8b1920d85b
Add API to set the secure flag on the WB interface, making the WB session seccure. This is required for use cases such as secure playback when AD is enabled. Change-Id: Ifd6cb16f257e8eb27541e524905456c04cf06c3b
274 lines
7.5 KiB
C++
274 lines
7.5 KiB
C++
/*
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* Copyright (c) 2013 The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "overlay.h"
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#include "overlayWriteback.h"
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#include "mdpWrapper.h"
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#define SIZE_1M 0x00100000
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namespace overlay {
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//=========== class WritebackMem ==============================================
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bool WritebackMem::manageMem(uint32_t size, bool isSecure) {
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if(mBuf.bufSz() == size) {
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return true;
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}
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if(mBuf.valid()) {
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if(!mBuf.close()) {
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ALOGE("%s error closing mem", __func__);
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return false;
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}
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}
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return alloc(size, isSecure);
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}
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bool WritebackMem::alloc(uint32_t size, bool isSecure) {
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if(!mBuf.open(NUM_BUFS, size, isSecure)){
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ALOGE("%s: Failed to open", __func__);
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mBuf.close();
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return false;
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}
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OVASSERT(MAP_FAILED != mBuf.addr(), "MAP failed");
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OVASSERT(mBuf.getFD() != -1, "getFd is -1");
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mCurrOffsetIndex = 0;
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for (uint32_t i = 0; i < NUM_BUFS; i++) {
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mOffsets[i] = i * size;
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}
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return true;
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}
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bool WritebackMem::dealloc() {
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bool ret = true;
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if(mBuf.valid()) {
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ret = mBuf.close();
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}
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return ret;
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}
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//=========== class Writeback =================================================
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Writeback::Writeback() : mXres(0), mYres(0), mOpFmt(-1), mSecure(false) {
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int fbNum = Overlay::getFbForDpy(Overlay::DPY_WRITEBACK);
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if(!utils::openDev(mFd, fbNum, Res::fbPath, O_RDWR)) {
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ALOGE("%s failed to init %s", __func__, Res::fbPath);
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return;
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}
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startSession();
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}
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Writeback::~Writeback() {
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stopSession();
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if (!mFd.close()) {
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ALOGE("%s error closing fd", __func__);
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}
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}
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bool Writeback::startSession() {
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if(!mdp_wrapper::wbInitStart(mFd.getFD())) {
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ALOGE("%s failed", __func__);
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return false;
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}
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return true;
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}
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bool Writeback::stopSession() {
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if(mFd.valid()) {
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if(!mdp_wrapper::wbStopTerminate(mFd.getFD())) {
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ALOGE("%s failed", __func__);
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return false;
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}
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} else {
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ALOGE("%s Invalid fd", __func__);
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return false;
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}
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return true;
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}
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bool Writeback::configureDpyInfo(int xres, int yres) {
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if(mXres != xres || mYres != yres) {
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fb_var_screeninfo vinfo;
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memset(&vinfo, 0, sizeof(fb_var_screeninfo));
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if(!mdp_wrapper::getVScreenInfo(mFd.getFD(), vinfo)) {
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ALOGE("%s failed", __func__);
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return false;
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}
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vinfo.xres = xres;
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vinfo.yres = yres;
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vinfo.xres_virtual = xres;
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vinfo.yres_virtual = yres;
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vinfo.xoffset = 0;
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vinfo.yoffset = 0;
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if(!mdp_wrapper::setVScreenInfo(mFd.getFD(), vinfo)) {
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ALOGE("%s failed", __func__);
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return false;
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}
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mXres = xres;
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mYres = yres;
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}
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return true;
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}
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bool Writeback::configureMemory(uint32_t size) {
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if(!mWbMem.manageMem(size, mSecure)) {
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ALOGE("%s failed, memory failure", __func__);
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return false;
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}
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return true;
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}
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bool Writeback::queueBuffer(int opFd, uint32_t opOffset) {
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memset(&mFbData, 0, sizeof(struct msmfb_data));
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//Queue
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mFbData.offset = opOffset;
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mFbData.memory_id = opFd;
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mFbData.id = 0;
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mFbData.flags = 0;
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if(!mdp_wrapper::wbQueueBuffer(mFd.getFD(), mFbData)) {
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ALOGE("%s: queuebuffer failed", __func__);
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return false;
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}
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return true;
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}
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bool Writeback::dequeueBuffer() {
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//Dequeue
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mFbData.flags = MSMFB_WRITEBACK_DEQUEUE_BLOCKING;
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if(!mdp_wrapper::wbDequeueBuffer(mFd.getFD(), mFbData)) {
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ALOGE("%s: dequeuebuffer failed", __func__);
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return false;
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}
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return true;
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}
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bool Writeback::writeSync(int opFd, uint32_t opOffset) {
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if(!queueBuffer(opFd, opOffset)) {
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return false;
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}
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if(!Overlay::displayCommit(mFd.getFD())) {
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return false;
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}
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if(!dequeueBuffer()) {
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return false;
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}
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return true;
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}
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bool Writeback::writeSync() {
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mWbMem.useNextBuffer();
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return writeSync(mWbMem.getDstFd(), mWbMem.getOffset());
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}
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bool Writeback::setOutputFormat(int mdpFormat) {
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if(mdpFormat != mOpFmt) {
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struct msmfb_metadata metadata;
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memset(&metadata, 0 , sizeof(metadata));
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metadata.op = metadata_op_wb_format;
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metadata.data.mixer_cfg.writeback_format = mdpFormat;
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if (ioctl(mFd.getFD(), MSMFB_METADATA_SET, &metadata) < 0) {
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ALOGE("Error setting MDP Writeback format");
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return false;
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}
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mOpFmt = mdpFormat;
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}
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return true;
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}
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int Writeback::getOutputFormat() {
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if(mOpFmt < 0) {
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struct msmfb_metadata metadata;
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memset(&metadata, 0 , sizeof(metadata));
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metadata.op = metadata_op_wb_format;
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if (ioctl(mFd.getFD(), MSMFB_METADATA_GET, &metadata) < 0) {
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ALOGE("Error retrieving MDP Writeback format");
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return -1;
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}
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mOpFmt = metadata.data.mixer_cfg.writeback_format;
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}
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return mOpFmt;
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}
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bool Writeback::setSecure(bool isSecure) {
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if(isSecure != mSecure) {
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// Call IOCTL to set WB interface as secure
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struct msmfb_metadata metadata;
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memset(&metadata, 0 , sizeof(metadata));
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metadata.op = metadata_op_wb_secure;
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metadata.data.secure_en = isSecure;
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if (ioctl(mFd.getFD(), MSMFB_METADATA_SET, &metadata) < 0) {
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ALOGE("Error setting MDP WB secure");
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return false;
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}
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mSecure = isSecure;
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}
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return true;
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}
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//static
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Writeback *Writeback::getInstance() {
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if(sWb == NULL) {
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sWb = new Writeback();
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}
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sUsed = true;
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return sWb;
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}
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void Writeback::configDone() {
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if(sUsed == false && sWb) {
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delete sWb;
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sWb = NULL;
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}
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}
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void Writeback::clear() {
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sUsed = false;
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if(sWb) {
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delete sWb;
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sWb = NULL;
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}
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}
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bool Writeback::getDump(char *buf, size_t len) {
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if(sWb) {
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utils::getDump(buf, len, "WBData", sWb->mFbData);
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char str[4] = {'\0'};
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snprintf(str, 4, "\n");
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strncat(buf, str, strlen(str));
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return true;
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}
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return false;
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}
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Writeback *Writeback::sWb = 0;
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bool Writeback::sUsed = false;
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} //namespace overlay
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