From patchwork Tue Dec 8 18:24:45 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manoj Iyer X-Patchwork-Id: 40656 X-Patchwork-Delegate: apw@canonical.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from chlorine.canonical.com (chlorine.canonical.com [91.189.94.204]) by ozlabs.org (Postfix) with ESMTP id 5A0F2B6F08 for ; Wed, 9 Dec 2009 05:25:18 +1100 (EST) Received: from localhost ([127.0.0.1] helo=chlorine.canonical.com) by chlorine.canonical.com with esmtp (Exim 4.60) (envelope-from ) id 1NI4kE-0007OJ-HY; Tue, 08 Dec 2009 18:25:06 +0000 Received: from adelie.canonical.com ([91.189.90.139]) by chlorine.canonical.com with esmtp (Exim 4.60) (envelope-from ) id 1NI4k8-0007Nh-5T for kernel-team@lists.ubuntu.com; Tue, 08 Dec 2009 18:25:00 +0000 Received: from hutte.canonical.com ([91.189.90.181]) by adelie.canonical.com with esmtp (Exim 4.69 #1 (Debian)) id 1NI4k8-0005zj-1v for ; Tue, 08 Dec 2009 18:25:00 +0000 Received: from [70.114.236.114] (helo=hungry.local) by hutte.canonical.com with esmtpsa (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.69) (envelope-from ) id 1NI4k7-0004xG-98 for kernel-team@lists.ubuntu.com; Tue, 08 Dec 2009 18:25:00 +0000 Date: Tue, 8 Dec 2009 12:24:45 -0600 (CST) From: Manoj Iyer To: Ubuntu Kernel Team Subject: [Lucid] UBUNTU: Added driver fsam7400 kill switch for Fujitsu Siemens Amilo M 7400 Message-ID: User-Agent: Alpine 2.00 (DEB 1167 2008-08-23) MIME-Version: 1.0 X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.8 Precedence: list Reply-To: Manoj Iyer List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kernel-team-bounces@lists.ubuntu.com Errors-To: kernel-team-bounces@lists.ubuntu.com Added fsam7400 to ubuntu/ current version is 0.5.2. Test Kernel: ============ http://people.canonical.com/~manjo/lucid/fsam7400/ Git commit: =========== The following changes since commit 32d9c7cf3feb08a71caee60c5d2bfff0b9fc4884: Manoj Iyer (1): UBUNTU: Added driver fsam7400 kill switch for Fujitsu Siemens Amilo M 7400 are available in the git repository at: ssh://zinc.canonical.com/srv/kernel.ubuntu.com/git/manjo/ubuntu-lucid.git fsam7400 Changes: ======== From 32d9c7cf3feb08a71caee60c5d2bfff0b9fc4884 Mon Sep 17 00:00:00 2001 From: Manoj Iyer Date: Tue, 8 Dec 2009 12:10:26 -0600 Subject: [PATCH] UBUNTU: Added driver fsam7400 kill switch for Fujitsu Siemens Amilo M 7400 ExternalDriver: fsam7400 Description: SW RF kill switch for Fujitsu Siemens Amilo M7400/Maxdata 7000DX and compatible hardware. Url: http://www.iragan.com/linux/fsam7400/ Mask: Version: 0.5.2 Signed-off-by: Manoj Iyer --- debian.master/changelog | 2 +- ubuntu/Kconfig | 1 + ubuntu/Makefile | 1 + ubuntu/fsam7400/BOM | 2 + ubuntu/fsam7400/CHANGELOG | 34 ++++ ubuntu/fsam7400/FILES | 6 + ubuntu/fsam7400/INSTALL | 110 +++++++++++++ ubuntu/fsam7400/Kconfig | 4 + ubuntu/fsam7400/LICENSE | 338 ++++++++++++++++++++++++++++++++++++++ ubuntu/fsam7400/Makefile | 49 ++++++ ubuntu/fsam7400/README | 60 +++++++ ubuntu/fsam7400/fsam7400.c | 386 ++++++++++++++++++++++++++++++++++++++++++++ 12 files changed, 992 insertions(+), 1 deletions(-) create mode 100644 ubuntu/fsam7400/BOM create mode 100644 ubuntu/fsam7400/CHANGELOG create mode 100644 ubuntu/fsam7400/FILES create mode 100644 ubuntu/fsam7400/INSTALL create mode 100644 ubuntu/fsam7400/Kconfig create mode 100644 ubuntu/fsam7400/LICENSE create mode 100644 ubuntu/fsam7400/Makefile create mode 100644 ubuntu/fsam7400/README create mode 100644 ubuntu/fsam7400/fsam7400.c diff --git a/debian.master/changelog b/debian.master/changelog index f8d90c2..6a84280 100644 --- a/debian.master/changelog +++ b/debian.master/changelog @@ -1,4 +1,4 @@ -linux (2.6.32-7.10) lucid; urgency=low +linux (2.6.32-7.10~fsam7400manjo1) lucid; urgency=low [ Andy Whitcroft ] diff --git a/ubuntu/Kconfig b/ubuntu/Kconfig index 6beb553..934571a 100644 --- a/ubuntu/Kconfig +++ b/ubuntu/Kconfig @@ -6,6 +6,7 @@ source "ubuntu/aufs/Kconfig" source "ubuntu/compcache/Kconfig" source "ubuntu/dm-raid4-5/Kconfig" source "ubuntu/drbd/Kconfig" +source "ubuntu/fsam7400/Kconfig" source "ubuntu/iscsitarget/Kconfig" source "ubuntu/lenovo-sl-laptop/Kconfig" source "ubuntu/lirc/Kconfig" diff --git a/ubuntu/Makefile b/ubuntu/Makefile index 60242f0..0dc80ff 100644 --- a/ubuntu/Makefile +++ b/ubuntu/Makefile @@ -7,6 +7,7 @@ obj-$(CONFIG_SECURITY_APPARMOR) += apparmor/ obj-$(CONFIG_AUFS_FS) += aufs/ obj-$(CONFIG_BLK_DEV_COMPCACHE) += compcache/ obj-$(CONFIG_DM_RAID45) += dm-raid4-5/ +obj-$(CONFIG_FSAM7400) += fsam7400/ #obj-$(CONFIG_BLK_DEV_DRBD) += drbd/ #obj-$(CONFIG_SCSI_ISCSITARGET) += iscsitarget/ obj-$(CONFIG_LENOVO_SL_LAPTOP) += lenovo-sl-laptop/ diff --git a/ubuntu/fsam7400/BOM b/ubuntu/fsam7400/BOM new file mode 100644 index 0000000..4bfee23 --- /dev/null +++ b/ubuntu/fsam7400/BOM @@ -0,0 +1,2 @@ +Downloaded from: http://www.iragan.com/linux/fsam7400/ +Current Version: 0.5.2 (2008 Nov 22) diff --git a/ubuntu/fsam7400/CHANGELOG b/ubuntu/fsam7400/CHANGELOG new file mode 100644 index 0000000..cb17001 --- /dev/null +++ b/ubuntu/fsam7400/CHANGELOG @@ -0,0 +1,34 @@ +Nov 22 2008 Changes in 0.5.2 by legolas558 +* fixed some missing include files + +Sep 22 2006 Changes in 0.5.1 +* Fix: possible null pointer dereference in proc code +* Fix: module exit code was mistakenly disabled + +Sep 22 2006 Changes in 0.5.0 +* fixed compilation problems with kernel 2.6.18 +* debug-output enabling via module parameter +* hibernation support: reconstruct last radio state on resume +* disabled autoload option by default + +Jul 16 2006 Changes in 0.4.1 +* new Makefile fixing problems with kernel 2.6.17 +* several bug fixes and compiler cleanups + +Aug 20 2004 Changes in 0.4.0 +* several bug fixes and compiler cleanups +* UID/GID for procfs entry selectable via module parameter +* Autoload support: fsam7400 modprobes and rmmods ipw2100 automatically + depending on radio state + +Apr 15 2004 Changes in 0.3.0 +* Fix: radio state was not displayed properly +* some proc improvements +* finished code for alternative routine address calculation +* debug-output selectable at compile-time with CONFIG_IPW2100_DEBUG define + for smaller module size if no debug is needed ;) + +Apr 9 2004 Changes in 0.2.1 +* Initial release +* Determines if wireless device is enabled by default Bios-settings +* Auto-off functionality diff --git a/ubuntu/fsam7400/FILES b/ubuntu/fsam7400/FILES new file mode 100644 index 0000000..80899bf --- /dev/null +++ b/ubuntu/fsam7400/FILES @@ -0,0 +1,6 @@ +CHANGELOG Recently changes logged +FILES This file +fsam7400.c The source code, what else... :) +INSTALL Installation instructions +Makefile Makefile to build, install, uninstall the module +README don't forget to read it diff --git a/ubuntu/fsam7400/INSTALL b/ubuntu/fsam7400/INSTALL new file mode 100644 index 0000000..352e15b --- /dev/null +++ b/ubuntu/fsam7400/INSTALL @@ -0,0 +1,110 @@ +SW RF kill switch for Fujitsu Siemens Amilo M 7400 +Copyright (C) 2006, zwobbl +For additional information, contact Marcel Naziri + +COMPILER REQUIREMENTS +--------- ------ ---- --- -- -- - - + +You need to be using GCC v3.0 or higher in order to build the fsam7400 module. +Using older versions will result in several compilation errors. + + +INSTALLING THE BITS +------------ ----- ----- ---- --- -- - + +# Unpack the source tarball + +% tar xvzf fsam7400-0.x.y.tgz +% cd fsam7400-0.x.y + +Make sure to be root when performing the following operations. Also you must +have a kernel source tree installed under /usr/src/linux + +# Build the kernel module + +% make + +Debug output is enabled by default. This is a good idea if you use the fsam module for +the first time, so you get some nice information printed on kernel log. If you don't +need the messages anymore, you have to comment out the line CONFIG_IPW2100_DEBUG=y in +the Makefile. + +# Install the kernel module + +% make install + +Now you are ready for... + + +LOADING THE DRIVER +------------ ----- ----- ---- --- -- - + +Also easy to go... :) + +% modprobe fsam7400 + +If you have set "wireless device" enabled in your "Advanced" bios settings of +your Amilo M 7400 radio should be turned on at this point. So you're done! +Watch out your kernel log if supported hardware was found. :) + + +RADIO STATE AT LOADING + +You can override the wireless bios setting with + +% modprobe fsam7400 radio=[0|1] + + +PROC FILESYSTEM + +If your hardware is supported by the driver you will get an entry in /proc +called driver/wireless/radio which will give you state information by typing + +% cat /proc/driver/wireless/radio + +You can turn the radio on and off at your will with + +% echo [1|on] > /proc/driver/wireless/radio +% echo [0|off] > /proc/driver/wireless/radio + +The module also recognizes parameters to set the user- and/or group-ID to +something other than root, so you don't have to adjust it by hand. +Just select your favourite IDs and type + +% modprobe fsam7400 uid=1000 gid=500 + +Note, that /proc/driver/wireless/radio will only be read- and writeable by +user & group and only readable by others. + +If you want to see debug output on syslog use the following parameter when +loading the module + +% modprobe fsam7400 debug=1 + + +AUTOMATION FEATURES + +By default the driver will turn off the radio automatically short before the +module is unloaded. To override this behaviour load the module adding the +following parameter + +% modprobe fsam7400 autooff=0 + +Also since 0.4.0 the driver can automatically modprobe the ipw2100 module when +radio state changes to on and rmmods it when radio is turned off by fsam7400. +To enable autoload support, use + +% modprobe fsam7400 autoload=1 + + +HIBERNATION SUPPORT + +After hibernation and boot up of the system the wireless radio might be disabled +again. To revert to the radio state before hibernation just put the following +in the wakeup script + +% echo resume > /proc/driver/wireless/radio + + + +That's all for now. Have fun with the driver! diff --git a/ubuntu/fsam7400/Kconfig b/ubuntu/fsam7400/Kconfig new file mode 100644 index 0000000..b349ca2 --- /dev/null +++ b/ubuntu/fsam7400/Kconfig @@ -0,0 +1,4 @@ +config FSAM7400 + tristate "SW RF kill switch for Fujitsu Siemens Amilo M 7400" + default m + ---help--- diff --git a/ubuntu/fsam7400/LICENSE b/ubuntu/fsam7400/LICENSE new file mode 100644 index 0000000..1fe7297 --- /dev/null +++ b/ubuntu/fsam7400/LICENSE @@ -0,0 +1,338 @@ +"This software program is licensed subject to the GNU General Public License +(GPL). Version 2, June 1991, available at +" + +GNU General Public License + +Version 2, June 1991 + +Copyright (C) 1989, 1991 Free Software Foundation, Inc. +59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + +Everyone is permitted to copy and distribute verbatim copies of this license +document, but changing it is not allowed. + +Preamble + +The licenses for most software are designed to take away your freedom to +share and change it. 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Of course, the commands you use may be +called something other than 'show w' and 'show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + +Yoyodyne, Inc., hereby disclaims all copyright interest in the program +'Gnomovision' (which makes passes at compilers) written by James Hacker. + +signature of Ty Coon, 1 April 1989 +Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Library General Public +License instead of this License. diff --git a/ubuntu/fsam7400/Makefile b/ubuntu/fsam7400/Makefile new file mode 100644 index 0000000..b5a3a15 --- /dev/null +++ b/ubuntu/fsam7400/Makefile @@ -0,0 +1,49 @@ +KERNELSRC?=/lib/modules/`uname -r`/build +KERNELVERSION=$(shell awk -F\" '/REL/ {print $$2}' $(shell grep -s -l REL $(KERNELSRC)/include/linux/version.h $(KERNELSRC)/include/linux/utsrelease.h)) +KERNELMAJOR=$(shell echo $(KERNELVERSION)|head -c3) + +CONFIG_FSAM7400?=m +obj-$(CONFIG_FSAM7400) += fsam7400.o + +EXTRA_CFLAGS+=-c -Wall -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common +INCLUDE=-I$(KERNELSRC)/include + +ifeq ($(KERNELMAJOR), 2.6) +KERNEL26 := 1 +TARGET := fsam7400.ko +else +TARGET := fsam7400.o +endif + +SOURCE := fsam7400.c + +all: $(TARGET) + +help: + @echo Possible targets: + @echo -e all\\t- default target, builds kernel module + @echo -e install\\t- copies module binary to /lib/modules/$(KERNELVERSION)/extra/ + @echo -e clean\\t- removes all binaries and temporary files + +fsam7400.ko: $(SOURCE) + $(MAKE) -C $(KERNELSRC) SUBDIRS=$(PWD) modules + +fsam7400.o: $(SOURCE) + $(CC) $(INCLUDE) $(EXTRA_CFLAGS) -DDEBUG -DMODVERSIONS -DMODULE -D__KERNEL__ -o $(TARGET) $(SOURCE) + +clean: + @echo -n "sweeping directory... " + @rm -f *~ *.o *.ko .fsam7400* *.mod.c *symvers .tmp_versions/* + @if [ -d .tmp_versions ]; then rmdir .tmp_versions; fi + @echo "done" + +load: $(TARGET) + insmod $(TARGET) + +unload: + rmmod fsam7400 + +install: $(TARGET) + mkdir -p /lib/modules/$(KERNELVERSION)/extra + cp -v $(TARGET) /lib/modules/$(KERNELVERSION)/extra/ + depmod -a diff --git a/ubuntu/fsam7400/README b/ubuntu/fsam7400/README new file mode 100644 index 0000000..d03ef62 --- /dev/null +++ b/ubuntu/fsam7400/README @@ -0,0 +1,60 @@ +SW RF kill switch for Fujitsu Siemens Amilo M 7400 / Maxdata 7000DX +and compatible hardware. + +Please be sure that CONFIG_CHECK_SIGNATURE=y in your kernel configuration! +Otherwise this module will not compile. + +Nov 22, 2008 - Release 0.5.2 + +This package, with minor modifications from zwobbl's 0.5.1, was created +by legolas558. + +More information at: +http://legolas558.iragan.com/fsam7400 + +Sep 24, 2006 - Release 0.5.1 +------------ ----- ----- ---- --- -- - + +* Fix: possible null pointer dereference in proc code + +* Fix: module exit code was mistakenly disabled + + +for prior changes see CHANGELOG + + +TODO +------------ ----- ----- ---- --- -- - + +* Fix bugs (if there are any ;)) + + +------------ ----- ----- ---- --- -- - + +Have a look in INSTALL for further details to get things working! + + +License +------------ ----- ----- ---- --- -- - + + Copyright(c) 2006 zwobbl. All rights reserved. + + 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. + + The full GNU General Public License is included in this distribution in the + file called LICENSE. + + Contact Information: + Marcel Naziri diff --git a/ubuntu/fsam7400/fsam7400.c b/ubuntu/fsam7400/fsam7400.c new file mode 100644 index 0000000..cbc40b8 --- /dev/null +++ b/ubuntu/fsam7400/fsam7400.c @@ -0,0 +1,386 @@ +/******************************************************************************* + + 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. + + The full GNU General Public License is included in this distribution in the + file called LICENSE. + + Author: + Marcel Naziri + + Based on: + pbe5.c by Pedro Ramalhais + + Many thanks to: + Pedro Ramalhais for spending several nights with me on IRC + +*******************************************************************************/ + +#ifdef CONFIG_X86 +#include +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) +#include +#else +#include +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define DRV_NAME "fsam7400" +#define DRV_VERSION "0.5.2" +#define DRV_DESCRIPTION "SW RF kill switch for Fujitsu Siemens Amilo M 7400 / Maxdata 7000DX" +#define DRV_COPYRIGHT "Copyright(c) 2004 zwobbl" +#define DRV_AUTHOR "Marcel Naziri" +#define DRV_LICENSE "GPL" + +MODULE_DESCRIPTION(DRV_DESCRIPTION); +MODULE_AUTHOR(DRV_AUTHOR); +MODULE_LICENSE(DRV_LICENSE); + +#define RADIO_NONE 0xFFFFFFFF +#define RADIO_OFF 0x00000000 +#define RADIO_ON 0x00000010 + +static int radio = RADIO_NONE; +static int autooff = 1; +static int autoload = 0; +static int uid = 0; +static int gid = 0; +static int debug = 0; + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) +module_param(radio, int, 0444); +module_param(autooff, int, 0444); +module_param(autoload, int, 0444); +module_param(uid, int, 0444); +module_param(gid, int, 0444); +module_param(debug, int, 0444); +#else +MODULE_PARM(radio, "i"); +MODULE_PARM(autooff, "i"); +MODULE_PARM(autoload, "i"); +MODULE_PARM(uid, "i"); +MODULE_PARM(gid, "i"); +MODULE_PARM(debug, "i"); +#endif + +MODULE_PARM_DESC(radio, "desired radio state when loading module"); +MODULE_PARM_DESC(autooff, "turns radio off when unloading module (default)"); +MODULE_PARM_DESC(autoload, "load/unloads ipw2100 driver when toggling radio"); +MODULE_PARM_DESC(uid, "user ID for proc entry"); +MODULE_PARM_DESC(gid, "group ID for proc entry"); +MODULE_PARM_DESC(debug, "enables debug output on syslog"); + +/* some more or less useful macros */ + +#define DEBUG if (debug) +#define DEBUG_OUT0(a) DEBUG printk(KERN_INFO DRV_NAME ": " a) +#define DEBUG_OUT1(a,b) DEBUG printk(KERN_INFO DRV_NAME ": " a,b) +#define DEBUG_OUT2(a,b,c) DEBUG printk(KERN_INFO DRV_NAME ": " a,b,c) +#define DEBUG_OUT3(a,b,c,d) DEBUG printk(KERN_INFO DRV_NAME ": " a,b,c,d) + +#define ONOFF(x) (x) ? "ON" : "OFF" +#define RADIO_ONOFF(x) (x) == RADIO_ON ? "ON" : "OFF" +#define TOUL(x) (unsigned long) (x) + +/* + * NOTE: These values were obtained from disassembling the wbutton.sys driver + * installed in the Fujitsu Siemens Amilo M 7400 laptop. The names were guessed, + * so don't rely on them. + */ + +/*** hardware dependant stuff ***/ + +#define BIOS_CODE_ADDR 0x000F0000 +#define BIOS_CODE_ALT_MASK 0xFFFFC000 + +#define BIOS_CODE_MAPSIZE 0x010000 +#define BIOS_CODE_ALT_MAPSIZE 0x004000 + +#define BIOS_MAGIC_COMMAND 0x9610 +#define BIOS_MAGIC_OFF 0x0035 +#define BIOS_MAGIC_ON 0x0135 +#define BIOS_MAGIC_CHECK 0x0235 + +#define PTR_POSITION 5 +#define ALLIGNED_STEP 0x10 + +#define BIOS_SIGN_SIZE 4 +static const char bios_sign[] = { + 0x42, 0x21, 0x55, 0x30 +}; + +#define WLAN_DISABLED_IN_BIOS 0x01 +#define WLAN_ENABLED_IN_BIOS 0x03 + +static unsigned long bios_code = 0; + +static int fsam_bios_routine(int eax, int ebx) +{ + __asm__ __volatile__( + "call *%3 \t\n" + : "=a"(eax) + : "a"(eax), "b"(ebx), "c"(bios_code) + ); + return (eax & 0xFF); +} + +static int fsam_call_bios(int value) +{ + if (bios_code) { + int command = BIOS_MAGIC_COMMAND; + DEBUG_OUT2("bios routine gets parameter eax=%X and ebx=%X\n", + command, value); + value = fsam_bios_routine(command, value); + DEBUG_OUT1("bios routine results %X\n", value); + return value; + } + return ~0; +} + +/* pointer to mapped memory*/ +static void *mem_code = NULL; + +static inline void fsam_unmap_memory(void) +{ + bios_code = 0; + if (mem_code) { + iounmap(mem_code); + } +} + +static inline int fsam_map_memory(void) +{ + const unsigned long max_offset = BIOS_CODE_MAPSIZE - BIOS_SIGN_SIZE - PTR_POSITION; + unsigned long offset; + unsigned int addr; + mem_code = ioremap(BIOS_CODE_ADDR, BIOS_CODE_MAPSIZE); + if (!mem_code) + goto fail; + DEBUG_OUT3("physical memory %x-%x mapped to virtual address %p\n", + BIOS_CODE_ADDR, BIOS_CODE_ADDR+BIOS_CODE_MAPSIZE, mem_code); + for ( offset = 0; offset < max_offset; offset += ALLIGNED_STEP ) + if (check_signature((void*)TOUL(mem_code) + offset, bios_sign, BIOS_SIGN_SIZE)) + break; + if (offset >= max_offset) + goto fail; + DEBUG_OUT1("bios signature found at offset %lx\n", offset); + addr = readl((void*)TOUL(mem_code) + offset + PTR_POSITION); + if (addr < BIOS_CODE_ADDR) { + DEBUG_OUT0("bios routine out of memory range, " + "doing some new memory mapping...\n"); + iounmap(mem_code); + mem_code = NULL; + addr &= BIOS_CODE_ALT_MASK; + mem_code = ioremap(addr, BIOS_CODE_ALT_MAPSIZE); + if (!mem_code) + goto fail; + DEBUG_OUT3("physical memory %x-%x mapped to virtual address %p\n", + addr, addr+BIOS_CODE_ALT_MAPSIZE, mem_code); + addr &= 0x3FFF; + } else + addr &= 0xFFFF; + + bios_code = addr + TOUL(mem_code); + DEBUG_OUT1("supposed address of bios routine is %lx\n", bios_code); + return 1; + fail: + fsam_unmap_memory(); + return 0; +} + +/*** ipw2100 loading ***/ + +static inline void do_ipw2100_loading(int state) +{ + int status; + char *mode; + char *envp[] = { "HOME=/", + "TERM=linux", + "PATH=/sbin:/usr/sbin:/bin:/usr/bin", NULL }; + if (state == RADIO_ON) { + char *argv[] = { "/sbin/modprobe", "-s", "-k", "ipw2100", NULL }; + mode = "loading"; + status = call_usermodehelper(argv[0], argv, envp, 1); + } else { + char *argv[] = { "/sbin/rmmod", "ipw2100", NULL }; + mode = "removing"; + status = call_usermodehelper(argv[0], argv, envp, 1); + } + DEBUG_OUT2("%s of ipw2100 module %s\n", mode, status == 0 ? "successful" : "FAILED"); +} + +/*** interface stuff ***/ + +static void rfkill_set_radio(int value) +{ + radio = value == RADIO_ON ? fsam_call_bios(BIOS_MAGIC_ON) : + fsam_call_bios(BIOS_MAGIC_OFF); + if (autoload) do_ipw2100_loading(radio); +} + +static inline int rfkill_get_radio(void) +{ + return radio; +} + +static inline int rfkill_supported(void) +{ + return bios_code != 0; +} + +static inline void rfkill_initialize(void) { + fsam_map_memory(); + if (rfkill_supported()) { + radio = radio != RADIO_NONE + ? ( radio ? RADIO_ON : RADIO_OFF ) /*module parameter*/ + : ( fsam_call_bios(BIOS_MAGIC_CHECK) == WLAN_ENABLED_IN_BIOS + ? RADIO_ON : RADIO_OFF ); + } +} + +static inline void rfkill_uninitialize(void) { + fsam_unmap_memory(); +} + +/*** proc stuff ***/ + +static inline int common_proc_set_radio(struct file *file, const char *buffer, + unsigned long count, void *data) +{ + unsigned long len = 7; + char newstate[len]; + len = count < len ? count : len; + if ( copy_from_user(newstate, buffer, len) != 0 ) + return -EFAULT; + if ( (*newstate == '1' || *newstate == '0') && + (count == 1 || isspace(newstate[1])) ) + rfkill_set_radio(*newstate == '1' ? RADIO_ON : RADIO_OFF); + else + if ( !strncmp(newstate, "on", 2) && + (count == 2 || isspace(newstate[2])) ) + rfkill_set_radio(RADIO_ON); + else + if ( !strncmp(newstate, "off", 3) && + (count == 3 || isspace(newstate[3])) ) + rfkill_set_radio(RADIO_OFF); + else + if ( !strncmp(newstate, "resume", 6) && + (count == 6 || isspace(newstate[6])) ) + rfkill_set_radio(radio); + return count; +} + +static inline int common_proc_get_radio(char *page, char **start, off_t offset, + int count, int *eof, void *data) +{ + int len = snprintf(page, count, DRV_DESCRIPTION ", v" DRV_VERSION "\n" + " auto-off is %s, auto-load is %s\n", + ONOFF(autooff), ONOFF(autoload)); + len += snprintf(page+len, count-len, " radio state is %s\n", + RADIO_ONOFF(rfkill_get_radio())); + *eof = 1; + return len; +} + +#define PROC_DIR "driver/wireless" +#define PROC_RADIO "radio" + +static struct proc_dir_entry *dir_base = NULL; + +static inline void common_proc_cleanup(void) +{ + if (dir_base) { + remove_proc_entry(PROC_RADIO, dir_base); + remove_proc_entry(PROC_DIR, NULL); + dir_base = NULL; + } +} + +static inline int common_proc_init(void) +{ + struct proc_dir_entry *ent; + int err = 0; + dir_base = proc_mkdir(PROC_DIR, NULL); + if (dir_base == NULL) { + printk(KERN_ERR DRV_NAME ": Unable to initialize /proc/" PROC_DIR "\n"); + err = -ENOMEM; + goto fail; + } + ent = create_proc_entry(PROC_RADIO, + S_IFREG | S_IRUGO | S_IWUSR | S_IWGRP, + dir_base); + if (ent) { + ent->uid = uid; + ent->gid = gid; + ent->read_proc = common_proc_get_radio; + ent->write_proc = common_proc_set_radio; + } else { + printk(KERN_ERR DRV_NAME ": Unable to initialize /proc/" + PROC_DIR "/" PROC_RADIO "\n"); + err = -ENOMEM; + goto fail; + } + return 0; + fail: + common_proc_cleanup(); + return err; +} + +/*** module stuff ***/ + +static int __init common_init(void) +{ + printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", v" DRV_VERSION "\n"); + printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n"); + rfkill_initialize(); + if (rfkill_supported()) { + common_proc_init(); + if (radio != RADIO_NONE) + rfkill_set_radio(radio); + } else + printk(KERN_INFO DRV_NAME ": no supported wireless hardware found\n"); + return 0; +} + +static void __exit common_exit(void) +{ + if (rfkill_supported() && autooff) + rfkill_set_radio(RADIO_OFF); + common_proc_cleanup(); + rfkill_uninitialize(); + printk(KERN_INFO DRV_NAME ": module removed successfully\n"); +} + +module_init(common_init); +module_exit(common_exit); + +#else +#error This driver is only available for X86 architecture +#endif + +/* + 1 2 3 4 5 6 7 +12345678901234567890123456789012345678901234567890123456789012345678901234567890 +*/