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| author | midipix <writeonce@midipix.org> | 2016-10-25 22:28:27 -0400 |
|---|---|---|
| committer | midipix <writeonce@midipix.org> | 2016-10-25 22:47:15 -0400 |
| commit | 39a81cdd7d7b44330451eefaf6daaac80fa8afa9 (patch) | |
| tree | 5703f6e9cee6215cd7a749fafcfc64d458cc018c | |
| parent | 1cf7fa03099e1a80385791f281a00622cf429296 (diff) | |
| download | sofort-39a81cdd7d7b44330451eefaf6daaac80fa8afa9.tar.bz2 sofort-39a81cdd7d7b44330451eefaf6daaac80fa8afa9.tar.xz | |
driver: internals: added the static inlined sfrt_get_driver_ictx() helper.
| -rw-r--r-- | src/internal/sofort_driver_impl.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/internal/sofort_driver_impl.h b/src/internal/sofort_driver_impl.h index 0808b55..4fdcf96 100644 --- a/src/internal/sofort_driver_impl.h +++ b/src/internal/sofort_driver_impl.h @@ -35,4 +35,17 @@ struct sfrt_unit_ctx_impl { struct sfrt_unit_ctx uctx; }; +static inline struct sfrt_driver_ctx_impl * sfrt_get_driver_ictx( + const struct sfrt_driver_ctx * dctx) +{ + uintptr_t addr; + + if (dctx) { + addr = (uintptr_t)dctx - offsetof(struct sfrt_driver_ctx_impl,ctx); + return (struct sfrt_driver_ctx_impl *)addr; + } + + return 0; +} + #endif |