/*
* Copyright (c) 2011-2013, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <dlfcn.h>
#include "overlay.h"
#include "pipes/overlayGenPipe.h"
#include "mdp_version.h"
#include "qdMetaData.h"
#define PIPE_DEBUG 0
namespace overlay {
using namespace utils;
using namespace qdutils;
static bool is_delta_panel = false;
Overlay::Overlay() {
int numPipes = qdutils::MDPVersion::getInstance().getTotalPipes();
PipeBook::NUM_PIPES = (numPipes <= utils::OV_MAX)? numPipes : utils::OV_MAX;
for(int i = 0; i < PipeBook::NUM_PIPES; i++) {
mPipeBook[i].init();
}
mDumpStr[0] = '\0';
initScalar();
setDMAMultiplexingSupported();
#ifdef DELTA_PANEL
char property[PROPERTY_VALUE_MAX];
if((property_get("ro.hwc.is_delta_panel", property, NULL) > 0) &&
(!strncmp(property, "1", PROPERTY_VALUE_MAX ) ||
(!strncasecmp(property,"true", PROPERTY_VALUE_MAX )))) {
is_delta_panel = true;
}
#endif
}
Overlay::~Overlay() {
for(int i = 0; i < PipeBook::NUM_PIPES; i++) {
mPipeBook[i].destroy();
}
destroyScalar();
}
void Overlay::configBegin() {
for(int i = 0; i < PipeBook::NUM_PIPES; i++) {
//Mark as available for this round.
PipeBook::resetUse(i);
PipeBook::resetAllocation(i);
}
mDumpStr[0] = '\0';
}
void Overlay::configDone() {
for(int i = 0; i < PipeBook::NUM_PIPES; i++) {
if((PipeBook::isNotUsed(i) && !sessionInProgress((eDest)i)) ||
isSessionEnded((eDest)i)) {
//Forces UNSET on pipes, flushes rotator memory and session, closes
//fds
if(mPipeBook[i].valid()) {
char str[32];
snprintf(str, 32, "Unset=%s dpy=%d mix=%d; ",
PipeBook::getDestStr((eDest)i),
mPipeBook[i].mDisplay, mPipeBook[i].mMixer);
#if PIPE_DEBUG
strlcat(mDumpStr, str, sizeof(mDumpStr));
#endif
}
mPipeBook[i].destroy();
}
}
dump();
PipeBook::save();
}
int Overlay::getPipeId(utils::eDest dest) {
return mPipeBook[(int)dest].mPipe->getPipeId();
}
eDest Overlay::getDest(int pipeid) {
eDest dest = OV_INVALID;
// finding the dest corresponding to the given pipe
for(int i=0; i < PipeBook::NUM_PIPES; ++i) {
if(mPipeBook[i].valid() && mPipeBook[i].mPipe->getPipeId() == pipeid) {
return (eDest)i;
}
}
return dest;
}
eDest Overlay::reservePipe(int pipeid) {
eDest dest = getDest(pipeid);
PipeBook::setAllocation((int)dest);
return dest;
}
eDest Overlay::nextPipe(eMdpPipeType type, int dpy, int mixer) {
eDest dest = OV_INVALID;
for(int i = 0; i < PipeBook::NUM_PIPES; i++) {
if( (type == OV_MDP_PIPE_ANY || //Pipe type match
type == PipeBook::getPipeType((eDest)i)) &&
(mPipeBook[i].mDisplay == DPY_UNUSED || //Free or same display
mPipeBook[i].mDisplay == dpy) &&
(mPipeBook[i].mMixer == MIXER_UNUSED || //Free or same mixer
mPipeBook[i].mMixer == mixer) &&
PipeBook::isNotAllocated(i) && //Free pipe
( (sDMAMultiplexingSupported && dpy) ||
!(sDMAMode == DMA_BLOCK_MODE && //DMA pipe in Line mode
PipeBook::getPipeType((eDest)i) == OV_MDP_PIPE_DMA)) ){
//DMA-Multiplexing is only supported for WB on 8x26
dest = (eDest)i;
PipeBook::setAllocation(i);
break;
}
}
if(dest != OV_INVALID) {
int index = (int)dest;
mPipeBook[index].mDisplay = dpy;
mPipeBook[index].mMixer = mixer;
if(not mPipeBook[index].valid()) {
mPipeBook[index].mPipe = new GenericPipe(dpy);
mPipeBook[index].mSession = PipeBook::NONE;
char str[32];
snprintf(str, 32, "Set=%s dpy=%d mix=%d; ",
PipeBook::getDestStr(dest), dpy, mixer);
#if PIPE_DEBUG
strlcat(mDumpStr, str, sizeof(mDumpStr));
#endif
}
} else {
ALOGD_IF(PIPE_DEBUG, "Pipe unavailable type=%d display=%d mixer=%d",
(int)type, dpy, mixer);
}
return dest;
}
utils::eDest Overlay::getPipe(const PipeSpecs& pipeSpecs) {
if(MDPVersion::getInstance().is8x26()) {
return getPipe_8x26(pipeSpecs);
} else if(MDPVersion::getInstance().is8x16()) {
return getPipe_8x16(pipeSpecs);
} else if(MDPVersion::getInstance().is8x39()) {
return getPipe_8x39(pipeSpecs);
}
eDest dest = OV_INVALID;
//The default behavior is to assume RGB and VG pipes have scalars
if(pipeSpecs.formatClass == FORMAT_YUV) {
return nextPipe(OV_MDP_PIPE_VG, pipeSpecs.dpy, pipeSpecs.mixer);
} else if(pipeSpecs.fb == false) { //RGB App layers
if(not pipeSpecs.needsScaling) {
dest = nextPipe(OV_MDP_PIPE_DMA, pipeSpecs.dpy, pipeSpecs.mixer);
}
if(dest == OV_INVALID) {
dest = nextPipe(OV_MDP_PIPE_RGB, pipeSpecs.dpy, pipeSpecs.mixer);
}
if(dest == OV_INVALID) {
dest = nextPipe(OV_MDP_PIPE_VG, pipeSpecs.dpy, pipeSpecs.mixer);
}
} else { //FB layer
dest = nextPipe(OV_MDP_PIPE_RGB, pipeSpecs.dpy, pipeSpecs.mixer);
if(dest == OV_INVALID) {
dest = nextPipe(OV_MDP_PIPE_VG, pipeSpecs.dpy, pipeSpecs.mixer);
}
//Some features can cause FB to have scaling as well.
//If we ever come to this block with FB needing scaling,
//the screen will be black for a frame, since the FB won't get a pipe
//but atleast this will prevent a hang
if(dest == OV_INVALID and (not pipeSpecs.needsScaling)) {
dest = nextPipe(OV_MDP_PIPE_DMA, pipeSpecs.dpy, pipeSpecs.mixer);
}
}
return dest;
}
utils::eDest Overlay::getPipe_8x26(const PipeSpecs& pipeSpecs) {
//Use this to hide all the 8x26 requirements that cannot be humanly
//described in a generic way
eDest dest = OV_INVALID;
if(pipeSpecs.formatClass == FORMAT_YUV) { //video
return nextPipe(OV_MDP_PIPE_VG, pipeSpecs.dpy, pipeSpecs.mixer);
} else if(pipeSpecs.fb == false) { //RGB app layers
if((not pipeSpecs.needsScaling) and
(not (pipeSpecs.numActiveDisplays > 1 &&
pipeSpecs.dpy == DPY_PRIMARY))) {
dest = nextPipe(OV_MDP_PIPE_DMA, pipeSpecs.dpy, pipeSpecs.mixer);
}
if(dest == OV_INVALID) {
dest = nextPipe(OV_MDP_PIPE_RGB, pipeSpecs.dpy, pipeSpecs.mixer);
}
if(dest == OV_INVALID) {
dest = nextPipe(OV_MDP_PIPE_VG, pipeSpecs.dpy, pipeSpecs.mixer);
}
} else { //FB layer
//For 8x26 Secondary we use DMA always for FB for inline rotation
if(pipeSpecs.dpy == DPY_PRIMARY) {
if (is_delta_panel && not pipeSpecs.needsScaling) {
/* For wearable targets, secondary display is not applicable
Try for DMA pipe for FB first, if FB does not have scaling*/
dest = nextPipe(OV_MDP_PIPE_DMA, pipeSpecs.dpy, pipeSpecs.mixer);
}
if (dest == OV_INVALID) {
dest = nextPipe(OV_MDP_PIPE_RGB, pipeSpecs.dpy, pipeSpecs.mixer);
}
if (dest == OV_INVALID) {
// FB needs scaling, and RGB pipe is not available - try VG
dest = nextPipe(OV_MDP_PIPE_VG, pipeSpecs.dpy, pipeSpecs.mixer);
}
}
if(dest == OV_INVALID and (not pipeSpecs.needsScaling) and
(not (pipeSpecs.numActiveDisplays > 1 &&
pipeSpecs.dpy == DPY_PRIMARY))) {
dest = nextPipe(OV_MDP_PIPE_DMA, pipeSpecs.dpy, pipeSpecs.mixer);
}
}
return dest;
}
utils::eDest Overlay::getPipe_8x16(const PipeSpecs& pipeSpecs) {
//Having such functions help keeping the interface generic but code specific
//and rife with assumptions
eDest dest = OV_INVALID;
if(pipeSpecs.formatClass == FORMAT_YUV or pipeSpecs.needsScaling) {
return nextPipe(OV_MDP_PIPE_VG, pipeSpecs.dpy, pipeSpecs.mixer);
} else {
//Since this is a specific func, we can assume stuff like RGB pipe not
//having scalar blocks
dest = nextPipe(OV_MDP_PIPE_RGB, pipeSpecs.dpy, pipeSpecs.mixer);
if(dest == OV_INVALID) {
dest = nextPipe(OV_MDP_PIPE_DMA, pipeSpecs.dpy, pipeSpecs.mixer);
}
if(dest == OV_INVALID) {
dest = nextPipe(OV_MDP_PIPE_VG, pipeSpecs.dpy, pipeSpecs.mixer);
}
}
return dest;
}
utils::eDest Overlay::getPipe_8x39(const PipeSpecs& pipeSpecs) {
//8x16 & 8x36 has same number of pipes, pipe-types & scaling capabilities.
//Rely on 8x16 until we see a need to change.
return getPipe_8x16(pipeSpecs);
}
void Overlay::endAllSessions() {
for(int i = 0; i < PipeBook::NUM_PIPES; i++) {
if(mPipeBook[i].valid() && mPipeBook[i].mSession==PipeBook::START)
mPipeBook[i].mSession = PipeBook::END;
}
}
bool Overlay::isPipeTypeAttached(eMdpPipeType type) {
for(int i = 0; i < PipeBook::NUM_PIPES; i++) {
if(type == PipeBook::getPipeType((eDest)i) &&
mPipeBook[i].mDisplay != DPY_UNUSED) {
return true;
}
}
return false;
}
int Overlay::comparePipePriority(utils::eDest pipe1Index,
utils::eDest pipe2Index) {
validate((int)pipe1Index);
validate((int)pipe2Index);
uint8_t pipe1Prio = mPipeBook[(int)pipe1Index].mPipe->getPriority();
uint8_t pipe2Prio = mPipeBook[(int)pipe2Index].mPipe->getPriority();
if(pipe1Prio > pipe2Prio)
return -1;
if(pipe1Prio < pipe2Prio)
return 1;
return 0;
}
bool Overlay::commit(utils::eDest dest) {
bool ret = false;
validate((int)dest);
if(mPipeBook[dest].mPipe->commit()) {
ret = true;
PipeBook::setUse((int)dest);
} else {
int dpy = mPipeBook[dest].mDisplay;
for(int i = 0; i < PipeBook::NUM_PIPES; i++) {
if (mPipeBook[i].mDisplay == dpy) {
PipeBook::resetAllocation(i);
PipeBook::resetUse(i);
}
}
}
return ret;
}
bool Overlay::queueBuffer(int fd, uint32_t offset,
utils::eDest dest) {
bool ret = false;
validate((int)dest);
//Queue only if commit() has succeeded (and the bit set)
if(PipeBook::isUsed((int)dest)) {
ret = mPipeBook[dest].mPipe->queueBuffer(fd, offset);
}
return ret;
}
void Overlay::setCrop(const utils::Dim& d,
utils::eDest dest) {
validate((int)dest);
mPipeBook[dest].mPipe->setCrop(d);
}
void Overlay::setColor(const uint32_t color,
utils::eDest dest) {
validate((int)dest);
mPipeBook[dest].mPipe->setColor(color);
}
void Overlay::setPosition(const utils::Dim& d,
utils::eDest dest) {
validate((int)dest);
mPipeBook[dest].mPipe->setPosition(d);
}
void Overlay::setTransform(const int orient,
utils::eDest dest) {
validate((int)dest);
utils::eTransform transform =
static_cast<utils::eTransform>(orient);
mPipeBook[dest].mPipe->setTransform(transform);
}
void Overlay::setSource(const utils::PipeArgs args,
utils::eDest dest) {
validate((int)dest);
setPipeType(dest, PipeBook::getPipeType(dest));
mPipeBook[dest].mPipe->setSource(args);
}
void Overlay::setVisualParams(const MetaData_t& metadata, utils::eDest dest) {
validate((int)dest);
mPipeBook[dest].mPipe->setVisualParams(metadata);
}
void Overlay::setPipeType(utils::eDest pipeIndex,
const utils::eMdpPipeType pType) {
mPipeBook[pipeIndex].mPipe->setPipeType(pType);
}
Overlay* Overlay::getInstance() {
if(sInstance == NULL) {
sInstance = new Overlay();
}
return sInstance;
}
// Clears any VG pipes allocated to the fb devices
// Generates a LUT for pipe types.
int Overlay::initOverlay() {
int mdpVersion = qdutils::MDPVersion::getInstance().getMDPVersion();
int numPipesXType[OV_MDP_PIPE_ANY] = {0};
numPipesXType[OV_MDP_PIPE_RGB] =
qdutils::MDPVersion::getInstance().getRGBPipes();
numPipesXType[OV_MDP_PIPE_VG] =
qdutils::MDPVersion::getInstance().getVGPipes();
numPipesXType[OV_MDP_PIPE_DMA] =
qdutils::MDPVersion::getInstance().getDMAPipes();
int index = 0;
for(int X = 0; X < (int)OV_MDP_PIPE_ANY; X++) { //iterate over types
for(int j = 0; j < numPipesXType[X]; j++) { //iterate over num
PipeBook::pipeTypeLUT[index] = (utils::eMdpPipeType)X;
index++;
}
}
if (mdpVersion < qdutils::MDSS_V5 && mdpVersion != qdutils::MDP_V3_0_4) {
msmfb_mixer_info_req req;
mdp_mixer_info *minfo = NULL;
char name[64];
int fd = -1;
for(int i = 0; i < MAX_FB_DEVICES; i++) {
snprintf(name, 64, FB_DEVICE_TEMPLATE, i);
ALOGD("initoverlay:: opening the device:: %s", name);
fd = ::open(name, O_RDWR, 0);
if(fd < 0) {
ALOGE("cannot open framebuffer(%d)", i);
return -1;
}
//Get the mixer configuration */
req.mixer_num = i;
if (ioctl(fd, MSMFB_MIXER_INFO, &req) == -1) {
ALOGE("ERROR: MSMFB_MIXER_INFO ioctl failed");
close(fd);
return -1;
}
minfo = req.info;
for (int j = 0; j < req.cnt; j++) {
ALOGD("ndx=%d num=%d z_order=%d", minfo->pndx, minfo->pnum,
minfo->z_order);
// except the RGB base layer with z_order of -1, clear any
// other pipes connected to mixer.
if((minfo->z_order) != -1) {
int index = minfo->pndx;
ALOGD("Unset overlay with index: %d at mixer %d", index, i);
if(ioctl(fd, MSMFB_OVERLAY_UNSET, &index) == -1) {
ALOGE("ERROR: MSMFB_OVERLAY_UNSET failed");
close(fd);
return -1;
}
}
minfo++;
}
close(fd);
fd = -1;
}
}
FILE *displayDeviceFP = NULL;
const int MAX_FRAME_BUFFER_NAME_SIZE = 128;
char fbType[MAX_FRAME_BUFFER_NAME_SIZE];
char msmFbTypePath[MAX_FRAME_BUFFER_NAME_SIZE];
const char *strDtvPanel = "dtv panel";
const char *strWbPanel = "writeback panel";
for(int num = 1; num < MAX_FB_DEVICES; num++) {
snprintf (msmFbTypePath, sizeof(msmFbTypePath),
"/sys/class/graphics/fb%d/msm_fb_type", num);
displayDeviceFP = fopen(msmFbTypePath, "r");
if(displayDeviceFP){
fread(fbType, sizeof(char), MAX_FRAME_BUFFER_NAME_SIZE,
displayDeviceFP);
if(strncmp(fbType, strDtvPanel, strlen(strDtvPanel)) == 0) {
sDpyFbMap[DPY_EXTERNAL] = num;
} else if(strncmp(fbType, strWbPanel, strlen(strWbPanel)) == 0) {
sDpyFbMap[DPY_WRITEBACK] = num;
}
fclose(displayDeviceFP);
}
}
return 0;
}
bool Overlay::displayCommit(const int& fd) {
utils::Dim lRoi, rRoi;
return displayCommit(fd, lRoi, rRoi);
}
bool Overlay::displayCommit(const int& fd, const utils::Dim& lRoi,
const utils::Dim& rRoi) {
//Commit
struct mdp_display_commit info;
memset(&info, 0, sizeof(struct mdp_display_commit));
info.flags = MDP_DISPLAY_COMMIT_OVERLAY;
info.l_roi.x = lRoi.x;
info.l_roi.y = lRoi.y;
info.l_roi.w = lRoi.w;
info.l_roi.h = lRoi.h;
info.r_roi.x = rRoi.x;
info.r_roi.y = rRoi.y;
info.r_roi.w = rRoi.w;
info.r_roi.h = rRoi.h;
if(!mdp_wrapper::displayCommit(fd, info)) {
ALOGE("%s: commit failed", __func__);
return false;
}
return true;
}
void Overlay::dump() const {
#if PIPE_DEBUG
if(strlen(mDumpStr)) { //dump only on state change
ALOGD("%s\n", mDumpStr);
}
#endif
}
void Overlay::getDump(char *buf, size_t len) {
int totalPipes = 0;
const char *str = "\nOverlay State\n\n";
strlcat(buf, str, len);
for(int i = 0; i < PipeBook::NUM_PIPES; i++) {
if(mPipeBook[i].valid()) {
mPipeBook[i].mPipe->getDump(buf, len);
char str[64] = {'\0'};
snprintf(str, 64, "Display=%d\n\n", mPipeBook[i].mDisplay);
strlcat(buf, str, len);
totalPipes++;
}
}
char str_pipes[64] = {'\0'};
snprintf(str_pipes, 64, "Pipes=%d\n\n", totalPipes);
strlcat(buf, str_pipes, len);
}
void Overlay::clear(int dpy) {
for(int i = 0; i < PipeBook::NUM_PIPES; i++) {
if (mPipeBook[i].mDisplay == dpy) {
// Mark as available for this round
PipeBook::resetUse(i);
PipeBook::resetAllocation(i);
}
}
}
bool Overlay::validateAndSet(const int& dpy, const int& fbFd) {
GenericPipe* pipeArray[PipeBook::NUM_PIPES];
memset(pipeArray, 0, sizeof(GenericPipe*)*(PipeBook::NUM_PIPES));
int num = 0;
for(int i = 0; i < PipeBook::NUM_PIPES; i++) {
if(PipeBook::isUsed(i) && mPipeBook[i].valid() &&
mPipeBook[i].mDisplay == dpy) {
pipeArray[num++] = mPipeBook[i].mPipe;
}
}
//Protect against misbehaving clients
return num ? GenericPipe::validateAndSet(pipeArray, num, fbFd) : true;
}
void Overlay::initScalar() {
if(sLibScaleHandle == NULL) {
sLibScaleHandle = dlopen("libscale.so", RTLD_NOW);
if(sLibScaleHandle) {
*(void **) &sFnProgramScale =
dlsym(sLibScaleHandle, "programScale");
}
}
}
void Overlay::destroyScalar() {
if(sLibScaleHandle) {
dlclose(sLibScaleHandle);
sLibScaleHandle = NULL;
}
}
void Overlay::PipeBook::init() {
mPipe = NULL;
mDisplay = DPY_UNUSED;
mMixer = MIXER_UNUSED;
}
void Overlay::PipeBook::destroy() {
if(mPipe) {
delete mPipe;
mPipe = NULL;
}
mDisplay = DPY_UNUSED;
mMixer = MIXER_UNUSED;
mSession = NONE;
}
Overlay* Overlay::sInstance = 0;
int Overlay::sDpyFbMap[DPY_MAX] = {0, -1, -1};
int Overlay::sDMAMode = DMA_LINE_MODE;
bool Overlay::sDMAMultiplexingSupported = false;
int Overlay::PipeBook::NUM_PIPES = 0;
int Overlay::PipeBook::sPipeUsageBitmap = 0;
int Overlay::PipeBook::sLastUsageBitmap = 0;
int Overlay::PipeBook::sAllocatedBitmap = 0;
utils::eMdpPipeType Overlay::PipeBook::pipeTypeLUT[utils::OV_MAX] =
{utils::OV_MDP_PIPE_ANY};
void *Overlay::sLibScaleHandle = NULL;
int (*Overlay::sFnProgramScale)(struct mdp_overlay_list *) = NULL;
}; // namespace overlay