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libopenbios: introduce BIND_NODE_METHODS() macro 

This macro is designed to bind C functions into Forth words during creation
of the device tree, but only into an existing node and without attempting
to create any missing parent nodes.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
This commit is contained in:
Mark Cave-Ayland 2019-08-18 21:16:50 +01:00
parent da2e55182a
commit ca13d318ef
2 changed files with 18 additions and 0 deletions
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8
include/libopenbios/bindings.h
View File

@ -127,6 +127,11 @@ typedef struct {
paths, 1, name##_m, sizeof(name##_m)/sizeof(method_t)); \
} while(0)
#define BIND_NODE_METHODS(ph, name) do { \
bind_node_methods(ph, name##_flags_, name##_size_, \
name##_m, sizeof(name##_m)/sizeof(method_t)); \
} while(0)
#define DECLARE_UNNAMED_NODE( name, flags, size ) \
static const int name##_flags_ = flags; \
static const int name##_size_ = size;
@ -144,6 +149,9 @@ static const method_t name##_m[]
name##_m, sizeof(name##_m)/sizeof(method_t) ); \
} while(0)
extern void
bind_node_methods(phandle_t ph, int flags, int size, const method_t *methods, int nmet);
extern void bind_node( int flags, int size, const char * const *paths, int npaths,
const method_t *methods, int nmethods );

10
libopenbios/bindings.c
View File

@ -484,6 +484,16 @@ add_methods( int flags, int size, const method_t *methods, int nmet )
make_openable(0);
}
void
bind_node_methods(phandle_t ph, int flags, int size, const method_t *methods, int nmet)
{
phandle_t save_ph = get_cur_dev();
activate_dev(ph);
add_methods(flags, size, methods, nmet);
activate_dev( save_ph );
}
void
bind_node( int flags, int size, const char * const *paths, int npaths,
const method_t *methods, int nmet )