1 /*
2  * Copyright (c) 2015-2016 Quantenna Communications, Inc.
3  * All rights reserved.
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU General Public License
7  * as published by the Free Software Foundation; either version 2
8  * of the License, or (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  */
16 
17 #ifndef _QTN_FMAC_SHM_IPC_DEFS_H_
18 #define _QTN_FMAC_SHM_IPC_DEFS_H_
19 
20 #include <linux/types.h>
21 
22 #define QTN_IPC_REG_HDR_SZ	(32)
23 #define QTN_IPC_REG_SZ		(4096)
24 #define QTN_IPC_MAX_DATA_SZ	(QTN_IPC_REG_SZ - QTN_IPC_REG_HDR_SZ)
25 
26 enum qtnf_shm_ipc_region_flags {
27 	QTNF_SHM_IPC_NEW_DATA		= BIT(0),
28 	QTNF_SHM_IPC_ACK		= BIT(1),
29 };
30 
31 struct qtnf_shm_ipc_region_header {
32 	__le32 flags;
33 	__le16 data_len;
34 } __packed;
35 
36 union qtnf_shm_ipc_region_headroom {
37 	struct qtnf_shm_ipc_region_header hdr;
38 	u8 headroom[QTN_IPC_REG_HDR_SZ];
39 } __packed;
40 
41 struct qtnf_shm_ipc_region {
42 	union qtnf_shm_ipc_region_headroom headroom;
43 	u8 data[QTN_IPC_MAX_DATA_SZ];
44 } __packed;
45 
46 #endif /* _QTN_FMAC_SHM_IPC_DEFS_H_ */
47