mdp_version.cpp revision 693d5c2fa030ce90b0f8ccd5cffd255525e2305c
1/* 2 * Copyright (c) 2012-2013, The Linux Foundation. All rights reserved. 3 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above 10 * copyright notice, this list of conditions and the following 11 * disclaimer in the documentation and/or other materials provided 12 * with the distribution. 13 * * Neither the name of The Linux Foundation nor the names of its 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 26 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29#include <cutils/log.h> 30#include <linux/msm_mdp.h> 31#include "mdp_version.h" 32 33#define DEBUG 0 34 35ANDROID_SINGLETON_STATIC_INSTANCE(qdutils::MDPVersion); 36namespace qdutils { 37 38#define TOKEN_PARAMS_DELIM "=" 39 40#ifndef MDSS_MDP_REV 41enum mdp_rev { 42 MDSS_MDP_HW_REV_100 = 0x10000000, //8974 v1 43 MDSS_MDP_HW_REV_101 = 0x10010000, //8x26 44 MDSS_MDP_HW_REV_102 = 0x10020000, //8974 v2 45 MDSS_MDP_HW_REV_103 = 0x10030000, //8084 46 MDSS_MDP_HW_REV_104 = 0x10040000, //Next version 47 MDSS_MDP_HW_REV_105 = 0x10050000, //Next version 48 MDSS_MDP_HW_REV_107 = 0x10070000, //Next version 49 MDSS_MDP_HW_REV_200 = 0x20000000, //8092 50 MDSS_MDP_HW_REV_206 = 0x20060000, //Future 51}; 52#else 53enum mdp_rev { 54 MDSS_MDP_HW_REV_104 = 0x10040000, //Next version 55 MDSS_MDP_HW_REV_206 = 0x20060000, //Future 56}; 57#endif 58 59MDPVersion::MDPVersion() 60{ 61 mMDPVersion = MDSS_V5; 62 mMdpRev = 0; 63 mRGBPipes = 0; 64 mVGPipes = 0; 65 mDMAPipes = 0; 66 mFeatures = 0; 67 mMDPUpscale = 0; 68 mMDPDownscale = 0; 69 mMacroTileEnabled = false; 70 mPanelType = NO_PANEL; 71 mLowBw = 0; 72 mHighBw = 0; 73 74 if(!updatePanelInfo()) { 75 ALOGE("Unable to read Primary Panel Information"); 76 } 77 if(!updateSysFsInfo()) { 78 ALOGE("Unable to read display sysfs node"); 79 } 80 if (mMdpRev == MDP_V3_0_4){ 81 mMDPVersion = MDP_V3_0_4; 82 } 83 84 mHasOverlay = false; 85 if((mMDPVersion >= MDP_V4_0) || 86 (mMDPVersion == MDP_V_UNKNOWN) || 87 (mMDPVersion == MDP_V3_0_4)) 88 mHasOverlay = true; 89 if(!updateSplitInfo()) { 90 ALOGE("Unable to read display split node"); 91 } 92} 93 94MDPVersion::~MDPVersion() { 95 close(mFd); 96} 97 98int MDPVersion::tokenizeParams(char *inputParams, const char *delim, 99 char* tokenStr[], int *idx) { 100 char *tmp_token = NULL; 101 char *temp_ptr; 102 int ret = 0, index = 0; 103 if (!inputParams) { 104 return -1; 105 } 106 tmp_token = strtok_r(inputParams, delim, &temp_ptr); 107 while (tmp_token != NULL) { 108 tokenStr[index++] = tmp_token; 109 tmp_token = strtok_r(NULL, " ", &temp_ptr); 110 } 111 *idx = index; 112 return 0; 113} 114// This function reads the sysfs node to read the primary panel type 115// and updates information accordingly 116bool MDPVersion::updatePanelInfo() { 117 FILE *displayDeviceFP = NULL; 118 const int MAX_FRAME_BUFFER_NAME_SIZE = 128; 119 char fbType[MAX_FRAME_BUFFER_NAME_SIZE]; 120 const char *strCmdPanel = "mipi dsi cmd panel"; 121 const char *strVideoPanel = "mipi dsi video panel"; 122 const char *strLVDSPanel = "lvds panel"; 123 const char *strEDPPanel = "edp panel"; 124 125 displayDeviceFP = fopen("/sys/class/graphics/fb0/msm_fb_type", "r"); 126 if(displayDeviceFP){ 127 fread(fbType, sizeof(char), MAX_FRAME_BUFFER_NAME_SIZE, 128 displayDeviceFP); 129 if(strncmp(fbType, strCmdPanel, strlen(strCmdPanel)) == 0) { 130 mPanelType = MIPI_CMD_PANEL; 131 } 132 else if(strncmp(fbType, strVideoPanel, strlen(strVideoPanel)) == 0) { 133 mPanelType = MIPI_VIDEO_PANEL; 134 } 135 else if(strncmp(fbType, strLVDSPanel, strlen(strLVDSPanel)) == 0) { 136 mPanelType = LVDS_PANEL; 137 } 138 else if(strncmp(fbType, strEDPPanel, strlen(strEDPPanel)) == 0) { 139 mPanelType = EDP_PANEL; 140 } 141 fclose(displayDeviceFP); 142 return true; 143 }else { 144 return false; 145 } 146} 147 148// This function reads the sysfs node to read MDP capabilities 149// and parses and updates information accordingly. 150bool MDPVersion::updateSysFsInfo() { 151 FILE *sysfsFd; 152 size_t len = 0; 153 ssize_t read; 154 char *line = NULL; 155 char sysfsPath[255]; 156 memset(sysfsPath, 0, sizeof(sysfsPath)); 157 snprintf(sysfsPath , sizeof(sysfsPath), 158 "/sys/class/graphics/fb0/mdp/caps"); 159 char property[PROPERTY_VALUE_MAX]; 160 bool enableMacroTile = false; 161 162 if((property_get("persist.hwc.macro_tile_enable", property, NULL) > 0) && 163 (!strncmp(property, "1", PROPERTY_VALUE_MAX ) || 164 (!strncasecmp(property,"true", PROPERTY_VALUE_MAX )))) { 165 enableMacroTile = true; 166 } 167 168 sysfsFd = fopen(sysfsPath, "rb"); 169 170 if (sysfsFd == NULL) { 171 ALOGE("%s: sysFsFile file '%s' not found", 172 __FUNCTION__, sysfsPath); 173 return false; 174 } else { 175 while((read = getline(&line, &len, sysfsFd)) != -1) { 176 int index=0; 177 char *tokens[10]; 178 memset(tokens, 0, sizeof(tokens)); 179 180 // parse the line and update information accordingly 181 if(!tokenizeParams(line, TOKEN_PARAMS_DELIM, tokens, &index)) { 182 if(!strncmp(tokens[0], "hw_rev", strlen("hw_rev"))) { 183 mMdpRev = atoi(tokens[1]); 184 } 185 else if(!strncmp(tokens[0], "rgb_pipes", strlen("rgb_pipes"))) { 186 mRGBPipes = atoi(tokens[1]); 187 } 188 else if(!strncmp(tokens[0], "vig_pipes", strlen("vig_pipes"))) { 189 mVGPipes = atoi(tokens[1]); 190 } 191 else if(!strncmp(tokens[0], "dma_pipes", strlen("dma_pipes"))) { 192 mDMAPipes = atoi(tokens[1]); 193 } 194 else if(!strncmp(tokens[0], "max_downscale_ratio", 195 strlen("max_downscale_ratio"))) { 196 mMDPDownscale = atoi(tokens[1]); 197 } 198 else if(!strncmp(tokens[0], "max_upscale_ratio", 199 strlen("max_upscale_ratio"))) { 200 mMDPUpscale = atoi(tokens[1]); 201 } else if(!strncmp(tokens[0], "max_bandwidth_low", 202 strlen("max_bandwidth_low"))) { 203 mLowBw = atol(tokens[1]); 204 } else if(!strncmp(tokens[0], "max_bandwidth_high", 205 strlen("max_bandwidth_high"))) { 206 mHighBw = atol(tokens[1]); 207 } else if(!strncmp(tokens[0], "features", strlen("features"))) { 208 for(int i=1; i<index;i++) { 209 if(!strncmp(tokens[i], "bwc", strlen("bwc"))) { 210 mFeatures |= MDP_BWC_EN; 211 } 212 else if(!strncmp(tokens[i], "decimation", 213 strlen("decimation"))) { 214 mFeatures |= MDP_DECIMATION_EN; 215 } 216 else if(!strncmp(tokens[i], "tile_format", 217 strlen("tile_format"))) { 218 if(enableMacroTile) 219 mMacroTileEnabled = true; 220 } 221 } 222 } 223 } 224 free(line); 225 line = NULL; 226 } 227 fclose(sysfsFd); 228 } 229 ALOGD_IF(DEBUG, "%s: mMDPVersion: %d mMdpRev: %x mRGBPipes:%d," 230 "mVGPipes:%d", __FUNCTION__, mMDPVersion, mMdpRev, 231 mRGBPipes, mVGPipes); 232 ALOGD_IF(DEBUG, "%s:mDMAPipes:%d \t mMDPDownscale:%d, mFeatures:%d", 233 __FUNCTION__, mDMAPipes, mMDPDownscale, mFeatures); 234 ALOGD_IF(DEBUG, "%s:mLowBw: %lu mHighBw: %lu", __FUNCTION__, mLowBw, 235 mHighBw); 236 237 return true; 238} 239 240// This function reads the sysfs node to read MDP capabilities 241// and parses and updates information accordingly. 242bool MDPVersion::updateSplitInfo() { 243 if(mMDPVersion >= MDSS_V5) { 244 char split[64] = {0}; 245 FILE* fp = fopen("/sys/class/graphics/fb0/msm_fb_split", "r"); 246 if(fp){ 247 //Format "left right" space as delimiter 248 if(fread(split, sizeof(char), 64, fp)) { 249 mSplit.mLeft = atoi(split); 250 ALOGI_IF(mSplit.mLeft, "Left Split=%d", mSplit.mLeft); 251 char *rght = strpbrk(split, " "); 252 if(rght) 253 mSplit.mRight = atoi(rght + 1); 254 ALOGI_IF(mSplit.mRight, "Right Split=%d", mSplit.mRight); 255 } 256 } else { 257 ALOGE("Failed to open mdss_fb_split node"); 258 return false; 259 } 260 if(fp) 261 fclose(fp); 262 } 263 return true; 264} 265 266 267bool MDPVersion::supportsDecimation() { 268 return mFeatures & MDP_DECIMATION_EN; 269} 270 271uint32_t MDPVersion::getMaxMDPDownscale() { 272 return mMDPDownscale; 273} 274 275bool MDPVersion::supportsBWC() { 276 // BWC - Bandwidth Compression 277 return (mFeatures & MDP_BWC_EN); 278} 279 280bool MDPVersion::supportsMacroTile() { 281 // MACRO TILE support 282 return mMacroTileEnabled; 283} 284 285bool MDPVersion::is8x26() { 286 return (mMdpRev >= MDSS_MDP_HW_REV_101 and 287 mMdpRev < MDSS_MDP_HW_REV_102); 288} 289 290bool MDPVersion::is8x74v2() { 291 return (mMdpRev >= MDSS_MDP_HW_REV_102 and 292 mMdpRev < MDSS_MDP_HW_REV_103); 293} 294 295bool MDPVersion::is8084() { 296 return (mMdpRev >= MDSS_MDP_HW_REV_103 and 297 mMdpRev < MDSS_MDP_HW_REV_104); 298} 299 300bool MDPVersion::is8092() { 301 return (mMdpRev >= MDSS_MDP_HW_REV_200 and 302 mMdpRev < MDSS_MDP_HW_REV_206); 303} 304 305}; //namespace qdutils 306 307