Re: [Madwifi-users] RE: Problem with loading the ath_pci for AR5212 based NIC
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Re: [Madwifi-users] RE: Problem with loading the ath_pci for AR5212 based NIC
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From: Neilson H. <ne...@pr...> - 2004-07-15 23:06:57
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WOW !!! :-O
Atheros will probably indent your death ASAP ! :-P
----- Original Message -----
From: "wireless user" <wrtr@Plectere.com>
To: <mad...@li...>
Sent: Thursday, July 15, 2004 1:06 PM
Subject: [Madwifi-users] RE: Problem with loading the ath_pci for AR5212 based NIC
> The program code below will change the regulatory domain/country code
> for any 521[123] based product. You'll have to be root (of course) and know
> the physical address in the card's BAR0 ("lspci" will give this). The arguments
> are "programname physical_address new_domain". I'm not sure what madWiFi is
> looking for, but useful values include: 0 (wildcarded), 0x10 (FCC), 0x20 (DOC),
> 0x30 (ETSI), 0x31 (Spain), 0x32 (France), 0x40 (MKK-Japan), and 0xFF (debug).
> Most "universal/worldwide" cards use zero as the value, some 0xFF.
>
> NOTE: The included copyright is not mine.
>
> Does this count as overwrite^H^H^H^H^Hriding it?
>
> Paul Shupak
>
> P.S. This came about because of my aggravation with a D-Link DWL-AG530.
>
> P.P.S. D-Link intends for 0x12 to mean FCC minus 5.15-5.25 (i.e. no channels
> less than 52 for 802.11a): I don't know if this is "standard" or not; Most
> of the values I've gotten from the SNMP mib for 802.11. I doubt the card
> violates ERP for that range, but the rules are different for each of the
> three 802.11 ranges (i.e. 5.15-5.25GHz, 5.25-5.35GHz & 5.725-5.85GHz).
>
> >Message: 3
> >From: Sam Leffler <sa...@er...>
> >Organization: Errno Consulting
> >To: "Neilson Henriques" <ne...@pr...>
> >Subject: Re: [Madwifi-users] RE: Problem with loading the ath_pci for AR5212 bas
> >ed NIC
> >Date: Wed, 14 Jul 2004 17:27:19 -0700
> >Cc: <mad...@li...>
> >
> >On Wednesday 14 July 2004 05:13 pm, Neilson Henriques wrote:
> >> ath%d: unable to collect channel list from hal
> >> ath%d: possible regdomain 18 countrycode 0
> >>
> >> Thats what I got ...
> >>
> >> My DWL-AG530 was purchased in USA if this
> >> information can be relevant ... :-)
> >
> >Hmm, 18 is a new regulatory domain and not in the tables. I'll try to fix
> >this quickly. Sure would be easier if you could just override it... :)
> >
> > Sam
>
> --------------------------------------------------------------------------------
> /*
> * This program is derived from code bearing the following Copyright(s)
> */
> /* -*- linux-c -*-
> * _ _ ____ __ _ ___ ____ ____ __ _ _ _ _ |
> * . \/ |--| | \| | |--< [__] | \| | _X_ | s e c u r e s y s t e m s
> *
> * .vt|ar5k - PCI/CardBus 802.11a WirelessLAN driver for Atheros AR5k chipsets
> *
> * Copyright (c) 2002, .vantronix | secure systems
> * and Reyk Floeter <re...@va...>
> *
> * 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.
> *
> * You should have received a copy of the GNU General Public License
> * along with this program ; if not, write to the Free Software
> * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
> */
>
> #include <sys/mman.h>
> #include <stdio.h>
> #include <unistd.h>
> #include <fcntl.h>
>
> #define AR5K_PCICFG 0x4010
> #define AR5K_PCICFG_EEAE 0x00000001
> #define AR5K_PCICFG_CLKRUNEN 0x00000004
> #define AR5K_PCICFG_LED_PEND 0x00000020
> #define AR5K_PCICFG_LED_ACT 0x00000040
> #define AR5K_PCICFG_SL_INTEN 0x00000800
> #define AR5K_PCICFG_BCTL 0x00001000
> #define AR5K_PCICFG_SPWR_DN 0x00010000
>
> /* EEPROM Registers in the MAC */
> #define AR5211_EEPROM_ADDR 0x6000
> #define AR5211_EEPROM_DATA 0x6004
> #define AR5211_EEPROM_COMD 0x6008
> #define AR5211_EEPROM_COMD_READ 0x0001
> #define AR5211_EEPROM_COMD_WRITE 0x0002
> #define AR5211_EEPROM_COMD_RESET 0x0003
> #define AR5211_EEPROM_STATUS 0x600C
> #define AR5211_EEPROM_STAT_RDERR 0x0001
> #define AR5211_EEPROM_STAT_RDDONE 0x0002
> #define AR5211_EEPROM_STAT_WRERR 0x0003
> #define AR5211_EEPROM_STAT_WRDONE 0x0004
> #define AR5211_EEPROM_CONF 0x6010
>
> #define VT_WLAN_IN32(a) (*((volatile unsigned long int *)(mem + (a))))
> #define VT_WLAN_OUT32(v,a) (*((volatile unsigned long int *)(mem + (a))) = (v))
>
> int
> vt_ar5211_eeprom_read( unsigned char *mem,
> unsigned long int offset,
> unsigned short int *data )
> {
> int timeout = 10000 ;
> unsigned long int status ;
>
> VT_WLAN_OUT32( 0, AR5211_EEPROM_CONF ),
> usleep( 5 ) ;
>
> /** enable eeprom read access */
> VT_WLAN_OUT32( VT_WLAN_IN32(AR5211_EEPROM_COMD)
> | AR5211_EEPROM_COMD_RESET, AR5211_EEPROM_COMD) ;
> usleep( 5 ) ;
>
> /** set address */
> VT_WLAN_OUT32( (unsigned char) offset, AR5211_EEPROM_ADDR) ;
> usleep( 5 ) ;
>
> VT_WLAN_OUT32( VT_WLAN_IN32(AR5211_EEPROM_COMD)
> | AR5211_EEPROM_COMD_READ, AR5211_EEPROM_COMD) ;
>
> while (timeout > 0) {
> usleep(1) ;
> status = VT_WLAN_IN32(AR5211_EEPROM_STATUS) ;
> if (status & AR5211_EEPROM_STAT_RDDONE) {
> if (status & AR5211_EEPROM_STAT_RDERR) {
> (void) fputs( "eeprom read access failed!\n",
> stderr ) ;
> return 1 ;
> }
> status = VT_WLAN_IN32(AR5211_EEPROM_DATA) ;
> *data = status & 0x0000ffff ;
> return 0 ;
> }
> timeout-- ;
> }
>
> (void) fputs( "eeprom read timeout!\n", stderr ) ;
>
> return 1 ;
> }
>
> int
> vt_ar5211_eeprom_write( unsigned char *mem,
> unsigned int offset,
> unsigned short int new_data )
> {
> int timeout = 10000 ;
> unsigned long int status ;
> unsigned long int pcicfg ;
> int i ;
> unsigned short int sdata ;
>
> /** enable eeprom access */
> pcicfg = VT_WLAN_IN32( AR5K_PCICFG ) ;
> VT_WLAN_OUT32( ( pcicfg & ~AR5K_PCICFG_SPWR_DN ), AR5K_PCICFG ) ;
> usleep( 500 ) ;
> VT_WLAN_OUT32( pcicfg | AR5K_PCICFG_EEAE /* | 0x2 */, AR5K_PCICFG) ;
> usleep( 50 ) ;
>
> VT_WLAN_OUT32( 0, AR5211_EEPROM_STATUS );
> usleep( 50 ) ;
>
> /* VT_WLAN_OUT32( 0x1, AR5211_EEPROM_CONF ) ; */
> VT_WLAN_OUT32( 0x0, AR5211_EEPROM_CONF ) ;
> usleep( 50 ) ;
>
> i = 100 ;
> retry:
> /** enable eeprom write access */
> VT_WLAN_OUT32( AR5211_EEPROM_COMD_RESET, AR5211_EEPROM_COMD);
> usleep( 500 ) ;
>
> /* Write data */
> VT_WLAN_OUT32( new_data, AR5211_EEPROM_DATA );
> usleep( 5 ) ;
>
> /** set address */
> VT_WLAN_OUT32( offset, AR5211_EEPROM_ADDR);
> usleep( 5 ) ;
>
> VT_WLAN_OUT32( AR5211_EEPROM_COMD_WRITE, AR5211_EEPROM_COMD);
> usleep( 5 ) ;
>
> for ( timeout = 10000 ; timeout > 0 ; --timeout ) {
> status = VT_WLAN_IN32( AR5211_EEPROM_STATUS );
> if ( status & 0xC ) {
> if ( status & AR5211_EEPROM_STAT_WRERR ) {
> fprintf( stderr,
> "eeprom write access failed!\n");
> return 1 ;
> }
> VT_WLAN_OUT32( 0, AR5211_EEPROM_STATUS );
> usleep( 10 ) ;
> break ;
> }
> usleep( 10 ) ;
> timeout--;
> }
> (void) vt_ar5211_eeprom_read( mem, offset, &sdata ) ;
> if ( ( sdata != new_data ) && i ) {
> --i ;
> fprintf( stderr, "Retrying eeprom write!\n");
> goto retry ;
> }
>
> return !i ;
> }
>
> static void
> Usage( char *progname )
> {
> (void) fprintf( stderr,
> "Usage: %s physical_address_base new_country_code\n",
> progname ) ;
> return ;
> }
>
> int
> main( int argc, char **argv )
> {
> unsigned long int base_addr ;
> int fd ;
> void *membase ;
> unsigned short int sdata ;
> unsigned short int new_cc ;
>
> if ( argc < 3 ) {
> Usage( argv[0] ) ;
> return -1 ;
> }
>
> base_addr = strtoul( argv[2], NULL, 0 ) ;
> if ( base_addr > 0xFFFF ) {
> (void) fputs(
> "Error: New domain code must be 16 bits or less\n",
> stderr ) ;
> Usage( argv[0] ) ;
> return -2 ;
> }
> new_cc = (unsigned short int) base_addr ;
> base_addr = strtoul( argv[1], NULL, 0 ) ;
> #define ATHEROS_PCI_MEM_SIZE 0x10000
> fd = open( "/dev/mem", O_RDWR ) ;
> if ( fd < 0 ) {
> fprintf( stderr, "Open of /dev/mem failed!\n" ) ;
> return -2 ;
> }
> membase = mmap( 0, ATHEROS_PCI_MEM_SIZE, PROT_READ|PROT_WRITE,
> MAP_SHARED|MAP_FILE, fd, base_addr ) ;
> if ( membase == (void *) -1 ) {
> fprintf( stderr,
> "Mmap of device at 0x%08X for 0x%X bytes failed!\n",
> base_addr, ATHEROS_PCI_MEM_SIZE ) ;
> return -3 ;
> }
>
> #if 0
> (void) vt_ar5211_eeprom_write( (unsigned char *) membase,
> AR5K_EEPROM_PROTECT_OFFSET, 0 ) ;
> #endif /* #if 0 */
>
> if ( vt_ar5211_eeprom_read( (unsigned char *) membase, 0xBF, &sdata ) )
> fprintf( stderr, "EEPROM read failed\n" ) ;
>
> printf( "Current value 0x%04X will change to 0x%04X\n", sdata,
> new_cc ) ;
>
> if ( vt_ar5211_eeprom_write( (unsigned char *) membase, 0xBF, new_cc ) )
> fprintf( stderr, "EEPROM write failed\n" ) ;
>
> if ( vt_ar5211_eeprom_read( (unsigned char *) membase, 0xBF, &sdata ) )
> fprintf( stderr, "EEPROM read failed\n" ) ;
>
> if ( sdata != new_cc )
> fprintf( stderr, "Write & read don't match 0x%04X != 0x%04X\n",
> new_cc, sdata ) ;
>
> return 0 ;
> }
>
>
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