Книга: Microsoft Windows Embedded CE 6.0 Exam Preparation Kit
Kernel Independent Transport Layer
Kernel Independent Transport Layer
The OEMInit function is the main OAL routine that initializes board-specific peripherals, sets up the kernel variables, and starts KITL by passing a KITL IOCTL to the kernel. If you added and enabled KITL in the run-time image, the kernel starts KITL for debugging over different transport layers, as discussed in Chapter 4, "Debugging and Testing the System."
Table 5-6 lists the functions that the OAL must include to enable KITL support on a new platform.
Table 5-6 KITL support functions
| Function | Description |
|---|---|
| OEMKitlInit | Initializes KITL. |
| OEMKitlGetSecs | Returns the current time in seconds. |
| TransportDecode | Decodes recevied frames. |
| TransportEnableInt | Enables or disables KITL interrupt if it is interrupt based. |
| TransportEncode | Encodes data accroding the transport's required frame structure. |
| TransportGetDevCfg | Retrieves the device's KITL transport configuration. |
| TransportReceive | Receives a frame from the transport. |
| TransportSend | Sends a frame using the transport. |
| KitlInit | Initializes KITL system. |
| KitlSendRawData | Sends raw data using the transport bypassing the protocol. |
| KitlSetTimerCallback | Registers a callback that is called after a specified amount of time. |
| KitlStopTimerCallback | Disables a timer used by the above routine. |
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