Thanks for your telling first.
>The easiest way is usually to put the driver in your source tree
>and compile everything together. That also makes it easier to
>distribute the complete source tree to your users.
Sorry that I am a novice in Linux. I don't know how can I put the driver in
my source tree and compile everything together. It looks like that there is
no option in the menuconfig to choose a specially customed peripheral. So I
think I only can include the customed peripheral as a module. Could you
please say in a detail on how to do that?
> > insmod: unresolved symbol XIo_In32
> > insmod: unresolved symbol XIO_Out32
>
>that looks like part of your module is missing. Try to find where thses
>functions are defined in there and why that isn't compiled.
It's very strange because I have checked the source. In the header file of
xio.h, there are the following sentences,
/************************** Function Prototypes
******************************/
/* The following functions allow the software to be transportable across
* processors which may use memory mapped I/O or I/O which is mapped into a
* seperate address space such as X86. The functions are better suited for
* debugging and are therefore the default implementation. Macros can
instead
* be used if USE_IO_MACROS is defined.
*/
#ifndef USE_IO_MACROS
/* Functions */
Xuint8 XIo_In8(XIo_Address InAddress);
Xuint16 XIo_In16(XIo_Address InAddress);
Xuint32 XIo_In32(XIo_Address InAddress);
void XIo_Out8(XIo_Address OutAddress, Xuint8 Value);
void XIo_Out16(XIo_Address OutAddress, Xuint16 Value);
void XIo_Out32(XIo_Address OutAddress, Xuint32 Value);
#else
/* The following macros allow optimized I/O operations for memory mapped
I/O
* Note that the SYNCHRONIZE_IO may be moved by the compiler during
* optimization.
*/
#define XIo_In8(InputPtr) (*(volatile Xuint8 *)(InputPtr));
SYNCHRONIZE_IO;
#define XIo_In16(InputPtr) (*(volatile Xuint16 *)(InputPtr));
SYNCHRONIZE_IO;
#define XIo_In32(InputPtr) (*(volatile Xuint32 *)(InputPtr));
SYNCHRONIZE_IO;
#define XIo_Out8(OutputPtr, Value) \
{ (*(volatile Xuint8 *)(OutputPtr) = Value); SYNCHRONIZE_IO; }
#define XIo_Out16(OutputPtr, Value) \
{ (*(volatile Xuint16 *)(OutputPtr) = Value); SYNCHRONIZE_IO; }
#define XIo_Out32(OutputPtr, Value) \
{ (*(volatile Xuint32 *)(OutputPtr) = Value); SYNCHRONIZE_IO; }
#endif
I think these are the defination of XIo_In32 and XIo_Out32. Also, during
the compilation, there is no error to complain that "XIo_In32 or XIo_Out32
undeclared".
More suggestions are appreciated. Thanks.
BR
Ming
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