1 /* 2 * Copyright (c) 2012-2014, 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 35 ANDROID_SINGLETON_STATIC_INSTANCE(qdutils::MDPVersion); 36 namespace qdutils { 37 38 #define TOKEN_PARAMS_DELIM "=" 39 40 #ifndef MDSS_MDP_REV 41 enum 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_106 = 0x10060000, //8x16 49 MDSS_MDP_HW_REV_200 = 0x20000000, //8092 50 MDSS_MDP_HW_REV_206 = 0x20060000, //Future 51 }; 52 #else 53 enum mdp_rev { 54 MDSS_MDP_HW_REV_104 = 0x10040000, //Next version 55 MDSS_MDP_HW_REV_206 = 0x20060000, //Future 56 MDSS_MDP_HW_REV_107 = 0x10070000, //Next version 57 }; 58 #endif 59 60 MDPVersion::MDPVersion() 61 { 62 mMDPVersion = MDSS_V5; 63 mMdpRev = 0; 64 mRGBPipes = 0; 65 mVGPipes = 0; 66 mDMAPipes = 0; 67 mFeatures = 0; 68 mMDPUpscale = 0; 69 mMDPDownscale = 0; 70 mMacroTileEnabled = false; 71 mLowBw = 0; 72 mHighBw = 0; 73 mSourceSplit = false; 74 mRGBHasNoScalar = false; 75 76 updatePanelInfo(); 77 78 if(!updateSysFsInfo()) { 79 ALOGE("Unable to read display sysfs node"); 80 } 81 if (mMdpRev == MDP_V3_0_4){ 82 mMDPVersion = MDP_V3_0_4; 83 } 84 85 mHasOverlay = false; 86 if((mMDPVersion >= MDP_V4_0) || 87 (mMDPVersion == MDP_V_UNKNOWN) || 88 (mMDPVersion == MDP_V3_0_4)) 89 mHasOverlay = true; 90 if(!updateSplitInfo()) { 91 ALOGE("Unable to read display split node"); 92 } 93 } 94 95 MDPVersion::~MDPVersion() { 96 close(mFd); 97 } 98 99 int MDPVersion::tokenizeParams(char *inputParams, const char *delim, 100 char* tokenStr[], int *idx) { 101 char *tmp_token = NULL; 102 char *temp_ptr; 103 int index = 0; 104 if (!inputParams) { 105 return -1; 106 } 107 tmp_token = strtok_r(inputParams, delim, &temp_ptr); 108 while (tmp_token != NULL) { 109 tokenStr[index++] = tmp_token; 110 tmp_token = strtok_r(NULL, " ", &temp_ptr); 111 } 112 *idx = index; 113 return 0; 114 } 115 // This function reads the sysfs node to read the primary panel type 116 // and updates information accordingly 117 void MDPVersion::updatePanelInfo() { 118 FILE *displayDeviceFP = NULL; 119 FILE *panelInfoNodeFP = NULL; 120 const int MAX_FRAME_BUFFER_NAME_SIZE = 128; 121 char fbType[MAX_FRAME_BUFFER_NAME_SIZE]; 122 char panelInfo[MAX_FRAME_BUFFER_NAME_SIZE]; 123 const char *strCmdPanel = "mipi dsi cmd panel"; 124 const char *strVideoPanel = "mipi dsi video panel"; 125 const char *strLVDSPanel = "lvds panel"; 126 const char *strEDPPanel = "edp panel"; 127 128 displayDeviceFP = fopen("/sys/class/graphics/fb0/msm_fb_type", "r"); 129 if(displayDeviceFP){ 130 fread(fbType, sizeof(char), MAX_FRAME_BUFFER_NAME_SIZE, 131 displayDeviceFP); 132 if(strncmp(fbType, strCmdPanel, strlen(strCmdPanel)) == 0) { 133 mPanelInfo.mType = MIPI_CMD_PANEL; 134 } 135 else if(strncmp(fbType, strVideoPanel, strlen(strVideoPanel)) == 0) { 136 mPanelInfo.mType = MIPI_VIDEO_PANEL; 137 } 138 else if(strncmp(fbType, strLVDSPanel, strlen(strLVDSPanel)) == 0) { 139 mPanelInfo.mType = LVDS_PANEL; 140 } 141 else if(strncmp(fbType, strEDPPanel, strlen(strEDPPanel)) == 0) { 142 mPanelInfo.mType = EDP_PANEL; 143 } 144 fclose(displayDeviceFP); 145 } else { 146 ALOGE("Unable to read Primary Panel Information"); 147 } 148 149 panelInfoNodeFP = fopen("/sys/class/graphics/fb0/msm_fb_panel_info", "r"); 150 if(panelInfoNodeFP){ 151 size_t len = PAGE_SIZE; 152 ssize_t read; 153 char *readLine = (char *) malloc (len); 154 while((read = getline((char **)&readLine, &len, 155 panelInfoNodeFP)) != -1) { 156 int token_ct=0; 157 char *tokens[10]; 158 memset(tokens, 0, sizeof(tokens)); 159 160 if(!tokenizeParams(readLine, TOKEN_PARAMS_DELIM, tokens, 161 &token_ct)) { 162 if(!strncmp(tokens[0], "pu_en", strlen("pu_en"))) { 163 mPanelInfo.mPartialUpdateEnable = atoi(tokens[1]); 164 ALOGI("PartialUpdate status: %s", 165 mPanelInfo.mPartialUpdateEnable? "Enabled" : 166 "Disabled"); 167 } 168 if(!strncmp(tokens[0], "xalign", strlen("xalign"))) { 169 mPanelInfo.mLeftAlign = atoi(tokens[1]); 170 ALOGI("Left Align: %d", mPanelInfo.mLeftAlign); 171 } 172 if(!strncmp(tokens[0], "walign", strlen("walign"))) { 173 mPanelInfo.mWidthAlign = atoi(tokens[1]); 174 ALOGI("Width Align: %d", mPanelInfo.mWidthAlign); 175 } 176 if(!strncmp(tokens[0], "ystart", strlen("ystart"))) { 177 mPanelInfo.mTopAlign = atoi(tokens[1]); 178 ALOGI("Top Align: %d", mPanelInfo.mTopAlign); 179 } 180 if(!strncmp(tokens[0], "halign", strlen("halign"))) { 181 mPanelInfo.mHeightAlign = atoi(tokens[1]); 182 ALOGI("Height Align: %d", mPanelInfo.mHeightAlign); 183 } 184 } 185 } 186 fclose(panelInfoNodeFP); 187 } else { 188 ALOGE("Failed to open msm_fb_panel_info node"); 189 } 190 } 191 192 // This function reads the sysfs node to read MDP capabilities 193 // and parses and updates information accordingly. 194 bool MDPVersion::updateSysFsInfo() { 195 FILE *sysfsFd; 196 size_t len = PAGE_SIZE; 197 ssize_t read; 198 char *line = NULL; 199 char sysfsPath[255]; 200 memset(sysfsPath, 0, sizeof(sysfsPath)); 201 snprintf(sysfsPath , sizeof(sysfsPath), 202 "/sys/class/graphics/fb0/mdp/caps"); 203 char property[PROPERTY_VALUE_MAX]; 204 bool enableMacroTile = false; 205 206 if((property_get("persist.hwc.macro_tile_enable", property, NULL) > 0) && 207 (!strncmp(property, "1", PROPERTY_VALUE_MAX ) || 208 (!strncasecmp(property,"true", PROPERTY_VALUE_MAX )))) { 209 enableMacroTile = true; 210 } 211 212 sysfsFd = fopen(sysfsPath, "rb"); 213 214 if (sysfsFd == NULL) { 215 ALOGE("%s: sysFsFile file '%s' not found", 216 __FUNCTION__, sysfsPath); 217 return false; 218 } else { 219 line = (char *) malloc(len); 220 while((read = getline(&line, &len, sysfsFd)) != -1) { 221 int index=0; 222 char *tokens[10]; 223 memset(tokens, 0, sizeof(tokens)); 224 225 // parse the line and update information accordingly 226 if(!tokenizeParams(line, TOKEN_PARAMS_DELIM, tokens, &index)) { 227 if(!strncmp(tokens[0], "hw_rev", strlen("hw_rev"))) { 228 mMdpRev = atoi(tokens[1]); 229 } 230 else if(!strncmp(tokens[0], "rgb_pipes", strlen("rgb_pipes"))) { 231 mRGBPipes = (uint8_t)atoi(tokens[1]); 232 } 233 else if(!strncmp(tokens[0], "vig_pipes", strlen("vig_pipes"))) { 234 mVGPipes = (uint8_t)atoi(tokens[1]); 235 } 236 else if(!strncmp(tokens[0], "dma_pipes", strlen("dma_pipes"))) { 237 mDMAPipes = (uint8_t)atoi(tokens[1]); 238 } 239 else if(!strncmp(tokens[0], "max_downscale_ratio", 240 strlen("max_downscale_ratio"))) { 241 mMDPDownscale = atoi(tokens[1]); 242 } 243 else if(!strncmp(tokens[0], "max_upscale_ratio", 244 strlen("max_upscale_ratio"))) { 245 mMDPUpscale = atoi(tokens[1]); 246 } else if(!strncmp(tokens[0], "max_bandwidth_low", 247 strlen("max_bandwidth_low"))) { 248 mLowBw = atol(tokens[1]); 249 } else if(!strncmp(tokens[0], "max_bandwidth_high", 250 strlen("max_bandwidth_high"))) { 251 mHighBw = atol(tokens[1]); 252 } else if(!strncmp(tokens[0], "features", strlen("features"))) { 253 for(int i=1; i<index;i++) { 254 if(!strncmp(tokens[i], "bwc", strlen("bwc"))) { 255 mFeatures |= MDP_BWC_EN; 256 } 257 else if(!strncmp(tokens[i], "decimation", 258 strlen("decimation"))) { 259 mFeatures |= MDP_DECIMATION_EN; 260 } 261 else if(!strncmp(tokens[i], "tile_format", 262 strlen("tile_format"))) { 263 if(enableMacroTile) 264 mMacroTileEnabled = true; 265 } else if(!strncmp(tokens[i], "src_split", 266 strlen("src_split"))) { 267 mSourceSplit = true; 268 } 269 else if(!strncmp(tokens[i], "non_scalar_rgb", 270 strlen("non_scalar_rgb"))) { 271 mRGBHasNoScalar = true; 272 } 273 } 274 } 275 } 276 } 277 free(line); 278 fclose(sysfsFd); 279 } 280 ALOGD_IF(DEBUG, "%s: mMDPVersion: %d mMdpRev: %x mRGBPipes:%d," 281 "mVGPipes:%d", __FUNCTION__, mMDPVersion, mMdpRev, 282 mRGBPipes, mVGPipes); 283 ALOGD_IF(DEBUG, "%s:mDMAPipes:%d \t mMDPDownscale:%d, mFeatures:%d", 284 __FUNCTION__, mDMAPipes, mMDPDownscale, mFeatures); 285 ALOGD_IF(DEBUG, "%s:mLowBw: %lu mHighBw: %lu", __FUNCTION__, mLowBw, 286 mHighBw); 287 288 return true; 289 } 290 291 // This function reads the sysfs node to read MDP capabilities 292 // and parses and updates information accordingly. 293 bool MDPVersion::updateSplitInfo() { 294 if(mMDPVersion >= MDSS_V5) { 295 char split[64] = {0}; 296 FILE* fp = fopen("/sys/class/graphics/fb0/msm_fb_split", "r"); 297 if(fp){ 298 //Format "left right" space as delimiter 299 if(fread(split, sizeof(char), 64, fp)) { 300 split[sizeof(split) - 1] = '\0'; 301 mSplit.mLeft = atoi(split); 302 ALOGI_IF(mSplit.mLeft, "Left Split=%d", mSplit.mLeft); 303 char *rght = strpbrk(split, " "); 304 if(rght) 305 mSplit.mRight = atoi(rght + 1); 306 ALOGI_IF(mSplit.mRight, "Right Split=%d", mSplit.mRight); 307 } 308 } else { 309 ALOGE("Failed to open mdss_fb_split node"); 310 return false; 311 } 312 if(fp) 313 fclose(fp); 314 } 315 return true; 316 } 317 318 319 bool MDPVersion::supportsDecimation() { 320 return mFeatures & MDP_DECIMATION_EN; 321 } 322 323 uint32_t MDPVersion::getMaxMDPDownscale() { 324 return mMDPDownscale; 325 } 326 327 uint32_t MDPVersion::getMaxMDPUpscale() { 328 return mMDPUpscale; 329 } 330 331 bool MDPVersion::supportsBWC() { 332 // BWC - Bandwidth Compression 333 return (mFeatures & MDP_BWC_EN); 334 } 335 336 bool MDPVersion::supportsMacroTile() { 337 // MACRO TILE support 338 return mMacroTileEnabled; 339 } 340 341 bool MDPVersion::isSrcSplit() const { 342 return mSourceSplit; 343 } 344 345 bool MDPVersion::isRGBScalarSupported() const { 346 return (!mRGBHasNoScalar); 347 } 348 349 bool MDPVersion::is8x26() { 350 return (mMdpRev >= MDSS_MDP_HW_REV_101 and 351 mMdpRev < MDSS_MDP_HW_REV_102); 352 } 353 354 bool MDPVersion::is8x74v2() { 355 return (mMdpRev >= MDSS_MDP_HW_REV_102 and 356 mMdpRev < MDSS_MDP_HW_REV_103); 357 } 358 359 bool MDPVersion::is8084() { 360 return (mMdpRev >= MDSS_MDP_HW_REV_103 and 361 mMdpRev < MDSS_MDP_HW_REV_104); 362 } 363 364 bool MDPVersion::is8092() { 365 return (mMdpRev >= MDSS_MDP_HW_REV_200 and 366 mMdpRev < MDSS_MDP_HW_REV_206); 367 } 368 369 bool MDPVersion::is8x16() { 370 return (mMdpRev >= MDSS_MDP_HW_REV_106 and 371 mMdpRev < MDSS_MDP_HW_REV_107); 372 } 373 374 }; //namespace qdutils 375 376
