A question when test W83792D driver on another motherboard

Huang0 at Winbond.com.tw Huang0 at Winbond.com.tw
Fri Feb 25 06:32:28 CET 2005


Hi Rudolf, Jean

This is Chunhao.
The following messages are for your reference:
[root at localhost root]# modprobe i2c-dev
[root at localhost root]# i2cdetect -l
i2c-0   smbus           SMBus I801 adapter at 0400              Non-I2C SMBus adapter
i2c-1   dummy           ISA main adapter                        ISA bus algorithm
[root at localhost root]# i2cdetect 0
WARNING! This program can confuse your I2C bus, cause data loss and worse!
I will probe file /dev/i2c-0.
I will probe address range 0x03-0x77.
Continue? [Y/n]
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          XX XX XX XX XX XX XX XX XX XX XX XX XX
10: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX
20: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX
30: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX
40: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX
50: XX UU XX XX XX UU XX XX XX XX XX XX XX XX XX XX
60: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX
70: XX XX XX XX XX XX XX XX


[root at localhost root]# cat /proc/ioports
0000-001f : dma1
0020-003f : pic1
0040-005f : timer
0060-006f : keyboard
0070-007f : rtc
0080-008f : dma page reg
00a0-00bf : pic2
00c0-00df : dma2
00f0-00ff : fpu
01f0-01f7 : ide0
02f8-02ff : serial(auto)
03c0-03df : vga+
03f6-03f6 : ide0
03f8-03ff : serial(auto)
0400-041f : PCI device 8086:25a4 (Intel Corp.)
  0400-040f : i801-smbus
0cf8-0cff : PCI conf1
a880-a89f : PCI device 8086:25a9 (Intel Corp.)
  a880-a89f : usb-uhci
ac00-ac1f : PCI device 8086:25aa (Intel Corp.)
  ac00-ac1f : usb-uhci
b000-bfff : PCI Bus #01
c000-cfff : PCI Bus #02
d000-dfff : PCI Bus #03
  d800-d8ff : PCI device 11ab:6041 (Galileo Technology Ltd.)
e000-e0ff : ATI Technologies Inc Rage XL
fc00-fc0f : PCI device 8086:25a2 (Intel Corp.)


Thanks
Best Regards

Chunhao
2005-02-25


> -----Original Message-----
> From: Rudolf Marek [mailto:R.Marek at sh.cvut.cz]
> Sent: 2005年2月24日 19:48
> To: PI14 HUANG0
> Cc: R.Marek at sh.cvut.cz; khali at linux-fr.org; sensors at Stimpy.netroedge.com;
> PI10 LHHsu; PI14 DZSHEN; PI13 CFLi
> Subject: RE: A question when test W83792D driver on another motherboard
> 
> Hello,
> 
> WRITE_PORT_UCHAR((PUCHAR)0x04b9, 0x08);
> 
> This is like "nuclear secret". Please have you any idea what device
> is on port 0x4b9 ? You can take a look either to:
> 
> cat /proc/ioports or to windows device manager/list devices by IO ports
> 
> Thanks
> 
> Rudolf
> 
> 
> On Thu, 24 Feb 2005 Huang0 at Winbond.com.tw wrote:
> 
> > Hi Rudolf, Jean
> >
> > Our 792 driver for Windows can work now after the debug, I'd like to
> > send to how they solve this problem, maybe this can help to solve the
> > problem we meet under Linux.
> >
> > Windows driver only add one line code in it's i2c driver, which makes
> > 792 work correctly, the code has been added is:
> > WRITE_PORT_UCHAR((PUCHAR)0x04b9, 0x08);
> >
> > I'd like to send part of the Windows codes for your reference, please
> > check it. If you know how to fix the bug of i2c Linux driver, please tell
> > me, I'd like to debug it.
> >
> > Btw, I have not received the reply from ASUS, when I get it, I will
> > forward it to you.
> >
> > Thanks
> > Best Regards
> >
> > ********************************************
> > NTSTATUS
> > GpdIoctlGetSMBusAddress(
> > 	IN PLOCAL_DEVICE_INFO pLDI,
> > 	IN PIRP pIrp,
> > 	IN PIO_STACK_LOCATION IrpStack,
> > 	IN ULONG IoctlCode  )
> >
> > {
> > 				// NOTE:  Use METHOD_BUFFERED ioctls.
> > 	PULONG pIOBuffer;           // Pointer to transfer buffer
> > 				//      (treated as an array of longs).
> > 	ULONG InBufferSize;         // Amount of data avail. from caller.
> > 	ULONG OutBufferSize;        // Max data that caller can accept.
> > 	ULONG nPort;                // Port number to read
> > 	ULONG DataBufferSize;
> > 	ULONG  BaseAddr;
> > 	ULONG  Result ;
> > 	unsigned char flag,data;
> >
> > 	// Size of buffer for data to be sent to application
> > 	OutBufferSize =
> IrpStack->Parameters.DeviceIoControl.OutputBufferLength;
> >
> > 	// NT copies inbuf here before entry and copies this to outbuf after
> > 	// return, for METHOD_BUFFERED IOCTL's.
> > 	pIOBuffer = (PULONG)pIrp->AssociatedIrp.SystemBuffer;
> >
> > 	// Check to ensure input buffer is big enough to hold a port number and
> > 	// the output buffer is at least as big as the port data width.
> >
> > 		//intel p2x4
> > 		Result = GetSMBusBaseAddr( &BaseAddr, 0x8086 , 0x7113  ,0x90);
> >
> > 		if (Result != 0 )
> > 		{
> > 			flag=EnableICHSMBusController(0X8086,0x24c0,0xf2,&data);
> > 			// intel ich5 update 02.20.2003
> > 			Result = GetSMBusBaseAddr( &BaseAddr, 0x8086 , 0x24d3  ,0x20);
> > 			if(flag)
> > 				RestoreICHSMBusController(0X8086,0x24c0,0xf2,data);
> > 			if(Result==0)
> > 				ChipSetType=1;
> > 		}
> >
> > 		if (Result != 0 )
> > 		{
> > 			WRITE_PORT_UCHAR((PUCHAR)0x04b9, 0x08);  /* here!!! */
> > 			flag=EnableICHSMBusController(0X8086,0x24c0,0xf2,&data);
> > 			// intel ich5(Server) update 12.22.2003
> > 			Result = GetSMBusBaseAddr( &BaseAddr, 0x8086 , 0x25a4  ,0x20);
> > 			if(flag)
> > 				RestoreICHSMBusController(0X8086,0x24c0,0xf2,data);
> > 			if(Result==0)
> > 				ChipSetType=1;
> > 		}
> > .................
> > }
> >
> >
> > Chunhao
> > 2005-02-24
> >
> >
> > > -----Original Message-----
> > > From: PI14 HUANG0
> > > Sent: 2005年2月24日 14:25
> > > To: 'Rudolf Marek'; 'Jean Delvare'
> > > Cc: sensors at Stimpy.netroedge.com; PI10 LHHsu; PI14 DZSHEN; PI13 CFLi
> > > Subject: RE: A question when test W83792D driver on another motherboard
> > >
> > > Hi Rudolf, Jean
> > >
> > > Thank you for your reply.
> > >
> > > I will try the commands you gave me after a while, because the PC with
> > > that motherboard is under Windows now. after my test, then I will send you
> > > the output message in another mail.
> > >
> > > Our 792 Windows driver can NOT work on this motherboard either, one of
> > > my colleague is debugging it under Windows, and we also will contact ASUS
> > > with the questions you provided, then forward you the answer.
> > >
> > > Thanks
> > > Best Regards
> > > Chunhao
> > > 2005-02-24
> > >
> > >
> > >
> > > > -----Original Message-----
> > > > From: Rudolf Marek [mailto:R.Marek at sh.cvut.cz]
> > > > Sent: 2005年2月23日 19:21
> > > > To: PI14 HUANG0
> > > > Cc: sensors at Stimpy.netroedge.com; PI10 LHHsu; PI14 DZSHEN; PI13 CFLi
> > > > Subject: RE: A question when test W83792D driver on another motherboard
> > > >
> > > > Hello,
> > > >
> > > > Here is Rudolf speaking.
> > > > I'm the second person who played with hidden 792D.
> > > >
> > > > I think the function fails because nothing listens on that address.
> > > > (Khali/Jean can you confirm?)
> > > >
> > > > you can try:
> > > >
> > > > modprobe i2c-dev
> > > > i2cdetect -l
> > > >
> > > > You will see the bus number you will use in next command.
> > > >
> > > > i2cdetect 0
> > > >
> > > > 0 Is my bus number.
> > > >
> > > > This command will probe i2c addresses to find all clients.
> > > > If you will see XX on that address where should be 792D. Then it is
> > > > hidden.
> > > >
> > > > Asus put some simple multiplexer to hide it. We think they use GPIO lines
> > > > from superIO. Ask what lines to trigger to unhide it.
> > > > (Logical device and what GPIO line from that group)
> > > >
> > > > I hope this helps.
> > > >
> > > > Regards
> > > >
> > > > Rudolf
> > > >
> >
> >
> >
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