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#include <dev/ofw/openfirm.h>
#include <dev/ofw/ofw_graph.h>
The ofw_graph functions are helpers to parse the DTS graph bindings
ofw_graph_get_port_by_idx() return the port with id idx. It will first check node named port@idx and then fallback on checking the ports child for a child node matching the id. If no ports matching idx is found the function return 0.
ofw_graph_port_get_num_endpoints() returns the number of endpoints a port node have.
ofw_graph_get_endpoint_by_idx() return the endpoint with id idx. It will first check if there is a single child named endpoint and returns it if there is. If there is multiple endpoints it will check the reg property and returns the correct phandle_t or 0 if none match.
ofw_graph_get_remote_endpoint() returns the remote-endpoint property if it exists or 0.
ofw_graph_get_remote_parent() returns the device node corresponding to the remote-endpoint phandle or 0 if none. ofw_graph_get_device_by_port_ep() returns the device associated with the port and endpoint or NULL if none. The device driver should have called OF_device_register_xref() before. ()
| ofw_graph (9) | April 10, 2019 |
| Main index | Section 9 | Options |
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