115 lines
3.3 KiB
C
115 lines
3.3 KiB
C
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/*
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* Copyright (c) 2004-2011 Atheros Communications Inc.
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* Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef EPPING_H
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#define EPPING_H
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#include "htc.h"
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/* alignment to 4-bytes */
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#define EPPING_ALIGNMENT_PAD (((sizeof(struct htc_frame_hdr) + 3) & (~0x3)) \
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- sizeof(struct htc_frame_hdr))
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#define HCI_RSVD_EXPECTED_PKT_TYPE_RECV_OFFSET 7
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struct epping_header {
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/* reserved for HCI packet header (GMBOX) testing */
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u8 hcirsvd[8];
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/* stream no. to echo this packet on (filled by host) */
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u8 stream_echo_h;
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/* stream no. packet was echoed to (filled by target)
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When echoed: stream_echo_sent == stream_echo */
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u8 stream_echo_sent_t;
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/* stream no. that target received this packet on (filled by target) */
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u8 stream_recv_t;
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/* stream number to send on (filled by host) */
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u8 stream_no_h;
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/* magic number to filter for this packet on the host*/
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u8 magic_h[4];
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/* reserved fields that must be set to a "reserved" value
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since this packet maps to a 14-byte ethernet frame we want
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to make sure ethertype field is set to something unknown */
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u8 srsvd[6];
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/* padding for alignment */
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u8 pad[2];
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/* timestamp of packet (host or target) */
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u8 time_stamp[8];
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/* 4 byte host context, target echos this back */
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u32 host_context;
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/* sequence number (set by host or target) */
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u32 seq_no;
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/* ping command (filled by host) */
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u16 cmd_id_h;
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/* optional flags */
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u16 cmd_flags_h;
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/* buffer for command (host -> target) */
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u8 cmd_buffer_h[8];
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/* buffer for command (target -> host) */
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u8 cmd_buffer_t[8];
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/* length of data */
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u16 data_length;
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/* 16 bit CRC of data */
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u16 crc;
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/* header CRC (fields : StreamNo_h to end, minus HeaderCRC) */
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u16 header_crc;
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} __packed;
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#define EPPING_PING_MAGIC_0 0xAA
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#define EPPING_PING_MAGIC_1 0x55
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#define EPPING_PING_MAGIC_2 0xCE
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#define EPPING_PING_MAGIC_3 0xEC
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#define IS_EPPING_PACKET(pPkt) \
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(((pPkt)->magic_h[0] == EPPING_PING_MAGIC_0) && \
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((pPkt)->magic_h[1] == EPPING_PING_MAGIC_1) && \
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((pPkt)->magic_h[2] == EPPING_PING_MAGIC_2) && \
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((pPkt)->magic_h[3] == EPPING_PING_MAGIC_3))
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/* DataCRC field is valid */
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#define CMD_FLAGS_DATA_CRC (1 << 0)
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/* delay the echo of the packet */
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#define CMD_FLAGS_DELAY_ECHO (1 << 1)
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/* do not drop at HTC layer no matter what the stream is */
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#define CMD_FLAGS_NO_DROP (1 << 2)
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#define IS_EPING_PACKET_NO_DROP(pPkt) ((pPkt)->cmd_flags_h & CMD_FLAGS_NO_DROP)
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/* this number is higher than the define WMM AC classes so we
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can use this to distinguish packets */
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#define HCI_TRANSPORT_STREAM_NUM 16
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#endif /*EPPING_H*/
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