1 /*
2  * PCC (Platform Communications Channel) methods
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License
6  * as published by the Free Software Foundation; version 2
7  * of the License.
8  */
9 
10 #ifndef _PCC_H
11 #define _PCC_H
12 
13 #include <linux/mailbox_controller.h>
14 #include <linux/mailbox_client.h>
15 
16 #define MAX_PCC_SUBSPACES	256
17 #ifdef CONFIG_PCC
18 extern struct mbox_chan *pcc_mbox_request_channel(struct mbox_client *cl,
19 						  int subspace_id);
20 extern void pcc_mbox_free_channel(struct mbox_chan *chan);
21 #else
pcc_mbox_request_channel(struct mbox_client * cl,int subspace_id)22 static inline struct mbox_chan *pcc_mbox_request_channel(struct mbox_client *cl,
23 							 int subspace_id)
24 {
25 	return ERR_PTR(-ENODEV);
26 }
pcc_mbox_free_channel(struct mbox_chan * chan)27 static inline void pcc_mbox_free_channel(struct mbox_chan *chan) { }
28 #endif
29 
30 #endif /* _PCC_H */
31