/*
* Copyright (c) 2012-2014, 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 <cutils/log.h>
#include <linux/msm_mdp.h>
#include "mdp_version.h"
#include "qd_utils.h"
#define DEBUG 0
ANDROID_SINGLETON_STATIC_INSTANCE(qdutils::MDPVersion);
namespace qdutils {
#define TOKEN_PARAMS_DELIM "="
// chip variants have same major number and minor numbers usually vary
// for e.g., MDSS_MDP_HW_REV_101 is 0x10010000
// 1001 - major number
// 0000 - minor number
// 8x26 v1 minor number is 0000
// v2 minor number is 0001 etc..
#ifndef MDSS_MDP_HW_REV_100
#define MDSS_MDP_HW_REV_100 0x10000000 //8974 v1
#endif
#ifndef MDSS_MDP_HW_REV_101
#define MDSS_MDP_HW_REV_101 0x10010000 //8x26
#endif
#ifndef MDSS_MDP_HW_REV_102
#define MDSS_MDP_HW_REV_102 0x10020000 //8974 v2
#endif
#ifndef MDSS_MDP_HW_REV_103
#define MDSS_MDP_HW_REV_103 0x10030000 //8084
#endif
#ifndef MDSS_MDP_HW_REV_104
#define MDSS_MDP_HW_REV_104 0x10040000 //Next version
#endif
#ifndef MDSS_MDP_HW_REV_105
#define MDSS_MDP_HW_REV_105 0x10050000 //8994
#endif
#ifndef MDSS_MDP_HW_REV_106
#define MDSS_MDP_HW_REV_106 0x10060000 //8x16
#endif
#ifndef MDSS_MDP_HW_REV_107
#define MDSS_MDP_HW_REV_107 0x10070000 //Next version
#endif
#ifndef MDSS_MDP_HW_REV_108
#define MDSS_MDP_HW_REV_108 0x10080000 //8x39 & 8x36
#endif
#ifndef MDSS_MDP_HW_REV_109
#define MDSS_MDP_HW_REV_109 0x10090000 //Next version
#endif
#ifndef MDSS_MDP_HW_REV_200
#define MDSS_MDP_HW_REV_200 0x20000000 //8092
#endif
#ifndef MDSS_MDP_HW_REV_206
#define MDSS_MDP_HW_REV_206 0x20060000 //Future
#endif
MDPVersion::MDPVersion()
{
mMDPVersion = MDSS_V5;
mMdpRev = 0;
mRGBPipes = 0;
mVGPipes = 0;
mDMAPipes = 0;
mFeatures = 0;
mMDPUpscale = 1;
mMDPDownscale = 1;
mMacroTileEnabled = false;
mLowBw = 0;
mHighBw = 0;
mSourceSplit = false;
mSourceSplitAlways = false;
mRGBHasNoScalar = false;
mRotDownscale = false;
// this is the default limit of mixer unless driver reports it.
// For resolutions beyond this, we use dual/split overlay pipes.
mMaxMixerWidth = 2048;
updatePanelInfo();
if(!updateSysFsInfo()) {
ALOGE("Unable to read display sysfs node");
}
if (mMdpRev == MDP_V3_0_4){
mMDPVersion = MDP_V3_0_4;
}
else if (mMdpRev == MDP_V3_0_5){
mMDPVersion = MDP_V3_0_5;
}
mHasOverlay = false;
if((mMDPVersion >= MDP_V4_0) ||
(mMDPVersion == MDP_V_UNKNOWN) ||
(mMDPVersion == MDP_V3_0_4) ||
(mMDPVersion == MDP_V3_0_5))
mHasOverlay = true;
if(!updateSplitInfo()) {
ALOGE("Unable to read display split node");
}
}
MDPVersion::~MDPVersion() {
close(mFd);
}
int MDPVersion::tokenizeParams(char *inputParams, const char *delim,
char* tokenStr[], int *idx) {
char *tmp_token = NULL;
char *temp_ptr;
int index = 0;
if (!inputParams) {
return -1;
}
tmp_token = strtok_r(inputParams, delim, &temp_ptr);
while (tmp_token != NULL) {
tokenStr[index++] = tmp_token;
tmp_token = strtok_r(NULL, " ", &temp_ptr);
}
*idx = index;
return 0;
}
// This function reads the sysfs node to read the primary panel type
// and updates information accordingly
void MDPVersion::updatePanelInfo() {
FILE *displayDeviceFP = NULL;
FILE *panelInfoNodeFP = NULL;
char fbType[MAX_FRAME_BUFFER_NAME_SIZE];
const char *strCmdPanel = "mipi dsi cmd panel";
const char *strVideoPanel = "mipi dsi video panel";
const char *strLVDSPanel = "lvds panel";
const char *strEDPPanel = "edp panel";
displayDeviceFP = fopen("/sys/class/graphics/fb0/msm_fb_type", "r");
if(displayDeviceFP){
fread(fbType, sizeof(char), MAX_FRAME_BUFFER_NAME_SIZE,
displayDeviceFP);
if(strncmp(fbType, strCmdPanel, strlen(strCmdPanel)) == 0) {
mPanelInfo.mType = MIPI_CMD_PANEL;
}
else if(strncmp(fbType, strVideoPanel, strlen(strVideoPanel)) == 0) {
mPanelInfo.mType = MIPI_VIDEO_PANEL;
}
else if(strncmp(fbType, strLVDSPanel, strlen(strLVDSPanel)) == 0) {
mPanelInfo.mType = LVDS_PANEL;
}
else if(strncmp(fbType, strEDPPanel, strlen(strEDPPanel)) == 0) {
mPanelInfo.mType = EDP_PANEL;
}
fclose(displayDeviceFP);
} else {
ALOGE("Unable to read Primary Panel Information");
}
panelInfoNodeFP = fopen("/sys/class/graphics/fb0/msm_fb_panel_info", "r");
if(panelInfoNodeFP){
size_t len = PAGE_SIZE;
ssize_t read;
char *readLine = (char *) malloc (len);
char property[PROPERTY_VALUE_MAX];
while((read = getline((char **)&readLine, &len,
panelInfoNodeFP)) != -1) {
int token_ct=0;
char *tokens[10];
memset(tokens, 0, sizeof(tokens));
if(!tokenizeParams(readLine, TOKEN_PARAMS_DELIM, tokens,
&token_ct)) {
if(!strncmp(tokens[0], "pu_en", strlen("pu_en"))) {
mPanelInfo.mPartialUpdateEnable = atoi(tokens[1]);
ALOGI("PartialUpdate status: %s",
mPanelInfo.mPartialUpdateEnable? "Enabled" :
"Disabled");
}
if(!strncmp(tokens[0], "xstart", strlen("xstart"))) {
mPanelInfo.mLeftAlign = atoi(tokens[1]);
ALOGI("Left Align: %d", mPanelInfo.mLeftAlign);
}
if(!strncmp(tokens[0], "walign", strlen("walign"))) {
mPanelInfo.mWidthAlign = atoi(tokens[1]);
ALOGI("Width Align: %d", mPanelInfo.mWidthAlign);
}
if(!strncmp(tokens[0], "ystart", strlen("ystart"))) {
mPanelInfo.mTopAlign = atoi(tokens[1]);
ALOGI("Top Align: %d", mPanelInfo.mTopAlign);
}
if(!strncmp(tokens[0], "halign", strlen("halign"))) {
mPanelInfo.mHeightAlign = atoi(tokens[1]);
ALOGI("Height Align: %d", mPanelInfo.mHeightAlign);
}
if(!strncmp(tokens[0], "min_w", strlen("min_w"))) {
mPanelInfo.mMinROIWidth = atoi(tokens[1]);
ALOGI("Min ROI Width: %d", mPanelInfo.mMinROIWidth);
}
if(!strncmp(tokens[0], "min_h", strlen("min_h"))) {
mPanelInfo.mMinROIHeight = atoi(tokens[1]);
ALOGI("Min ROI Height: %d", mPanelInfo.mMinROIHeight);
}
if(!strncmp(tokens[0], "roi_merge", strlen("roi_merge"))) {
mPanelInfo.mNeedsROIMerge = atoi(tokens[1]);
ALOGI("Needs ROI Merge: %d", mPanelInfo.mNeedsROIMerge);
}
if(!strncmp(tokens[0], "dyn_fps_en", strlen("dyn_fps_en"))) {
mPanelInfo.mDynFpsSupported = atoi(tokens[1]);
ALOGI("Dynamic Fps: %s", mPanelInfo.mDynFpsSupported ?
"Enabled" : "Disabled");
}
if(!strncmp(tokens[0], "min_fps", strlen("min_fps"))) {
mPanelInfo.mMinFps = atoi(tokens[1]);
ALOGI("Min Panel fps: %d", mPanelInfo.mMinFps);
}
if(!strncmp(tokens[0], "max_fps", strlen("max_fps"))) {
mPanelInfo.mMaxFps = atoi(tokens[1]);
ALOGI("Max Panel fps: %d", mPanelInfo.mMaxFps);
}
}
}
if((property_get("persist.hwc.pubypass", property, 0) > 0) &&
(!strncmp(property, "1", PROPERTY_VALUE_MAX ) ||
(!strncasecmp(property,"true", PROPERTY_VALUE_MAX )))) {
mPanelInfo.mPartialUpdateEnable = 0;
ALOGI("PartialUpdate disabled by property");
}
fclose(panelInfoNodeFP);
} else {
ALOGE("Failed to open msm_fb_panel_info node");
}
}
// This function reads the sysfs node to read MDP capabilities
// and parses and updates information accordingly.
bool MDPVersion::updateSysFsInfo() {
FILE *sysfsFd;
size_t len = PAGE_SIZE;
ssize_t read;
char *line = NULL;
char sysfsPath[255];
memset(sysfsPath, 0, sizeof(sysfsPath));
snprintf(sysfsPath , sizeof(sysfsPath),
"/sys/class/graphics/fb0/mdp/caps");
char property[PROPERTY_VALUE_MAX];
bool enableMacroTile = false;
if((property_get("persist.hwc.macro_tile_enable", property, NULL) > 0) &&
(!strncmp(property, "1", PROPERTY_VALUE_MAX ) ||
(!strncasecmp(property,"true", PROPERTY_VALUE_MAX )))) {
enableMacroTile = true;
}
sysfsFd = fopen(sysfsPath, "rb");
if (sysfsFd == NULL) {
ALOGE("%s: sysFsFile file '%s' not found",
__FUNCTION__, sysfsPath);
return false;
} else {
line = (char *) malloc(len);
while((read = getline(&line, &len, sysfsFd)) != -1) {
int index=0;
char *tokens[10];
memset(tokens, 0, sizeof(tokens));
// parse the line and update information accordingly
if(!tokenizeParams(line, TOKEN_PARAMS_DELIM, tokens, &index)) {
if(!strncmp(tokens[0], "hw_rev", strlen("hw_rev"))) {
mMdpRev = atoi(tokens[1]);
}
else if(!strncmp(tokens[0], "rgb_pipes", strlen("rgb_pipes"))) {
mRGBPipes = (uint8_t)atoi(tokens[1]);
}
else if(!strncmp(tokens[0], "vig_pipes", strlen("vig_pipes"))) {
mVGPipes = (uint8_t)atoi(tokens[1]);
}
else if(!strncmp(tokens[0], "dma_pipes", strlen("dma_pipes"))) {
mDMAPipes = (uint8_t)atoi(tokens[1]);
}
else if(!strncmp(tokens[0], "max_downscale_ratio",
strlen("max_downscale_ratio"))) {
mMDPDownscale = atoi(tokens[1]);
}
else if(!strncmp(tokens[0], "max_upscale_ratio",
strlen("max_upscale_ratio"))) {
mMDPUpscale = atoi(tokens[1]);
} else if(!strncmp(tokens[0], "max_bandwidth_low",
strlen("max_bandwidth_low"))) {
mLowBw = atol(tokens[1]);
} else if(!strncmp(tokens[0], "max_bandwidth_high",
strlen("max_bandwidth_high"))) {
mHighBw = atol(tokens[1]);
} else if(!strncmp(tokens[0], "max_mixer_width",
strlen("max_mixer_width"))) {
mMaxMixerWidth = atoi(tokens[1]);
} else if(!strncmp(tokens[0], "features", strlen("features"))) {
for(int i=1; i<index;i++) {
if(!strncmp(tokens[i], "bwc", strlen("bwc"))) {
mFeatures |= MDP_BWC_EN;
} else if(!strncmp(tokens[i], "decimation",
strlen("decimation"))) {
mFeatures |= MDP_DECIMATION_EN;
} else if(!strncmp(tokens[i], "tile_format",
strlen("tile_format"))) {
if(enableMacroTile)
mMacroTileEnabled = true;
} else if(!strncmp(tokens[i], "src_split",
strlen("src_split"))) {
mSourceSplit = true;
} else if(!strncmp(tokens[i], "non_scalar_rgb",
strlen("non_scalar_rgb"))) {
mRGBHasNoScalar = true;
} else if(!strncmp(tokens[i], "rotator_downscale",
strlen("rotator_downscale"))) {
mRotDownscale = true;
}
}
}
}
}
free(line);
fclose(sysfsFd);
}
if(mMDPVersion >= qdutils::MDP_V4_2 and mMDPVersion < qdutils::MDSS_V5) {
mRotDownscale = true;
}
if(mSourceSplit) {
memset(sysfsPath, 0, sizeof(sysfsPath));
snprintf(sysfsPath , sizeof(sysfsPath),
"/sys/class/graphics/fb0/msm_fb_src_split_info");
sysfsFd = fopen(sysfsPath, "rb");
if (sysfsFd == NULL) {
ALOGE("%s: Opening file %s failed with error %s", __FUNCTION__,
sysfsPath, strerror(errno));
return false;
} else {
line = (char *) malloc(len);
if((read = getline(&line, &len, sysfsFd)) != -1) {
if(!strncmp(line, "src_split_always",
strlen("src_split_always"))) {
mSourceSplitAlways = true;
}
}
free(line);
fclose(sysfsFd);
}
}
ALOGD_IF(DEBUG, "%s: mMDPVersion: %d mMdpRev: %x mRGBPipes:%d,"
"mVGPipes:%d", __FUNCTION__, mMDPVersion, mMdpRev,
mRGBPipes, mVGPipes);
ALOGD_IF(DEBUG, "%s:mDMAPipes:%d \t mMDPDownscale:%d, mFeatures:%d",
__FUNCTION__, mDMAPipes, mMDPDownscale, mFeatures);
ALOGD_IF(DEBUG, "%s:mLowBw: %lu mHighBw: %lu", __FUNCTION__, mLowBw,
mHighBw);
return true;
}
// This function reads the sysfs node to read MDP capabilities
// and parses and updates information accordingly.
bool MDPVersion::updateSplitInfo() {
if(mMDPVersion >= MDSS_V5) {
char split[64] = {0};
FILE* fp = fopen("/sys/class/graphics/fb0/msm_fb_split", "r");
if(fp){
//Format "left right" space as delimiter
if(fread(split, sizeof(char), 64, fp)) {
split[sizeof(split) - 1] = '\0';
mSplit.mLeft = atoi(split);
ALOGI_IF(mSplit.mLeft, "Left Split=%d", mSplit.mLeft);
char *rght = strpbrk(split, " ");
if(rght)
mSplit.mRight = atoi(rght + 1);
ALOGI_IF(mSplit.mRight, "Right Split=%d", mSplit.mRight);
}
} else {
ALOGE("Failed to open mdss_fb_split node");
return false;
}
if(fp)
fclose(fp);
}
return true;
}
bool MDPVersion::hasMinCropWidthLimitation() const {
return mMdpRev <= MDSS_MDP_HW_REV_102;
}
bool MDPVersion::supportsDecimation() {
return mFeatures & MDP_DECIMATION_EN;
}
uint32_t MDPVersion::getMaxMDPDownscale() {
return mMDPDownscale;
}
uint32_t MDPVersion::getMaxMDPUpscale() {
return mMDPUpscale;
}
bool MDPVersion::supportsBWC() {
// BWC - Bandwidth Compression
return (mFeatures & MDP_BWC_EN);
}
bool MDPVersion::supportsMacroTile() {
// MACRO TILE support
return mMacroTileEnabled;
}
bool MDPVersion::isSrcSplit() const {
return mSourceSplit;
}
bool MDPVersion::isSrcSplitAlways() const {
return mSourceSplitAlways;
}
bool MDPVersion::isRGBScalarSupported() const {
return (!mRGBHasNoScalar);
}
bool MDPVersion::is8x26() {
return (mMdpRev >= MDSS_MDP_HW_REV_101 and
mMdpRev < MDSS_MDP_HW_REV_102);
}
bool MDPVersion::is8x74v2() {
return (mMdpRev >= MDSS_MDP_HW_REV_102 and
mMdpRev < MDSS_MDP_HW_REV_103);
}
bool MDPVersion::is8084() {
return (mMdpRev >= MDSS_MDP_HW_REV_103 and
mMdpRev < MDSS_MDP_HW_REV_104);
}
bool MDPVersion::is8092() {
return (mMdpRev >= MDSS_MDP_HW_REV_200 and
mMdpRev < MDSS_MDP_HW_REV_206);
}
bool MDPVersion::is8994() {
return (mMdpRev >= MDSS_MDP_HW_REV_105 and
mMdpRev < MDSS_MDP_HW_REV_106);
}
bool MDPVersion::is8x16() {
return (mMdpRev >= MDSS_MDP_HW_REV_106 and
mMdpRev < MDSS_MDP_HW_REV_107);
}
bool MDPVersion::is8x39() {
return (mMdpRev >= MDSS_MDP_HW_REV_108 and
mMdpRev < MDSS_MDP_HW_REV_109);
}
}; //namespace qdutils