mdp_version.cpp revision a85d9f9f2d5cd0555b409b1fc974a9ecec3fee56 
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_REV
41enum mdp_rev {
42    MDSS_MDP_HW_REV_100 = 0x10000000, //8974 v1
43    MDSS_MDP_HW_REV_101 = 0x10010000, //8x26
44    MDSS_MDP_HW_REV_102 = 0x10020000, //8974 v2
45    MDSS_MDP_HW_REV_103 = 0x10030000, //8084
46    MDSS_MDP_HW_REV_104 = 0x10040000, //Next version
47    MDSS_MDP_HW_REV_105 = 0x10050000, //Next version
48    MDSS_MDP_HW_REV_106 = 0x10060000, //8x16
49    MDSS_MDP_HW_REV_200 = 0x20000000, //8092
50    MDSS_MDP_HW_REV_206 = 0x20060000, //Future
51};
52#else
53enum mdp_rev {
54    MDSS_MDP_HW_REV_104 = 0x10040000, //Next version
55    MDSS_MDP_HW_REV_206 = 0x20060000, //Future
56    MDSS_MDP_HW_REV_107 = 0x10070000, //Next version
57};
58#endif
59
60MDPVersion::MDPVersion()
61{
62    mMDPVersion = MDSS_V5;
63    mMdpRev = 0;
64    mRGBPipes = 0;
65    mVGPipes = 0;
66    mDMAPipes = 0;
67    mFeatures = 0;
68    mMDPUpscale = 0;
69    mMDPDownscale = 0;
70    mMacroTileEnabled = false;
71    mLowBw = 0;
72    mHighBw = 0;
73    mSourceSplit = false;
74    mRGBHasNoScalar = false;
75
76    updatePanelInfo();
77
78    if(!updateSysFsInfo()) {
79        ALOGE("Unable to read display sysfs node");
80    }
81    if (mMdpRev == MDP_V3_0_4){
82        mMDPVersion = MDP_V3_0_4;
83    }
84
85    mHasOverlay = false;
86    if((mMDPVersion >= MDP_V4_0) ||
87       (mMDPVersion == MDP_V_UNKNOWN) ||
88       (mMDPVersion == MDP_V3_0_4))
89        mHasOverlay = true;
90    if(!updateSplitInfo()) {
91        ALOGE("Unable to read display split node");
92    }
93}
94
95MDPVersion::~MDPVersion() {
96    close(mFd);
97}
98
99int MDPVersion::tokenizeParams(char *inputParams, const char *delim,
100                                char* tokenStr[], int *idx) {
101    char *tmp_token = NULL;
102    char *temp_ptr;
103    int index = 0;
104    if (!inputParams) {
105        return -1;
106    }
107    tmp_token = strtok_r(inputParams, delim, &temp_ptr);
108    while (tmp_token != NULL) {
109        tokenStr[index++] = tmp_token;
110        tmp_token = strtok_r(NULL, " ", &temp_ptr);
111    }
112    *idx = index;
113    return 0;
114}
115// This function reads the sysfs node to read the primary panel type
116// and updates information accordingly
117void  MDPVersion::updatePanelInfo() {
118    FILE *displayDeviceFP = NULL;
119    FILE *panelInfoNodeFP = NULL;
120    const int MAX_FRAME_BUFFER_NAME_SIZE = 128;
121    char fbType[MAX_FRAME_BUFFER_NAME_SIZE];
122    char panelInfo[MAX_FRAME_BUFFER_NAME_SIZE];
123    const char *strCmdPanel = "mipi dsi cmd panel";
124    const char *strVideoPanel = "mipi dsi video panel";
125    const char *strLVDSPanel = "lvds panel";
126    const char *strEDPPanel = "edp panel";
127
128    displayDeviceFP = fopen("/sys/class/graphics/fb0/msm_fb_type", "r");
129    if(displayDeviceFP){
130        fread(fbType, sizeof(char), MAX_FRAME_BUFFER_NAME_SIZE,
131                displayDeviceFP);
132        if(strncmp(fbType, strCmdPanel, strlen(strCmdPanel)) == 0) {
133            mPanelInfo.mType = MIPI_CMD_PANEL;
134        }
135        else if(strncmp(fbType, strVideoPanel, strlen(strVideoPanel)) == 0) {
136            mPanelInfo.mType = MIPI_VIDEO_PANEL;
137        }
138        else if(strncmp(fbType, strLVDSPanel, strlen(strLVDSPanel)) == 0) {
139            mPanelInfo.mType = LVDS_PANEL;
140        }
141        else if(strncmp(fbType, strEDPPanel, strlen(strEDPPanel)) == 0) {
142            mPanelInfo.mType = EDP_PANEL;
143        }
144        fclose(displayDeviceFP);
145    } else {
146        ALOGE("Unable to read Primary Panel Information");
147    }
148
149    panelInfoNodeFP = fopen("/sys/class/graphics/fb0/msm_fb_panel_info", "r");
150    if(panelInfoNodeFP){
151        size_t len = PAGE_SIZE;
152        ssize_t read;
153        char *readLine = (char *) malloc (len);
154        while((read = getline((char **)&readLine, &len,
155                              panelInfoNodeFP)) != -1) {
156            int token_ct=0;
157            char *tokens[10];
158            memset(tokens, 0, sizeof(tokens));
159
160            if(!tokenizeParams(readLine, TOKEN_PARAMS_DELIM, tokens,
161                               &token_ct)) {
162                if(!strncmp(tokens[0], "pu_en", strlen("pu_en"))) {
163                    mPanelInfo.mPartialUpdateEnable = atoi(tokens[1]);
164                    ALOGI("PartialUpdate status: %s",
165                          mPanelInfo.mPartialUpdateEnable? "Enabled" :
166                          "Disabled");
167                }
168                if(!strncmp(tokens[0], "xstart", strlen("xstart"))) {
169                    mPanelInfo.mLeftAlign = atoi(tokens[1]);
170                    ALOGI("Left Align: %d", mPanelInfo.mLeftAlign);
171                }
172                if(!strncmp(tokens[0], "walign", strlen("walign"))) {
173                    mPanelInfo.mWidthAlign = atoi(tokens[1]);
174                    ALOGI("Width Align: %d", mPanelInfo.mWidthAlign);
175                }
176                if(!strncmp(tokens[0], "ystart", strlen("ystart"))) {
177                    mPanelInfo.mTopAlign = atoi(tokens[1]);
178                    ALOGI("Top Align: %d", mPanelInfo.mTopAlign);
179                }
180                if(!strncmp(tokens[0], "halign", strlen("halign"))) {
181                    mPanelInfo.mHeightAlign = atoi(tokens[1]);
182                    ALOGI("Height Align: %d", mPanelInfo.mHeightAlign);
183                }
184                if(!strncmp(tokens[0], "min_w", strlen("min_w"))) {
185                    mPanelInfo.mMinROIWidth = atoi(tokens[1]);
186                    ALOGI("Min ROI Width: %d", mPanelInfo.mMinROIWidth);
187                }
188                if(!strncmp(tokens[0], "min_h", strlen("min_h"))) {
189                    mPanelInfo.mMinROIHeight = atoi(tokens[1]);
190                    ALOGI("Min ROI Height: %d", mPanelInfo.mMinROIHeight);
191                }
192            }
193        }
194        fclose(panelInfoNodeFP);
195    } else {
196        ALOGE("Failed to open msm_fb_panel_info node");
197    }
198}
199
200// This function reads the sysfs node to read MDP capabilities
201// and parses and updates information accordingly.
202bool MDPVersion::updateSysFsInfo() {
203    FILE *sysfsFd;
204    size_t len = PAGE_SIZE;
205    ssize_t read;
206    char *line = NULL;
207    char sysfsPath[255];
208    memset(sysfsPath, 0, sizeof(sysfsPath));
209    snprintf(sysfsPath , sizeof(sysfsPath),
210            "/sys/class/graphics/fb0/mdp/caps");
211    char property[PROPERTY_VALUE_MAX];
212    bool enableMacroTile = false;
213
214    if((property_get("persist.hwc.macro_tile_enable", property, NULL) > 0) &&
215       (!strncmp(property, "1", PROPERTY_VALUE_MAX ) ||
216        (!strncasecmp(property,"true", PROPERTY_VALUE_MAX )))) {
217        enableMacroTile = true;
218    }
219
220    sysfsFd = fopen(sysfsPath, "rb");
221
222    if (sysfsFd == NULL) {
223        ALOGE("%s: sysFsFile file '%s' not found",
224                __FUNCTION__, sysfsPath);
225        return false;
226    } else {
227        line = (char *) malloc(len);
228        while((read = getline(&line, &len, sysfsFd)) != -1) {
229            int index=0;
230            char *tokens[10];
231            memset(tokens, 0, sizeof(tokens));
232
233            // parse the line and update information accordingly
234            if(!tokenizeParams(line, TOKEN_PARAMS_DELIM, tokens, &index)) {
235                if(!strncmp(tokens[0], "hw_rev", strlen("hw_rev"))) {
236                    mMdpRev = atoi(tokens[1]);
237                }
238                else if(!strncmp(tokens[0], "rgb_pipes", strlen("rgb_pipes"))) {
239                    mRGBPipes = (uint8_t)atoi(tokens[1]);
240                }
241                else if(!strncmp(tokens[0], "vig_pipes", strlen("vig_pipes"))) {
242                    mVGPipes = (uint8_t)atoi(tokens[1]);
243                }
244                else if(!strncmp(tokens[0], "dma_pipes", strlen("dma_pipes"))) {
245                    mDMAPipes = (uint8_t)atoi(tokens[1]);
246                }
247                else if(!strncmp(tokens[0], "max_downscale_ratio",
248                                strlen("max_downscale_ratio"))) {
249                    mMDPDownscale = atoi(tokens[1]);
250                }
251                else if(!strncmp(tokens[0], "max_upscale_ratio",
252                                strlen("max_upscale_ratio"))) {
253                    mMDPUpscale = atoi(tokens[1]);
254                } else if(!strncmp(tokens[0], "max_bandwidth_low",
255                        strlen("max_bandwidth_low"))) {
256                    mLowBw = atol(tokens[1]);
257                } else if(!strncmp(tokens[0], "max_bandwidth_high",
258                        strlen("max_bandwidth_high"))) {
259                    mHighBw = atol(tokens[1]);
260                } else if(!strncmp(tokens[0], "features", strlen("features"))) {
261                    for(int i=1; i<index;i++) {
262                        if(!strncmp(tokens[i], "bwc", strlen("bwc"))) {
263                           mFeatures |= MDP_BWC_EN;
264                        }
265                        else if(!strncmp(tokens[i], "decimation",
266                                    strlen("decimation"))) {
267                           mFeatures |= MDP_DECIMATION_EN;
268                        }
269                        else if(!strncmp(tokens[i], "tile_format",
270                                    strlen("tile_format"))) {
271                           if(enableMacroTile)
272                               mMacroTileEnabled = true;
273                        } else if(!strncmp(tokens[i], "src_split",
274                                    strlen("src_split"))) {
275                            mSourceSplit = true;
276                        }
277                        else if(!strncmp(tokens[i], "non_scalar_rgb",
278                                    strlen("non_scalar_rgb"))) {
279                            mRGBHasNoScalar = true;
280                        }
281                    }
282                }
283            }
284        }
285        free(line);
286        fclose(sysfsFd);
287    }
288    ALOGD_IF(DEBUG, "%s: mMDPVersion: %d mMdpRev: %x mRGBPipes:%d,"
289                    "mVGPipes:%d", __FUNCTION__, mMDPVersion, mMdpRev,
290                    mRGBPipes, mVGPipes);
291    ALOGD_IF(DEBUG, "%s:mDMAPipes:%d \t mMDPDownscale:%d, mFeatures:%d",
292                     __FUNCTION__,  mDMAPipes, mMDPDownscale, mFeatures);
293    ALOGD_IF(DEBUG, "%s:mLowBw: %lu mHighBw: %lu", __FUNCTION__,  mLowBw,
294            mHighBw);
295
296    return true;
297}
298
299// This function reads the sysfs node to read MDP capabilities
300// and parses and updates information accordingly.
301bool MDPVersion::updateSplitInfo() {
302    if(mMDPVersion >= MDSS_V5) {
303        char split[64] = {0};
304        FILE* fp = fopen("/sys/class/graphics/fb0/msm_fb_split", "r");
305        if(fp){
306            //Format "left right" space as delimiter
307            if(fread(split, sizeof(char), 64, fp)) {
308                split[sizeof(split) - 1] = '\0';
309                mSplit.mLeft = atoi(split);
310                ALOGI_IF(mSplit.mLeft, "Left Split=%d", mSplit.mLeft);
311                char *rght = strpbrk(split, " ");
312                if(rght)
313                    mSplit.mRight = atoi(rght + 1);
314                ALOGI_IF(mSplit.mRight, "Right Split=%d", mSplit.mRight);
315            }
316        } else {
317            ALOGE("Failed to open mdss_fb_split node");
318            return false;
319        }
320        if(fp)
321            fclose(fp);
322    }
323    return true;
324}
325
326
327bool MDPVersion::supportsDecimation() {
328    return mFeatures & MDP_DECIMATION_EN;
329}
330
331uint32_t MDPVersion::getMaxMDPDownscale() {
332    return mMDPDownscale;
333}
334
335uint32_t MDPVersion::getMaxMDPUpscale() {
336    return mMDPUpscale;
337}
338
339bool MDPVersion::supportsBWC() {
340    // BWC - Bandwidth Compression
341    return (mFeatures & MDP_BWC_EN);
342}
343
344bool MDPVersion::supportsMacroTile() {
345    // MACRO TILE support
346    return mMacroTileEnabled;
347}
348
349bool MDPVersion::isSrcSplit() const {
350    return mSourceSplit;
351}
352
353bool MDPVersion::isRGBScalarSupported() const {
354    return (!mRGBHasNoScalar);
355}
356
357bool MDPVersion::is8x26() {
358    return (mMdpRev >= MDSS_MDP_HW_REV_101 and
359            mMdpRev < MDSS_MDP_HW_REV_102);
360}
361
362bool MDPVersion::is8x74v2() {
363    return (mMdpRev >= MDSS_MDP_HW_REV_102 and
364            mMdpRev < MDSS_MDP_HW_REV_103);
365}
366
367bool MDPVersion::is8084() {
368    return (mMdpRev >= MDSS_MDP_HW_REV_103 and
369            mMdpRev < MDSS_MDP_HW_REV_104);
370}
371
372bool MDPVersion::is8092() {
373    return (mMdpRev >= MDSS_MDP_HW_REV_200 and
374            mMdpRev < MDSS_MDP_HW_REV_206);
375}
376
377bool MDPVersion::is8x16() {
378    return (mMdpRev >= MDSS_MDP_HW_REV_106 and
379            mMdpRev < MDSS_MDP_HW_REV_107);
380}
381
382}; //namespace qdutils
383
384