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root/truck/DashInterface/Display.cpp

Comparing:
SteeringWheelRemote/Audacious.cpp (file contents), Revision 6 by douglas, 2007-05-06T21:04:16-07:00 vs.
DashInterface/Display.cpp (file contents), Revision 28 by douglas, 2008-02-25T21:13:59-08:00

#	Line 1 | Line 1
1	<	// Beep Remote
1	>	// Display (Crystalfontz CFA-635 USB LCD)
2		//
3		// Douglas Thrift
4		//
5		// $Id$
6
7	<	#include <audacious/beepctrl.h>
7	>	#include <foreach.hpp>
8
9	<	#include "Audacious.hpp"
9	>	#include <iostream>
10
11	<	void Audacious::Playlist(char **list, int size, bool enqueue)
11	>	#include <fcntl.h>
12	>	#include <termios.h>
13	>
14	>	#include "Display.hpp"
15	>
16	>	extern bool debug;
17	>
18	>	static uint16_t GetCRC(uint8_t *buffer, size_t length)
19	>	{
20	>	static const uint16_t table[256] = {
21	>	0x00000,0x01189,0x02312,0x0329B,0x04624,0x057AD,0x06536,0x074BF,
22	>	0x08C48,0x09DC1,0x0AF5A,0x0BED3,0x0CA6C,0x0DBE5,0x0E97E,0x0F8F7,
23	>	0x01081,0x00108,0x03393,0x0221A,0x056A5,0x0472C,0x075B7,0x0643E,
24	>	0x09CC9,0x08D40,0x0BFDB,0x0AE52,0x0DAED,0x0CB64,0x0F9FF,0x0E876,
25	>	0x02102,0x0308B,0x00210,0x01399,0x06726,0x076AF,0x04434,0x055BD,
26	>	0x0AD4A,0x0BCC3,0x08E58,0x09FD1,0x0EB6E,0x0FAE7,0x0C87C,0x0D9F5,
27	>	0x03183,0x0200A,0x01291,0x00318,0x077A7,0x0662E,0x054B5,0x0453C,
28	>	0x0BDCB,0x0AC42,0x09ED9,0x08F50,0x0FBEF,0x0EA66,0x0D8FD,0x0C974,
29	>	0x04204,0x0538D,0x06116,0x0709F,0x00420,0x015A9,0x02732,0x036BB,
30	>	0x0CE4C,0x0DFC5,0x0ED5E,0x0FCD7,0x08868,0x099E1,0x0AB7A,0x0BAF3,
31	>	0x05285,0x0430C,0x07197,0x0601E,0x014A1,0x00528,0x037B3,0x0263A,
32	>	0x0DECD,0x0CF44,0x0FDDF,0x0EC56,0x098E9,0x08960,0x0BBFB,0x0AA72,
33	>	0x06306,0x0728F,0x04014,0x0519D,0x02522,0x034AB,0x00630,0x017B9,
34	>	0x0EF4E,0x0FEC7,0x0CC5C,0x0DDD5,0x0A96A,0x0B8E3,0x08A78,0x09BF1,
35	>	0x07387,0x0620E,0x05095,0x0411C,0x035A3,0x0242A,0x016B1,0x00738,
36	>	0x0FFCF,0x0EE46,0x0DCDD,0x0CD54,0x0B9EB,0x0A862,0x09AF9,0x08B70,
37	>	0x08408,0x09581,0x0A71A,0x0B693,0x0C22C,0x0D3A5,0x0E13E,0x0F0B7,
38	>	0x00840,0x019C9,0x02B52,0x03ADB,0x04E64,0x05FED,0x06D76,0x07CFF,
39	>	0x09489,0x08500,0x0B79B,0x0A612,0x0D2AD,0x0C324,0x0F1BF,0x0E036,
40	>	0x018C1,0x00948,0x03BD3,0x02A5A,0x05EE5,0x04F6C,0x07DF7,0x06C7E,
41	>	0x0A50A,0x0B483,0x08618,0x09791,0x0E32E,0x0F2A7,0x0C03C,0x0D1B5,
42	>	0x02942,0x038CB,0x00A50,0x01BD9,0x06F66,0x07EEF,0x04C74,0x05DFD,
43	>	0x0B58B,0x0A402,0x09699,0x08710,0x0F3AF,0x0E226,0x0D0BD,0x0C134,
44	>	0x039C3,0x0284A,0x01AD1,0x00B58,0x07FE7,0x06E6E,0x05CF5,0x04D7C,
45	>	0x0C60C,0x0D785,0x0E51E,0x0F497,0x08028,0x091A1,0x0A33A,0x0B2B3,
46	>	0x04A44,0x05BCD,0x06956,0x078DF,0x00C60,0x01DE9,0x02F72,0x03EFB,
47	>	0x0D68D,0x0C704,0x0F59F,0x0E416,0x090A9,0x08120,0x0B3BB,0x0A232,
48	>	0x05AC5,0x04B4C,0x079D7,0x0685E,0x01CE1,0x00D68,0x03FF3,0x02E7A,
49	>	0x0E70E,0x0F687,0x0C41C,0x0D595,0x0A12A,0x0B0A3,0x08238,0x093B1,
50	>	0x06B46,0x07ACF,0x04854,0x059DD,0x02D62,0x03CEB,0x00E70,0x01FF9,
51	>	0x0F78F,0x0E606,0x0D49D,0x0C514,0x0B1AB,0x0A022,0x092B9,0x08330,
52	>	0x07BC7,0x06A4E,0x058D5,0x0495C,0x03DE3,0x02C6A,0x01EF1,0x00F78,
53	>	};
54	>	register uint16_t crc(0xffff);
55	>
56	>	while (length--)
57	>	crc = (crc >> 8) ^ table[(crc ^ *buffer++) & 0xff];
58	>
59	>	return ~crc;
60	>	}
61	>
62	>	Display::Packet::Packet(Display::Packet::Command command, uint8_t length, const uint8_t *data) : command(command), length(length)
63	>	{
64	>	if (length > sizeof (this->data))
65	>	throw;
66	>
67	>	::memcpy(this->data, data, length);
68	>
69	>	crc = GetCRC(reinterpret_cast<uint8_t *>(this), length + 2);
70	>	}
71	>
72	>	void operator<<(int fd, const Display::Packet::Packet &packet)
73	>	{
74	>	if (packet.length != sizeof (packet.data))
75	>	::memcpy(const_cast<uint8_t *>(packet.data) + packet.length, &packet.crc, 2);
76	>
77	>	Posix::Write(fd, &packet, packet.length + 4);
78	>	}
79	>
80	>	void operator>>(int fd, Display::Packet::Packet &packet)
81		{
82	<	::xmms_remote_playlist(session, list, size, enqueue);
82	>	Posix::Read(fd, &packet, 2);
83	>	Posix::Read(fd, packet.data, packet.length);
84	>	Posix::Read(fd, &packet.crc, 2);
85	>
86	>	if (debug)
87	>	{
88	>	char *data;
89	>
90	>	::asprintf(&data, "0x%02x %i ", packet.command, packet.length);
91	>
92	>	std::cerr << data << '[' << packet.GetData() << ']' << std::endl;
93	>
94	>	std::free(data);
95	>	}
96		}
97
98	<	int Audacious::GetVersion() const
98	>	Display::Display(const std::string &device) : ucom(Posix::Open(device, O_RDWR | O_NOCTTY))
99		{
100	<	return ::xmms_remote_get_version(session);
100	>	::termios state;
101	>
102	>	Posix::CheckError(::tcgetattr(ucom, &state));
103	>	Posix::CheckError(::cfsetospeed(&state, B115200));
104	>	Posix::CheckError(::cfsetispeed(&state, B115200));
105	>
106	>	state.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | INPCK | ISTRIP | INLCR | IGNCR | ICRNL | IXON | IXOFF);
107	>	state.c_iflag |= IGNPAR;
108	>	state.c_oflag &= ~(OPOST | ONLCR | ONOCR | ONLRET);
109	>	state.c_cflag &= ~(CSIZE | PARENB | PARODD | HUPCL | CRTSCTS);
110	>	state.c_cflag |= CREAD | CS8 | CSTOPB | CLOCAL;
111	>	state.c_lflag &= ~(ISIG | ICANON | IEXTEN | ECHO);
112	>	state.c_lflag |= NOFLSH;
113	>
114	>	Posix::CheckError(::tcsetattr(ucom, TCSANOW, &state));
115		}
116
117	<	int Audacious::GetMainVolume() const
117	>	Display::Packet Display::Communicate(Display::Packet::Command command, uint8_t length, const uint8_t *data)
118		{
119	<	return ::xmms_remote_get_main_volume(session);
119	>	Packet packet(command, length, data), response;
120	>
121	>	ucom << packet;
122	>
123	>	_forever
124	>	{
125	>	ucom >> response;
126	>
127	>	if (packet.command | Packet::Response == response.command)
128	>	return response;
129	>
130	>	switch (response.command)
131	>	{
132	>	case Packet::KeyActivity:
133	>	keyActivity.push(response);
134	>
135	>	break;
136	>	case Packet::FanSpeedReport:
137	>	case Packet::TemperatureSensorReport:
138	>	break;
139	>	}
140	>	}
141		}
142
143	<	void Audacious::SetMainVolume(int volume)
143	>	bool Display::Ping(const std::string &data)
144		{
145	<	::xmms_remote_set_main_volume(session, volume);
145	>	return data == Communicate(Packet::PingCommand, data).GetData();
146		}
147
148	<	void Audacious::PlaylistPrevious()
148	>	std::string Display::Version()
149		{
150	<	::xmms_remote_playlist_prev(session);
150	>	return Communicate(Packet::GetHardwareAndFirmwareVersion).GetData();
151		}
152
153	<	void Audacious::PlaylistNext()
153	>	void Display::SetCursorPosition(uint8_t column, uint8_t row)
154		{
155	<	::xmms_remote_playlist_next(session);
155	>	const uint8_t data[] = { column, row };
156	>
157	>	Communicate(Packet::SetLCDCursorPosition, 2, data);
158		}
159
160	<	bool Audacious::IsRunning() const
160	>	void Display::SetCursorStyle(Display::CursorStyle style)
161		{
162	<	return ::xmms_remote_is_running(session);
162	>	uint8_t data(style);
163	>
164	>	Communicate(Packet::SetLCDCursorStyle, 1, &data);
165		}
166
167	<	void Audacious::PlayPause()
167	>	void Display::KeyReporting(uint8_t press, uint8_t release)
168		{
169	<	::xmms_remote_play_pause(session);
169	>	const uint8_t data[] = { press, release };
170	>
171	>	Communicate(Packet::ConfigureKeyReporting, 2, data);
172		}

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