diff options
Diffstat (limited to 'include/fdtdec.h')
| -rw-r--r-- | include/fdtdec.h | 32 | 
1 files changed, 32 insertions, 0 deletions
| diff --git a/include/fdtdec.h b/include/fdtdec.h index 49251d59c..b6db0278b 100644 --- a/include/fdtdec.h +++ b/include/fdtdec.h @@ -349,3 +349,35 @@ int fdtdec_decode_gpio(const void *blob, int node, const char *prop_name,   * @return 0 if all ok or gpio was FDT_GPIO_NONE; -1 on error   */  int fdtdec_setup_gpio(struct fdt_gpio_state *gpio); + +/* + * Look up a property in a node and return its contents in a byte + * array of given length. The property must have at least enough data for + * the array (count bytes). It may have more, but this will be ignored. + * + * @param blob		FDT blob + * @param node		node to examine + * @param prop_name	name of property to find + * @param array		array to fill with data + * @param count		number of array elements + * @return 0 if ok, or -FDT_ERR_MISSING if the property is not found, + *		or -FDT_ERR_BADLAYOUT if not enough data + */ +int fdtdec_get_byte_array(const void *blob, int node, const char *prop_name, +		u8 *array, int count); + +/** + * Look up a property in a node and return a pointer to its contents as a + * byte array of given length. The property must have at least enough data + * for the array (count bytes). It may have more, but this will be ignored. + * The data is not copied. + * + * @param blob		FDT blob + * @param node		node to examine + * @param prop_name	name of property to find + * @param count		number of array elements + * @return pointer to byte array if found, or NULL if the property is not + *		found or there is not enough data + */ +const u8 *fdtdec_locate_byte_array(const void *blob, int node, +			     const char *prop_name, int count); |