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_HW_REV_100 41 #define MDSS_MDP_HW_REV_100 0x10000000 //8974 v1 42 #endif 43 #ifndef MDSS_MDP_HW_REV_101 44 #define MDSS_MDP_HW_REV_101 0x10010000 //8x26 45 #endif 46 #ifndef MDSS_MDP_HW_REV_102 47 #define MDSS_MDP_HW_REV_102 0x10020000 //8974 v2 48 #endif 49 #ifndef MDSS_MDP_HW_REV_103 50 #define MDSS_MDP_HW_REV_103 0x10030000 //8084 51 #endif 52 #ifndef MDSS_MDP_HW_REV_104 53 #define MDSS_MDP_HW_REV_104 0x10040000 //Next version 54 #endif 55 #ifndef MDSS_MDP_HW_REV_105 56 #define MDSS_MDP_HW_REV_105 0x10050000 //Next version 57 #endif 58 #ifndef MDSS_MDP_HW_REV_106 59 #define MDSS_MDP_HW_REV_106 0x10060000 //8x16 60 #endif 61 #ifndef MDSS_MDP_HW_REV_107 62 #define MDSS_MDP_HW_REV_107 0x10070000 //Next version 63 #endif 64 #ifndef MDSS_MDP_HW_REV_200 65 #define MDSS_MDP_HW_REV_200 0x20000000 //8092 66 #endif 67 #ifndef MDSS_MDP_HW_REV_206 68 #define MDSS_MDP_HW_REV_206 0x20060000 //Future 69 #endif 70 71 MDPVersion::MDPVersion() 72 { 73 mMDPVersion = MDSS_V5; 74 mMdpRev = 0; 75 mRGBPipes = 0; 76 mVGPipes = 0; 77 mDMAPipes = 0; 78 mFeatures = 0; 79 mMDPUpscale = 0; 80 mMDPDownscale = 0; 81 mMacroTileEnabled = false; 82 mLowBw = 0; 83 mHighBw = 0; 84 mSourceSplit = false; 85 mSourceSplitAlways = false; 86 mRGBHasNoScalar = false; 87 88 updatePanelInfo(); 89 90 if(!updateSysFsInfo()) { 91 ALOGE("Unable to read display sysfs node"); 92 } 93 if (mMdpRev == MDP_V3_0_4){ 94 mMDPVersion = MDP_V3_0_4; 95 } 96 97 mHasOverlay = false; 98 if((mMDPVersion >= MDP_V4_0) || 99 (mMDPVersion == MDP_V_UNKNOWN) || 100 (mMDPVersion == MDP_V3_0_4)) 101 mHasOverlay = true; 102 if(!updateSplitInfo()) { 103 ALOGE("Unable to read display split node"); 104 } 105 } 106 107 MDPVersion::~MDPVersion() { 108 close(mFd); 109 } 110 111 int MDPVersion::tokenizeParams(char *inputParams, const char *delim, 112 char* tokenStr[], int *idx) { 113 char *tmp_token = NULL; 114 char *temp_ptr; 115 int index = 0; 116 if (!inputParams) { 117 return -1; 118 } 119 tmp_token = strtok_r(inputParams, delim, &temp_ptr); 120 while (tmp_token != NULL) { 121 tokenStr[index++] = tmp_token; 122 tmp_token = strtok_r(NULL, " ", &temp_ptr); 123 } 124 *idx = index; 125 return 0; 126 } 127 // This function reads the sysfs node to read the primary panel type 128 // and updates information accordingly 129 void MDPVersion::updatePanelInfo() { 130 FILE *displayDeviceFP = NULL; 131 FILE *panelInfoNodeFP = NULL; 132 const int MAX_FRAME_BUFFER_NAME_SIZE = 128; 133 char fbType[MAX_FRAME_BUFFER_NAME_SIZE]; 134 char panelInfo[MAX_FRAME_BUFFER_NAME_SIZE]; 135 const char *strCmdPanel = "mipi dsi cmd panel"; 136 const char *strVideoPanel = "mipi dsi video panel"; 137 const char *strLVDSPanel = "lvds panel"; 138 const char *strEDPPanel = "edp panel"; 139 140 displayDeviceFP = fopen("/sys/class/graphics/fb0/msm_fb_type", "r"); 141 if(displayDeviceFP){ 142 fread(fbType, sizeof(char), MAX_FRAME_BUFFER_NAME_SIZE, 143 displayDeviceFP); 144 if(strncmp(fbType, strCmdPanel, strlen(strCmdPanel)) == 0) { 145 mPanelInfo.mType = MIPI_CMD_PANEL; 146 } 147 else if(strncmp(fbType, strVideoPanel, strlen(strVideoPanel)) == 0) { 148 mPanelInfo.mType = MIPI_VIDEO_PANEL; 149 } 150 else if(strncmp(fbType, strLVDSPanel, strlen(strLVDSPanel)) == 0) { 151 mPanelInfo.mType = LVDS_PANEL; 152 } 153 else if(strncmp(fbType, strEDPPanel, strlen(strEDPPanel)) == 0) { 154 mPanelInfo.mType = EDP_PANEL; 155 } 156 fclose(displayDeviceFP); 157 } else { 158 ALOGE("Unable to read Primary Panel Information"); 159 } 160 161 panelInfoNodeFP = fopen("/sys/class/graphics/fb0/msm_fb_panel_info", "r"); 162 if(panelInfoNodeFP){ 163 size_t len = PAGE_SIZE; 164 ssize_t read; 165 char *readLine = (char *) malloc (len); 166 while((read = getline((char **)&readLine, &len, 167 panelInfoNodeFP)) != -1) { 168 int token_ct=0; 169 char *tokens[10]; 170 memset(tokens, 0, sizeof(tokens)); 171 172 if(!tokenizeParams(readLine, TOKEN_PARAMS_DELIM, tokens, 173 &token_ct)) { 174 if(!strncmp(tokens[0], "pu_en", strlen("pu_en"))) { 175 mPanelInfo.mPartialUpdateEnable = atoi(tokens[1]); 176 ALOGI("PartialUpdate status: %s", 177 mPanelInfo.mPartialUpdateEnable? "Enabled" : 178 "Disabled"); 179 } 180 if(!strncmp(tokens[0], "xstart", strlen("xstart"))) { 181 mPanelInfo.mLeftAlign = atoi(tokens[1]); 182 ALOGI("Left Align: %d", mPanelInfo.mLeftAlign); 183 } 184 if(!strncmp(tokens[0], "walign", strlen("walign"))) { 185 mPanelInfo.mWidthAlign = atoi(tokens[1]); 186 ALOGI("Width Align: %d", mPanelInfo.mWidthAlign); 187 } 188 if(!strncmp(tokens[0], "ystart", strlen("ystart"))) { 189 mPanelInfo.mTopAlign = atoi(tokens[1]); 190 ALOGI("Top Align: %d", mPanelInfo.mTopAlign); 191 } 192 if(!strncmp(tokens[0], "halign", strlen("halign"))) { 193 mPanelInfo.mHeightAlign = atoi(tokens[1]); 194 ALOGI("Height Align: %d", mPanelInfo.mHeightAlign); 195 } 196 if(!strncmp(tokens[0], "min_w", strlen("min_w"))) { 197 mPanelInfo.mMinROIWidth = atoi(tokens[1]); 198 ALOGI("Min ROI Width: %d", mPanelInfo.mMinROIWidth); 199 } 200 if(!strncmp(tokens[0], "min_h", strlen("min_h"))) { 201 mPanelInfo.mMinROIHeight = atoi(tokens[1]); 202 ALOGI("Min ROI Height: %d", mPanelInfo.mMinROIHeight); 203 } 204 if(!strncmp(tokens[0], "roi_merge", strlen("roi_merge"))) { 205 mPanelInfo.mNeedsROIMerge = atoi(tokens[1]); 206 ALOGI("Needs ROI Merge: %d", mPanelInfo.mNeedsROIMerge); 207 } 208 } 209 } 210 fclose(panelInfoNodeFP); 211 } else { 212 ALOGE("Failed to open msm_fb_panel_info node"); 213 } 214 } 215 216 // This function reads the sysfs node to read MDP capabilities 217 // and parses and updates information accordingly. 218 bool MDPVersion::updateSysFsInfo() { 219 FILE *sysfsFd; 220 size_t len = PAGE_SIZE; 221 ssize_t read; 222 char *line = NULL; 223 char sysfsPath[255]; 224 memset(sysfsPath, 0, sizeof(sysfsPath)); 225 snprintf(sysfsPath , sizeof(sysfsPath), 226 "/sys/class/graphics/fb0/mdp/caps"); 227 char property[PROPERTY_VALUE_MAX]; 228 bool enableMacroTile = false; 229 230 if((property_get("persist.hwc.macro_tile_enable", property, NULL) > 0) && 231 (!strncmp(property, "1", PROPERTY_VALUE_MAX ) || 232 (!strncasecmp(property,"true", PROPERTY_VALUE_MAX )))) { 233 enableMacroTile = true; 234 } 235 236 sysfsFd = fopen(sysfsPath, "rb"); 237 238 if (sysfsFd == NULL) { 239 ALOGE("%s: sysFsFile file '%s' not found", 240 __FUNCTION__, sysfsPath); 241 return false; 242 } else { 243 line = (char *) malloc(len); 244 while((read = getline(&line, &len, sysfsFd)) != -1) { 245 int index=0; 246 char *tokens[10]; 247 memset(tokens, 0, sizeof(tokens)); 248 249 // parse the line and update information accordingly 250 if(!tokenizeParams(line, TOKEN_PARAMS_DELIM, tokens, &index)) { 251 if(!strncmp(tokens[0], "hw_rev", strlen("hw_rev"))) { 252 mMdpRev = atoi(tokens[1]); 253 } 254 else if(!strncmp(tokens[0], "rgb_pipes", strlen("rgb_pipes"))) { 255 mRGBPipes = (uint8_t)atoi(tokens[1]); 256 } 257 else if(!strncmp(tokens[0], "vig_pipes", strlen("vig_pipes"))) { 258 mVGPipes = (uint8_t)atoi(tokens[1]); 259 } 260 else if(!strncmp(tokens[0], "dma_pipes", strlen("dma_pipes"))) { 261 mDMAPipes = (uint8_t)atoi(tokens[1]); 262 } 263 else if(!strncmp(tokens[0], "max_downscale_ratio", 264 strlen("max_downscale_ratio"))) { 265 mMDPDownscale = atoi(tokens[1]); 266 } 267 else if(!strncmp(tokens[0], "max_upscale_ratio", 268 strlen("max_upscale_ratio"))) { 269 mMDPUpscale = atoi(tokens[1]); 270 } else if(!strncmp(tokens[0], "max_bandwidth_low", 271 strlen("max_bandwidth_low"))) { 272 mLowBw = atol(tokens[1]); 273 } else if(!strncmp(tokens[0], "max_bandwidth_high", 274 strlen("max_bandwidth_high"))) { 275 mHighBw = atol(tokens[1]); 276 } else if(!strncmp(tokens[0], "features", strlen("features"))) { 277 for(int i=1; i<index;i++) { 278 if(!strncmp(tokens[i], "bwc", strlen("bwc"))) { 279 mFeatures |= MDP_BWC_EN; 280 } 281 else if(!strncmp(tokens[i], "decimation", 282 strlen("decimation"))) { 283 mFeatures |= MDP_DECIMATION_EN; 284 } 285 else if(!strncmp(tokens[i], "tile_format", 286 strlen("tile_format"))) { 287 if(enableMacroTile) 288 mMacroTileEnabled = true; 289 } else if(!strncmp(tokens[i], "src_split", 290 strlen("src_split"))) { 291 mSourceSplit = true; 292 } 293 else if(!strncmp(tokens[i], "non_scalar_rgb", 294 strlen("non_scalar_rgb"))) { 295 mRGBHasNoScalar = true; 296 } 297 } 298 } 299 } 300 } 301 free(line); 302 fclose(sysfsFd); 303 } 304 305 if(mSourceSplit) { 306 memset(sysfsPath, 0, sizeof(sysfsPath)); 307 snprintf(sysfsPath , sizeof(sysfsPath), 308 "/sys/class/graphics/fb0/msm_fb_src_split_info"); 309 310 sysfsFd = fopen(sysfsPath, "rb"); 311 if (sysfsFd == NULL) { 312 ALOGE("%s: Opening file %s failed with error %s", __FUNCTION__, 313 sysfsPath, strerror(errno)); 314 return false; 315 } else { 316 line = (char *) malloc(len); 317 if((read = getline(&line, &len, sysfsFd)) != -1) { 318 if(!strncmp(line, "src_split_always", 319 strlen("src_split_always"))) { 320 mSourceSplitAlways = true; 321 } 322 } 323 free(line); 324 fclose(sysfsFd); 325 } 326 } 327 328 ALOGD_IF(DEBUG, "%s: mMDPVersion: %d mMdpRev: %x mRGBPipes:%d," 329 "mVGPipes:%d", __FUNCTION__, mMDPVersion, mMdpRev, 330 mRGBPipes, mVGPipes); 331 ALOGD_IF(DEBUG, "%s:mDMAPipes:%d \t mMDPDownscale:%d, mFeatures:%d", 332 __FUNCTION__, mDMAPipes, mMDPDownscale, mFeatures); 333 ALOGD_IF(DEBUG, "%s:mLowBw: %lu mHighBw: %lu", __FUNCTION__, mLowBw, 334 mHighBw); 335 336 return true; 337 } 338 339 // This function reads the sysfs node to read MDP capabilities 340 // and parses and updates information accordingly. 341 bool MDPVersion::updateSplitInfo() { 342 if(mMDPVersion >= MDSS_V5) { 343 char split[64] = {0}; 344 FILE* fp = fopen("/sys/class/graphics/fb0/msm_fb_split", "r"); 345 if(fp){ 346 //Format "left right" space as delimiter 347 if(fread(split, sizeof(char), 64, fp)) { 348 split[sizeof(split) - 1] = '\0'; 349 mSplit.mLeft = atoi(split); 350 ALOGI_IF(mSplit.mLeft, "Left Split=%d", mSplit.mLeft); 351 char *rght = strpbrk(split, " "); 352 if(rght) 353 mSplit.mRight = atoi(rght + 1); 354 ALOGI_IF(mSplit.mRight, "Right Split=%d", mSplit.mRight); 355 } 356 } else { 357 ALOGE("Failed to open mdss_fb_split node"); 358 return false; 359 } 360 if(fp) 361 fclose(fp); 362 } 363 return true; 364 } 365 366 367 bool MDPVersion::hasMinCropWidthLimitation() const { 368 return mMdpRev <= MDSS_MDP_HW_REV_102; 369 } 370 371 bool MDPVersion::supportsDecimation() { 372 return mFeatures & MDP_DECIMATION_EN; 373 } 374 375 uint32_t MDPVersion::getMaxMDPDownscale() { 376 return mMDPDownscale; 377 } 378 379 uint32_t MDPVersion::getMaxMDPUpscale() { 380 return mMDPUpscale; 381 } 382 383 bool MDPVersion::supportsBWC() { 384 // BWC - Bandwidth Compression 385 return (mFeatures & MDP_BWC_EN); 386 } 387 388 bool MDPVersion::supportsMacroTile() { 389 // MACRO TILE support 390 return mMacroTileEnabled; 391 } 392 393 bool MDPVersion::isSrcSplit() const { 394 return mSourceSplit; 395 } 396 397 bool MDPVersion::isSrcSplitAlways() const { 398 return mSourceSplitAlways; 399 } 400 401 bool MDPVersion::isRGBScalarSupported() const { 402 return (!mRGBHasNoScalar); 403 } 404 405 bool MDPVersion::is8x26() { 406 return (mMdpRev >= MDSS_MDP_HW_REV_101 and 407 mMdpRev < MDSS_MDP_HW_REV_102); 408 } 409 410 bool MDPVersion::is8x74v2() { 411 return (mMdpRev >= MDSS_MDP_HW_REV_102 and 412 mMdpRev < MDSS_MDP_HW_REV_103); 413 } 414 415 bool MDPVersion::is8084() { 416 return (mMdpRev >= MDSS_MDP_HW_REV_103 and 417 mMdpRev < MDSS_MDP_HW_REV_104); 418 } 419 420 bool MDPVersion::is8092() { 421 return (mMdpRev >= MDSS_MDP_HW_REV_200 and 422 mMdpRev < MDSS_MDP_HW_REV_206); 423 } 424 425 bool MDPVersion::is8x16() { 426 return (mMdpRev >= MDSS_MDP_HW_REV_106 and 427 mMdpRev < MDSS_MDP_HW_REV_107); 428 } 429 430 }; //namespace qdutils 431 432
