]> Pileus Git - ~andy/linux/blob - drivers/staging/csr/csr_wifi_hip_conversions.h
Merge tag 'arm64-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas...
[~andy/linux] / drivers / staging / csr / csr_wifi_hip_conversions.h
1 /*****************************************************************************
2
3             (c) Cambridge Silicon Radio Limited 2011
4             All rights reserved and confidential information of CSR
5
6             Refer to LICENSE.txt included with this source for details
7             on the license terms.
8
9 *****************************************************************************/
10
11 /*
12  * ---------------------------------------------------------------------------
13  *
14  * FILE: csr_wifi_hip_conversions.h
15  *
16  * PURPOSE:
17  *      This header file provides the macros for converting to and from
18  *      wire format.
19  *      These macros *MUST* work for little-endian AND big-endian hosts.
20  *
21  * ---------------------------------------------------------------------------
22  */
23 #ifndef __CSR_WIFI_HIP_CONVERSIONS_H__
24 #define __CSR_WIFI_HIP_CONVERSIONS_H__
25
26 #define SIZEOF_UINT16           2
27 #define SIZEOF_UINT32           4
28 #define SIZEOF_UINT64           8
29
30 #define SIZEOF_SIGNAL_HEADER    6
31 #define SIZEOF_DATAREF          4
32
33
34 /*
35  * Macro to retrieve the signal ID from a wire-format signal.
36  */
37 #define GET_SIGNAL_ID(_buf)     CSR_GET_UINT16_FROM_LITTLE_ENDIAN((_buf))
38
39 /*
40  * Macros to retrieve and set the DATAREF fields in a packed (i.e. wire-format)
41  * HIP signal.
42  */
43 #define GET_PACKED_DATAREF_SLOT(_buf, _ref)                             \
44     CSR_GET_UINT16_FROM_LITTLE_ENDIAN(((_buf) + SIZEOF_SIGNAL_HEADER + ((_ref) * SIZEOF_DATAREF) + 0))
45
46 #define GET_PACKED_DATAREF_LEN(_buf, _ref)                              \
47     CSR_GET_UINT16_FROM_LITTLE_ENDIAN(((_buf) + SIZEOF_SIGNAL_HEADER + ((_ref) * SIZEOF_DATAREF) + 2))
48
49 #define SET_PACKED_DATAREF_SLOT(_buf, _ref, _slot)                      \
50     CSR_COPY_UINT16_TO_LITTLE_ENDIAN((_slot), ((_buf) + SIZEOF_SIGNAL_HEADER + ((_ref) * SIZEOF_DATAREF) + 0))
51
52 #define SET_PACKED_DATAREF_LEN(_buf, _ref, _len)                        \
53     CSR_COPY_UINT16_TO_LITTLE_ENDIAN((_len), ((_buf) + SIZEOF_SIGNAL_HEADER + ((_ref) * SIZEOF_DATAREF) + 2))
54
55 #define GET_PACKED_MA_PACKET_REQUEST_FRAME_PRIORITY(_buf)              \
56     CSR_GET_UINT16_FROM_LITTLE_ENDIAN(((_buf) + SIZEOF_SIGNAL_HEADER + UNIFI_MAX_DATA_REFERENCES * SIZEOF_DATAREF + 8))
57
58 #define GET_PACKED_MA_PACKET_REQUEST_HOST_TAG(_buf)                     \
59     CSR_GET_UINT32_FROM_LITTLE_ENDIAN(((_buf) + SIZEOF_SIGNAL_HEADER + UNIFI_MAX_DATA_REFERENCES * SIZEOF_DATAREF + 4))
60
61 #define GET_PACKED_MA_PACKET_CONFIRM_HOST_TAG(_buf)                     \
62     CSR_GET_UINT32_FROM_LITTLE_ENDIAN(((_buf) + SIZEOF_SIGNAL_HEADER + UNIFI_MAX_DATA_REFERENCES * SIZEOF_DATAREF + 8))
63
64 #define GET_PACKED_MA_PACKET_CONFIRM_TRANSMISSION_STATUS(_buf)                     \
65     CSR_GET_UINT16_FROM_LITTLE_ENDIAN(((_buf) + SIZEOF_SIGNAL_HEADER + UNIFI_MAX_DATA_REFERENCES * SIZEOF_DATAREF + 2))
66
67
68 s32 get_packed_struct_size(const u8 *buf);
69 CsrResult read_unpack_signal(const u8 *ptr, CSR_SIGNAL *sig);
70 CsrResult write_pack(const CSR_SIGNAL *sig, u8 *ptr, u16 *sig_len);
71
72 #endif /* __CSR_WIFI_HIP_CONVERSIONS_H__ */
73