77 lines
2.0 KiB
C
77 lines
2.0 KiB
C
/* @@@LICENSE
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*
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* Copyright (c) 2008-2013 LG Electronics, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* LICENSE@@@ */
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#ifndef __LIB_PMUX_MUX_H
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#define __LIB_PMUX_MUX_H
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#include <sys/types.h>
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#include <inttypes.h>
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/* pmux definitions */
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#define PMUX_MAGIC 0x706d7578 /* 'pmux' */
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#define PMUX_VERSION 3 /* current version */
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#define PMUX_FLAG_ACK 1 /* this packet is an ack */
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struct pmux_header {
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uint32_t magic;
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uint8_t version;
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uint8_t _pad;
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uint16_t flags;
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uint32_t channel;
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uint32_t sequence;
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uint32_t payload_len;
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uint32_t total_len;
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uint32_t crc;
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uint8_t data[0];
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};
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/* control messages */
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enum pmux_control_message_op {
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PMUX_CONTROL_NONE = 0,
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PMUX_CONTROL_CHANNEL_CLOSED,
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PMUX_CONTROL_OPEN,
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PMUX_CONTROL_OPEN_COMMAND, /* open a channel with a command interpreter */
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PMUX_CONTROL_CLOSE,
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};
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struct pmux_control_header {
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uint32_t op;
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uint32_t channel;
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uint32_t len;
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uint8_t data[0];
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};
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enum pmux_channel_num {
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PMUX_CHANNEL_NULL, /* non channel, for when you actually dont want to send data */
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PMUX_CHANNEL_CONTROL, /* special control commands go over this channel */
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PMUX_CHANNEL_CMDSERVICE = 0x50, /* device service commands go over this channel */
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PMUX_CHANNEL_MAX_FIXED = 0xfff,
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PMUX_CHANNEL_HOST_BASE = 0x1000,
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PMUX_CHANNEL_MAX_HOST = 0x7fffffff,
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PMUX_CHANNEL_DEVICE_BASE = 0x80000000,
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PMUX_CHANNEL_MAX_DEVICE = 0xffffffff
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};
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#endif
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