7.2. Developing a Driver Using the Enhanced Chipset Support
When developing a driver for a device based on one of the enhanced-support
chipsets [7.1], you can use WinDriver's chipset-set
specific support in the following manner:
If your device is based on the Altera Qsys design or Xilinx BMD design, you can
generate customized code for the device by selecting this option in the
DriverWizard code generation options dialogue (see
Section 4.2, Step 6.a).
Alternatively, or if you are using another enhanced-support device, follow the
steps below to use one the enhanced-support WinDriver samples as the starting
point for your development:
-
Locate the sample diagnostics program for your device under the
WinDriver/chip_vendor/chip_name directory.
Most of the sample diagnostics programs are named
xxx_diag and their source code is normally
found under an xxx_diag subdirectory. The
program's executable is found under a subdirectory for your target
operating system (e.g., WIN32 for Windows.)
-
Run the custom diagnostics program to diagnose your device and familiarize
yourself with the options provided by the sample program.
-
Use the source code of the diagnostics program as your skeletal device
driver and modify the code, as needed, to suit your specific development
needs. When modifying the code, you can utilize the custom WinDriver API for
your specific chip. The custom API is typically found under the
WinDriver/chip_vendor/lib directory.
-
If the user-mode driver application that you created by following the steps
above contains parts that require enhanced performance (e.g., an interrupt
handler), you can move the relevant portions of your code to a Kernel
PlugIn driver for optimal performance, as explained in
Chapter 11.
