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
36ANDROID_SINGLETON_STATIC_INSTANCE(qdutils::MDPVersion);
37namespace 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 //Unused
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 //Unused
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 //8994 v2
76#endif
77#ifndef MDSS_MDP_HW_REV_110
78#define MDSS_MDP_HW_REV_110 0x100a0000 //8992
79#endif
80#ifndef MDSS_MDP_HW_REV_200
81#define MDSS_MDP_HW_REV_200 0x20000000 //8092
82#endif
83#ifndef MDSS_MDP_HW_REV_206
84#define MDSS_MDP_HW_REV_206 0x20060000 //Future
85#endif
86
87MDPVersion::MDPVersion()
88{
89    mMDPVersion = MDSS_V5;
90    mMdpRev = 0;
91    mRGBPipes = 0;
92    mVGPipes = 0;
93    mDMAPipes = 0;
94    mFeatures = 0;
95    mMDPUpscale = 1;
96    mMDPDownscale = 1;
97    mMacroTileEnabled = false;
98    mLowBw = 0;
99    mHighBw = 0;
100    mSourceSplit = false;
101    mSourceSplitAlways = false;
102    mRGBHasNoScalar = false;
103    mRotDownscale = false;
104    mBlendStages = 4; //min no. of stages supported by MDP.
105
106    // this is the default limit of mixer unless driver reports it.
107    // For resolutions beyond this, we use dual mixer/ping pong split.
108    mMaxMixerWidth = 2048;
109
110    // Default width of MDSS SSPP. For layer resolutions beyond this, we drive
111    // using two SSPP's.
112    mMaxPipeWidth = 2048;
113
114    updatePanelInfo();
115
116    if(!updateSysFsInfo()) {
117        ALOGE("Unable to read display sysfs node");
118    }
119    if (mMdpRev == MDP_V3_0_4){
120        mMDPVersion = MDP_V3_0_4;
121    }
122    else if (mMdpRev == MDP_V3_0_5){
123        mMDPVersion = MDP_V3_0_5;
124    }
125
126    mHasOverlay = false;
127    if((mMDPVersion >= MDP_V4_0) ||
128       (mMDPVersion == MDP_V_UNKNOWN) ||
129       (mMDPVersion == MDP_V3_0_4) ||
130       (mMDPVersion == MDP_V3_0_5))
131        mHasOverlay = true;
132    if(!updateSplitInfo()) {
133        ALOGE("Unable to read display split node");
134    }
135}
136
137MDPVersion::~MDPVersion() {
138    close(mFd);
139}
140
141int MDPVersion::tokenizeParams(char *inputParams, const char *delim,
142                                char* tokenStr[], int *idx) {
143    char *tmp_token = NULL;
144    char *temp_ptr;
145    int index = 0;
146    if (!inputParams) {
147        return -1;
148    }
149    tmp_token = strtok_r(inputParams, delim, &temp_ptr);
150    while (tmp_token != NULL) {
151        tokenStr[index++] = tmp_token;
152        tmp_token = strtok_r(NULL, " ", &temp_ptr);
153    }
154    *idx = index;
155    return 0;
156}
157// This function reads the sysfs node to read the primary panel type
158// and updates information accordingly
159void  MDPVersion::updatePanelInfo() {
160    FILE *displayDeviceFP = NULL;
161    FILE *panelInfoNodeFP = NULL;
162    char fbType[MAX_FRAME_BUFFER_NAME_SIZE];
163    const char *strCmdPanel = "mipi dsi cmd panel";
164    const char *strVideoPanel = "mipi dsi video panel";
165    const char *strLVDSPanel = "lvds panel";
166    const char *strEDPPanel = "edp panel";
167
168    displayDeviceFP = fopen("/sys/class/graphics/fb0/msm_fb_type", "r");
169    if(displayDeviceFP){
170        fread(fbType, sizeof(char), MAX_FRAME_BUFFER_NAME_SIZE,
171                displayDeviceFP);
172        if(strncmp(fbType, strCmdPanel, strlen(strCmdPanel)) == 0) {
173            mPanelInfo.mType = MIPI_CMD_PANEL;
174        }
175        else if(strncmp(fbType, strVideoPanel, strlen(strVideoPanel)) == 0) {
176            mPanelInfo.mType = MIPI_VIDEO_PANEL;
177        }
178        else if(strncmp(fbType, strLVDSPanel, strlen(strLVDSPanel)) == 0) {
179            mPanelInfo.mType = LVDS_PANEL;
180        }
181        else if(strncmp(fbType, strEDPPanel, strlen(strEDPPanel)) == 0) {
182            mPanelInfo.mType = EDP_PANEL;
183        }
184        fclose(displayDeviceFP);
185    } else {
186        ALOGE("Unable to read Primary Panel Information");
187    }
188
189    panelInfoNodeFP = fopen("/sys/class/graphics/fb0/msm_fb_panel_info", "r");
190    if(panelInfoNodeFP){
191        size_t len = PAGE_SIZE;
192        ssize_t read;
193        char *readLine = (char *) malloc (len);
194        char property[PROPERTY_VALUE_MAX];
195        while((read = getline((char **)&readLine, &len,
196                              panelInfoNodeFP)) != -1) {
197            int token_ct=0;
198            char *tokens[10];
199            memset(tokens, 0, sizeof(tokens));
200
201            if(!tokenizeParams(readLine, TOKEN_PARAMS_DELIM, tokens,
202                               &token_ct)) {
203                if(!strncmp(tokens[0], "pu_en", strlen("pu_en"))) {
204                    mPanelInfo.mPartialUpdateEnable = atoi(tokens[1]);
205                    ALOGI("PartialUpdate status: %s",
206                          mPanelInfo.mPartialUpdateEnable? "Enabled" :
207                          "Disabled");
208                }
209                if(!strncmp(tokens[0], "xstart", strlen("xstart"))) {
210                    mPanelInfo.mLeftAlign = atoi(tokens[1]);
211                    ALOGI("Left Align: %d", mPanelInfo.mLeftAlign);
212                }
213                if(!strncmp(tokens[0], "walign", strlen("walign"))) {
214                    mPanelInfo.mWidthAlign = atoi(tokens[1]);
215                    ALOGI("Width Align: %d", mPanelInfo.mWidthAlign);
216                }
217                if(!strncmp(tokens[0], "ystart", strlen("ystart"))) {
218                    mPanelInfo.mTopAlign = atoi(tokens[1]);
219                    ALOGI("Top Align: %d", mPanelInfo.mTopAlign);
220                }
221                if(!strncmp(tokens[0], "halign", strlen("halign"))) {
222                    mPanelInfo.mHeightAlign = atoi(tokens[1]);
223                    ALOGI("Height Align: %d", mPanelInfo.mHeightAlign);
224                }
225                if(!strncmp(tokens[0], "min_w", strlen("min_w"))) {
226                    mPanelInfo.mMinROIWidth = atoi(tokens[1]);
227                    ALOGI("Min ROI Width: %d", mPanelInfo.mMinROIWidth);
228                }
229                if(!strncmp(tokens[0], "min_h", strlen("min_h"))) {
230                    mPanelInfo.mMinROIHeight = atoi(tokens[1]);
231                    ALOGI("Min ROI Height: %d", mPanelInfo.mMinROIHeight);
232                }
233                if(!strncmp(tokens[0], "roi_merge", strlen("roi_merge"))) {
234                    mPanelInfo.mNeedsROIMerge = atoi(tokens[1]);
235                    ALOGI("Needs ROI Merge: %d", mPanelInfo.mNeedsROIMerge);
236                }
237                if(!strncmp(tokens[0], "dyn_fps_en", strlen("dyn_fps_en"))) {
238                    mPanelInfo.mDynFpsSupported = atoi(tokens[1]);
239                    ALOGI("Dynamic Fps: %s", mPanelInfo.mDynFpsSupported ?
240                                            "Enabled" : "Disabled");
241                }
242                if(!strncmp(tokens[0], "min_fps", strlen("min_fps"))) {
243                    mPanelInfo.mMinFps = atoi(tokens[1]);
244                    ALOGI("Min Panel fps: %d", mPanelInfo.mMinFps);
245                }
246                if(!strncmp(tokens[0], "max_fps", strlen("max_fps"))) {
247                    mPanelInfo.mMaxFps = atoi(tokens[1]);
248                    ALOGI("Max Panel fps: %d", mPanelInfo.mMaxFps);
249                }
250            }
251        }
252        if((property_get("persist.hwc.pubypass", property, 0) > 0) &&
253            (!strncmp(property, "1", PROPERTY_VALUE_MAX ) ||
254            (!strncasecmp(property,"true", PROPERTY_VALUE_MAX )))) {
255                mPanelInfo.mPartialUpdateEnable = 0;
256                ALOGI("PartialUpdate disabled by property");
257        }
258        fclose(panelInfoNodeFP);
259        free(readLine);
260    } else {
261        ALOGE("Failed to open msm_fb_panel_info node");
262    }
263}
264
265// This function reads the sysfs node to read MDP capabilities
266// and parses and updates information accordingly.
267bool MDPVersion::updateSysFsInfo() {
268    FILE *sysfsFd;
269    size_t len = PAGE_SIZE;
270    ssize_t read;
271    char *line = NULL;
272    char sysfsPath[255];
273    memset(sysfsPath, 0, sizeof(sysfsPath));
274    snprintf(sysfsPath , sizeof(sysfsPath),
275            "/sys/class/graphics/fb0/mdp/caps");
276    char property[PROPERTY_VALUE_MAX];
277    bool enableMacroTile = false;
278
279    if((property_get("persist.hwc.macro_tile_enable", property, NULL) > 0) &&
280       (!strncmp(property, "1", PROPERTY_VALUE_MAX ) ||
281        (!strncasecmp(property,"true", PROPERTY_VALUE_MAX )))) {
282        enableMacroTile = true;
283    }
284
285    sysfsFd = fopen(sysfsPath, "rb");
286
287    if (sysfsFd == NULL) {
288        ALOGE("%s: sysFsFile file '%s' not found",
289                __FUNCTION__, sysfsPath);
290        return false;
291    } else {
292        line = (char *) malloc(len);
293        while((read = getline(&line, &len, sysfsFd)) != -1) {
294            int index=0;
295            char *tokens[10];
296            memset(tokens, 0, sizeof(tokens));
297
298            // parse the line and update information accordingly
299            if(!tokenizeParams(line, TOKEN_PARAMS_DELIM, tokens, &index)) {
300                if(!strncmp(tokens[0], "hw_rev", strlen("hw_rev"))) {
301                    mMdpRev = atoi(tokens[1]);
302                }
303                else if(!strncmp(tokens[0], "rgb_pipes", strlen("rgb_pipes"))) {
304                    mRGBPipes = (uint8_t)atoi(tokens[1]);
305                }
306                else if(!strncmp(tokens[0], "vig_pipes", strlen("vig_pipes"))) {
307                    mVGPipes = (uint8_t)atoi(tokens[1]);
308                }
309                else if(!strncmp(tokens[0], "dma_pipes", strlen("dma_pipes"))) {
310                    mDMAPipes = (uint8_t)atoi(tokens[1]);
311                }
312                else if(!strncmp(tokens[0], "blending_stages",
313                                strlen("blending_stages"))) {
314                    mBlendStages = (uint8_t)atoi(tokens[1]);
315                }
316                else if(!strncmp(tokens[0], "max_downscale_ratio",
317                                strlen("max_downscale_ratio"))) {
318                    mMDPDownscale = atoi(tokens[1]);
319                }
320                else if(!strncmp(tokens[0], "max_upscale_ratio",
321                                strlen("max_upscale_ratio"))) {
322                    mMDPUpscale = atoi(tokens[1]);
323                } else if(!strncmp(tokens[0], "max_bandwidth_low",
324                        strlen("max_bandwidth_low"))) {
325                    mLowBw = atol(tokens[1]);
326                } else if(!strncmp(tokens[0], "max_bandwidth_high",
327                        strlen("max_bandwidth_high"))) {
328                    mHighBw = atol(tokens[1]);
329                } else if(!strncmp(tokens[0], "max_mixer_width",
330                        strlen("max_mixer_width"))) {
331                    mMaxMixerWidth = atoi(tokens[1]);
332                } else if(!strncmp(tokens[0], "max_pipe_width",
333                        strlen("max_pipe_width"))) {
334                    mMaxPipeWidth = atoi(tokens[1]);
335                } else if(!strncmp(tokens[0], "features", strlen("features"))) {
336                    for(int i=1; i<index;i++) {
337                        if(!strncmp(tokens[i], "bwc", strlen("bwc"))) {
338                           mFeatures |= MDP_BWC_EN;
339                        } else if(!strncmp(tokens[i], "decimation",
340                                    strlen("decimation"))) {
341                           mFeatures |= MDP_DECIMATION_EN;
342                        } else if(!strncmp(tokens[i], "tile_format",
343                                    strlen("tile_format"))) {
344                           if(enableMacroTile)
345                               mMacroTileEnabled = true;
346                        } else if(!strncmp(tokens[i], "src_split",
347                                    strlen("src_split"))) {
348                            mSourceSplit = true;
349                        } else if(!strncmp(tokens[i], "non_scalar_rgb",
350                                    strlen("non_scalar_rgb"))) {
351                            mRGBHasNoScalar = true;
352                        } else if(!strncmp(tokens[i], "rotator_downscale",
353                                    strlen("rotator_downscale"))) {
354                            mRotDownscale = true;
355                        }
356                    }
357                }
358            }
359        }
360        free(line);
361        fclose(sysfsFd);
362    }
363
364    if(mMDPVersion >= qdutils::MDP_V4_2 and mMDPVersion < qdutils::MDSS_V5) {
365        mRotDownscale = true;
366    }
367
368    if(mSourceSplit) {
369        memset(sysfsPath, 0, sizeof(sysfsPath));
370        snprintf(sysfsPath , sizeof(sysfsPath),
371                "/sys/class/graphics/fb0/msm_fb_src_split_info");
372
373        sysfsFd = fopen(sysfsPath, "rb");
374        if (sysfsFd == NULL) {
375            ALOGE("%s: Opening file %s failed with error %s", __FUNCTION__,
376                    sysfsPath, strerror(errno));
377            return false;
378        } else {
379            line = (char *) malloc(len);
380            if((read = getline(&line, &len, sysfsFd)) != -1) {
381                if(!strncmp(line, "src_split_always",
382                        strlen("src_split_always"))) {
383                    mSourceSplitAlways = true;
384                }
385            }
386            free(line);
387            fclose(sysfsFd);
388        }
389    }
390
391    ALOGD_IF(DEBUG, "%s: mMDPVersion: %d mMdpRev: %x mRGBPipes:%d,"
392                    "mVGPipes:%d", __FUNCTION__, mMDPVersion, mMdpRev,
393                    mRGBPipes, mVGPipes);
394    ALOGD_IF(DEBUG, "%s:mDMAPipes:%d \t mMDPDownscale:%d, mFeatures:%d",
395                     __FUNCTION__,  mDMAPipes, mMDPDownscale, mFeatures);
396    ALOGD_IF(DEBUG, "%s:mLowBw: %lu mHighBw: %lu", __FUNCTION__,  mLowBw,
397            mHighBw);
398
399    return true;
400}
401
402// This function reads the sysfs node to read MDP capabilities
403// and parses and updates information accordingly.
404bool MDPVersion::updateSplitInfo() {
405    if(mMDPVersion >= MDSS_V5) {
406        char split[64] = {0};
407        FILE* fp = fopen("/sys/class/graphics/fb0/msm_fb_split", "r");
408        if(fp){
409            //Format "left right" space as delimiter
410            if(fread(split, sizeof(char), 64, fp)) {
411                split[sizeof(split) - 1] = '\0';
412                mSplit.mLeft = atoi(split);
413                ALOGI_IF(mSplit.mLeft, "Left Split=%d", mSplit.mLeft);
414                char *rght = strpbrk(split, " ");
415                if(rght)
416                    mSplit.mRight = atoi(rght + 1);
417                ALOGI_IF(mSplit.mRight, "Right Split=%d", mSplit.mRight);
418            }
419        } else {
420            ALOGE("Failed to open mdss_fb_split node");
421            return false;
422        }
423        if(fp)
424            fclose(fp);
425    }
426    return true;
427}
428
429
430bool MDPVersion::hasMinCropWidthLimitation() const {
431    return mMdpRev <= MDSS_MDP_HW_REV_102;
432}
433
434bool MDPVersion::supportsDecimation() {
435    return mFeatures & MDP_DECIMATION_EN;
436}
437
438uint32_t MDPVersion::getMaxMDPDownscale() {
439    return mMDPDownscale;
440}
441
442uint32_t MDPVersion::getMaxMDPUpscale() {
443    return mMDPUpscale;
444}
445
446bool MDPVersion::supportsBWC() {
447    // BWC - Bandwidth Compression
448    return (mFeatures & MDP_BWC_EN);
449}
450
451bool MDPVersion::supportsMacroTile() {
452    // MACRO TILE support
453    return mMacroTileEnabled;
454}
455
456bool MDPVersion::isSrcSplit() const {
457    return mSourceSplit;
458}
459
460bool MDPVersion::isSrcSplitAlways() const {
461    return mSourceSplitAlways;
462}
463
464bool MDPVersion::isRGBScalarSupported() const {
465    return (!mRGBHasNoScalar);
466}
467
468bool MDPVersion::is8x26() {
469    return (mMdpRev >= MDSS_MDP_HW_REV_101 and
470            mMdpRev < MDSS_MDP_HW_REV_102);
471}
472
473bool MDPVersion::is8x74v2() {
474    return (mMdpRev >= MDSS_MDP_HW_REV_102 and
475            mMdpRev < MDSS_MDP_HW_REV_103);
476}
477
478bool MDPVersion::is8084() {
479    return (mMdpRev >= MDSS_MDP_HW_REV_103 and
480            mMdpRev < MDSS_MDP_HW_REV_104);
481}
482
483bool MDPVersion::is8092() {
484    return (mMdpRev >= MDSS_MDP_HW_REV_200 and
485            mMdpRev < MDSS_MDP_HW_REV_206);
486}
487
488bool MDPVersion::is8994() {
489    return ((mMdpRev >= MDSS_MDP_HW_REV_105 and
490            mMdpRev < MDSS_MDP_HW_REV_106) or
491            (mMdpRev >= MDSS_MDP_HW_REV_109 and
492            mMdpRev < MDSS_MDP_HW_REV_110));
493}
494
495bool MDPVersion::is8x16() {
496    return (mMdpRev >= MDSS_MDP_HW_REV_106 and
497            mMdpRev < MDSS_MDP_HW_REV_107);
498}
499
500bool MDPVersion::is8x39() {
501    return (mMdpRev >= MDSS_MDP_HW_REV_108 and
502            mMdpRev < MDSS_MDP_HW_REV_109);
503}
504
505
506}; //namespace qdutils
507
508