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b43ea1bf18
This commit adds a generic udp protocol framework in the network loop. So protocol based on udp may be implemented without modifying the network loop (for example custom wait magic packet). Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com> Reviewed-by: Simon Glass <sjg@chromium.org>
36 lines
874 B
Plaintext
36 lines
874 B
Plaintext
Udp framework
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The udp framework is build on top of network framework and is designed
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to define new protocol or new command based on udp without modifying
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the network framework.
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The udp framework define a function udp_loop that take as argument
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a structure udp_ops (defined in include/net/udp.h) :
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struct udp_ops {
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int (*prereq)(void *data);
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int (*start)(void *data);
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void *data;
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};
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The callback prereq define if all the requirements are
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valid before running the network/udp loop.
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The callback start define the first step in the network/udp loop,
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and it may also be used to configure a timemout and udp handler.
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The pointer data is used to store private data that
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could be used by both callback.
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A simple example to use this framework:
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static struct udp_ops udp_ops = {
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.prereq = wmp_prereq,
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.start = wmp_start,
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.data = NULL,
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};
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...
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err = udp_loop(&udp_ops);
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