drivers/net/wireless/quantenna/qtnfmac/shm_ipc_defs.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */
   3
   4 #ifndef _QTN_FMAC_SHM_IPC_DEFS_H_
   5 #define _QTN_FMAC_SHM_IPC_DEFS_H_
   6
   7 #include <linux/types.h>
   8
   9 #define QTN_IPC_REG_HDR_SZ      (32)
  10 #define QTN_IPC_REG_SZ          (4096)
  11 #define QTN_IPC_MAX_DATA_SZ     (QTN_IPC_REG_SZ - QTN_IPC_REG_HDR_SZ)
  12
  13 enum qtnf_shm_ipc_region_flags {
  14         QTNF_SHM_IPC_NEW_DATA           = BIT(0),
  15         QTNF_SHM_IPC_ACK                = BIT(1),
  16 };
  17
  18 struct qtnf_shm_ipc_region_header {
  19         __le32 flags;
  20         __le16 data_len;
  21 } __packed;
  22
  23 union qtnf_shm_ipc_region_headroom {
  24         struct qtnf_shm_ipc_region_header hdr;
  25         u8 headroom[QTN_IPC_REG_HDR_SZ];
  26 } __packed;
  27
  28 struct qtnf_shm_ipc_region {
  29         union qtnf_shm_ipc_region_headroom headroom;
  30         u8 data[QTN_IPC_MAX_DATA_SZ];
  31 } __packed;
  32
  33 #endif /* _QTN_FMAC_SHM_IPC_DEFS_H_ */