mdp_version.cpp revision 26ca824f5a1e6adb8038a103c27139c163bb0660 
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
35ANDROID_SINGLETON_STATIC_INSTANCE(qdutils::MDPVersion);
36namespace 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_108
65#define MDSS_MDP_HW_REV_108 0x10080000 //8x39 & 8x36
66#endif
67#ifndef MDSS_MDP_HW_REV_109
68#define MDSS_MDP_HW_REV_109 0x10090000 //Next version
69#endif
70#ifndef MDSS_MDP_HW_REV_200
71#define MDSS_MDP_HW_REV_200 0x20000000 //8092
72#endif
73#ifndef MDSS_MDP_HW_REV_206
74#define MDSS_MDP_HW_REV_206 0x20060000 //Future
75#endif
76
77MDPVersion::MDPVersion()
78{
79    mMDPVersion = MDSS_V5;
80    mMdpRev = 0;
81    mRGBPipes = 0;
82    mVGPipes = 0;
83    mDMAPipes = 0;
84    mFeatures = 0;
85    mMDPUpscale = 0;
86    mMDPDownscale = 0;
87    mMacroTileEnabled = false;
88    mLowBw = 0;
89    mHighBw = 0;
90    mSourceSplit = false;
91    mRGBHasNoScalar = false;
92
93    updatePanelInfo();
94
95    if(!updateSysFsInfo()) {
96        ALOGE("Unable to read display sysfs node");
97    }
98    if (mMdpRev == MDP_V3_0_4){
99        mMDPVersion = MDP_V3_0_4;
100    }
101
102    mHasOverlay = false;
103    if((mMDPVersion >= MDP_V4_0) ||
104       (mMDPVersion == MDP_V_UNKNOWN) ||
105       (mMDPVersion == MDP_V3_0_4))
106        mHasOverlay = true;
107    if(!updateSplitInfo()) {
108        ALOGE("Unable to read display split node");
109    }
110}
111
112MDPVersion::~MDPVersion() {
113    close(mFd);
114}
115
116int MDPVersion::tokenizeParams(char *inputParams, const char *delim,
117                                char* tokenStr[], int *idx) {
118    char *tmp_token = NULL;
119    char *temp_ptr;
120    int index = 0;
121    if (!inputParams) {
122        return -1;
123    }
124    tmp_token = strtok_r(inputParams, delim, &temp_ptr);
125    while (tmp_token != NULL) {
126        tokenStr[index++] = tmp_token;
127        tmp_token = strtok_r(NULL, " ", &temp_ptr);
128    }
129    *idx = index;
130    return 0;
131}
132// This function reads the sysfs node to read the primary panel type
133// and updates information accordingly
134void  MDPVersion::updatePanelInfo() {
135    FILE *displayDeviceFP = NULL;
136    FILE *panelInfoNodeFP = NULL;
137    const int MAX_FRAME_BUFFER_NAME_SIZE = 128;
138    char fbType[MAX_FRAME_BUFFER_NAME_SIZE];
139    char panelInfo[MAX_FRAME_BUFFER_NAME_SIZE];
140    const char *strCmdPanel = "mipi dsi cmd panel";
141    const char *strVideoPanel = "mipi dsi video panel";
142    const char *strLVDSPanel = "lvds panel";
143    const char *strEDPPanel = "edp panel";
144
145    displayDeviceFP = fopen("/sys/class/graphics/fb0/msm_fb_type", "r");
146    if(displayDeviceFP){
147        fread(fbType, sizeof(char), MAX_FRAME_BUFFER_NAME_SIZE,
148                displayDeviceFP);
149        if(strncmp(fbType, strCmdPanel, strlen(strCmdPanel)) == 0) {
150            mPanelInfo.mType = MIPI_CMD_PANEL;
151        }
152        else if(strncmp(fbType, strVideoPanel, strlen(strVideoPanel)) == 0) {
153            mPanelInfo.mType = MIPI_VIDEO_PANEL;
154        }
155        else if(strncmp(fbType, strLVDSPanel, strlen(strLVDSPanel)) == 0) {
156            mPanelInfo.mType = LVDS_PANEL;
157        }
158        else if(strncmp(fbType, strEDPPanel, strlen(strEDPPanel)) == 0) {
159            mPanelInfo.mType = EDP_PANEL;
160        }
161        fclose(displayDeviceFP);
162    } else {
163        ALOGE("Unable to read Primary Panel Information");
164    }
165
166    panelInfoNodeFP = fopen("/sys/class/graphics/fb0/msm_fb_panel_info", "r");
167    if(panelInfoNodeFP){
168        size_t len = PAGE_SIZE;
169        ssize_t read;
170        char *readLine = (char *) malloc (len);
171        while((read = getline((char **)&readLine, &len,
172                              panelInfoNodeFP)) != -1) {
173            int token_ct=0;
174            char *tokens[10];
175            memset(tokens, 0, sizeof(tokens));
176
177            if(!tokenizeParams(readLine, TOKEN_PARAMS_DELIM, tokens,
178                               &token_ct)) {
179                if(!strncmp(tokens[0], "pu_en", strlen("pu_en"))) {
180                    mPanelInfo.mPartialUpdateEnable = atoi(tokens[1]);
181                    ALOGI("PartialUpdate status: %s",
182                          mPanelInfo.mPartialUpdateEnable? "Enabled" :
183                          "Disabled");
184                }
185                if(!strncmp(tokens[0], "xstart", strlen("xstart"))) {
186                    mPanelInfo.mLeftAlign = atoi(tokens[1]);
187                    ALOGI("Left Align: %d", mPanelInfo.mLeftAlign);
188                }
189                if(!strncmp(tokens[0], "walign", strlen("walign"))) {
190                    mPanelInfo.mWidthAlign = atoi(tokens[1]);
191                    ALOGI("Width Align: %d", mPanelInfo.mWidthAlign);
192                }
193                if(!strncmp(tokens[0], "ystart", strlen("ystart"))) {
194                    mPanelInfo.mTopAlign = atoi(tokens[1]);
195                    ALOGI("Top Align: %d", mPanelInfo.mTopAlign);
196                }
197                if(!strncmp(tokens[0], "halign", strlen("halign"))) {
198                    mPanelInfo.mHeightAlign = atoi(tokens[1]);
199                    ALOGI("Height Align: %d", mPanelInfo.mHeightAlign);
200                }
201                if(!strncmp(tokens[0], "min_w", strlen("min_w"))) {
202                    mPanelInfo.mMinROIWidth = atoi(tokens[1]);
203                    ALOGI("Min ROI Width: %d", mPanelInfo.mMinROIWidth);
204                }
205                if(!strncmp(tokens[0], "min_h", strlen("min_h"))) {
206                    mPanelInfo.mMinROIHeight = atoi(tokens[1]);
207                    ALOGI("Min ROI Height: %d", mPanelInfo.mMinROIHeight);
208                }
209            }
210        }
211        fclose(panelInfoNodeFP);
212    } else {
213        ALOGE("Failed to open msm_fb_panel_info node");
214    }
215}
216
217// This function reads the sysfs node to read MDP capabilities
218// and parses and updates information accordingly.
219bool MDPVersion::updateSysFsInfo() {
220    FILE *sysfsFd;
221    size_t len = PAGE_SIZE;
222    ssize_t read;
223    char *line = NULL;
224    char sysfsPath[255];
225    memset(sysfsPath, 0, sizeof(sysfsPath));
226    snprintf(sysfsPath , sizeof(sysfsPath),
227            "/sys/class/graphics/fb0/mdp/caps");
228    char property[PROPERTY_VALUE_MAX];
229    bool enableMacroTile = false;
230
231    if((property_get("persist.hwc.macro_tile_enable", property, NULL) > 0) &&
232       (!strncmp(property, "1", PROPERTY_VALUE_MAX ) ||
233        (!strncasecmp(property,"true", PROPERTY_VALUE_MAX )))) {
234        enableMacroTile = true;
235    }
236
237    sysfsFd = fopen(sysfsPath, "rb");
238
239    if (sysfsFd == NULL) {
240        ALOGE("%s: sysFsFile file '%s' not found",
241                __FUNCTION__, sysfsPath);
242        return false;
243    } else {
244        line = (char *) malloc(len);
245        while((read = getline(&line, &len, sysfsFd)) != -1) {
246            int index=0;
247            char *tokens[10];
248            memset(tokens, 0, sizeof(tokens));
249
250            // parse the line and update information accordingly
251            if(!tokenizeParams(line, TOKEN_PARAMS_DELIM, tokens, &index)) {
252                if(!strncmp(tokens[0], "hw_rev", strlen("hw_rev"))) {
253                    mMdpRev = atoi(tokens[1]);
254                }
255                else if(!strncmp(tokens[0], "rgb_pipes", strlen("rgb_pipes"))) {
256                    mRGBPipes = (uint8_t)atoi(tokens[1]);
257                }
258                else if(!strncmp(tokens[0], "vig_pipes", strlen("vig_pipes"))) {
259                    mVGPipes = (uint8_t)atoi(tokens[1]);
260                }
261                else if(!strncmp(tokens[0], "dma_pipes", strlen("dma_pipes"))) {
262                    mDMAPipes = (uint8_t)atoi(tokens[1]);
263                }
264                else if(!strncmp(tokens[0], "max_downscale_ratio",
265                                strlen("max_downscale_ratio"))) {
266                    mMDPDownscale = atoi(tokens[1]);
267                }
268                else if(!strncmp(tokens[0], "max_upscale_ratio",
269                                strlen("max_upscale_ratio"))) {
270                    mMDPUpscale = atoi(tokens[1]);
271                } else if(!strncmp(tokens[0], "max_bandwidth_low",
272                        strlen("max_bandwidth_low"))) {
273                    mLowBw = atol(tokens[1]);
274                } else if(!strncmp(tokens[0], "max_bandwidth_high",
275                        strlen("max_bandwidth_high"))) {
276                    mHighBw = atol(tokens[1]);
277                } else if(!strncmp(tokens[0], "features", strlen("features"))) {
278                    for(int i=1; i<index;i++) {
279                        if(!strncmp(tokens[i], "bwc", strlen("bwc"))) {
280                           mFeatures |= MDP_BWC_EN;
281                        }
282                        else if(!strncmp(tokens[i], "decimation",
283                                    strlen("decimation"))) {
284                           mFeatures |= MDP_DECIMATION_EN;
285                        }
286                        else if(!strncmp(tokens[i], "tile_format",
287                                    strlen("tile_format"))) {
288                           if(enableMacroTile)
289                               mMacroTileEnabled = true;
290                        } else if(!strncmp(tokens[i], "src_split",
291                                    strlen("src_split"))) {
292                            mSourceSplit = true;
293                        }
294                        else if(!strncmp(tokens[i], "non_scalar_rgb",
295                                    strlen("non_scalar_rgb"))) {
296                            mRGBHasNoScalar = true;
297                        }
298                    }
299                }
300            }
301        }
302        free(line);
303        fclose(sysfsFd);
304    }
305    ALOGD_IF(DEBUG, "%s: mMDPVersion: %d mMdpRev: %x mRGBPipes:%d,"
306                    "mVGPipes:%d", __FUNCTION__, mMDPVersion, mMdpRev,
307                    mRGBPipes, mVGPipes);
308    ALOGD_IF(DEBUG, "%s:mDMAPipes:%d \t mMDPDownscale:%d, mFeatures:%d",
309                     __FUNCTION__,  mDMAPipes, mMDPDownscale, mFeatures);
310    ALOGD_IF(DEBUG, "%s:mLowBw: %lu mHighBw: %lu", __FUNCTION__,  mLowBw,
311            mHighBw);
312
313    return true;
314}
315
316// This function reads the sysfs node to read MDP capabilities
317// and parses and updates information accordingly.
318bool MDPVersion::updateSplitInfo() {
319    if(mMDPVersion >= MDSS_V5) {
320        char split[64] = {0};
321        FILE* fp = fopen("/sys/class/graphics/fb0/msm_fb_split", "r");
322        if(fp){
323            //Format "left right" space as delimiter
324            if(fread(split, sizeof(char), 64, fp)) {
325                split[sizeof(split) - 1] = '\0';
326                mSplit.mLeft = atoi(split);
327                ALOGI_IF(mSplit.mLeft, "Left Split=%d", mSplit.mLeft);
328                char *rght = strpbrk(split, " ");
329                if(rght)
330                    mSplit.mRight = atoi(rght + 1);
331                ALOGI_IF(mSplit.mRight, "Right Split=%d", mSplit.mRight);
332            }
333        } else {
334            ALOGE("Failed to open mdss_fb_split node");
335            return false;
336        }
337        if(fp)
338            fclose(fp);
339    }
340    return true;
341}
342
343
344bool MDPVersion::supportsDecimation() {
345    return mFeatures & MDP_DECIMATION_EN;
346}
347
348uint32_t MDPVersion::getMaxMDPDownscale() {
349    return mMDPDownscale;
350}
351
352uint32_t MDPVersion::getMaxMDPUpscale() {
353    return mMDPUpscale;
354}
355
356bool MDPVersion::supportsBWC() {
357    // BWC - Bandwidth Compression
358    return (mFeatures & MDP_BWC_EN);
359}
360
361bool MDPVersion::supportsMacroTile() {
362    // MACRO TILE support
363    return mMacroTileEnabled;
364}
365
366bool MDPVersion::isSrcSplit() const {
367    return mSourceSplit;
368}
369
370bool MDPVersion::isRGBScalarSupported() const {
371    return (!mRGBHasNoScalar);
372}
373
374bool MDPVersion::is8x26() {
375    return (mMdpRev >= MDSS_MDP_HW_REV_101 and
376            mMdpRev < MDSS_MDP_HW_REV_102);
377}
378
379bool MDPVersion::is8x74v2() {
380    return (mMdpRev >= MDSS_MDP_HW_REV_102 and
381            mMdpRev < MDSS_MDP_HW_REV_103);
382}
383
384bool MDPVersion::is8084() {
385    return (mMdpRev >= MDSS_MDP_HW_REV_103 and
386            mMdpRev < MDSS_MDP_HW_REV_104);
387}
388
389bool MDPVersion::is8092() {
390    return (mMdpRev >= MDSS_MDP_HW_REV_200 and
391            mMdpRev < MDSS_MDP_HW_REV_206);
392}
393
394bool MDPVersion::is8x16() {
395    return (mMdpRev >= MDSS_MDP_HW_REV_106 and
396            mMdpRev < MDSS_MDP_HW_REV_107);
397}
398
399bool MDPVersion::is8x39() {
400    return (mMdpRev >= MDSS_MDP_HW_REV_108 and
401            mMdpRev < MDSS_MDP_HW_REV_109);
402}
403
404
405}; //namespace qdutils
406
407