From: Alexander Graf Date: Thu, 17 May 2012 10:47:57 +0000 (+0200) Subject: dt: add helpers for multi-cell adds X-Git-Tag: TizenStudio_2.0_p2.3.2~208^2~3973^2~40 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7ae2291e8e0f34ac520044c8af0437a701e1c967;p=sdk%2Femulator%2Fqemu.git dt: add helpers for multi-cell adds We have device tree helpers that allow us to create single cell (u32) wide properties. However, when creating properties that contain an array of cells, we need to jump through hoops, manually passing in an array with converted endianness. To ease the pain of this, create a generic macro helper that allows us to pass the cells as arguments. Signed-off-by: Alexander Graf Reviewed-by: Peter Crosthwaite --- diff --git a/device_tree.h b/device_tree.h index 4378685..1e671e2 100644 --- a/device_tree.h +++ b/device_tree.h @@ -25,4 +25,16 @@ int qemu_devtree_setprop_string(void *fdt, const char *node_path, int qemu_devtree_nop_node(void *fdt, const char *node_path); int qemu_devtree_add_subnode(void *fdt, const char *name); +#define qemu_devtree_setprop_cells(fdt, node_path, property, ...) \ + do { \ + uint32_t qdt_tmp[] = { __VA_ARGS__ }; \ + int i; \ + \ + for (i = 0; i < ARRAY_SIZE(qdt_tmp); i++) { \ + qdt_tmp[i] = cpu_to_be32(qdt_tmp[i]); \ + } \ + qemu_devtree_setprop(fdt, node_path, property, qdt_tmp, \ + sizeof(qdt_tmp)); \ + } while (0) + #endif /* __DEVICE_TREE_H__ */