1/*
2* Copyright (c) 2011-2013, 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
30#include "overlay.h"
31#include "pipes/overlayGenPipe.h"
32#include "mdp_version.h"
33#include "qdMetaData.h"
34
35#define PIPE_DEBUG 0
36
37namespace overlay {
38using namespace utils;
39
40Overlay::Overlay() {
41    PipeBook::NUM_PIPES = qdutils::MDPVersion::getInstance().getTotalPipes();
42    for(int i = 0; i < PipeBook::NUM_PIPES; i++) {
43        mPipeBook[i].init();
44    }
45
46    mDumpStr[0] = '\0';
47}
48
49Overlay::~Overlay() {
50    for(int i = 0; i < PipeBook::NUM_PIPES; i++) {
51        mPipeBook[i].destroy();
52    }
53}
54
55void Overlay::configBegin() {
56    for(int i = 0; i < PipeBook::NUM_PIPES; i++) {
57        //Mark as available for this round.
58        PipeBook::resetUse(i);
59        PipeBook::resetAllocation(i);
60    }
61    sForceSetBitmap = 0;
62    mDumpStr[0] = '\0';
63}
64
65void Overlay::configDone() {
66    for(int i = 0; i < PipeBook::NUM_PIPES; i++) {
67        if(PipeBook::isNotUsed(i)) {
68            //Forces UNSET on pipes, flushes rotator memory and session, closes
69            //fds
70            if(mPipeBook[i].valid()) {
71                char str[32];
72                sprintf(str, "Unset=%s dpy=%d mix=%d; ",
73                        PipeBook::getDestStr((eDest)i),
74                        mPipeBook[i].mDisplay, mPipeBook[i].mMixer);
75#if PIPE_DEBUG
76                strncat(mDumpStr, str, strlen(str));
77#endif
78            }
79            mPipeBook[i].destroy();
80        }
81    }
82    dump();
83    PipeBook::save();
84}
85
86eDest Overlay::nextPipe(eMdpPipeType type, int dpy, int mixer) {
87    eDest dest = OV_INVALID;
88
89    for(int i = 0; i < PipeBook::NUM_PIPES; i++) {
90        if( (type == OV_MDP_PIPE_ANY || //Pipe type match
91             type == PipeBook::getPipeType((eDest)i)) &&
92            (mPipeBook[i].mDisplay == DPY_UNUSED || //Free or same display
93             mPipeBook[i].mDisplay == dpy) &&
94            (mPipeBook[i].mMixer == MIXER_UNUSED || //Free or same mixer
95             mPipeBook[i].mMixer == mixer) &&
96            PipeBook::isNotAllocated(i) && //Free pipe
97            !(sDMAMode == DMA_BLOCK_MODE && //DMA pipe in Line mode
98               PipeBook::getPipeType((eDest)i) == OV_MDP_PIPE_DMA)) {
99            dest = (eDest)i;
100            PipeBook::setAllocation(i);
101            break;
102        }
103    }
104
105    if(dest != OV_INVALID) {
106        int index = (int)dest;
107        mPipeBook[index].mDisplay = dpy;
108        mPipeBook[index].mMixer = mixer;
109        if(not mPipeBook[index].valid()) {
110            mPipeBook[index].mPipe = new GenericPipe(dpy);
111            char str[32];
112            snprintf(str, 32, "Set=%s dpy=%d mix=%d; ",
113                     PipeBook::getDestStr(dest), dpy, mixer);
114#if PIPE_DEBUG
115            strncat(mDumpStr, str, strlen(str));
116#endif
117        }
118    } else {
119        ALOGD_IF(PIPE_DEBUG, "Pipe unavailable type=%d display=%d mixer=%d",
120                (int)type, dpy, mixer);
121    }
122
123    return dest;
124}
125
126bool Overlay::isPipeTypeAttached(eMdpPipeType type) {
127    for(int i = 0; i < PipeBook::NUM_PIPES; i++) {
128        if(type == PipeBook::getPipeType((eDest)i) &&
129                mPipeBook[i].mDisplay != DPY_UNUSED) {
130            return true;
131        }
132    }
133    return false;
134}
135
136bool Overlay::commit(utils::eDest dest) {
137    bool ret = false;
138    int index = (int)dest;
139    validate(index);
140
141    if(mPipeBook[index].mPipe->commit()) {
142        ret = true;
143        PipeBook::setUse((int)dest);
144        if(sForceSetBitmap & (1 << mPipeBook[index].mDisplay)) {
145            mPipeBook[index].mPipe->forceSet();
146        }
147    } else {
148        int dpy = mPipeBook[index].mDisplay;
149        for(int i = 0; i < PipeBook::NUM_PIPES; i++)
150            if (mPipeBook[i].mDisplay == dpy) {
151                PipeBook::resetAllocation(i);
152                PipeBook::resetUse(i);
153                if(mPipeBook[i].valid()) {
154                    mPipeBook[i].mPipe->forceSet();
155                }
156            }
157    }
158    return ret;
159}
160
161bool Overlay::queueBuffer(int fd, uint32_t offset,
162        utils::eDest dest) {
163    int index = (int)dest;
164    bool ret = false;
165    validate(index);
166    //Queue only if commit() has succeeded (and the bit set)
167    if(PipeBook::isUsed((int)dest)) {
168        ret = mPipeBook[index].mPipe->queueBuffer(fd, offset);
169    }
170    return ret;
171}
172
173void Overlay::setCrop(const utils::Dim& d,
174        utils::eDest dest) {
175    int index = (int)dest;
176    validate(index);
177    mPipeBook[index].mPipe->setCrop(d);
178}
179
180void Overlay::setPosition(const utils::Dim& d,
181        utils::eDest dest) {
182    int index = (int)dest;
183    validate(index);
184    mPipeBook[index].mPipe->setPosition(d);
185}
186
187void Overlay::setTransform(const int orient,
188        utils::eDest dest) {
189    int index = (int)dest;
190    validate(index);
191
192    utils::eTransform transform =
193            static_cast<utils::eTransform>(orient);
194    mPipeBook[index].mPipe->setTransform(transform);
195
196}
197
198void Overlay::setSource(const utils::PipeArgs args,
199        utils::eDest dest) {
200    int index = (int)dest;
201    validate(index);
202
203    PipeArgs newArgs(args);
204    if(PipeBook::getPipeType(dest) == OV_MDP_PIPE_VG) {
205        setMdpFlags(newArgs.mdpFlags, OV_MDP_PIPE_SHARE);
206    } else {
207        clearMdpFlags(newArgs.mdpFlags, OV_MDP_PIPE_SHARE);
208    }
209
210    if(PipeBook::getPipeType(dest) == OV_MDP_PIPE_DMA) {
211        setMdpFlags(newArgs.mdpFlags, OV_MDP_PIPE_FORCE_DMA);
212    } else {
213        clearMdpFlags(newArgs.mdpFlags, OV_MDP_PIPE_FORCE_DMA);
214    }
215
216    mPipeBook[index].mPipe->setSource(newArgs);
217}
218
219void Overlay::setVisualParams(const MetaData_t& metadata, utils::eDest dest) {
220    int index = (int)dest;
221    validate(index);
222    mPipeBook[index].mPipe->setVisualParams(metadata);
223}
224
225Overlay* Overlay::getInstance() {
226    if(sInstance == NULL) {
227        sInstance = new Overlay();
228    }
229    return sInstance;
230}
231
232// Clears any VG pipes allocated to the fb devices
233// Generates a LUT for pipe types.
234int Overlay::initOverlay() {
235    int mdpVersion = qdutils::MDPVersion::getInstance().getMDPVersion();
236    int numPipesXType[OV_MDP_PIPE_ANY] = {0};
237    numPipesXType[OV_MDP_PIPE_RGB] =
238            qdutils::MDPVersion::getInstance().getRGBPipes();
239    numPipesXType[OV_MDP_PIPE_VG] =
240            qdutils::MDPVersion::getInstance().getVGPipes();
241    numPipesXType[OV_MDP_PIPE_DMA] =
242            qdutils::MDPVersion::getInstance().getDMAPipes();
243
244    int index = 0;
245    for(int X = 0; X < (int)OV_MDP_PIPE_ANY; X++) { //iterate over types
246        for(int j = 0; j < numPipesXType[X]; j++) { //iterate over num
247            PipeBook::pipeTypeLUT[index] = (utils::eMdpPipeType)X;
248            index++;
249        }
250    }
251
252    if (mdpVersion < qdutils::MDSS_V5 && mdpVersion != qdutils::MDP_V3_0_4) {
253        msmfb_mixer_info_req  req;
254        mdp_mixer_info *minfo = NULL;
255        char name[64];
256        int fd = -1;
257        for(int i = 0; i < MAX_FB_DEVICES; i++) {
258            snprintf(name, 64, FB_DEVICE_TEMPLATE, i);
259            ALOGD("initoverlay:: opening the device:: %s", name);
260            fd = ::open(name, O_RDWR, 0);
261            if(fd < 0) {
262                ALOGE("cannot open framebuffer(%d)", i);
263                return -1;
264            }
265            //Get the mixer configuration */
266            req.mixer_num = i;
267            if (ioctl(fd, MSMFB_MIXER_INFO, &req) == -1) {
268                ALOGE("ERROR: MSMFB_MIXER_INFO ioctl failed");
269                close(fd);
270                return -1;
271            }
272            minfo = req.info;
273            for (int j = 0; j < req.cnt; j++) {
274                ALOGD("ndx=%d num=%d z_order=%d", minfo->pndx, minfo->pnum,
275                      minfo->z_order);
276                // clear any pipe connected to mixer including base pipe.
277                int index = minfo->pndx;
278                ALOGD("Unset overlay with index: %d at mixer %d", index, i);
279                if(ioctl(fd, MSMFB_OVERLAY_UNSET, &index) == -1) {
280                    ALOGE("ERROR: MSMFB_OVERLAY_UNSET failed");
281                    close(fd);
282                    return -1;
283                }
284                minfo++;
285            }
286            close(fd);
287            fd = -1;
288        }
289    }
290
291    FILE *displayDeviceFP = NULL;
292    const int MAX_FRAME_BUFFER_NAME_SIZE = 128;
293    char fbType[MAX_FRAME_BUFFER_NAME_SIZE];
294    char msmFbTypePath[MAX_FRAME_BUFFER_NAME_SIZE];
295    const char *strDtvPanel = "dtv panel";
296    const char *strWbPanel = "writeback panel";
297
298    for(int num = 1; num < MAX_FB_DEVICES; num++) {
299        snprintf (msmFbTypePath, sizeof(msmFbTypePath),
300                "/sys/class/graphics/fb%d/msm_fb_type", num);
301        displayDeviceFP = fopen(msmFbTypePath, "r");
302
303        if(displayDeviceFP){
304            fread(fbType, sizeof(char), MAX_FRAME_BUFFER_NAME_SIZE,
305                    displayDeviceFP);
306
307            if(strncmp(fbType, strDtvPanel, strlen(strDtvPanel)) == 0) {
308                sDpyFbMap[DPY_EXTERNAL] = num;
309            } else if(strncmp(fbType, strWbPanel, strlen(strWbPanel)) == 0) {
310                sDpyFbMap[DPY_WRITEBACK] = num;
311            }
312
313            fclose(displayDeviceFP);
314        }
315    }
316
317    return 0;
318}
319
320bool Overlay::displayCommit(const int& fd) {
321    //Commit
322    struct mdp_display_commit info;
323    memset(&info, 0, sizeof(struct mdp_display_commit));
324    info.flags = MDP_DISPLAY_COMMIT_OVERLAY;
325    if(!mdp_wrapper::displayCommit(fd, info)) {
326       ALOGE("%s: commit failed", __func__);
327       return false;
328    }
329    return true;
330}
331
332void Overlay::dump() const {
333#if PIPE_DEBUG
334    if(strlen(mDumpStr)) { //dump only on state change
335        ALOGD("%s\n", mDumpStr);
336    }
337#endif
338}
339
340void Overlay::getDump(char *buf, size_t len) {
341    int totalPipes = 0;
342    const char *str = "\nOverlay State\n\n";
343    strncat(buf, str, strlen(str));
344    for(int i = 0; i < PipeBook::NUM_PIPES; i++) {
345        if(mPipeBook[i].valid()) {
346            mPipeBook[i].mPipe->getDump(buf, len);
347            char str[64] = {'\0'};
348            snprintf(str, 64, "Display=%d\n\n", mPipeBook[i].mDisplay);
349            strncat(buf, str, strlen(str));
350            totalPipes++;
351        }
352    }
353    char str_pipes[64] = {'\0'};
354    snprintf(str_pipes, 64, "Pipes=%d\n\n", totalPipes);
355    strncat(buf, str_pipes, strlen(str_pipes));
356}
357
358void Overlay::clear(int dpy) {
359    for(int i = 0; i < PipeBook::NUM_PIPES; i++) {
360        if (mPipeBook[i].mDisplay == dpy) {
361            // Mark as available for this round
362            PipeBook::resetUse(i);
363            PipeBook::resetAllocation(i);
364            if(mPipeBook[i].valid()) {
365                mPipeBook[i].mPipe->forceSet();
366            }
367        }
368    }
369}
370
371void Overlay::PipeBook::init() {
372    mPipe = NULL;
373    mDisplay = DPY_UNUSED;
374    mMixer = MIXER_UNUSED;
375}
376
377void Overlay::PipeBook::destroy() {
378    if(mPipe) {
379        delete mPipe;
380        mPipe = NULL;
381    }
382    mDisplay = DPY_UNUSED;
383    mMixer = MIXER_UNUSED;
384}
385
386Overlay* Overlay::sInstance = 0;
387int Overlay::sDpyFbMap[DPY_MAX] = {0, -1, -1};
388int Overlay::sDMAMode = DMA_LINE_MODE;
389int Overlay::sForceSetBitmap = 0;
390int Overlay::PipeBook::NUM_PIPES = 0;
391int Overlay::PipeBook::sPipeUsageBitmap = 0;
392int Overlay::PipeBook::sLastUsageBitmap = 0;
393int Overlay::PipeBook::sAllocatedBitmap = 0;
394utils::eMdpPipeType Overlay::PipeBook::pipeTypeLUT[utils::OV_MAX] =
395    {utils::OV_MDP_PIPE_ANY};
396
397}; // namespace overlay
398