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 #include "qd_utils.h"
33
34 #define DEBUG 0
35
36 ANDROID_SINGLETON_STATIC_INSTANCE(qdutils::MDPVersion);
37 namespace qdutils {
38
39 #define TOKEN_PARAMS_DELIM "="
40
41 // chip variants have same major number and minor numbers usually vary
42 // for e.g., MDSS_MDP_HW_REV_101 is 0x10010000
43 // 1001 - major number
44 // 0000 - minor number
45 // 8x26 v1 minor number is 0000
46 // v2 minor number is 0001 etc..
47 #ifndef MDSS_MDP_HW_REV_100
48 #define MDSS_MDP_HW_REV_100 0x10000000 //8974 v1
49 #endif
50 #ifndef MDSS_MDP_HW_REV_101
51 #define MDSS_MDP_HW_REV_101 0x10010000 //8x26
52 #endif
53 #ifndef MDSS_MDP_HW_REV_102
54 #define MDSS_MDP_HW_REV_102 0x10020000 //8974 v2
55 #endif
56 #ifndef MDSS_MDP_HW_REV_103
57 #define MDSS_MDP_HW_REV_103 0x10030000 //8084
58 #endif
59 #ifndef MDSS_MDP_HW_REV_104
60 #define MDSS_MDP_HW_REV_104 0x10040000 //Next version
61 #endif
62 #ifndef MDSS_MDP_HW_REV_105
63 #define MDSS_MDP_HW_REV_105 0x10050000 //8994
64 #endif
65 #ifndef MDSS_MDP_HW_REV_106
66 #define MDSS_MDP_HW_REV_106 0x10060000 //8x16
67 #endif
68 #ifndef MDSS_MDP_HW_REV_107
69 #define MDSS_MDP_HW_REV_107 0x10070000 //Next version
70 #endif
71 #ifndef MDSS_MDP_HW_REV_108
72 #define MDSS_MDP_HW_REV_108 0x10080000 //8x39 & 8x36
73 #endif
74 #ifndef MDSS_MDP_HW_REV_109
75 #define MDSS_MDP_HW_REV_109 0x10090000 //Next version
76 #endif
77 #ifndef MDSS_MDP_HW_REV_200
78 #define MDSS_MDP_HW_REV_200 0x20000000 //8092
79 #endif
80 #ifndef MDSS_MDP_HW_REV_206
81 #define MDSS_MDP_HW_REV_206 0x20060000 //Future
82 #endif
83
MDPVersion()84 MDPVersion::MDPVersion()
85 {
86 mMDPVersion = MDSS_V5;
87 mMdpRev = 0;
88 mRGBPipes = 0;
89 mVGPipes = 0;
90 mDMAPipes = 0;
91 mFeatures = 0;
92 mMDPUpscale = 1;
93 mMDPDownscale = 1;
94 mMacroTileEnabled = false;
95 mLowBw = 0;
96 mHighBw = 0;
97 mSourceSplit = false;
98 mSourceSplitAlways = false;
99 mRGBHasNoScalar = false;
100 mRotDownscale = false;
101
102 // this is the default limit of mixer unless driver reports it.
103 // For resolutions beyond this, we use dual/split overlay pipes.
104 mMaxMixerWidth = 2048;
105
106 updatePanelInfo();
107
108 if(!updateSysFsInfo()) {
109 ALOGE("Unable to read display sysfs node");
110 }
111 if (mMdpRev == MDP_V3_0_4){
112 mMDPVersion = MDP_V3_0_4;
113 }
114 else if (mMdpRev == MDP_V3_0_5){
115 mMDPVersion = MDP_V3_0_5;
116 }
117
118 mHasOverlay = false;
119 if((mMDPVersion >= MDP_V4_0) ||
120 (mMDPVersion == MDP_V_UNKNOWN) ||
121 (mMDPVersion == MDP_V3_0_4) ||
122 (mMDPVersion == MDP_V3_0_5))
123 mHasOverlay = true;
124 if(!updateSplitInfo()) {
125 ALOGE("Unable to read display split node");
126 }
127 }
128
~MDPVersion()129 MDPVersion::~MDPVersion() {
130 close(mFd);
131 }
132
tokenizeParams(char * inputParams,const char * delim,char * tokenStr[],int * idx)133 int MDPVersion::tokenizeParams(char *inputParams, const char *delim,
134 char* tokenStr[], int *idx) {
135 char *tmp_token = NULL;
136 char *temp_ptr;
137 int index = 0;
138 if (!inputParams) {
139 return -1;
140 }
141 tmp_token = strtok_r(inputParams, delim, &temp_ptr);
142 while (tmp_token != NULL) {
143 tokenStr[index++] = tmp_token;
144 tmp_token = strtok_r(NULL, " ", &temp_ptr);
145 }
146 *idx = index;
147 return 0;
148 }
149 // This function reads the sysfs node to read the primary panel type
150 // and updates information accordingly
updatePanelInfo()151 void MDPVersion::updatePanelInfo() {
152 FILE *displayDeviceFP = NULL;
153 FILE *panelInfoNodeFP = NULL;
154 char fbType[MAX_FRAME_BUFFER_NAME_SIZE];
155 const char *strCmdPanel = "mipi dsi cmd panel";
156 const char *strVideoPanel = "mipi dsi video panel";
157 const char *strLVDSPanel = "lvds panel";
158 const char *strEDPPanel = "edp panel";
159
160 displayDeviceFP = fopen("/sys/class/graphics/fb0/msm_fb_type", "r");
161 if(displayDeviceFP){
162 fread(fbType, sizeof(char), MAX_FRAME_BUFFER_NAME_SIZE,
163 displayDeviceFP);
164 if(strncmp(fbType, strCmdPanel, strlen(strCmdPanel)) == 0) {
165 mPanelInfo.mType = MIPI_CMD_PANEL;
166 }
167 else if(strncmp(fbType, strVideoPanel, strlen(strVideoPanel)) == 0) {
168 mPanelInfo.mType = MIPI_VIDEO_PANEL;
169 }
170 else if(strncmp(fbType, strLVDSPanel, strlen(strLVDSPanel)) == 0) {
171 mPanelInfo.mType = LVDS_PANEL;
172 }
173 else if(strncmp(fbType, strEDPPanel, strlen(strEDPPanel)) == 0) {
174 mPanelInfo.mType = EDP_PANEL;
175 }
176 fclose(displayDeviceFP);
177 } else {
178 ALOGE("Unable to read Primary Panel Information");
179 }
180
181 panelInfoNodeFP = fopen("/sys/class/graphics/fb0/msm_fb_panel_info", "r");
182 if(panelInfoNodeFP){
183 size_t len = PAGE_SIZE;
184 ssize_t read;
185 char *readLine = (char *) malloc (len);
186 char property[PROPERTY_VALUE_MAX];
187 while((read = getline((char **)&readLine, &len,
188 panelInfoNodeFP)) != -1) {
189 int token_ct=0;
190 char *tokens[10];
191 memset(tokens, 0, sizeof(tokens));
192
193 if(!tokenizeParams(readLine, TOKEN_PARAMS_DELIM, tokens,
194 &token_ct)) {
195 if(!strncmp(tokens[0], "pu_en", strlen("pu_en"))) {
196 mPanelInfo.mPartialUpdateEnable = atoi(tokens[1]);
197 ALOGI("PartialUpdate status: %s",
198 mPanelInfo.mPartialUpdateEnable? "Enabled" :
199 "Disabled");
200 }
201 if(!strncmp(tokens[0], "xstart", strlen("xstart"))) {
202 mPanelInfo.mLeftAlign = atoi(tokens[1]);
203 ALOGI("Left Align: %d", mPanelInfo.mLeftAlign);
204 }
205 if(!strncmp(tokens[0], "walign", strlen("walign"))) {
206 mPanelInfo.mWidthAlign = atoi(tokens[1]);
207 ALOGI("Width Align: %d", mPanelInfo.mWidthAlign);
208 }
209 if(!strncmp(tokens[0], "ystart", strlen("ystart"))) {
210 mPanelInfo.mTopAlign = atoi(tokens[1]);
211 ALOGI("Top Align: %d", mPanelInfo.mTopAlign);
212 }
213 if(!strncmp(tokens[0], "halign", strlen("halign"))) {
214 mPanelInfo.mHeightAlign = atoi(tokens[1]);
215 ALOGI("Height Align: %d", mPanelInfo.mHeightAlign);
216 }
217 if(!strncmp(tokens[0], "min_w", strlen("min_w"))) {
218 mPanelInfo.mMinROIWidth = atoi(tokens[1]);
219 ALOGI("Min ROI Width: %d", mPanelInfo.mMinROIWidth);
220 }
221 if(!strncmp(tokens[0], "min_h", strlen("min_h"))) {
222 mPanelInfo.mMinROIHeight = atoi(tokens[1]);
223 ALOGI("Min ROI Height: %d", mPanelInfo.mMinROIHeight);
224 }
225 if(!strncmp(tokens[0], "roi_merge", strlen("roi_merge"))) {
226 mPanelInfo.mNeedsROIMerge = atoi(tokens[1]);
227 ALOGI("Needs ROI Merge: %d", mPanelInfo.mNeedsROIMerge);
228 }
229 if(!strncmp(tokens[0], "dyn_fps_en", strlen("dyn_fps_en"))) {
230 mPanelInfo.mDynFpsSupported = atoi(tokens[1]);
231 ALOGI("Dynamic Fps: %s", mPanelInfo.mDynFpsSupported ?
232 "Enabled" : "Disabled");
233 }
234 if(!strncmp(tokens[0], "min_fps", strlen("min_fps"))) {
235 mPanelInfo.mMinFps = atoi(tokens[1]);
236 ALOGI("Min Panel fps: %d", mPanelInfo.mMinFps);
237 }
238 if(!strncmp(tokens[0], "max_fps", strlen("max_fps"))) {
239 mPanelInfo.mMaxFps = atoi(tokens[1]);
240 ALOGI("Max Panel fps: %d", mPanelInfo.mMaxFps);
241 }
242 }
243 }
244 if((property_get("persist.hwc.pubypass", property, 0) > 0) &&
245 (!strncmp(property, "1", PROPERTY_VALUE_MAX ) ||
246 (!strncasecmp(property,"true", PROPERTY_VALUE_MAX )))) {
247 mPanelInfo.mPartialUpdateEnable = 0;
248 ALOGI("PartialUpdate disabled by property");
249 }
250 fclose(panelInfoNodeFP);
251 } else {
252 ALOGE("Failed to open msm_fb_panel_info node");
253 }
254 }
255
256 // This function reads the sysfs node to read MDP capabilities
257 // and parses and updates information accordingly.
updateSysFsInfo()258 bool MDPVersion::updateSysFsInfo() {
259 FILE *sysfsFd;
260 size_t len = PAGE_SIZE;
261 ssize_t read;
262 char *line = NULL;
263 char sysfsPath[255];
264 memset(sysfsPath, 0, sizeof(sysfsPath));
265 snprintf(sysfsPath , sizeof(sysfsPath),
266 "/sys/class/graphics/fb0/mdp/caps");
267 char property[PROPERTY_VALUE_MAX];
268 bool enableMacroTile = false;
269
270 if((property_get("persist.hwc.macro_tile_enable", property, NULL) > 0) &&
271 (!strncmp(property, "1", PROPERTY_VALUE_MAX ) ||
272 (!strncasecmp(property,"true", PROPERTY_VALUE_MAX )))) {
273 enableMacroTile = true;
274 }
275
276 sysfsFd = fopen(sysfsPath, "rb");
277
278 if (sysfsFd == NULL) {
279 ALOGE("%s: sysFsFile file '%s' not found",
280 __FUNCTION__, sysfsPath);
281 return false;
282 } else {
283 line = (char *) malloc(len);
284 while((read = getline(&line, &len, sysfsFd)) != -1) {
285 int index=0;
286 char *tokens[10];
287 memset(tokens, 0, sizeof(tokens));
288
289 // parse the line and update information accordingly
290 if(!tokenizeParams(line, TOKEN_PARAMS_DELIM, tokens, &index)) {
291 if(!strncmp(tokens[0], "hw_rev", strlen("hw_rev"))) {
292 mMdpRev = atoi(tokens[1]);
293 }
294 else if(!strncmp(tokens[0], "rgb_pipes", strlen("rgb_pipes"))) {
295 mRGBPipes = (uint8_t)atoi(tokens[1]);
296 }
297 else if(!strncmp(tokens[0], "vig_pipes", strlen("vig_pipes"))) {
298 mVGPipes = (uint8_t)atoi(tokens[1]);
299 }
300 else if(!strncmp(tokens[0], "dma_pipes", strlen("dma_pipes"))) {
301 mDMAPipes = (uint8_t)atoi(tokens[1]);
302 }
303 else if(!strncmp(tokens[0], "max_downscale_ratio",
304 strlen("max_downscale_ratio"))) {
305 mMDPDownscale = atoi(tokens[1]);
306 }
307 else if(!strncmp(tokens[0], "max_upscale_ratio",
308 strlen("max_upscale_ratio"))) {
309 mMDPUpscale = atoi(tokens[1]);
310 } else if(!strncmp(tokens[0], "max_bandwidth_low",
311 strlen("max_bandwidth_low"))) {
312 mLowBw = atol(tokens[1]);
313 } else if(!strncmp(tokens[0], "max_bandwidth_high",
314 strlen("max_bandwidth_high"))) {
315 mHighBw = atol(tokens[1]);
316 } else if(!strncmp(tokens[0], "max_mixer_width",
317 strlen("max_mixer_width"))) {
318 mMaxMixerWidth = atoi(tokens[1]);
319 } else if(!strncmp(tokens[0], "features", strlen("features"))) {
320 for(int i=1; i<index;i++) {
321 if(!strncmp(tokens[i], "bwc", strlen("bwc"))) {
322 mFeatures |= MDP_BWC_EN;
323 } else if(!strncmp(tokens[i], "decimation",
324 strlen("decimation"))) {
325 mFeatures |= MDP_DECIMATION_EN;
326 } else if(!strncmp(tokens[i], "tile_format",
327 strlen("tile_format"))) {
328 if(enableMacroTile)
329 mMacroTileEnabled = true;
330 } else if(!strncmp(tokens[i], "src_split",
331 strlen("src_split"))) {
332 mSourceSplit = true;
333 } else if(!strncmp(tokens[i], "non_scalar_rgb",
334 strlen("non_scalar_rgb"))) {
335 mRGBHasNoScalar = true;
336 } else if(!strncmp(tokens[i], "rotator_downscale",
337 strlen("rotator_downscale"))) {
338 mRotDownscale = true;
339 }
340 }
341 }
342 }
343 }
344 free(line);
345 fclose(sysfsFd);
346 }
347
348 if(mMDPVersion >= qdutils::MDP_V4_2 and mMDPVersion < qdutils::MDSS_V5) {
349 mRotDownscale = true;
350 }
351
352 if(mSourceSplit) {
353 memset(sysfsPath, 0, sizeof(sysfsPath));
354 snprintf(sysfsPath , sizeof(sysfsPath),
355 "/sys/class/graphics/fb0/msm_fb_src_split_info");
356
357 sysfsFd = fopen(sysfsPath, "rb");
358 if (sysfsFd == NULL) {
359 ALOGE("%s: Opening file %s failed with error %s", __FUNCTION__,
360 sysfsPath, strerror(errno));
361 return false;
362 } else {
363 line = (char *) malloc(len);
364 if((read = getline(&line, &len, sysfsFd)) != -1) {
365 if(!strncmp(line, "src_split_always",
366 strlen("src_split_always"))) {
367 mSourceSplitAlways = true;
368 }
369 }
370 free(line);
371 fclose(sysfsFd);
372 }
373 }
374
375 ALOGD_IF(DEBUG, "%s: mMDPVersion: %d mMdpRev: %x mRGBPipes:%d,"
376 "mVGPipes:%d", __FUNCTION__, mMDPVersion, mMdpRev,
377 mRGBPipes, mVGPipes);
378 ALOGD_IF(DEBUG, "%s:mDMAPipes:%d \t mMDPDownscale:%d, mFeatures:%d",
379 __FUNCTION__, mDMAPipes, mMDPDownscale, mFeatures);
380 ALOGD_IF(DEBUG, "%s:mLowBw: %lu mHighBw: %lu", __FUNCTION__, mLowBw,
381 mHighBw);
382
383 return true;
384 }
385
386 // This function reads the sysfs node to read MDP capabilities
387 // and parses and updates information accordingly.
updateSplitInfo()388 bool MDPVersion::updateSplitInfo() {
389 if(mMDPVersion >= MDSS_V5) {
390 char split[64] = {0};
391 FILE* fp = fopen("/sys/class/graphics/fb0/msm_fb_split", "r");
392 if(fp){
393 //Format "left right" space as delimiter
394 if(fread(split, sizeof(char), 64, fp)) {
395 split[sizeof(split) - 1] = '\0';
396 mSplit.mLeft = atoi(split);
397 ALOGI_IF(mSplit.mLeft, "Left Split=%d", mSplit.mLeft);
398 char *rght = strpbrk(split, " ");
399 if(rght)
400 mSplit.mRight = atoi(rght + 1);
401 ALOGI_IF(mSplit.mRight, "Right Split=%d", mSplit.mRight);
402 }
403 } else {
404 ALOGE("Failed to open mdss_fb_split node");
405 return false;
406 }
407 if(fp)
408 fclose(fp);
409 }
410 return true;
411 }
412
413
hasMinCropWidthLimitation() const414 bool MDPVersion::hasMinCropWidthLimitation() const {
415 return mMdpRev <= MDSS_MDP_HW_REV_102;
416 }
417
supportsDecimation()418 bool MDPVersion::supportsDecimation() {
419 return mFeatures & MDP_DECIMATION_EN;
420 }
421
getMaxMDPDownscale()422 uint32_t MDPVersion::getMaxMDPDownscale() {
423 return mMDPDownscale;
424 }
425
getMaxMDPUpscale()426 uint32_t MDPVersion::getMaxMDPUpscale() {
427 return mMDPUpscale;
428 }
429
supportsBWC()430 bool MDPVersion::supportsBWC() {
431 // BWC - Bandwidth Compression
432 return (mFeatures & MDP_BWC_EN);
433 }
434
supportsMacroTile()435 bool MDPVersion::supportsMacroTile() {
436 // MACRO TILE support
437 return mMacroTileEnabled;
438 }
439
isSrcSplit() const440 bool MDPVersion::isSrcSplit() const {
441 return mSourceSplit;
442 }
443
isSrcSplitAlways() const444 bool MDPVersion::isSrcSplitAlways() const {
445 return mSourceSplitAlways;
446 }
447
isRGBScalarSupported() const448 bool MDPVersion::isRGBScalarSupported() const {
449 return (!mRGBHasNoScalar);
450 }
451
is8x26()452 bool MDPVersion::is8x26() {
453 return (mMdpRev >= MDSS_MDP_HW_REV_101 and
454 mMdpRev < MDSS_MDP_HW_REV_102);
455 }
456
is8x74v2()457 bool MDPVersion::is8x74v2() {
458 return (mMdpRev >= MDSS_MDP_HW_REV_102 and
459 mMdpRev < MDSS_MDP_HW_REV_103);
460 }
461
is8084()462 bool MDPVersion::is8084() {
463 return (mMdpRev >= MDSS_MDP_HW_REV_103 and
464 mMdpRev < MDSS_MDP_HW_REV_104);
465 }
466
is8092()467 bool MDPVersion::is8092() {
468 return (mMdpRev >= MDSS_MDP_HW_REV_200 and
469 mMdpRev < MDSS_MDP_HW_REV_206);
470 }
471
is8994()472 bool MDPVersion::is8994() {
473 return (mMdpRev >= MDSS_MDP_HW_REV_105 and
474 mMdpRev < MDSS_MDP_HW_REV_106);
475 }
476
is8x16()477 bool MDPVersion::is8x16() {
478 return (mMdpRev >= MDSS_MDP_HW_REV_106 and
479 mMdpRev < MDSS_MDP_HW_REV_107);
480 }
481
is8x39()482 bool MDPVersion::is8x39() {
483 return (mMdpRev >= MDSS_MDP_HW_REV_108 and
484 mMdpRev < MDSS_MDP_HW_REV_109);
485 }
486
487
488 }; //namespace qdutils
489
490