mdp_version.cpp revision 3319ed056d7d62134f66c2cd5d062d027ccb908a 
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_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
71MDPVersion::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    mRGBHasNoScalar = false;
86
87    updatePanelInfo();
88
89    if(!updateSysFsInfo()) {
90        ALOGE("Unable to read display sysfs node");
91    }
92    if (mMdpRev == MDP_V3_0_4){
93        mMDPVersion = MDP_V3_0_4;
94    }
95
96    mHasOverlay = false;
97    if((mMDPVersion >= MDP_V4_0) ||
98       (mMDPVersion == MDP_V_UNKNOWN) ||
99       (mMDPVersion == MDP_V3_0_4))
100        mHasOverlay = true;
101    if(!updateSplitInfo()) {
102        ALOGE("Unable to read display split node");
103    }
104}
105
106MDPVersion::~MDPVersion() {
107    close(mFd);
108}
109
110int MDPVersion::tokenizeParams(char *inputParams, const char *delim,
111                                char* tokenStr[], int *idx) {
112    char *tmp_token = NULL;
113    char *temp_ptr;
114    int index = 0;
115    if (!inputParams) {
116        return -1;
117    }
118    tmp_token = strtok_r(inputParams, delim, &temp_ptr);
119    while (tmp_token != NULL) {
120        tokenStr[index++] = tmp_token;
121        tmp_token = strtok_r(NULL, " ", &temp_ptr);
122    }
123    *idx = index;
124    return 0;
125}
126// This function reads the sysfs node to read the primary panel type
127// and updates information accordingly
128void  MDPVersion::updatePanelInfo() {
129    FILE *displayDeviceFP = NULL;
130    FILE *panelInfoNodeFP = NULL;
131    const int MAX_FRAME_BUFFER_NAME_SIZE = 128;
132    char fbType[MAX_FRAME_BUFFER_NAME_SIZE];
133    char panelInfo[MAX_FRAME_BUFFER_NAME_SIZE];
134    const char *strCmdPanel = "mipi dsi cmd panel";
135    const char *strVideoPanel = "mipi dsi video panel";
136    const char *strLVDSPanel = "lvds panel";
137    const char *strEDPPanel = "edp panel";
138
139    displayDeviceFP = fopen("/sys/class/graphics/fb0/msm_fb_type", "r");
140    if(displayDeviceFP){
141        fread(fbType, sizeof(char), MAX_FRAME_BUFFER_NAME_SIZE,
142                displayDeviceFP);
143        if(strncmp(fbType, strCmdPanel, strlen(strCmdPanel)) == 0) {
144            mPanelInfo.mType = MIPI_CMD_PANEL;
145        }
146        else if(strncmp(fbType, strVideoPanel, strlen(strVideoPanel)) == 0) {
147            mPanelInfo.mType = MIPI_VIDEO_PANEL;
148        }
149        else if(strncmp(fbType, strLVDSPanel, strlen(strLVDSPanel)) == 0) {
150            mPanelInfo.mType = LVDS_PANEL;
151        }
152        else if(strncmp(fbType, strEDPPanel, strlen(strEDPPanel)) == 0) {
153            mPanelInfo.mType = EDP_PANEL;
154        }
155        fclose(displayDeviceFP);
156    } else {
157        ALOGE("Unable to read Primary Panel Information");
158    }
159
160    panelInfoNodeFP = fopen("/sys/class/graphics/fb0/msm_fb_panel_info", "r");
161    if(panelInfoNodeFP){
162        size_t len = PAGE_SIZE;
163        ssize_t read;
164        char *readLine = (char *) malloc (len);
165        while((read = getline((char **)&readLine, &len,
166                              panelInfoNodeFP)) != -1) {
167            int token_ct=0;
168            char *tokens[10];
169            memset(tokens, 0, sizeof(tokens));
170
171            if(!tokenizeParams(readLine, TOKEN_PARAMS_DELIM, tokens,
172                               &token_ct)) {
173                if(!strncmp(tokens[0], "pu_en", strlen("pu_en"))) {
174                    mPanelInfo.mPartialUpdateEnable = atoi(tokens[1]);
175                    ALOGI("PartialUpdate status: %s",
176                          mPanelInfo.mPartialUpdateEnable? "Enabled" :
177                          "Disabled");
178                }
179                if(!strncmp(tokens[0], "xstart", strlen("xstart"))) {
180                    mPanelInfo.mLeftAlign = atoi(tokens[1]);
181                    ALOGI("Left Align: %d", mPanelInfo.mLeftAlign);
182                }
183                if(!strncmp(tokens[0], "walign", strlen("walign"))) {
184                    mPanelInfo.mWidthAlign = atoi(tokens[1]);
185                    ALOGI("Width Align: %d", mPanelInfo.mWidthAlign);
186                }
187                if(!strncmp(tokens[0], "ystart", strlen("ystart"))) {
188                    mPanelInfo.mTopAlign = atoi(tokens[1]);
189                    ALOGI("Top Align: %d", mPanelInfo.mTopAlign);
190                }
191                if(!strncmp(tokens[0], "halign", strlen("halign"))) {
192                    mPanelInfo.mHeightAlign = atoi(tokens[1]);
193                    ALOGI("Height Align: %d", mPanelInfo.mHeightAlign);
194                }
195                if(!strncmp(tokens[0], "min_w", strlen("min_w"))) {
196                    mPanelInfo.mMinROIWidth = atoi(tokens[1]);
197                    ALOGI("Min ROI Width: %d", mPanelInfo.mMinROIWidth);
198                }
199                if(!strncmp(tokens[0], "min_h", strlen("min_h"))) {
200                    mPanelInfo.mMinROIHeight = atoi(tokens[1]);
201                    ALOGI("Min ROI Height: %d", mPanelInfo.mMinROIHeight);
202                }
203            }
204        }
205        fclose(panelInfoNodeFP);
206    } else {
207        ALOGE("Failed to open msm_fb_panel_info node");
208    }
209}
210
211// This function reads the sysfs node to read MDP capabilities
212// and parses and updates information accordingly.
213bool MDPVersion::updateSysFsInfo() {
214    FILE *sysfsFd;
215    size_t len = PAGE_SIZE;
216    ssize_t read;
217    char *line = NULL;
218    char sysfsPath[255];
219    memset(sysfsPath, 0, sizeof(sysfsPath));
220    snprintf(sysfsPath , sizeof(sysfsPath),
221            "/sys/class/graphics/fb0/mdp/caps");
222    char property[PROPERTY_VALUE_MAX];
223    bool enableMacroTile = false;
224
225    if((property_get("persist.hwc.macro_tile_enable", property, NULL) > 0) &&
226       (!strncmp(property, "1", PROPERTY_VALUE_MAX ) ||
227        (!strncasecmp(property,"true", PROPERTY_VALUE_MAX )))) {
228        enableMacroTile = true;
229    }
230
231    sysfsFd = fopen(sysfsPath, "rb");
232
233    if (sysfsFd == NULL) {
234        ALOGE("%s: sysFsFile file '%s' not found",
235                __FUNCTION__, sysfsPath);
236        return false;
237    } else {
238        line = (char *) malloc(len);
239        while((read = getline(&line, &len, sysfsFd)) != -1) {
240            int index=0;
241            char *tokens[10];
242            memset(tokens, 0, sizeof(tokens));
243
244            // parse the line and update information accordingly
245            if(!tokenizeParams(line, TOKEN_PARAMS_DELIM, tokens, &index)) {
246                if(!strncmp(tokens[0], "hw_rev", strlen("hw_rev"))) {
247                    mMdpRev = atoi(tokens[1]);
248                }
249                else if(!strncmp(tokens[0], "rgb_pipes", strlen("rgb_pipes"))) {
250                    mRGBPipes = (uint8_t)atoi(tokens[1]);
251                }
252                else if(!strncmp(tokens[0], "vig_pipes", strlen("vig_pipes"))) {
253                    mVGPipes = (uint8_t)atoi(tokens[1]);
254                }
255                else if(!strncmp(tokens[0], "dma_pipes", strlen("dma_pipes"))) {
256                    mDMAPipes = (uint8_t)atoi(tokens[1]);
257                }
258                else if(!strncmp(tokens[0], "max_downscale_ratio",
259                                strlen("max_downscale_ratio"))) {
260                    mMDPDownscale = atoi(tokens[1]);
261                }
262                else if(!strncmp(tokens[0], "max_upscale_ratio",
263                                strlen("max_upscale_ratio"))) {
264                    mMDPUpscale = atoi(tokens[1]);
265                } else if(!strncmp(tokens[0], "max_bandwidth_low",
266                        strlen("max_bandwidth_low"))) {
267                    mLowBw = atol(tokens[1]);
268                } else if(!strncmp(tokens[0], "max_bandwidth_high",
269                        strlen("max_bandwidth_high"))) {
270                    mHighBw = atol(tokens[1]);
271                } else if(!strncmp(tokens[0], "features", strlen("features"))) {
272                    for(int i=1; i<index;i++) {
273                        if(!strncmp(tokens[i], "bwc", strlen("bwc"))) {
274                           mFeatures |= MDP_BWC_EN;
275                        }
276                        else if(!strncmp(tokens[i], "decimation",
277                                    strlen("decimation"))) {
278                           mFeatures |= MDP_DECIMATION_EN;
279                        }
280                        else if(!strncmp(tokens[i], "tile_format",
281                                    strlen("tile_format"))) {
282                           if(enableMacroTile)
283                               mMacroTileEnabled = true;
284                        } else if(!strncmp(tokens[i], "src_split",
285                                    strlen("src_split"))) {
286                            mSourceSplit = true;
287                        }
288                        else if(!strncmp(tokens[i], "non_scalar_rgb",
289                                    strlen("non_scalar_rgb"))) {
290                            mRGBHasNoScalar = true;
291                        }
292                    }
293                }
294            }
295        }
296        free(line);
297        fclose(sysfsFd);
298    }
299    ALOGD_IF(DEBUG, "%s: mMDPVersion: %d mMdpRev: %x mRGBPipes:%d,"
300                    "mVGPipes:%d", __FUNCTION__, mMDPVersion, mMdpRev,
301                    mRGBPipes, mVGPipes);
302    ALOGD_IF(DEBUG, "%s:mDMAPipes:%d \t mMDPDownscale:%d, mFeatures:%d",
303                     __FUNCTION__,  mDMAPipes, mMDPDownscale, mFeatures);
304    ALOGD_IF(DEBUG, "%s:mLowBw: %lu mHighBw: %lu", __FUNCTION__,  mLowBw,
305            mHighBw);
306
307    return true;
308}
309
310// This function reads the sysfs node to read MDP capabilities
311// and parses and updates information accordingly.
312bool MDPVersion::updateSplitInfo() {
313    if(mMDPVersion >= MDSS_V5) {
314        char split[64] = {0};
315        FILE* fp = fopen("/sys/class/graphics/fb0/msm_fb_split", "r");
316        if(fp){
317            //Format "left right" space as delimiter
318            if(fread(split, sizeof(char), 64, fp)) {
319                split[sizeof(split) - 1] = '\0';
320                mSplit.mLeft = atoi(split);
321                ALOGI_IF(mSplit.mLeft, "Left Split=%d", mSplit.mLeft);
322                char *rght = strpbrk(split, " ");
323                if(rght)
324                    mSplit.mRight = atoi(rght + 1);
325                ALOGI_IF(mSplit.mRight, "Right Split=%d", mSplit.mRight);
326            }
327        } else {
328            ALOGE("Failed to open mdss_fb_split node");
329            return false;
330        }
331        if(fp)
332            fclose(fp);
333    }
334    return true;
335}
336
337
338bool MDPVersion::supportsDecimation() {
339    return mFeatures & MDP_DECIMATION_EN;
340}
341
342uint32_t MDPVersion::getMaxMDPDownscale() {
343    return mMDPDownscale;
344}
345
346uint32_t MDPVersion::getMaxMDPUpscale() {
347    return mMDPUpscale;
348}
349
350bool MDPVersion::supportsBWC() {
351    // BWC - Bandwidth Compression
352    return (mFeatures & MDP_BWC_EN);
353}
354
355bool MDPVersion::supportsMacroTile() {
356    // MACRO TILE support
357    return mMacroTileEnabled;
358}
359
360bool MDPVersion::isSrcSplit() const {
361    return mSourceSplit;
362}
363
364bool MDPVersion::isRGBScalarSupported() const {
365    return (!mRGBHasNoScalar);
366}
367
368bool MDPVersion::is8x26() {
369    return (mMdpRev >= MDSS_MDP_HW_REV_101 and
370            mMdpRev < MDSS_MDP_HW_REV_102);
371}
372
373bool MDPVersion::is8x74v2() {
374    return (mMdpRev >= MDSS_MDP_HW_REV_102 and
375            mMdpRev < MDSS_MDP_HW_REV_103);
376}
377
378bool MDPVersion::is8084() {
379    return (mMdpRev >= MDSS_MDP_HW_REV_103 and
380            mMdpRev < MDSS_MDP_HW_REV_104);
381}
382
383bool MDPVersion::is8092() {
384    return (mMdpRev >= MDSS_MDP_HW_REV_200 and
385            mMdpRev < MDSS_MDP_HW_REV_206);
386}
387
388bool MDPVersion::is8x16() {
389    return (mMdpRev >= MDSS_MDP_HW_REV_106 and
390            mMdpRev < MDSS_MDP_HW_REV_107);
391}
392
393}; //namespace qdutils
394
395