[tlinux-users:08498] Re: reg:ToshibaA100-139 Fn key

Hello Jaime,
              Thanks for sending  module , can you give  the details
regarding first part
Which  Makefile   i  need  to  edit in oder to  make it  work , as  it is
unclear to  me .


On 6/14/07, Jaime <[email protected]> wrote:
>
> I made a small module with reverse engeneering of the Windows driver.
> I only tested on my Toshiba Satellite Pro A100 and it works.
> To compile:
> Edit a Makefile and add:
>    obj-m := test.o




then run in the same directory:
>
>   make -C /usr/src/linux SUBDIRS=`pwd` modules
>
> Then make the file for the new device:
>
>   mknod test_file c 181 0
>
> Load de module:
>
>   insmod test.ko
>
> And now, if you are very very lucky, maybe it will work:
>
>    echo 3 > test_file
>
> But I warn: THE MOST PROBABLY THING WILL HAPPEN IS THE FREEZE OF THE
> LAPTOP IF YOUR MODEL DOESN'T MATCH EXACTLY WITH THE MODEL I TESTED. If
> you don't have a Phoenix BIOS don't try this, and if you have.. well..
> it's your election x)
>
> Here is the driver
>
> test.c
> =================== CUT HERE ===================
> /*
> * Module for Toshiba lcd bright change.
> * I only made it for my Toshiba Satellite Pro A100 with Phoenix BIOS
> * I don't know under which models it works (I suppose very few)
> * The asm code I inserted I took it from a disass of the windows
> * driver provided by Toshiba.
> * WARNING:
> * The driver does NOT make any tests if the model is valid or not
> * so, the MOST probably effect of running this will be the hang of
> * the laptop, or something worse.
> * PLEASE DON'T USE THIS unless you really know what you are doing
> * This module isn't made for give support to any Toshiba model,
> * only for tests purpouses , sorry about it.
> *
> * Jaime F. <[email protected]>
> * License: GNU/GPL
> */
>
>
> #include <linux/kernel.h>
> #include <linux/module.h>
> #include <linux/fs.h>
> #include <linux/io.h>
>
> #define DEVICE_NAME "lcd_bright"
> #define MAJOR_NUM 181
>
> char *ptr;
>
> static ssize_t
> device_write(struct file *file,
>              const char __user * buffer, size_t length, loff_t * offset)
> {
>   char *addr;
>   addr=(char *)__pa(ptr);
>   addr+=0x10;
>
>   strcpy(ptr, "INVTOS");
>   //ptr+=10;
>   *(ptr+16)=(char) buffer[0]-0x30;
>   //printk("escribiendo %x\n", *ptr);
> /*
>   inb( 0x2e);
>   inb( 0x2f);
>   outb(7, 0x2e);
>   outb(9, 0x2f);
>   v3=inb(0x2f);
>   outb2(0x2e, 0x55);
>   outb2(0x2e, 7);
>   outb2(0x2f,0x10);
>   outb2(0x2e,0xe0);
>   v4=inb(0x2f);
>   outb2(0x2f,2);
>   v5=inb(0x2f);
>   outb2(0x2f,3);
>
>   outb2(0x2e, 7);
>   outb2(0x2f,9);
>   outb2(0x2e,0x60);
>   v1=inb(0x2f);
>   outb2(0x2e,7);
>   outb2(0x2f,0x10);
>   outb2(0x2e,0xe0);
>   outb2(0x2f,0);
>   outb2(0x2e, 7);
>   outb2(0x2f, 9);
>   outb2 ( 0x2e, 0xaa);
>   outb2 ( 0x400, 0xAF);
>   v2=inb( 0x401);
>   outb2( 0x400, 0xAF);
> */
>
>   __asm__("cli\n"
>         /*        "mov $0x01E4, %%eax\n"
>                   "mov $0x00b0, %%dx\n"
>                   "movb $0x02, 0xEF\n"
>                   "out %%eax, %%dx\n"
> */
>                 "mov %0, %%edx\n"
>                 "mov %%edx, %%edi\n"
>                 "mov $0x20, %%ecx\n"
>                 "mov $0x8000f840, %%eax\n mov $0xcf8, %%edx\n out %%eax,
> %%dx\n"
>                 "mov $0xcfc, %%dx\n"
>                 "in %%dx, %%eax\n"
>                 "and $0x0000ff80, %%eax\n"
>                 "add $0x2c, %%eax\n"
>                 "mov %%ax, %%dx\n"
>                 "in %%dx, %%eax\n"
>                 "push %%eax\n"
> //              "mov %%ax, %%dx\n"
>                 "xor %%eax, %%eax\n"
>                 "out %%eax, %%dx\n"
>                 "mov $0xA2E4, %%eax\n"
>                 "mov $0xb2, %%dx\n"
>                 "out %%eax, %%dx\n"
>                 "pop %%eax\n"
>                 "mov $0x102c, %%dx\n"
>                 "out %%eax, %%dx\n"
> /*              "movl $0x10, %%edx\n\t"
>                 "movl %%edx, %%edi\n\t"
>                 "movl $0x20, %%ecx\n"
>                 "movw  $0x00E4, %%ax\n"
>                 "movb  $0x5, %%ah\n"
>                 "outw  %%ax, $0xb2\n"
>                 "movl %%eax, %0\n sti\n"
>                 */
>         :
>         :"r"(addr): "%eax", "%edx", "%ecx","%edi", "%esi");
>   return length;
> }
>
> struct file_operations Fops = {
>   .write = device_write,
> };
>
> int init_module()
> {
>   int ret_val;
>   ptr=(char *)kmalloc(100, GFP_KERNEL);
>   ptr+=10;
>   ret_val = register_chrdev(MAJOR_NUM, DEVICE_NAME, &Fops);
>
>   if (ret_val < 0)
>   {
>     printk(KERN_ALERT "El registro del dispositivo falló (%d)\n",
> ret_val);
>     return ret_val;
>   }
>
> return 0;
> }
>
> void cleanup_module()
> {
>   int ret;
>
>   ret = unregister_chrdev(MAJOR_NUM, DEVICE_NAME);
>
>   if (ret < 0)
>     printk(KERN_ALERT "Error: unregister_chrdev: %d\n", ret);
> }
>
> ===================== CUT HERE ====================
>
>
>
>
>
>
>
>
> On 6/14/07, Mathieu Larose <[email protected]> wrote:
> > Hi Atul,
> >
> >  I know it won't be very useful, but I just want to let you know that
> I'm in
> > the same situation as you. I've tried a lot of "solution", but none of
> these
> > worked. I even contacted Toshiba and Phoenix to get information about
> this
> > BIOS, and they refused to tell me anything. Maybe you should try to
> contact
> > Toshiba you too or start to reverse engineering it on Windows :)
> >
> >  I know that Mathieu on omnibook has received a lot of request to
> support
> > your model, but without information from Toshiba, he won't do anything.
> >
> >
> >  Mathieu
> >
> >
> > 2007/6/13, atul jain <[email protected]>:
> > >
> > > Hello  all ,
> > >
> > >                      i  bought  toshiba A100-139  last week   and
> > installed debian etch on it .I found that  the fnfx is not functioning
> > >                      so , i am unable to  set  lcd brigthness  and
> also
> > since the bios vendor is pheonix , so  i cannot use
> > >                      toshiba utils.
> > >
> > >
> > >                     If anyone   any idea reagarding  this  , please
> let me
> > know.
> > >
> > >
> > >
> > > waiting for reply
> > >
> > >
> > > Thanks  in advance
> > > --
> > >
> > > Cheers :)
> > > Atul
> >
> >
>
>


-- 

Regards
Atul