Method ioctl

source/kernel/devs/devinput.cpp:213–327

}

U32 DevInput::ioctl(KThread* thread, U32 request) {
    CPU* cpu = thread->cpu;
    U32 cmd = request & 0xFFFF;
    KMemory* memory = thread->memory;

    switch (cmd) {
        case 0x4501: { // EVIOCGVERSION
            U32 len = (request & 0x1fff0000) >> 16;
            U32 buffer = IOCTL_ARG1;
            if (len<4)
                kpanic_fmt("Bad length for EVIOCGVERSION: %d", len);
            memory->writed(buffer, this->version);
            return 4;
        }
        case 0x4502: { // EVIOCGID
//            struct input_id {
//                __u16 bustype;
//                __u16 vendor;
//                __u16 product;
//                __u16 version;
//                };
            U32 len = (request & 0x1fff0000) >> 16;
            U32 buffer = IOCTL_ARG1;
            if (len!=8)
                kpanic_fmt("Bad length for EVIOCGID: %d",len);
            memory->writew(buffer, this->bustype);
            memory->writew(buffer + 2, this->vendor);
            memory->writew(buffer + 4, this->product);
            memory->writew(buffer + 6, this->version);
            return 0;
        }
        case 0x4506: { // EVIOCGNAME
            U32 len = (request & 0x1fff0000) >> 16;
            U32 buffer = IOCTL_ARG1;
            U32 todo = std::min((U32)name.length(), len);
            memory->memcpy(buffer, this->name.c_str(), todo);
            return todo;
        }
       case 0x4507: { // EVIOCGPHYS
            U32 len = (request & 0x1fff0000) >> 16;
            U32 buffer = IOCTL_ARG1;
            U32 todo = std::min((U32)name.length(), len);
            memory->memcpy(buffer, this->name.c_str(), todo);
            return todo;
        }
        case 0x4508: { //  EVIOCGUNIQ
            U32 len = (request & 0x1fff0000) >> 16;
            U32 buffer = IOCTL_ARG1;
            U32 todo = std::min((U32)name.length(), len);
            memory->memcpy(buffer, this->name.c_str(), todo);
            return todo;
        }
        case 0x4509: { // EVIOCGPROP
            U32 len = (request & 0x1fff0000) >> 16;
            U32 buffer = IOCTL_ARG1;
            if (len<4)
                kpanic_fmt("Bad length for EVIOCGBIT: %d", len);
            memory->writed(buffer, this->prop);