Format the rows */
+ for( count = 0; count < rows; count++ ) {
+ sprintf( row_buf, "%02x%02x%02x%02x",
+ buffer[count*rowsize], buffer[count*rowsize+1],
+ buffer[count*rowsize+2], buffer[count*rowsize+3]);
+ strcat( output, row_buf );
+ }
+
+ memset( row_buf, 0, sizeof( row_buf ));
+
+
+ /* Format the remainder */
+ for( count = 0; count < remainder; count++ ) {
+ sprintf( row_buf, "%02x", buffer[(rows*rowsize)+count]);
+ strcat( output, row_buf );
+ }
+
+ return output;
+} // wl_print_wpa_ie
+/*============================================================================*/
+
+
+
+
+/*******************************************************************************
+ * wl_is_a_valid_chan()
+ *******************************************************************************
+ *
+ * DESCRIPTION:
+ *
+ * Checks if a given channel is valid
+ *
+ * PARAMETERS:
+ *
+ * channel - the channel
+ *
+ * RETURNS:
+ *
+ * 1 if TRUE
+ * 0 if FALSE
+ *
+ ******************************************************************************/
+int wl_is_a_valid_chan( int channel )
+{
+ int i;
+ /*------------------------------------------------------------------------*/
+
+
+ /* Strip out the high bit set by the FW for 802.11a channels */
+ if( channel & 0x100 ) {
+ channel = channel & 0x0FF;
+ }
+
+ /* Iterate through the matrix and retrieve the frequency */
+ for( i = 0; i < MAX_CHAN_FREQ_MAP_ENTRIES; i++ ) {
+ if( chan_freq_list[i][0] == channel ) {
+ return 1;
+ }
+ }
+
+ return 0;
+} // wl_is_a_valid_chan
+/*============================================================================*/
+
+
+
+
+/*******************************************************************************
+ * wl_get_chan_from_freq()
+ *******************************************************************************
+ *
+ * DESCRIPTION:
+ *
+ * Checks if a given frequency is valid
+ *
+ * PARAMETERS:
+ *
+ * freq - the frequency
+ *
+ * RETURNS:
+ *
+ * 1 if TRUE
+ * 0 if FALSE
+ *
+ ******************************************************************************/
+int wl_is_a_valid_freq( long frequency )
+{
+ int i;
+ /*------------------------------------------------------------------------*/
+
+
+ /* Iterate through the matrix and retrieve the channel */
+ for( i = 0; i < MAX_CHAN_FREQ_MAP_ENTRIES; i++ ) {
+ if( chan_freq_list[i][1] == frequency ) {
+ return 1;
+ }
+ }
+
+ return 0;
+} // wl_is_a_valid_freq
+/*============================================================================*/
+
+
+
+
+/*******************************************************************************
+ * wl_get_freq_from_chan()
+ *******************************************************************************
+ *
+ * DESCRIPTION:
+ *
+ * Function used to look up the frequency for a given channel on which the
+ * adapter is Tx/Rx.
+ *
+ * PARAMETERS:
+ *
+ * channel - the channel
+ *
+ * RETURNS:
+ *
+ * The corresponding frequency
+ *
+ ******************************************************************************/
+long wl_get_freq_from_chan( int channel )
+{
+ int i;
+ /*------------------------------------------------------------------------*/
+
+
+ /* Strip out the high bit set by the FW for 802.11a channels */
+ if( channel & 0x100 ) {
+ channel = channel & 0x0FF;
+ }
+
+ /* Iterate through the matrix and retrieve the frequency */
+ for( i = 0; i < MAX_CHAN_FREQ_MAP_ENTRIES; i++ ) {
+ if( chan_freq_list[i][0] == channel ) {
+ return chan_freq_list[i][1];
+ }
+ }
+
+ return 0;
+} // wl_get_freq_from_chan
+/*============================================================================*/
+
+
+
+
+/*******************************************************************************
+ * wl_get_chan_from_freq()
+ *******************************************************************************
+ *
+ * DESCRIPTION:
+ *
+ * Function used to look up the channel for a given frequency on which the
+ * adapter is Tx/Rx.
+ *
+ * PARAMETERS:
+ *
+ * frequency - the frequency
+ *
+ * RETURNS:
+ *
+ * The corresponding channel
+ *
+ ******************************************************************************/
+int wl_get_chan_from_freq( long frequency )
+{
+ int i;
+ /*------------------------------------------------------------------------*/
+
+
+ /* Iterate through the matrix and retrieve the channel */
+ for( i = 0; i < MAX_CHAN_FREQ_MAP_ENTRIES; i++ ) {
+ if( chan_freq_list[i][1] == frequency ) {
+ return chan_freq_list[i][0];
+ }
+ }
+
+ return 0;
+} // wl_get_chan_from_freq
+/*============================================================================*/
+
+
+
+
+/*******************************************************************************
+ * wl_process_link_status()
+ *******************************************************************************
+ *
+ * DESCRIPTION:
+ *
+ * Process the link status message signaled by the device.
+ *
+ * PARAMETERS:
+ *
+ * lp - a pointer to the device's private structure
+ *
+ * RETURNS:
+ *
+ * N/A
+ *
+ ******************************************************************************/
+void wl_process_link_status( struct wl_private *lp )
+{
+ hcf_16 link_stat;
+ /*------------------------------------------------------------------------*/
+
+ DBG_FUNC( "wl_process_link_status" );
+ DBG_ENTER( DbgInfo );
+
+ if( lp != NULL ) {
+ //link_stat = lp->hcfCtx.IFB_DSLinkStat & CFG_LINK_STAT_FW;
+ link_stat = lp->hcfCtx.IFB_LinkStat & CFG_LINK_STAT_FW;
+ switch( link_stat ) {
+ case 1:
+ DBG_TRACE( DbgInfo, "Link Status : Connected\n" );
+ wl_wext_event_ap( lp->dev );
+ break;
+ case 2:
+ DBG_TRACE( DbgInfo, "Link Status : Disconnected\n" );
+ break;
+ case 3:
+ DBG_TRACE( DbgInfo, "Link Status : Access Point Change\n" );
+ break;
+ case 4:
+ DBG_TRACE( DbgInfo, "Link Status : Access Point Out of Range\n" );
+ break;
+ case 5:
+ DBG_TRACE( DbgInfo, "Link Status : Access Point In Range\n" );
+ break;
+ default:
+ DBG_TRACE( DbgInfo, "Link Status : UNKNOWN (0x%04x)\n", link_stat );
+ break;
+ }
+ }
+ DBG_LEAVE( DbgInfo );
+ return;
+} // wl_process_link_status
+/*============================================================================*/
+
+
+
+
+/*******************************************************************************
+ * wl_process_probe_response()
+ *******************************************************************************
+ *
+ * DESCRIPTION:
+ *
+ * Process the probe responses retunred by the device as a result of an
+ * active scan.
+ *
+ * PARAMETERS:
+ *
+ * lp - a pointer to the device's private structure
+ *
+ * RETURNS:
+ *
+ * N/A
+ *
+ ******************************************************************************/
+void wl_process_probe_response( struct wl_private *lp )
+{
+ PROBE_RESP *probe_rsp;
+ hcf_8 *wpa_ie = NULL;
+ hcf_16 wpa_ie_len = 0;
+ /*------------------------------------------------------------------------*/
+
+
+ DBG_FUNC( "wl_process_probe_response" );
+ DBG_ENTER( DbgInfo );
+
+
+ if( lp != NULL ) {
+ probe_rsp = (PROBE_RESP *)&lp->ProbeResp;
+
+ wl_endian_translate_event( (ltv_t *)probe_rsp );
+
+ DBG_TRACE( DbgInfo, "(%s) =========================\n", lp->dev->name );
+ DBG_TRACE( DbgInfo, "(%s) length : 0x%04x.\n", lp->dev->name,
+ probe_rsp->length );
+
+ if( probe_rsp->length > 1 ) {
+ DBG_TRACE( DbgInfo, "(%s) infoType : 0x%04x.\n", lp->dev->name,
+ probe_rsp->infoType );
+
+ DBG_TRACE( DbgInfo, "(%s) signal : 0x%02x.\n", lp->dev->name,
+ probe_rsp->signal );
+
+ DBG_TRACE( DbgInfo, "(%s) silence : 0x%02x.\n", lp->dev->name,
+ probe_rsp->silence );
+
+ DBG_TRACE( DbgInfo, "(%s) rxFlow : 0x%02x.\n", lp->dev->name,
+ probe_rsp->rxFlow );
+
+ DBG_TRACE( DbgInfo, "(%s) rate : 0x%02x.\n", lp->dev->name,
+ probe_rsp->rate );
+
+ DBG_TRACE( DbgInfo, "(%s) frame cntl : 0x%04x.\n", lp->dev->name,
+ probe_rsp->frameControl );
+
+ DBG_TRACE( DbgInfo, "(%s) durID : 0x%04x.\n", lp->dev->name,
+ probe_rsp->durID );
+
+ DBG_TRACE( DbgInfo, "(%s) address1 : %s\n", lp->dev->name,
+ DbgHwAddr( probe_rsp->address1 ));
+
+ DBG_TRACE( DbgInfo, "(%s) address2 : %s\n", lp->dev->name,
+ DbgHwAddr( probe_rsp->address2 ));
+
+ DBG_TRACE( DbgInfo, "(%s) BSSID : %s\n", lp->dev->name,
+ DbgHwAddr( probe_rsp->BSSID ));
+
+ DBG_TRACE( DbgInfo, "(%s) sequence : 0x%04x.\n", lp->dev->name,
+ probe_rsp->sequence );
+
+ DBG_TRACE( DbgInfo, "(%s) address4 : %s\n", lp->dev->name,
+ DbgHwAddr( probe_rsp->address4 ));
+
+ DBG_TRACE( DbgInfo, "(%s) datalength : 0x%04x.\n", lp->dev->name,
+ probe_rsp->dataLength );
+
+ DBG_TRACE( DbgInfo, "(%s) DA : %s\n", lp->dev->name,
+ DbgHwAddr( probe_rsp->DA ));
+
+ DBG_TRACE( DbgInfo, "(%s) SA : %s\n", lp->dev->name,
+ DbgHwAddr( probe_rsp->SA ));
+
+#ifdef WARP
+
+ DBG_TRACE( DbgInfo, "(%s) channel : %d\n", lp->dev->name,
+ probe_rsp->channel );
+
+ DBG_TRACE( DbgInfo, "(%s) band : %d\n", lp->dev->name,
+ probe_rsp->band );
+#else
+ DBG_TRACE( DbgInfo, "(%s) lenType : 0x%04x.\n", lp->dev->name,
+ probe_rsp->lenType );
+#endif // WARP
+
+ DBG_TRACE( DbgInfo, "(%s) timeStamp : %d.%d.%d.%d.%d.%d.%d.%d\n",
+ lp->dev->name,
+ probe_rsp->timeStamp[0],
+ probe_rsp->timeStamp[1],
+ probe_rsp->timeStamp[2],
+ probe_rsp->timeStamp[3],
+ probe_rsp->timeStamp[4],
+ probe_rsp->timeStamp[5],
+ probe_rsp->timeStamp[6],
+ probe_rsp->timeStamp[7]);
+
+ DBG_TRACE( DbgInfo, "(%s) beaconInt : 0x%04x.\n", lp->dev->name,
+ probe_rsp->beaconInterval );
+
+ DBG_TRACE( DbgInfo, "(%s) capability : 0x%04x.\n", lp->dev->name,
+ probe_rsp->capability );
+
+ DBG_TRACE( DbgInfo, "(%s) SSID len : 0x%04x.\n", lp->dev->name,
+ probe_rsp->rawData[1] );
+
+
+ if( probe_rsp->rawData[1] > 0 ) {
+ char ssid[HCF_MAX_NAME_LEN];
+
+ memset( ssid, 0, sizeof( ssid ));
+ strncpy( ssid, &probe_rsp->rawData[2],
+ probe_rsp->rawData[1] );
+
+ DBG_TRACE( DbgInfo, "(%s) SSID : %s\n",
+ lp->dev->name, ssid );
+ }
+
+
+ /* Parse out the WPA-IE, if one exists */
+ wpa_ie = wl_parse_wpa_ie( probe_rsp, &wpa_ie_len );
+ if( wpa_ie != NULL ) {
+ DBG_TRACE( DbgInfo, "(%s) WPA-IE : %s\n",
+ lp->dev->name, wl_print_wpa_ie( wpa_ie, wpa_ie_len ));
+ }
+
+ DBG_TRACE( DbgInfo, "(%s) flags : 0x%04x.\n",
+ lp->dev->name, probe_rsp->flags );
+ }
+
+ DBG_TRACE( DbgInfo, "\n" );
+
+
+ /* If probe response length is 1, then the scan is complete */
+ if( probe_rsp->length == 1 ) {
+ DBG_TRACE( DbgInfo, "SCAN COMPLETE\n" );
+ lp->probe_results.num_aps = lp->probe_num_aps;
+ lp->probe_results.scan_complete = TRUE;
+
+ /* Reset the counter for the next scan request */
+ lp->probe_num_aps = 0;
+
+ /* Send a wireless extensions event that the scan completed */
+ wl_wext_event_scan_complete( lp->dev );
+ } else {
+ /* Only copy to the table if the entry is unique; APs sometimes
+ respond more than once to a probe */
+ if( lp->probe_num_aps == 0 ) {
+ /* Copy the info to the ScanResult structure in the private
+ adapter struct */
+ memcpy( &( lp->probe_results.ProbeTable[lp->probe_num_aps] ),
+ probe_rsp, sizeof( PROBE_RESP ));
+
+ /* Increment the number of APs detected */
+ lp->probe_num_aps++;
+ } else {
+ int count;
+ int unique = 1;
+
+ for( count = 0; count < lp->probe_num_aps; count++ ) {
+ if( memcmp( &( probe_rsp->BSSID ),
+ lp->probe_results.ProbeTable[count].BSSID,
+ ETH_ALEN ) == 0 ) {
+ unique = 0;
+ }
+ }
+
+ if( unique ) {
+ /* Copy the info to the ScanResult structure in the
+ private adapter struct. Only copy if there's room in the
+ table */
+ if( lp->probe_num_aps < MAX_NAPS )
+ {
+ memcpy( &( lp->probe_results.ProbeTable[lp->probe_num_aps] ),
+ probe_rsp, sizeof( PROBE_RESP ));
+ }
+ else
+ {
+ DBG_WARNING( DbgInfo, "Num of scan results exceeds storage, truncating\n" );
+ }
+
+ /* Increment the number of APs detected. Note I do this
+ here even when I don't copy the probe response to the
+ buffer in order to detect the overflow condition */
+ lp->probe_num_aps++;
+ }
+ }
+ }
+ }
+
+ DBG_LEAVE( DbgInfo );
+ return;
+} // wl_process_probe_response
+/*============================================================================*/
+
+
+
+
+/*******************************************************************************
+ * wl_process_updated_record()
+ *******************************************************************************
+ *
+ * DESCRIPTION:
+ *
+ * Process the updated information record message signaled by the device.
+ *
+ * PARAMETERS:
+ *
+ * lp - a pointer to the device's private structure
+ *
+ * RETURNS:
+ *
+ * N/A
+ *
+ ******************************************************************************/
+void wl_process_updated_record( struct wl_private *lp )
+{
+ DBG_FUNC( "wl_process_updated_record" );
+ DBG_ENTER( DbgInfo );
+
+
+ if( lp != NULL ) {
+ lp->updatedRecord.u.u16[0] = CNV_LITTLE_TO_INT( lp->updatedRecord.u.u16[0] );
+
+ switch( lp->updatedRecord.u.u16[0] ) {
+ case CFG_CUR_COUNTRY_INFO:
+ DBG_TRACE( DbgInfo, "Updated Record: CFG_CUR_COUNTRY_INFO\n" );
+ wl_connect( lp );
+ break;
+
+ case CFG_PORT_STAT:
+ DBG_TRACE( DbgInfo, "Updated Record: WAIT_FOR_CONNECT (0xFD40)\n" );
+ //wl_connect( lp );
+ break;
+
+ default:
+ DBG_TRACE( DbgInfo, "UNKNOWN: 0x%04x\n",
+ lp->updatedRecord.u.u16[0] );
+ }
+ }
+
+ DBG_LEAVE( DbgInfo );
+ return;
+} // wl_process_updated_record
+/*============================================================================*/
+
+
+
+
+/*******************************************************************************
+ * wl_process_assoc_status()
+ *******************************************************************************
+ *
+ * DESCRIPTION:
+ *
+ * Process the association status event signaled by the device.
+ *
+ * PARAMETERS:
+ *
+ * lp - a pointer to the device's private structure
+ *
+ * RETURNS:
+ *
+ * N/A
+ *
+ ******************************************************************************/
+void wl_process_assoc_status( struct wl_private *lp )
+{
+ ASSOC_STATUS_STRCT *assoc_stat;
+ /*------------------------------------------------------------------------*/
+
+
+ DBG_FUNC( "wl_process_assoc_status" );
+ DBG_ENTER( DbgInfo );
+
+
+ if( lp != NULL ) {
+ assoc_stat = (ASSOC_STATUS_STRCT *)&lp->assoc_stat;
+
+ wl_endian_translate_event( (ltv_t *)assoc_stat );
+
+ switch( assoc_stat->assocStatus ) {
+ case 1:
+ DBG_TRACE( DbgInfo, "Association Status : STA Associated\n" );
+ break;
+
+ case 2:
+ DBG_TRACE( DbgInfo, "Association Status : STA Reassociated\n" );
+ break;
+
+ case 3:
+ DBG_TRACE( DbgInfo, "Association Status : STA Disassociated\n" );
+ break;
+
+ default:
+ DBG_TRACE( DbgInfo, "Association Status : UNKNOWN (0x%04x)\n",
+ assoc_stat->assocStatus );
+ break;
+ }
+
+ DBG_TRACE( DbgInfo, "STA Address : %s\n",
+ DbgHwAddr( assoc_stat->staAddr ));
+
+ if(( assoc_stat->assocStatus == 2 ) && ( assoc_stat->len == 8 )) {
+ DBG_TRACE( DbgInfo, "Old AP Address : %s\n",
+ DbgHwAddr( assoc_stat->oldApAddr ));
+ }
+ }
+
+ DBG_LEAVE( DbgInfo );
+ return;
+} // wl_process_assoc_status
+/*============================================================================*/
+
+
+
+
+/*******************************************************************************
+ * wl_process_security_status()
+ *******************************************************************************
+ *
+ * DESCRIPTION:
+ *
+ * Process the security status message signaled by the device.
+ *
+ * PARAMETERS:
+ *
+ * lp - a pointer to the device's private structure
+ *
+ * RETURNS:
+ *
+ * N/A
+ *
+ ******************************************************************************/
+void wl_process_security_status( struct wl_private *lp )
+{
+ SECURITY_STATUS_STRCT *sec_stat;
+ /*------------------------------------------------------------------------*/
+
+
+ DBG_FUNC( "wl_process_security_status" );
+ DBG_ENTER( DbgInfo );
+
+
+ if( lp != NULL ) {
+ sec_stat = (SECURITY_STATUS_STRCT *)&lp->sec_stat;
+
+ wl_endian_translate_event( (ltv_t *)sec_stat );
+
+ switch( sec_stat->securityStatus ) {
+ case 1:
+ DBG_TRACE( DbgInfo, "Security Status : Dissassociate [AP]\n" );
+ break;
+
+ case 2:
+ DBG_TRACE( DbgInfo, "Security Status : Deauthenticate [AP]\n" );
+ break;
+
+ case 3:
+ DBG_TRACE( DbgInfo, "Security Status : Authenticate Fail [STA] or [AP]\n" );
+ break;
+
+ case 4:
+ DBG_TRACE( DbgInfo, "Security Status : MIC Fail\n" );
+ break;
+
+ case 5:
+ DBG_TRACE( DbgInfo, "Security Status : Associate Fail\n" );
+ break;
+
+ default:
+ DBG_TRACE( DbgInfo, "Security Status : UNKNOWN (0x%04x)\n",
+ sec_stat->securityStatus );
+ break;
+ }
+
+ DBG_TRACE( DbgInfo, "STA Address : %s\n",
+ DbgHwAddr( sec_stat->staAddr ));
+ DBG_TRACE( DbgInfo, "Reason : 0x%04x \n", sec_stat->reason );
+
+ }
+
+ DBG_LEAVE( DbgInfo );
+ return;
+} // wl_process_security_status
+/*============================================================================*/
+
+int wl_get_tallies(struct wl_private *lp,
+ CFG_HERMES_TALLIES_STRCT *tallies)
+{
+ int ret = 0;
+ int status;
+ CFG_HERMES_TALLIES_STRCT *pTallies;
+
+ DBG_FUNC( "wl_get_tallies" );
+ DBG_ENTER(DbgInfo);
+
+ /* Get the current tallies from the adapter */
+ lp->ltvRecord.len = 1 + HCF_TOT_TAL_CNT * sizeof(hcf_16);
+ lp->ltvRecord.typ = CFG_TALLIES;
+
+ status = hcf_get_info(&(lp->hcfCtx), (LTVP)&(lp->ltvRecord));
+
+ if( status == HCF_SUCCESS ) {
+ pTallies = (CFG_HERMES_TALLIES_STRCT *)&(lp->ltvRecord.u.u32);
+ memcpy(tallies, pTallies, sizeof(*tallies));
+ DBG_TRACE( DbgInfo, "Get tallies okay, dixe: %d\n", sizeof(*tallies) );
+ } else {
+ DBG_TRACE( DbgInfo, "Get tallies failed\n" );
+ ret = -EFAULT;
+ }
+
+ DBG_LEAVE( DbgInfo );
+
+ return ret;
+}
+
+/*******************************************************************************
+ * wl_atoi()
+ *******************************************************************************
+ *
+ * DESCRIPTION:
+ *
+ * Believe it or not, we need our own implementation of atoi in the kernel.
+ *
+ * PARAMETERS:
+ *
+ * string - the ASCII string to convert to an integer
+ *
+ * RETURNS:
+ *
+ * unsigned integer
+ *
+ ******************************************************************************/
+unsigned int wl_atoi( char *string )
+{
+unsigned int base = 10; //default to decimal
+unsigned int value = 0;
+unsigned int c;
+int i = strlen( string );
+
+ if ( i > 2 && string[0] == '0' && ( string[1] | ('X'^'x') ) == 'x' ) {
+ base = 16;
+ string +=2;
+ }
+ while ( ( c = *string++ ) != '\0' ) {
+ if ( value > UINT_MAX / base ) { //test for overrun
+ DBG_FUNC( "wl_atoi" ); //don't overload the log file with good messages
+ DBG_ENTER( DbgInfo );
+ DBG_ERROR( DbgInfo, "string \"%s\", lenght exceeds expectations\n", string );
+ printk( "<1>string \"%s\", lenght exceeds expectations\n", string );
+ DBG_LEAVE( DbgInfo );
+ break;
+ }
+ c -= '0';
+ if ( 0 <= c && c <= 9 ) value = base * value + c;
+ else if ( base == 16 ) {
+ c += '0';
+ c |= 'A'^'a';
+ c = c - 'a'+ 10;
+ if ( 10 <= c && c <= 15 ) value = base * value + c;
+ }
+ }
+ return value;
+} // wl_atoi
+