openfirmware/Device.cc

/*
 * Copyright (c) 2008-2014, Pedigree Developers
 *
 * Please see the CONTRIB file in the root of the source tree for a full
 * list of contributors.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include "pedigree/kernel/machine/openfirmware/Device.h"
#include "pedigree/kernel/Log.h"
#include "pedigree/kernel/machine/openfirmware/OpenFirmware.h"

OFDevice::OFDevice(OFHandle handle) : m_Handle(handle)
{
}

OFDevice::~OFDevice()
{
}

void OFDevice::getProperty(const char *pProperty, NormalStaticString &buf)
{
    char buf2[64];
    OFParam ret = OpenFirmware::instance().call(
        "instance-to-package", 1, static_cast<OFParam>(m_Handle));
    if (reinterpret_cast<int>(ret) == -1)
        ret = static_cast<OFParam>(m_Handle);
    OpenFirmware::instance().call(
        "getprop", 4, ret,
        reinterpret_cast<OFParam>(const_cast<char *>(pProperty)),
        static_cast<OFParam>(buf2), reinterpret_cast<OFParam>(64));
    buf += buf2;
}

OFHandle OFDevice::getProperty(const char *pProperty)
{
    OFHandle h;
    OFParam ret = OpenFirmware::instance().call(
        "instance-to-package", 1, static_cast<OFParam>(m_Handle));
    if (reinterpret_cast<int>(ret) == -1)
        ret = static_cast<OFParam>(m_Handle);
    OpenFirmware::instance().call(
        "getprop", 4, ret,
        reinterpret_cast<OFParam>(const_cast<char *>(pProperty)),
        reinterpret_cast<OFParam>(&h),
        reinterpret_cast<OFParam>(sizeof(OFHandle)));
    return h;
}

int OFDevice::getProperty(const char *pProperty, void *buf, size_t bufLen)
{
    OFParam ret = OpenFirmware::instance().call(
        "instance-to-package", 1, static_cast<OFParam>(m_Handle));
    if (reinterpret_cast<int>(ret) == -1)
        ret = static_cast<OFParam>(m_Handle);
    return reinterpret_cast<int>(OpenFirmware::instance().call(
        "getprop", 4, ret,
        reinterpret_cast<OFParam>(const_cast<char *>(pProperty)),
        reinterpret_cast<OFParam>(buf), reinterpret_cast<OFParam>(bufLen)));
}

bool OFDevice::propertyExists(const char *pProperty)
{
    OFHandle h;
    OFParam ret = OpenFirmware::instance().call(
        "instance-to-package", 1, static_cast<OFParam>(m_Handle));
    if (reinterpret_cast<int>(ret) == -1)
        ret = static_cast<OFParam>(m_Handle);
    return OpenFirmware::instance().call(
               "getprop", 4, ret,
               reinterpret_cast<OFParam>(const_cast<char *>(pProperty)),
               reinterpret_cast<OFParam>(&h),
               reinterpret_cast<OFParam>(sizeof(OFHandle))) !=
           reinterpret_cast<OFHandle>(-1);
}

OFHandle OFDevice::getParent()
{
    OFParam ret = OpenFirmware::instance().call(
        "instance-to-package", 1, static_cast<OFParam>(m_Handle));
    if (reinterpret_cast<int>(ret) == -1)
        ret = static_cast<OFParam>(m_Handle);
    return static_cast<OFHandle>(OpenFirmware::instance().call(
        "parent", 1, reinterpret_cast<OFParam>(ret)));
}

int OFDevice::getPropertyLength(const char *pProperty)
{
    OFParam ret = OpenFirmware::instance().call(
        "instance-to-package", 1, static_cast<OFParam>(m_Handle));
    if (reinterpret_cast<int>(ret) == -1)
        ret = static_cast<OFParam>(m_Handle);
    return reinterpret_cast<int>(OpenFirmware::instance().call(
        "getproplen", 2, ret,
        reinterpret_cast<OFParam>(const_cast<char *>(pProperty))));
}

int OFDevice::getNextProperty(const char *pPrevious, const char *pNext)
{
    // Requires a phandle.
    OFParam ret = OpenFirmware::instance().call(
        "instance-to-package", 1, static_cast<OFParam>(m_Handle));
    if (reinterpret_cast<int>(ret) == -1)
        ret = static_cast<OFParam>(m_Handle);
    return reinterpret_cast<int>(OpenFirmware::instance().call(
        "nextprop", 3, ret,
        reinterpret_cast<OFParam>(const_cast<char *>(pPrevious)),
        reinterpret_cast<OFParam>(const_cast<char *>(pNext))));
}

void OFDevice::setProperty(const char *pProperty, NormalStaticString &val)
{
}

OFHandle OFDevice::executeMethod(
    const char *method, size_t nArgs, OFParam p1, OFParam p2, OFParam p3,
    OFParam p4, OFParam p5, OFParam p6)
{
    return OpenFirmware::instance().call(
        "call-method", nArgs + 2,
        reinterpret_cast<OFParam>(const_cast<char *>(method)),
        static_cast<OFParam>(m_Handle), p1, p2, p3, p4, p5, p6);
}