feat(rss): add new comms protocols
The current comms protocol (where arguments and return data is embedded
into the MHU message) is now protocol v0. Protocol v1 embeds pointers
into the message, and has the RSS retrieve the data via DMA.
Change-Id: I08d7f09c4eaea673769fde9eee194447a99f1b78
Signed-off-by: Raef Coles <raef.coles@arm.com>
diff --git a/include/drivers/arm/mhu.h b/include/drivers/arm/mhu.h
index 7745bd9..31c6a81 100644
--- a/include/drivers/arm/mhu.h
+++ b/include/drivers/arm/mhu.h
@@ -76,4 +76,11 @@
*/
enum mhu_error_t mhu_receive_data(uint8_t *receive_buffer, size_t *size);
+/**
+ * Gets the maximum amount of bytes that can be transmitted in a single send by MHU.
+ *
+ * Returns The amount of bytes that can be sent or received in a single message.
+ */
+size_t mhu_get_max_message_size(void);
+
#endif /* MHU_H */