| /* | 
 |  * Copyright (C) 2010 The Android Open Source Project | 
 |  * Copyright (C) 2012-2014, The Linux Foundation. All rights reserved. | 
 |  * | 
 |  * Not a Contribution, Apache license notifications and license are retained | 
 |  * for attribution purposes only. | 
 |  * | 
 |  * Licensed under the Apache License, Version 2.0 (the "License"); | 
 |  * you may not use this file except in compliance with the License. | 
 |  * You may obtain a copy of the License at | 
 |  * | 
 |  *      http://www.apache.org/licenses/LICENSE-2.0 | 
 |  * | 
 |  * Unless required by applicable law or agreed to in writing, software | 
 |  * distributed under the License is distributed on an "AS IS" BASIS, | 
 |  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 
 |  * See the License for the specific language governing permissions and | 
 |  * limitations under the License. | 
 |  */ | 
 | #define ATRACE_TAG (ATRACE_TAG_GRAPHICS | ATRACE_TAG_HAL) | 
 | #include <fcntl.h> | 
 | #include <errno.h> | 
 |  | 
 | #include <cutils/log.h> | 
 | #include <cutils/atomic.h> | 
 | #include <EGL/egl.h> | 
 | #include <utils/Trace.h> | 
 | #include <sys/ioctl.h> | 
 | #include <overlay.h> | 
 | #include <overlayRotator.h> | 
 | #include <overlayWriteback.h> | 
 | #include <mdp_version.h> | 
 | #include "hwc_utils.h" | 
 | #include "hwc_fbupdate.h" | 
 | #include "hwc_mdpcomp.h" | 
 | #include "hwc_dump_layers.h" | 
 | #include "external.h" | 
 | #include "hwc_copybit.h" | 
 | #include "hwc_ad.h" | 
 | #include "profiler.h" | 
 | #include "hwc_virtual.h" | 
 |  | 
 | using namespace qhwc; | 
 | using namespace overlay; | 
 |  | 
 | #define VSYNC_DEBUG 0 | 
 | #define BLANK_DEBUG 1 | 
 |  | 
 | static int hwc_device_open(const struct hw_module_t* module, | 
 |                            const char* name, | 
 |                            struct hw_device_t** device); | 
 |  | 
 | static struct hw_module_methods_t hwc_module_methods = { | 
 |     open: hwc_device_open | 
 | }; | 
 |  | 
 | static void reset_panel(struct hwc_composer_device_1* dev); | 
 |  | 
 | hwc_module_t HAL_MODULE_INFO_SYM = { | 
 |     common: { | 
 |         tag: HARDWARE_MODULE_TAG, | 
 |         version_major: 2, | 
 |         version_minor: 0, | 
 |         id: HWC_HARDWARE_MODULE_ID, | 
 |         name: "Qualcomm Hardware Composer Module", | 
 |         author: "CodeAurora Forum", | 
 |         methods: &hwc_module_methods, | 
 |         dso: 0, | 
 |         reserved: {0}, | 
 |     } | 
 | }; | 
 |  | 
 | /* In case of non-hybrid WFD session, we are fooling SF by piggybacking on | 
 |  * HDMI display ID for virtual. This helper is needed to differentiate their | 
 |  * paths in HAL. | 
 |  * TODO: Not needed once we have WFD client working on top of Google API's */ | 
 |  | 
 | static int getDpyforExternalDisplay(hwc_context_t *ctx, int dpy) { | 
 |     if(dpy == HWC_DISPLAY_EXTERNAL && ctx->mVirtualonExtActive) | 
 |         return HWC_DISPLAY_VIRTUAL; | 
 |     return dpy; | 
 | } | 
 |  | 
 | /* | 
 |  * Save callback functions registered to HWC | 
 |  */ | 
 | static void hwc_registerProcs(struct hwc_composer_device_1* dev, | 
 |                               hwc_procs_t const* procs) | 
 | { | 
 |     ALOGI("%s", __FUNCTION__); | 
 |     hwc_context_t* ctx = (hwc_context_t*)(dev); | 
 |     if(!ctx) { | 
 |         ALOGE("%s: Invalid context", __FUNCTION__); | 
 |         return; | 
 |     } | 
 |     ctx->proc = procs; | 
 |  | 
 |     // Now that we have the functions needed, kick off | 
 |     // the uevent & vsync threads | 
 |     init_uevent_thread(ctx); | 
 |     init_vsync_thread(ctx); | 
 | } | 
 |  | 
 | static void setPaddingRound(hwc_context_t *ctx, int numDisplays, | 
 |                             hwc_display_contents_1_t** displays) { | 
 |     ctx->isPaddingRound = false; | 
 |     for(int i = 0; i < numDisplays; i++) { | 
 |         hwc_display_contents_1_t *list = displays[i]; | 
 |         if (LIKELY(list && list->numHwLayers > 0)) { | 
 |             if((ctx->mPrevHwLayerCount[i] == 1 or | 
 |                 ctx->mPrevHwLayerCount[i] == 0) and | 
 |                (list->numHwLayers > 1)) { | 
 |                 /* If the previous cycle for dpy 'i' has 0 AppLayers and the | 
 |                  * current cycle has atleast 1 AppLayer, padding round needs | 
 |                  * to be invoked in current cycle on all the active displays | 
 |                  * to free up the resources. | 
 |                  */ | 
 |                 ctx->isPaddingRound = true; | 
 |             } | 
 |             ctx->mPrevHwLayerCount[i] = (int)list->numHwLayers; | 
 |         } else { | 
 |             ctx->mPrevHwLayerCount[i] = 0; | 
 |         } | 
 |     } | 
 | } | 
 |  | 
 | /* Based on certain conditions, isPaddingRound will be set | 
 |  * to make this function self-contained */ | 
 | static void setDMAState(hwc_context_t *ctx, int numDisplays, | 
 |                         hwc_display_contents_1_t** displays) { | 
 |  | 
 |     if(ctx->mRotMgr->getNumActiveSessions() == 0) | 
 |         Overlay::setDMAMode(Overlay::DMA_LINE_MODE); | 
 |  | 
 |     for(int dpy = 0; dpy < numDisplays; dpy++) { | 
 |         hwc_display_contents_1_t *list = displays[dpy]; | 
 |         if (LIKELY(list && list->numHwLayers > 0)) { | 
 |             for(size_t layerIndex = 0; layerIndex < list->numHwLayers; | 
 |                                                   layerIndex++) { | 
 |                 if(list->hwLayers[layerIndex].compositionType != | 
 |                                             HWC_FRAMEBUFFER_TARGET) | 
 |                 { | 
 |                     hwc_layer_1_t const* layer = &list->hwLayers[layerIndex]; | 
 |                     private_handle_t *hnd = (private_handle_t *)layer->handle; | 
 |  | 
 |                     /* If a video layer requires rotation, set the DMA state | 
 |                      * to BLOCK_MODE */ | 
 |  | 
 |                     if (UNLIKELY(isYuvBuffer(hnd)) && canUseRotator(ctx, dpy) && | 
 |                         (layer->transform & HWC_TRANSFORM_ROT_90)) { | 
 |                         if(not ctx->mOverlay->isDMAMultiplexingSupported()) { | 
 |                             if(ctx->mOverlay->isPipeTypeAttached( | 
 |                                              overlay::utils::OV_MDP_PIPE_DMA)) | 
 |                                 ctx->isPaddingRound = true; | 
 |                         } | 
 |                         Overlay::setDMAMode(Overlay::DMA_BLOCK_MODE); | 
 |                     } | 
 |                 } | 
 |             } | 
 |             if(dpy) { | 
 |                 /* Uncomment the below code for testing purpose. | 
 |                    Assuming the orientation value is in terms of HAL_TRANSFORM, | 
 |                    this needs mapping to HAL, if its in different convention */ | 
 |  | 
 |                 /* char value[PROPERTY_VALUE_MAX]; | 
 |                    property_get("sys.ext_orientation", value, "0"); | 
 |                    ctx->mExtOrientation = atoi(value);*/ | 
 |  | 
 |                 if(ctx->mExtOrientation || ctx->mBufferMirrorMode) { | 
 |                     if(ctx->mOverlay->isPipeTypeAttached( | 
 |                                          overlay::utils::OV_MDP_PIPE_DMA)) { | 
 |                         ctx->isPaddingRound = true; | 
 |                     } | 
 |                     Overlay::setDMAMode(Overlay::DMA_BLOCK_MODE); | 
 |                 } | 
 |             } | 
 |         } | 
 |     } | 
 | } | 
 |  | 
 | static void setNumActiveDisplays(hwc_context_t *ctx, int numDisplays, | 
 |                             hwc_display_contents_1_t** displays) { | 
 |  | 
 |     ctx->numActiveDisplays = 0; | 
 |     for(int i = 0; i < numDisplays; i++) { | 
 |         hwc_display_contents_1_t *list = displays[i]; | 
 |         if (LIKELY(list && list->numHwLayers > 0)) { | 
 |             /* For display devices like SSD and screenrecord, we cannot | 
 |              * rely on isActive and connected attributes of dpyAttr to | 
 |              * determine if the displaydevice is active. Hence in case if | 
 |              * the layer-list is non-null and numHwLayers > 0, we assume | 
 |              * the display device to be active. | 
 |              */ | 
 |             ctx->numActiveDisplays += 1; | 
 |         } | 
 |     } | 
 | } | 
 |  | 
 | static void reset(hwc_context_t *ctx, int numDisplays, | 
 |                   hwc_display_contents_1_t** displays) { | 
 |  | 
 |  | 
 |     for(int i = 0; i < numDisplays; i++) { | 
 |         hwc_display_contents_1_t *list = displays[i]; | 
 |         // XXX:SurfaceFlinger no longer guarantees that this | 
 |         // value is reset on every prepare. However, for the layer | 
 |         // cache we need to reset it. | 
 |         // We can probably rethink that later on | 
 |         if (LIKELY(list && list->numHwLayers > 0)) { | 
 |             for(size_t j = 0; j < list->numHwLayers; j++) { | 
 |                 if(list->hwLayers[j].compositionType != HWC_FRAMEBUFFER_TARGET) | 
 |                     list->hwLayers[j].compositionType = HWC_FRAMEBUFFER; | 
 |             } | 
 |  | 
 |         } | 
 |  | 
 |         if(ctx->mFBUpdate[i]) | 
 |             ctx->mFBUpdate[i]->reset(); | 
 |         if(ctx->mCopyBit[i]) | 
 |             ctx->mCopyBit[i]->reset(); | 
 |         if(ctx->mLayerRotMap[i]) | 
 |             ctx->mLayerRotMap[i]->reset(); | 
 |     } | 
 |  | 
 |     ctx->mAD->reset(); | 
 |     MDPComp::reset(); | 
 |     if(ctx->mHWCVirtual) | 
 |         ctx->mHWCVirtual->destroy(ctx, numDisplays, displays); | 
 | } | 
 |  | 
 | static void scaleDisplayFrame(hwc_context_t *ctx, int dpy, | 
 |                             hwc_display_contents_1_t *list) { | 
 |     uint32_t origXres = ctx->dpyAttr[dpy].xres; | 
 |     uint32_t origYres = ctx->dpyAttr[dpy].yres; | 
 |     uint32_t newXres = ctx->dpyAttr[dpy].xres_new; | 
 |     uint32_t newYres = ctx->dpyAttr[dpy].yres_new; | 
 |     float xresRatio = (float)origXres / (float)newXres; | 
 |     float yresRatio = (float)origYres / (float)newYres; | 
 |     for (size_t i = 0; i < list->numHwLayers; i++) { | 
 |         hwc_layer_1_t *layer = &list->hwLayers[i]; | 
 |         hwc_rect_t& displayFrame = layer->displayFrame; | 
 |         hwc_rect_t sourceCrop = integerizeSourceCrop(layer->sourceCropf); | 
 |         uint32_t layerWidth = displayFrame.right - displayFrame.left; | 
 |         uint32_t layerHeight = displayFrame.bottom - displayFrame.top; | 
 |         displayFrame.left = (int)(xresRatio * (float)displayFrame.left); | 
 |         displayFrame.top = (int)(yresRatio * (float)displayFrame.top); | 
 |         displayFrame.right = (int)((float)displayFrame.left + | 
 |                                    (float)layerWidth * xresRatio); | 
 |         displayFrame.bottom = (int)((float)displayFrame.top + | 
 |                                     (float)layerHeight * yresRatio); | 
 |     } | 
 | } | 
 |  | 
 | static int hwc_prepare_primary(hwc_composer_device_1 *dev, | 
 |         hwc_display_contents_1_t *list) { | 
 |     ATRACE_CALL(); | 
 |     hwc_context_t* ctx = (hwc_context_t*)(dev); | 
 |     const int dpy = HWC_DISPLAY_PRIMARY; | 
 |     bool fbComp = false; | 
 |     if (LIKELY(list && list->numHwLayers > 1) && | 
 |             ctx->dpyAttr[dpy].isActive) { | 
 |  | 
 |         if (ctx->dpyAttr[dpy].customFBSize && | 
 |                 list->flags & HWC_GEOMETRY_CHANGED) | 
 |             scaleDisplayFrame(ctx, dpy, list); | 
 |  | 
 |         reset_layer_prop(ctx, dpy, (int)list->numHwLayers - 1); | 
 |         setListStats(ctx, list, dpy); | 
 |  | 
 |         fbComp = (ctx->mMDPComp[dpy]->prepare(ctx, list) < 0); | 
 |  | 
 |         if (fbComp) { | 
 |             const int fbZ = 0; | 
 |             if(not ctx->mFBUpdate[dpy]->prepareAndValidate(ctx, list, fbZ)) { | 
 |                 ctx->mOverlay->clear(dpy); | 
 |                 ctx->mLayerRotMap[dpy]->clear(); | 
 |             } | 
 |         } | 
 |  | 
 |         if (ctx->mMDP.version < qdutils::MDP_V4_0) { | 
 |             if(ctx->mCopyBit[dpy]) | 
 |                 ctx->mCopyBit[dpy]->prepare(ctx, list, dpy); | 
 |         } | 
 |         setGPUHint(ctx, list); | 
 |     } | 
 |     return 0; | 
 | } | 
 |  | 
 | static int hwc_prepare_external(hwc_composer_device_1 *dev, | 
 |         hwc_display_contents_1_t *list) { | 
 |     ATRACE_CALL(); | 
 |     hwc_context_t* ctx = (hwc_context_t*)(dev); | 
 |     const int dpy = HWC_DISPLAY_EXTERNAL; | 
 |  | 
 |     if (LIKELY(list && list->numHwLayers > 1) && | 
 |             ctx->dpyAttr[dpy].isActive && | 
 |             ctx->dpyAttr[dpy].connected) { | 
 |         reset_layer_prop(ctx, dpy, (int)list->numHwLayers - 1); | 
 |         if(!ctx->dpyAttr[dpy].isPause) { | 
 |             ctx->dpyAttr[dpy].isConfiguring = false; | 
 |             setListStats(ctx, list, dpy); | 
 |             if(ctx->mMDPComp[dpy]->prepare(ctx, list) < 0) { | 
 |                 const int fbZ = 0; | 
 |                 if(not ctx->mFBUpdate[dpy]->prepareAndValidate(ctx, list, fbZ)) | 
 |                 { | 
 |                     ctx->mOverlay->clear(dpy); | 
 |                     ctx->mLayerRotMap[dpy]->clear(); | 
 |                 } | 
 |             } | 
 |         } else { | 
 |             /* External Display is in Pause state. | 
 |              * Mark all application layers as OVERLAY so that | 
 |              * GPU will not compose. | 
 |              */ | 
 |             for(size_t i = 0 ;i < (size_t)(list->numHwLayers - 1); i++) { | 
 |                 hwc_layer_1_t *layer = &list->hwLayers[i]; | 
 |                 layer->compositionType = HWC_OVERLAY; | 
 |             } | 
 |         } | 
 |     } | 
 |     return 0; | 
 | } | 
 |  | 
 | static int hwc_prepare(hwc_composer_device_1 *dev, size_t numDisplays, | 
 |                        hwc_display_contents_1_t** displays) | 
 | { | 
 |     int ret = 0; | 
 |     hwc_context_t* ctx = (hwc_context_t*)(dev); | 
 |  | 
 |     if (ctx->mPanelResetStatus) { | 
 |         ALOGW("%s: panel is in bad state. reset the panel", __FUNCTION__); | 
 |         reset_panel(dev); | 
 |     } | 
 |  | 
 |     //Will be unlocked at the end of set | 
 |     ctx->mDrawLock.lock(); | 
 |     setPaddingRound(ctx,numDisplays,displays); | 
 |     setDMAState(ctx,numDisplays,displays); | 
 |     setNumActiveDisplays(ctx,numDisplays,displays); | 
 |     reset(ctx, (int)numDisplays, displays); | 
 |  | 
 |     ctx->mOverlay->configBegin(); | 
 |     ctx->mRotMgr->configBegin(); | 
 |     overlay::Writeback::configBegin(); | 
 |  | 
 |     for (int32_t i = ((int32_t)numDisplays-1); i >=0 ; i--) { | 
 |         hwc_display_contents_1_t *list = displays[i]; | 
 |         int dpy = getDpyforExternalDisplay(ctx, i); | 
 |         switch(dpy) { | 
 |             case HWC_DISPLAY_PRIMARY: | 
 |                 ret = hwc_prepare_primary(dev, list); | 
 |                 break; | 
 |             case HWC_DISPLAY_EXTERNAL: | 
 |                 ret = hwc_prepare_external(dev, list); | 
 |                 break; | 
 |             case HWC_DISPLAY_VIRTUAL: | 
 |                 if(ctx->mHWCVirtual) | 
 |                     ret = ctx->mHWCVirtual->prepare(dev, list); | 
 |                 break; | 
 |             default: | 
 |                 ret = -EINVAL; | 
 |         } | 
 |     } | 
 |  | 
 |     ctx->mOverlay->configDone(); | 
 |     ctx->mRotMgr->configDone(); | 
 |     overlay::Writeback::configDone(); | 
 |  | 
 |     return ret; | 
 | } | 
 |  | 
 | static int hwc_eventControl(struct hwc_composer_device_1* dev, int dpy, | 
 |                              int event, int enable) | 
 | { | 
 |     ATRACE_CALL(); | 
 |     int ret = 0; | 
 |     hwc_context_t* ctx = (hwc_context_t*)(dev); | 
 |     switch(event) { | 
 |         case HWC_EVENT_VSYNC: | 
 |             if (ctx->vstate.enable == enable) | 
 |                 break; | 
 |             ret = hwc_vsync_control(ctx, dpy, enable); | 
 |             if(ret == 0) | 
 |                 ctx->vstate.enable = !!enable; | 
 |             ALOGD_IF (VSYNC_DEBUG, "VSYNC state changed to %s", | 
 |                       (enable)?"ENABLED":"DISABLED"); | 
 |             break; | 
 | #ifdef QCOM_BSP | 
 |         case  HWC_EVENT_ORIENTATION: | 
 |             if(dpy == HWC_DISPLAY_PRIMARY) { | 
 |                 Locker::Autolock _l(ctx->mDrawLock); | 
 |                 // store the primary display orientation | 
 |                 ctx->deviceOrientation = enable; | 
 |             } | 
 |             break; | 
 | #endif | 
 |         default: | 
 |             ret = -EINVAL; | 
 |     } | 
 |     return ret; | 
 | } | 
 |  | 
 | static int hwc_blank(struct hwc_composer_device_1* dev, int dpy, int blank) | 
 | { | 
 |     ATRACE_CALL(); | 
 |     hwc_context_t* ctx = (hwc_context_t*)(dev); | 
 |  | 
 |     Locker::Autolock _l(ctx->mDrawLock); | 
 |     int ret = 0, value = 0; | 
 |  | 
 |     /* In case of non-hybrid WFD session, we are fooling SF by | 
 |      * piggybacking on HDMI display ID for virtual. | 
 |      * TODO: Not needed once we have WFD client working on top | 
 |      * of Google API's. | 
 |      */ | 
 |     dpy = getDpyforExternalDisplay(ctx,dpy); | 
 |  | 
 |     ALOGD_IF(BLANK_DEBUG, "%s: %s display: %d", __FUNCTION__, | 
 |           blank==1 ? "Blanking":"Unblanking", dpy); | 
 |     if(blank) { | 
 |         // free up all the overlay pipes in use | 
 |         // when we get a blank for either display | 
 |         // makes sure that all pipes are freed | 
 |         ctx->mOverlay->configBegin(); | 
 |         ctx->mOverlay->configDone(); | 
 |         ctx->mRotMgr->clear(); | 
 |         // If VDS is connected, do not clear WB object as it | 
 |         // will end up detaching IOMMU. This is required | 
 |         // to send black frame to WFD sink on power suspend. | 
 |         // Note: With this change, we keep the WriteBack object | 
 |         // alive on power suspend for AD use case. | 
 |     } | 
 |     switch(dpy) { | 
 |     case HWC_DISPLAY_PRIMARY: | 
 |         value = blank ? FB_BLANK_POWERDOWN : FB_BLANK_UNBLANK; | 
 |         if(ioctl(ctx->dpyAttr[dpy].fd, FBIOBLANK, value) < 0 ) { | 
 |             ALOGE("%s: Failed to handle blank event(%d) for Primary!!", | 
 |                   __FUNCTION__, blank ); | 
 |             return -1; | 
 |         } | 
 |  | 
 |         if(!blank) { | 
 |             // Enable HPD here, as during bootup unblank is called | 
 |             // when SF is completely initialized | 
 |             ctx->mExtDisplay->setHPD(1); | 
 |         } | 
 |  | 
 |         ctx->dpyAttr[dpy].isActive = !blank; | 
 |  | 
 |         if(ctx->mVirtualonExtActive) { | 
 |             /* if mVirtualonExtActive is true, display hal will | 
 |              * receive unblank calls for non-hybrid WFD solution | 
 |              * since we piggyback on HDMI. | 
 |              * TODO: Not needed once we have WFD client working on top | 
 |              of Google API's */ | 
 |             break; | 
 |         } | 
 |     case HWC_DISPLAY_VIRTUAL: | 
 |         /* There are two ways to reach this block of code. | 
 |  | 
 |          * Display hal has received unblank call on HWC_DISPLAY_EXTERNAL | 
 |          and ctx->mVirtualonExtActive is true. In this case, non-hybrid | 
 |          WFD is active. If so, getDpyforExternalDisplay will return dpy | 
 |          as HWC_DISPLAY_VIRTUAL. | 
 |  | 
 |          * Display hal has received unblank call on HWC_DISPLAY_PRIMARY | 
 |          and since SF is not aware of VIRTUAL DISPLAY being handle by HWC, | 
 |          it wont send blank / unblank events for it. We piggyback on | 
 |          PRIMARY DISPLAY events to release mdp pipes and | 
 |          activate/deactivate VIRTUAL DISPLAY. | 
 |  | 
 |          * TODO: This separate case statement is not needed once we have | 
 |          WFD client working on top of Google API's. | 
 |  | 
 |          */ | 
 |  | 
 |         if(ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].connected) { | 
 |             if(blank and (!ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].isPause)) { | 
 |                 int dpy = HWC_DISPLAY_VIRTUAL; | 
 |                 if(!Overlay::displayCommit(ctx->dpyAttr[dpy].fd)) { | 
 |                     ALOGE("%s: display commit fail for virtual!", __FUNCTION__); | 
 |                     ret = -1; | 
 |                 } | 
 |             } | 
 |             ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].isActive = !blank; | 
 |         } | 
 |         break; | 
 |     case HWC_DISPLAY_EXTERNAL: | 
 |         if(blank) { | 
 |             if(!Overlay::displayCommit(ctx->dpyAttr[dpy].fd)) { | 
 |                 ALOGE("%s: display commit fail for external!", __FUNCTION__); | 
 |                 ret = -1; | 
 |             } | 
 |         } | 
 |         ctx->dpyAttr[dpy].isActive = !blank; | 
 |         break; | 
 |     default: | 
 |         return -EINVAL; | 
 |     } | 
 |  | 
 |     ALOGD_IF(BLANK_DEBUG, "%s: Done %s display: %d", __FUNCTION__, | 
 |           blank ? "blanking":"unblanking", dpy); | 
 |     return ret; | 
 | } | 
 |  | 
 | static void reset_panel(struct hwc_composer_device_1* dev) | 
 | { | 
 |     int ret = 0; | 
 |     hwc_context_t* ctx = (hwc_context_t*)(dev); | 
 |  | 
 |     if (!ctx->dpyAttr[HWC_DISPLAY_PRIMARY].isActive) { | 
 |         ALOGD ("%s : Display OFF - Skip BLANK & UNBLANK", __FUNCTION__); | 
 |         ctx->mPanelResetStatus = false; | 
 |         return; | 
 |     } | 
 |  | 
 |     ALOGD("%s: calling BLANK DISPLAY", __FUNCTION__); | 
 |     ret = hwc_blank(dev, HWC_DISPLAY_PRIMARY, 1); | 
 |     if (ret < 0) { | 
 |         ALOGE("%s: FBIOBLANK failed to BLANK:  %s", __FUNCTION__, | 
 |                                                             strerror(errno)); | 
 |     } | 
 |  | 
 |     ALOGD("%s: calling UNBLANK DISPLAY and enabling vsync", __FUNCTION__); | 
 |     ret = hwc_blank(dev, HWC_DISPLAY_PRIMARY, 0); | 
 |     if (ret < 0) { | 
 |         ALOGE("%s: FBIOBLANK failed to UNBLANK : %s", __FUNCTION__, | 
 |                                                             strerror(errno)); | 
 |     } | 
 |     hwc_vsync_control(ctx, HWC_DISPLAY_PRIMARY, 1); | 
 |  | 
 |     ctx->mPanelResetStatus = false; | 
 | } | 
 |  | 
 |  | 
 | static int hwc_query(struct hwc_composer_device_1* dev, | 
 |                      int param, int* value) | 
 | { | 
 |     hwc_context_t* ctx = (hwc_context_t*)(dev); | 
 |     int supported = HWC_DISPLAY_PRIMARY_BIT; | 
 |  | 
 |     switch (param) { | 
 |     case HWC_BACKGROUND_LAYER_SUPPORTED: | 
 |         // Not supported for now | 
 |         value[0] = 0; | 
 |         break; | 
 |     case HWC_DISPLAY_TYPES_SUPPORTED: | 
 |         if(ctx->mMDP.hasOverlay) { | 
 |             supported |= HWC_DISPLAY_VIRTUAL_BIT; | 
 |             if(!(qdutils::MDPVersion::getInstance().is8x26() || | 
 |                         qdutils::MDPVersion::getInstance().is8x16() || | 
 |                         qdutils::MDPVersion::getInstance().is8x39())) | 
 |                 supported |= HWC_DISPLAY_EXTERNAL_BIT; | 
 |         } | 
 |         value[0] = supported; | 
 |         break; | 
 |     case HWC_FORMAT_RB_SWAP: | 
 |         value[0] = 1; | 
 |         break; | 
 |     case HWC_COLOR_FILL: | 
 |         value[0] = 1; | 
 |         break; | 
 |     default: | 
 |         return -EINVAL; | 
 |     } | 
 |     return 0; | 
 |  | 
 | } | 
 |  | 
 |  | 
 | static int hwc_set_primary(hwc_context_t *ctx, hwc_display_contents_1_t* list) { | 
 |     ATRACE_CALL(); | 
 |     int ret = 0; | 
 |     const int dpy = HWC_DISPLAY_PRIMARY; | 
 |     if (LIKELY(list) && ctx->dpyAttr[dpy].isActive) { | 
 |         size_t last = list->numHwLayers - 1; | 
 |         hwc_layer_1_t *fbLayer = &list->hwLayers[last]; | 
 |         int fd = -1; //FenceFD from the Copybit(valid in async mode) | 
 |         bool copybitDone = false; | 
 |  | 
 |         if (ctx->mCopyBit[dpy]) { | 
 |             if (ctx->mMDP.version < qdutils::MDP_V4_0) | 
 |                 copybitDone = ctx->mCopyBit[dpy]->draw(ctx, list, dpy, &fd); | 
 |             else | 
 |                 fd = ctx->mMDPComp[dpy]->drawOverlap(ctx, list); | 
 |         } | 
 |  | 
 |         if(list->numHwLayers > 1) | 
 |             hwc_sync(ctx, list, dpy, fd); | 
 |  | 
 |         // Dump the layers for primary | 
 |         if(ctx->mHwcDebug[dpy]) | 
 |             ctx->mHwcDebug[dpy]->dumpLayers(list); | 
 |  | 
 |         if (!ctx->mMDPComp[dpy]->draw(ctx, list)) { | 
 |             ALOGE("%s: MDPComp draw failed", __FUNCTION__); | 
 |             ret = -1; | 
 |         } | 
 |  | 
 |         //TODO We dont check for SKIP flag on this layer because we need PAN | 
 |         //always. Last layer is always FB | 
 |         private_handle_t *hnd = (private_handle_t *)fbLayer->handle; | 
 |         if(copybitDone && ctx->mMDP.version >= qdutils::MDP_V4_0) { | 
 |             hnd = ctx->mCopyBit[dpy]->getCurrentRenderBuffer(); | 
 |         } | 
 |  | 
 |         if(isAbcInUse(ctx) == true) { | 
 |             int index = ctx->listStats[dpy].renderBufIndexforABC; | 
 |             hwc_layer_1_t *tempLayer = &list->hwLayers[index]; | 
 |             hnd = (private_handle_t *)tempLayer->handle; | 
 |         } | 
 |  | 
 |         if(hnd) { | 
 |             if (!ctx->mFBUpdate[dpy]->draw(ctx, hnd)) { | 
 |                 ALOGE("%s: FBUpdate draw failed", __FUNCTION__); | 
 |                 ret = -1; | 
 |             } | 
 |         } | 
 |  | 
 |         int lSplit = getLeftSplit(ctx, dpy); | 
 |         qhwc::ovutils::Dim lRoi = qhwc::ovutils::Dim( | 
 |             ctx->listStats[dpy].lRoi.left, | 
 |             ctx->listStats[dpy].lRoi.top, | 
 |             ctx->listStats[dpy].lRoi.right - ctx->listStats[dpy].lRoi.left, | 
 |             ctx->listStats[dpy].lRoi.bottom - ctx->listStats[dpy].lRoi.top); | 
 |  | 
 |         qhwc::ovutils::Dim rRoi = qhwc::ovutils::Dim( | 
 |             ctx->listStats[dpy].rRoi.left - lSplit, | 
 |             ctx->listStats[dpy].rRoi.top, | 
 |             ctx->listStats[dpy].rRoi.right - ctx->listStats[dpy].rRoi.left, | 
 |             ctx->listStats[dpy].rRoi.bottom - ctx->listStats[dpy].rRoi.top); | 
 |  | 
 |         if(!Overlay::displayCommit(ctx->dpyAttr[dpy].fd, lRoi, rRoi)) { | 
 |             ALOGE("%s: display commit fail for %d dpy!", __FUNCTION__, dpy); | 
 |             ret = -1; | 
 |         } | 
 |  | 
 |     } | 
 |  | 
 |     closeAcquireFds(list); | 
 |     return ret; | 
 | } | 
 |  | 
 | static int hwc_set_external(hwc_context_t *ctx, | 
 |                             hwc_display_contents_1_t* list) | 
 | { | 
 |     ATRACE_CALL(); | 
 |     int ret = 0; | 
 |  | 
 |     const int dpy = HWC_DISPLAY_EXTERNAL; | 
 |  | 
 |  | 
 |     if (LIKELY(list) && ctx->dpyAttr[dpy].isActive && | 
 |         ctx->dpyAttr[dpy].connected && | 
 |         !ctx->dpyAttr[dpy].isPause) { | 
 |         size_t last = list->numHwLayers - 1; | 
 |         hwc_layer_1_t *fbLayer = &list->hwLayers[last]; | 
 |         int fd = -1; //FenceFD from the Copybit(valid in async mode) | 
 |         bool copybitDone = false; | 
 |         if(ctx->mCopyBit[dpy]) | 
 |             copybitDone = ctx->mCopyBit[dpy]->draw(ctx, list, dpy, &fd); | 
 |  | 
 |         if(list->numHwLayers > 1) | 
 |             hwc_sync(ctx, list, dpy, fd); | 
 |  | 
 |         // Dump the layers for external | 
 |         if(ctx->mHwcDebug[dpy]) | 
 |             ctx->mHwcDebug[dpy]->dumpLayers(list); | 
 |  | 
 |         if (!ctx->mMDPComp[dpy]->draw(ctx, list)) { | 
 |             ALOGE("%s: MDPComp draw failed", __FUNCTION__); | 
 |             ret = -1; | 
 |         } | 
 |  | 
 |         int extOnlyLayerIndex = | 
 |                 ctx->listStats[dpy].extOnlyLayerIndex; | 
 |  | 
 |         private_handle_t *hnd = (private_handle_t *)fbLayer->handle; | 
 |         if(extOnlyLayerIndex!= -1) { | 
 |             hwc_layer_1_t *extLayer = &list->hwLayers[extOnlyLayerIndex]; | 
 |             hnd = (private_handle_t *)extLayer->handle; | 
 |         } else if(copybitDone) { | 
 |             hnd = ctx->mCopyBit[dpy]->getCurrentRenderBuffer(); | 
 |         } | 
 |  | 
 |         if(hnd && !isYuvBuffer(hnd)) { | 
 |             if (!ctx->mFBUpdate[dpy]->draw(ctx, hnd)) { | 
 |                 ALOGE("%s: FBUpdate::draw fail!", __FUNCTION__); | 
 |                 ret = -1; | 
 |             } | 
 |         } | 
 |  | 
 |         if(!Overlay::displayCommit(ctx->dpyAttr[dpy].fd)) { | 
 |             ALOGE("%s: display commit fail for %d dpy!", __FUNCTION__, dpy); | 
 |             ret = -1; | 
 |         } | 
 |     } | 
 |  | 
 |     closeAcquireFds(list); | 
 |     return ret; | 
 | } | 
 |  | 
 | static int hwc_set(hwc_composer_device_1 *dev, | 
 |                    size_t numDisplays, | 
 |                    hwc_display_contents_1_t** displays) | 
 | { | 
 |     int ret = 0; | 
 |     hwc_context_t* ctx = (hwc_context_t*)(dev); | 
 |     for (int i = 0; i < (int)numDisplays; i++) { | 
 |         hwc_display_contents_1_t* list = displays[i]; | 
 |         int dpy = getDpyforExternalDisplay(ctx, i); | 
 |         switch(dpy) { | 
 |             case HWC_DISPLAY_PRIMARY: | 
 |                 ret = hwc_set_primary(ctx, list); | 
 |                 break; | 
 |             case HWC_DISPLAY_EXTERNAL: | 
 |                 ret = hwc_set_external(ctx, list); | 
 |                 break; | 
 |             case HWC_DISPLAY_VIRTUAL: | 
 |                 if(ctx->mHWCVirtual) | 
 |                     ret = ctx->mHWCVirtual->set(ctx, list); | 
 |                 break; | 
 |             default: | 
 |                 ret = -EINVAL; | 
 |         } | 
 |     } | 
 |     // This is only indicative of how many times SurfaceFlinger posts | 
 |     // frames to the display. | 
 |     CALC_FPS(); | 
 |     MDPComp::resetIdleFallBack(); | 
 |     ctx->mVideoTransFlag = false; | 
 |     //Was locked at the beginning of prepare | 
 |     ctx->mDrawLock.unlock(); | 
 |     return ret; | 
 | } | 
 |  | 
 | int hwc_getDisplayConfigs(struct hwc_composer_device_1* dev, int disp, | 
 |         uint32_t* configs, size_t* numConfigs) { | 
 |     int ret = 0; | 
 |     hwc_context_t* ctx = (hwc_context_t*)(dev); | 
 |     disp = getDpyforExternalDisplay(ctx, disp); | 
 |     //in 1.1 there is no way to choose a config, report as config id # 0 | 
 |     //This config is passed to getDisplayAttributes. Ignore for now. | 
 |     switch(disp) { | 
 |         case HWC_DISPLAY_PRIMARY: | 
 |             if(*numConfigs > 0) { | 
 |                 configs[0] = 0; | 
 |                 *numConfigs = 1; | 
 |             } | 
 |             ret = 0; //NO_ERROR | 
 |             break; | 
 |         case HWC_DISPLAY_EXTERNAL: | 
 |         case HWC_DISPLAY_VIRTUAL: | 
 |             ret = -1; //Not connected | 
 |             if(ctx->dpyAttr[disp].connected) { | 
 |                 ret = 0; //NO_ERROR | 
 |                 if(*numConfigs > 0) { | 
 |                     configs[0] = 0; | 
 |                     *numConfigs = 1; | 
 |                 } | 
 |             } | 
 |             break; | 
 |     } | 
 |     return ret; | 
 | } | 
 |  | 
 | int hwc_getDisplayAttributes(struct hwc_composer_device_1* dev, int disp, | 
 |         uint32_t /*config*/, const uint32_t* attributes, int32_t* values) { | 
 |  | 
 |     hwc_context_t* ctx = (hwc_context_t*)(dev); | 
 |     disp = getDpyforExternalDisplay(ctx, disp); | 
 |     //If hotpluggable displays(i.e, HDMI, WFD) are inactive return error | 
 |     if( (disp != HWC_DISPLAY_PRIMARY) && !ctx->dpyAttr[disp].connected) { | 
 |         return -1; | 
 |     } | 
 |  | 
 |     //From HWComposer | 
 |     static const uint32_t DISPLAY_ATTRIBUTES[] = { | 
 |         HWC_DISPLAY_VSYNC_PERIOD, | 
 |         HWC_DISPLAY_WIDTH, | 
 |         HWC_DISPLAY_HEIGHT, | 
 |         HWC_DISPLAY_DPI_X, | 
 |         HWC_DISPLAY_DPI_Y, | 
 |         HWC_DISPLAY_NO_ATTRIBUTE, | 
 |     }; | 
 |  | 
 |     const size_t NUM_DISPLAY_ATTRIBUTES = (sizeof(DISPLAY_ATTRIBUTES) / | 
 |             sizeof(DISPLAY_ATTRIBUTES)[0]); | 
 |  | 
 |     for (size_t i = 0; i < NUM_DISPLAY_ATTRIBUTES - 1; i++) { | 
 |         switch (attributes[i]) { | 
 |         case HWC_DISPLAY_VSYNC_PERIOD: | 
 |             values[i] = ctx->dpyAttr[disp].vsync_period; | 
 |             break; | 
 |         case HWC_DISPLAY_WIDTH: | 
 |             if (ctx->dpyAttr[disp].customFBSize) | 
 |                 values[i] = ctx->dpyAttr[disp].xres_new; | 
 |             else | 
 |                 values[i] = ctx->dpyAttr[disp].xres; | 
 |  | 
 |             ALOGD("%s disp = %d, width = %d",__FUNCTION__, disp, | 
 |                     values[i]); | 
 |             break; | 
 |         case HWC_DISPLAY_HEIGHT: | 
 |             if (ctx->dpyAttr[disp].customFBSize) | 
 |                 values[i] = ctx->dpyAttr[disp].yres_new; | 
 |             else | 
 |                 values[i] = ctx->dpyAttr[disp].yres; | 
 |             ALOGD("%s disp = %d, height = %d",__FUNCTION__, disp, | 
 |                     values[i]); | 
 |             break; | 
 |         case HWC_DISPLAY_DPI_X: | 
 |             values[i] = (int32_t) (ctx->dpyAttr[disp].xdpi*1000.0); | 
 |             break; | 
 |         case HWC_DISPLAY_DPI_Y: | 
 |             values[i] = (int32_t) (ctx->dpyAttr[disp].ydpi*1000.0); | 
 |             break; | 
 |         default: | 
 |             ALOGE("Unknown display attribute %d", | 
 |                     attributes[i]); | 
 |             return -EINVAL; | 
 |         } | 
 |     } | 
 |     return 0; | 
 | } | 
 |  | 
 | void hwc_dump(struct hwc_composer_device_1* dev, char *buff, int buff_len) | 
 | { | 
 |     hwc_context_t* ctx = (hwc_context_t*)(dev); | 
 |     Locker::Autolock _l(ctx->mDrawLock); | 
 |     android::String8 aBuf(""); | 
 |     dumpsys_log(aBuf, "Qualcomm HWC state:\n"); | 
 |     dumpsys_log(aBuf, "  MDPVersion=%d\n", ctx->mMDP.version); | 
 |     dumpsys_log(aBuf, "  DisplayPanel=%c\n", ctx->mMDP.panel); | 
 |     for(int dpy = 0; dpy < HWC_NUM_DISPLAY_TYPES; dpy++) { | 
 |         if(ctx->mMDPComp[dpy]) | 
 |             ctx->mMDPComp[dpy]->dump(aBuf, ctx); | 
 |     } | 
 |     char ovDump[2048] = {'\0'}; | 
 |     ctx->mOverlay->getDump(ovDump, 2048); | 
 |     dumpsys_log(aBuf, ovDump); | 
 |     ovDump[0] = '\0'; | 
 |     ctx->mRotMgr->getDump(ovDump, 1024); | 
 |     dumpsys_log(aBuf, ovDump); | 
 |     ovDump[0] = '\0'; | 
 |     if(Writeback::getDump(ovDump, 1024)) { | 
 |         dumpsys_log(aBuf, ovDump); | 
 |         ovDump[0] = '\0'; | 
 |     } | 
 |     strlcpy(buff, aBuf.string(), buff_len); | 
 | } | 
 |  | 
 | static int hwc_device_close(struct hw_device_t *dev) | 
 | { | 
 |     if(!dev) { | 
 |         ALOGE("%s: NULL device pointer", __FUNCTION__); | 
 |         return -1; | 
 |     } | 
 |     closeContext((hwc_context_t*)dev); | 
 |     free(dev); | 
 |  | 
 |     return 0; | 
 | } | 
 |  | 
 | static int hwc_device_open(const struct hw_module_t* module, const char* name, | 
 |                            struct hw_device_t** device) | 
 | { | 
 |     int status = -EINVAL; | 
 |  | 
 |     if (!strcmp(name, HWC_HARDWARE_COMPOSER)) { | 
 |         struct hwc_context_t *dev; | 
 |         dev = (hwc_context_t*)malloc(sizeof(*dev)); | 
 |         if(dev == NULL) | 
 |             return status; | 
 |         memset(dev, 0, sizeof(*dev)); | 
 |  | 
 |         //Initialize hwc context | 
 |         initContext(dev); | 
 |  | 
 |         //Setup HWC methods | 
 |         dev->device.common.tag          = HARDWARE_DEVICE_TAG; | 
 |         dev->device.common.version      = HWC_DEVICE_API_VERSION_1_3; | 
 |         dev->device.common.module       = const_cast<hw_module_t*>(module); | 
 |         dev->device.common.close        = hwc_device_close; | 
 |         dev->device.prepare             = hwc_prepare; | 
 |         dev->device.set                 = hwc_set; | 
 |         dev->device.eventControl        = hwc_eventControl; | 
 |         dev->device.blank               = hwc_blank; | 
 |         dev->device.query               = hwc_query; | 
 |         dev->device.registerProcs       = hwc_registerProcs; | 
 |         dev->device.dump                = hwc_dump; | 
 |         dev->device.getDisplayConfigs   = hwc_getDisplayConfigs; | 
 |         dev->device.getDisplayAttributes = hwc_getDisplayAttributes; | 
 |         *device = &dev->device.common; | 
 |         status = 0; | 
 |     } | 
 |     return status; | 
 | } |