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Diffstat (limited to 'drivers/misc/mei/interface.h')
-rw-r--r--drivers/misc/mei/interface.h18
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/misc/mei/interface.h b/drivers/misc/mei/interface.h
index ddff5d16616..fb5c7db4723 100644
--- a/drivers/misc/mei/interface.h
+++ b/drivers/misc/mei/interface.h
@@ -41,14 +41,28 @@ int mei_write_message(struct mei_device *dev,
unsigned char *write_buffer,
unsigned long write_length);
-int mei_host_buffer_is_empty(struct mei_device *dev);
+bool mei_hbuf_is_empty(struct mei_device *dev);
+
+int mei_hbuf_empty_slots(struct mei_device *dev);
+
+static inline size_t mei_hbuf_max_data(const struct mei_device *dev)
+{
+ return dev->hbuf_depth * sizeof(u32) - sizeof(struct mei_msg_hdr);
+}
+
+/* get slots (dwords) from a message length + header (bytes) */
+static inline unsigned char mei_data2slots(size_t length)
+{
+ return DIV_ROUND_UP(sizeof(struct mei_msg_hdr) + length, 4);
+}
int mei_count_full_read_slots(struct mei_device *dev);
-int mei_count_empty_write_slots(struct mei_device *dev);
int mei_flow_ctrl_creds(struct mei_device *dev, struct mei_cl *cl);
+
+
int mei_wd_send(struct mei_device *dev);
int mei_wd_stop(struct mei_device *dev, bool preserve);
int mei_wd_host_init(struct mei_device *dev);