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// Steering Wheel Remote |
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// |
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// Douglas Thrift |
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// |
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// $Id$ |
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|
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#include <iostream> |
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#include <string> |
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|
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#include <err.h> |
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#include <fcntl.h> |
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#include <sys/ioctl.h> |
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|
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#include <common.hpp> |
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#include <fdstream.hpp> |
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#include <foreach.hpp> |
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#include <posix.hpp> |
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#include <regex.hpp> |
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|
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struct Buttons |
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{ |
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// XXX: this is probably little endian! |
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enum Mask |
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{ |
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None = 0xfb00, |
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PlayPause = 0x0101, |
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Previous = 0x1010, |
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Next = 0x0808, |
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VolumeDown = 0x0c04, |
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VolumeUp = 0x0202 |
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}; |
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|
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private: |
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uint16_t buttons; |
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|
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public: |
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inline bool Pressed(Mask mask) const |
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{ |
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return ((buttons ^ None) & mask) == mask; |
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} |
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|
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inline operator uint16_t() const |
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{ |
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return buttons; |
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} |
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|
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friend std::istream &operator>>(std::istream &, Buttons &); |
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}; |
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|
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inline std::istream &operator>>(std::istream &input, Buttons &buttons) |
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{ |
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if (!input.ignore(3)) |
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return input; |
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|
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if (!input.read(reinterpret_cast<char *>(&buttons.buttons), sizeof (buttons.buttons))) |
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return input; |
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|
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return input.ignore(3); |
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} |
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|
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int Usage(const std::string &program) |
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{ |
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std::cout << _B("Usage: ") << program << _B(" [-debug] [-device=device]") << std::endl; |
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|
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return 1; |
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} |
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|
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int main(int argc, char *argv[]) |
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{ |
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bool debug(false); |
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std::string device; |
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|
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{ |
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Pcre::RegEx devicePath(_B("^-device=(/.+)$")); |
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Pcre::RegEx deviceNumber(_B("^-device=([0-9]+)$")); |
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Pcre::RegEx deviceName(_B("^-device=(.+)$")); |
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|
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_forall (int, index, 1, argc) |
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if (argv[index] == _B("-debug")) |
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debug = true; |
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else if (Pcre::RegEx::Match match = devicePath(argv[index])) |
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device = match[1]; |
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else if (Pcre::RegEx::Match match = deviceNumber(argv[index])) |
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device = _B("/dev/uhid") + match[1]; |
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else if (Pcre::RegEx::Match match = deviceName(argv[index])) |
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device = _B("/dev/") + match[1]; |
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else |
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return Usage(argv[0]); |
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} |
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|
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if (device.empty()) |
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return Usage(argv[0]); |
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|
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// if (!debug) |
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// Posix::CheckError(::daemon(0, 0)); |
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|
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ext::ifdstream uhid(Posix::CheckError(::open(device.c_str(), O_RDONLY))); |
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Buttons buttons; |
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|
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while (uhid >> buttons) |
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switch (buttons) |
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{ |
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case Buttons::None: |
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break; |
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default: |
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if (buttons.Pressed(Buttons::PlayPause)) |
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std::cout << _B("PlayPause "); |
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|
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if (buttons.Pressed(Buttons::Previous)) |
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std::cout << _B("Previous "); |
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|
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if (buttons.Pressed(Buttons::Next)) |
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std::cout << _B("Next "); |
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|
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if (buttons.Pressed(Buttons::VolumeDown)) |
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std::cout << _B("VolumeDown "); |
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|
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if (buttons.Pressed(Buttons::VolumeUp)) |
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std::cout << _B("VolumeUp"); |
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|
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std::cout << std::endl; |
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} |
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|
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return 0; |
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} |
