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a8f0bd18 LOK |
1 | #pragma once |
2 | /* | |
3 | * This file is part of the libCEC(R) library. | |
4 | * | |
5 | * libCEC(R) is Copyright (C) 2011 Pulse-Eight Limited. All rights reserved. | |
6 | * libCEC(R) is an original work, containing original code. | |
7 | * | |
8 | * libCEC(R) is a trademark of Pulse-Eight Limited. | |
9 | * | |
10 | * This program is dual-licensed; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
23 | * | |
24 | * | |
25 | * Alternatively, you can license this library under a commercial license, | |
26 | * please contact Pulse-Eight Licensing for more information. | |
27 | * | |
28 | * For more information contact: | |
29 | * Pulse-Eight Licensing <license@pulse-eight.com> | |
30 | * http://www.pulse-eight.com/ | |
31 | * http://www.pulse-eight.net/ | |
32 | */ | |
33 | ||
761dcc45 | 34 | #include <cectypes.h> |
b9187cc6 | 35 | #include "platform/threads.h" |
50aa01e6 | 36 | #include "util/buffer.h" |
25701fa6 | 37 | #include <string> |
a8f0bd18 LOK |
38 | |
39 | namespace CEC | |
40 | { | |
220537f2 LOK |
41 | class CCECAdapterMessage |
42 | { | |
43 | public: | |
44 | CCECAdapterMessage(void) {} | |
45 | CCECAdapterMessage(const cec_command &command) | |
46 | { | |
47 | clear(); | |
48 | ||
49 | //set ack polarity to high when transmitting to the broadcast address | |
50 | //set ack polarity low when transmitting to any other address | |
51 | push_back(MSGSTART); | |
52 | push_escaped(MSGCODE_TRANSMIT_ACK_POLARITY); | |
53 | if (command.destination == CECDEVICE_BROADCAST) | |
54 | push_escaped(CEC_TRUE); | |
55 | else | |
56 | push_escaped(CEC_FALSE); | |
57 | push_back(MSGEND); | |
58 | ||
59 | // add source and destination | |
60 | push_back(MSGSTART); | |
61 | push_escaped(MSGCODE_TRANSMIT); | |
62 | push_back(((uint8_t)command.initiator << 4) + (uint8_t)command.destination); | |
63 | push_back(MSGEND); | |
64 | ||
65 | // add opcode | |
66 | push_back(MSGSTART); | |
67 | push_escaped(command.parameters.empty() ? (uint8_t)MSGCODE_TRANSMIT_EOM : (uint8_t)MSGCODE_TRANSMIT); | |
68 | push_back((uint8_t) command.opcode); | |
69 | push_back(MSGEND); | |
70 | ||
71 | // add parameters | |
72 | for (int8_t iPtr = 0; iPtr < command.parameters.size; iPtr++) | |
73 | { | |
74 | push_back(MSGSTART); | |
75 | ||
76 | if (iPtr == command.parameters.size - 1) | |
77 | push_escaped( MSGCODE_TRANSMIT_EOM); | |
78 | else | |
79 | push_escaped(MSGCODE_TRANSMIT); | |
80 | ||
81 | push_escaped(command.parameters[iPtr]); | |
82 | ||
83 | push_back(MSGEND); | |
84 | } | |
85 | } | |
86 | ||
87 | CCECAdapterMessage &operator =(const CCECAdapterMessage &msg) | |
88 | { | |
89 | packet = msg.packet; | |
90 | return *this; | |
91 | } | |
92 | ||
93 | bool empty(void) const { return packet.empty(); } | |
94 | uint8_t operator[](uint8_t pos) const { return packet[pos]; } | |
95 | uint8_t at(uint8_t pos) const { return packet[pos]; } | |
96 | uint8_t size(void) const { return packet.size; } | |
97 | void clear(void) { packet.clear(); } | |
98 | void shift(uint8_t iShiftBy) { packet.shift(iShiftBy); } | |
99 | void push_back(uint8_t add) { packet.push_back(add); } | |
100 | cec_adapter_messagecode message(void) const { return packet.size >= 1 ? (cec_adapter_messagecode) (packet.at(0) & ~(MSGCODE_FRAME_EOM | MSGCODE_FRAME_ACK)) : MSGCODE_NOTHING; } | |
101 | bool eom(void) const { return packet.size >= 1 ? (packet.at(0) & MSGCODE_FRAME_EOM) != 0 : false; } | |
102 | bool ack(void) const { return packet.size >= 1 ? (packet.at(0) & MSGCODE_FRAME_ACK) != 0 : false; } | |
103 | cec_logical_address initiator(void) const { return packet.size >= 2 ? (cec_logical_address) (packet.at(1) >> 4) : CECDEVICE_UNKNOWN; }; | |
104 | cec_logical_address destination(void) const { return packet.size >= 2 ? (cec_logical_address) (packet.at(1) & 0xF) : CECDEVICE_UNKNOWN; }; | |
105 | void push_escaped(int16_t byte) | |
106 | { | |
107 | if (byte >= MSGESC && byte != MSGSTART) | |
108 | { | |
109 | push_back(MSGESC); | |
110 | push_back(byte - ESCOFFSET); | |
111 | } | |
112 | else | |
113 | push_back(byte); | |
114 | } | |
115 | ||
116 | cec_datapacket packet; | |
117 | }; | |
118 | ||
b9187cc6 | 119 | class CSerialPort; |
2abe74eb | 120 | class CLibCEC; |
a8f0bd18 | 121 | |
13fd6a66 | 122 | class CAdapterCommunication : private CThread |
a8f0bd18 LOK |
123 | { |
124 | public: | |
2abe74eb | 125 | CAdapterCommunication(CLibCEC *controller); |
828682d3 | 126 | virtual ~CAdapterCommunication(); |
a8f0bd18 | 127 | |
25701fa6 | 128 | bool Open(const char *strPort, uint16_t iBaudRate = 38400, uint32_t iTimeoutMs = 10000); |
220537f2 LOK |
129 | bool Read(CCECAdapterMessage &msg, uint32_t iTimeout = 1000); |
130 | bool Write(const CCECAdapterMessage &frame); | |
2abe74eb | 131 | bool PingAdapter(void); |
a8f0bd18 | 132 | void Close(void); |
13fd6a66 | 133 | bool IsOpen(void) const; |
a8f0bd18 LOK |
134 | std::string GetError(void) const; |
135 | ||
828682d3 | 136 | void *Process(void); |
2abe74eb LOK |
137 | |
138 | bool StartBootloader(void); | |
139 | bool SetAckMask(uint16_t iMask); | |
9dee1670 | 140 | |
a8f0bd18 | 141 | private: |
3c53ac93 | 142 | void WriteNextCommand(void); |
8bca69de | 143 | void AddData(uint8_t *data, uint8_t iLen); |
25701fa6 | 144 | bool ReadFromDevice(uint32_t iTimeout); |
a8f0bd18 | 145 | |
220537f2 LOK |
146 | CSerialPort * m_port; |
147 | CLibCEC * m_controller; | |
148 | CecBuffer<uint8_t> m_inBuffer; | |
149 | CecBuffer<CCECAdapterMessage> m_outBuffer; | |
150 | CMutex m_bufferMutex; | |
151 | CMutex m_commMutex; | |
152 | CCondition m_rcvCondition; | |
a8f0bd18 LOK |
153 | }; |
154 | }; |