| /* | |
| $License: | |
| Copyright (C) 2011-2012 InvenSense Corporation, All Rights Reserved. | |
| See included License.txt for License information. | |
| $ | |
| */ | |
| /** | |
| * @defgroup Message_Layer message_layer | |
| * @brief Motion Library - Message Layer | |
| * Holds Low Occurance messages | |
| * | |
| * @{ | |
| * @file message_layer.c | |
| * @brief Holds Low Occurance Messages. | |
| */ | |
| #include "message_layer.h" | |
| #include "log.h" | |
| struct message_holder_t { | |
| long message; | |
| }; | |
| static struct message_holder_t mh; | |
| /** Sets a message. | |
| * @param[in] set The flags to set. | |
| * @param[in] clear Before setting anything this will clear these messages, | |
| * which is useful for mutually exclusive messages such | |
| * a motion or no motion message. | |
| * @param[in] level Level of the messages. It starts at 0, and may increase | |
| * in the future to allow more messages if the bit storage runs out. | |
| */ | |
| void inv_set_message(long set, long clear, int level) | |
| { | |
| if (level == 0) { | |
| mh.message &= ~clear; | |
| mh.message |= set; | |
| } | |
| } | |
| /** Returns Message Flags for Level 0 Messages. | |
| * Levels are to allow expansion of more messages in the future. | |
| * @param[in] clear If set, will clear the message. Typically this will be set | |
| * for one reader, so that you don't get the same message over and over. | |
| * @return bit field to corresponding message. | |
| */ | |
| long inv_get_message_level_0(int clear) | |
| { | |
| long msg; | |
| msg = mh.message; | |
| if (clear) { | |
| mh.message = 0; | |
| } | |
| return msg; | |
| } | |
| /** | |
| * @} | |
| */ |