220a30c282
Do not use fb handle in prepare. Use displayFrame for dimensions, align them and hardcode format Change-Id: I5c494a74a807d3a52a1c88257494b58c583700f5
363 lines
13 KiB
C++
363 lines
13 KiB
C++
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/*
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* Copyright (C) 2010 The Android Open Source Project
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* Copyright (C) 2012, The Linux Foundation. All rights reserved.
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*
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* Not a Contribution, Apache license notifications and license are
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* retained for attribution purposes only.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define UEVENT_DEBUG 0
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#include <hardware_legacy/uevent.h>
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#include <utils/Log.h>
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#include <sys/resource.h>
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#include <sys/prctl.h>
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#include <string.h>
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#include <stdlib.h>
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#include "hwc_utils.h"
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#include "hwc_fbupdate.h"
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#include "hwc_mdpcomp.h"
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#include "hwc_copybit.h"
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#include "comptype.h"
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#include "external.h"
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#include "virtual.h"
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#include "mdp_version.h"
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using namespace overlay;
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namespace qhwc {
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#define HWC_UEVENT_SWITCH_STR "change@/devices/virtual/switch/"
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#define HWC_UEVENT_THREAD_NAME "hwcUeventThread"
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/* External Display states */
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enum {
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EXTERNAL_OFFLINE = 0,
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EXTERNAL_ONLINE,
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EXTERNAL_PAUSE,
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EXTERNAL_RESUME
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};
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static void setup(hwc_context_t* ctx, int dpy)
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{
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ctx->mFBUpdate[dpy] = IFBUpdate::getObject(ctx, dpy);
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ctx->mMDPComp[dpy] = MDPComp::getObject(ctx, dpy);
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int compositionType =
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qdutils::QCCompositionType::getInstance().getCompositionType();
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if (compositionType & (qdutils::COMPOSITION_TYPE_DYN |
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qdutils::COMPOSITION_TYPE_MDP |
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qdutils::COMPOSITION_TYPE_C2D)) {
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ctx->mCopyBit[dpy] = new CopyBit(ctx, dpy);
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}
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}
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static void clear(hwc_context_t* ctx, int dpy)
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{
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if(ctx->mFBUpdate[dpy]) {
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delete ctx->mFBUpdate[dpy];
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ctx->mFBUpdate[dpy] = NULL;
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}
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if(ctx->mCopyBit[dpy]){
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delete ctx->mCopyBit[dpy];
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ctx->mCopyBit[dpy] = NULL;
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}
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if(ctx->mMDPComp[dpy]) {
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delete ctx->mMDPComp[dpy];
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ctx->mMDPComp[dpy] = NULL;
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}
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}
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/* Parse uevent data for devices which we are interested */
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static int getConnectedDisplay(const char* strUdata)
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{
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if(strcasestr("change@/devices/virtual/switch/hdmi", strUdata))
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return HWC_DISPLAY_EXTERNAL;
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if(strcasestr("change@/devices/virtual/switch/wfd", strUdata))
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return HWC_DISPLAY_VIRTUAL;
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return -1;
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}
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static bool getPanelResetStatus(hwc_context_t* ctx, const char* strUdata, int len)
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{
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const char* iter_str = strUdata;
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if (strcasestr("change@/devices/virtual/graphics/fb0", strUdata)) {
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while(((iter_str - strUdata) <= len) && (*iter_str)) {
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char* pstr = strstr(iter_str, "PANEL_ALIVE=0");
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if (pstr != NULL) {
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ALOGI("%s: got change event in fb0 with PANEL_ALIVE=0",
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__FUNCTION__);
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ctx->mPanelResetStatus = true;
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return true;
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}
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iter_str += strlen(iter_str)+1;
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}
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}
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return false;
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}
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/* Parse uevent data for action requested for the display */
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static int getConnectedState(const char* strUdata, int len)
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{
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const char* iter_str = strUdata;
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while(((iter_str - strUdata) <= len) && (*iter_str)) {
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char* pstr = strstr(iter_str, "SWITCH_STATE=");
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if (pstr != NULL) {
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return (atoi(pstr + strlen("SWITCH_STATE=")));
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}
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iter_str += strlen(iter_str)+1;
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}
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return -1;
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}
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static void handle_uevent(hwc_context_t* ctx, const char* udata, int len)
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{
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bool bpanelReset = getPanelResetStatus(ctx, udata, len);
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if (bpanelReset) {
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return;
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}
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int dpy = getConnectedDisplay(udata);
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if(dpy < 0) {
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ALOGD_IF(UEVENT_DEBUG, "%s: Not disp Event ", __FUNCTION__);
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return;
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}
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int switch_state = getConnectedState(udata, len);
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ALOGE_IF(UEVENT_DEBUG,"%s: uevent recieved: %s switch state: %d",
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__FUNCTION__,udata, switch_state);
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switch(switch_state) {
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case EXTERNAL_OFFLINE:
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{
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/* Display not connected */
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if(!ctx->dpyAttr[dpy].connected){
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ALOGE_IF(UEVENT_DEBUG,"%s: Ignoring EXTERNAL_OFFLINE event"
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"for display: %d", __FUNCTION__, dpy);
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break;
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}
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Locker::Autolock _l(ctx->mDrawLock);
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clear(ctx, dpy);
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ctx->dpyAttr[dpy].connected = false;
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ctx->dpyAttr[dpy].isActive = false;
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if(dpy == HWC_DISPLAY_EXTERNAL) {
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ctx->mExtDisplay->teardown();
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} else {
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ctx->mVirtualDisplay->teardown();
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}
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/* We need to send hotplug to SF only when we are disconnecting
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* (1) HDMI OR (2) proprietary WFD session */
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if(dpy == HWC_DISPLAY_EXTERNAL ||
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ctx->mVirtualonExtActive) {
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ALOGE_IF(UEVENT_DEBUG,"%s:Sending EXTERNAL OFFLINE hotplug"
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"event", __FUNCTION__);
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ctx->proc->hotplug(ctx->proc, HWC_DISPLAY_EXTERNAL,
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EXTERNAL_OFFLINE);
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ctx->mVirtualonExtActive = false;
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}
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break;
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}
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case EXTERNAL_ONLINE:
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{
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/* Display already connected */
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if(ctx->dpyAttr[dpy].connected) {
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ALOGE_IF(UEVENT_DEBUG,"%s: Ignoring EXTERNAL_ONLINE event"
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"for display: %d", __FUNCTION__, dpy);
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break;
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}
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{
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//Force composition to give up resources like pipes and
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//close fb. For example if assertive display is going on,
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//fb2 could be open, thus connecting Layer Mixer#0 to
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//WriteBack module. If HDMI attempts to open fb1, the driver
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//will try to attach Layer Mixer#0 to HDMI INT, which will
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//fail, since Layer Mixer#0 is still connected to WriteBack.
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//This block will force composition to close fb2 in above
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//example.
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Locker::Autolock _l(ctx->mDrawLock);
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ctx->dpyAttr[dpy].isConfiguring = true;
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ctx->proc->invalidate(ctx->proc);
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}
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//2 cycles for slower content
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usleep(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].vsync_period
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* 2 / 1000);
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if(dpy == HWC_DISPLAY_EXTERNAL) {
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if(ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].connected) {
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ALOGD_IF(UEVENT_DEBUG,"Received HDMI connection request"
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"when WFD is active");
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{
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Locker::Autolock _l(ctx->mDrawLock);
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clear(ctx, HWC_DISPLAY_VIRTUAL);
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ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].connected = false;
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ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].isActive = false;
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}
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ctx->mVirtualDisplay->teardown();
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/* Need to send hotplug only when connected WFD in
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* proprietary path */
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if(ctx->mVirtualonExtActive) {
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ALOGE_IF(UEVENT_DEBUG,"%s: Sending EXTERNAL OFFLINE"
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"hotplug event", __FUNCTION__);
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ctx->proc->hotplug(ctx->proc, HWC_DISPLAY_EXTERNAL,
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EXTERNAL_OFFLINE);
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{
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Locker::Autolock _l(ctx->mDrawLock);
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ctx->mVirtualonExtActive = false;
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}
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}
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/* Wait for few frames for SF to tear down
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* the WFD session. */
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usleep(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].vsync_period
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* 2 / 1000);
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}
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ctx->mExtDisplay->configure();
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} else {
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{
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Locker::Autolock _l(ctx->mDrawLock);
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/* TRUE only when we are on proprietary WFD session */
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ctx->mVirtualonExtActive = true;
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char property[PROPERTY_VALUE_MAX];
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if((property_get("persist.sys.wfd.virtual",
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property, NULL) > 0) &&
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(!strncmp(property, "1", PROPERTY_VALUE_MAX ) ||
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(!strncasecmp(property,"true", PROPERTY_VALUE_MAX )))) {
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// This means we are on Google's WFD session
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ctx->mVirtualonExtActive = false;
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}
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}
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ctx->mVirtualDisplay->configure();
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}
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Locker::Autolock _l(ctx->mDrawLock);
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setup(ctx, dpy);
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ctx->dpyAttr[dpy].isPause = false;
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ctx->dpyAttr[dpy].connected = true;
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ctx->dpyAttr[dpy].isConfiguring = true;
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if(dpy == HWC_DISPLAY_EXTERNAL ||
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ctx->mVirtualonExtActive) {
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/* External display is HDMI or non-hybrid WFD solution */
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ALOGE_IF(UEVENT_DEBUG, "%s: Sending EXTERNAL_OFFLINE ONLINE"
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"hotplug event", __FUNCTION__);
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ctx->proc->hotplug(ctx->proc,HWC_DISPLAY_EXTERNAL,
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EXTERNAL_ONLINE);
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} else {
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/* We wont be getting unblank for VIRTUAL DISPLAY and its
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* always guaranteed from WFD stack that CONNECT uevent for
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* VIRTUAL DISPLAY will be triggered before creating
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* surface for the same. */
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ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].isActive = true;
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}
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break;
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}
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case EXTERNAL_PAUSE:
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{ // pause case
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ALOGD("%s Received Pause event",__FUNCTION__);
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{
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Locker::Autolock _l(ctx->mDrawLock);
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ctx->dpyAttr[dpy].isActive = true;
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ctx->dpyAttr[dpy].isPause = true;
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ctx->proc->invalidate(ctx->proc);
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}
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usleep(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].vsync_period
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* 2 / 1000);
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// At this point all the pipes used by External have been
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// marked as UNSET.
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{
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Locker::Autolock _l(ctx->mDrawLock);
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// Perform commit to unstage the pipes.
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if (!Overlay::displayCommit(ctx->dpyAttr[dpy].fd)) {
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ALOGE("%s: display commit fail! for %d dpy",
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__FUNCTION__, dpy);
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}
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}
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break;
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}
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case EXTERNAL_RESUME:
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{ // resume case
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ALOGD("%s Received resume event",__FUNCTION__);
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//Treat Resume as Online event
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//Since external didnt have any pipes, force primary to give up
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//its pipes; we don't allow inter-mixer pipe transfers.
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{
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Locker::Autolock _l(ctx->mDrawLock);
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// A dynamic resolution change (DRC) can be made for a WiFi
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// display. In order to support the resolution change, we
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// need to reconfigure the corresponding display attributes.
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// Since DRC is only on WiFi display, we only need to call
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// configure() on the VirtualDisplay device.
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if(dpy == HWC_DISPLAY_VIRTUAL)
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ctx->mVirtualDisplay->configure();
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ctx->dpyAttr[dpy].isConfiguring = true;
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ctx->dpyAttr[dpy].isActive = true;
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ctx->proc->invalidate(ctx->proc);
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}
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usleep(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].vsync_period
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* 2 / 1000);
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//At this point external has all the pipes it would need.
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{
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Locker::Autolock _l(ctx->mDrawLock);
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ctx->dpyAttr[dpy].isPause = false;
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ctx->proc->invalidate(ctx->proc);
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}
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break;
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}
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default:
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{
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ALOGE("%s: Invalid state to swtich:%d", __FUNCTION__, switch_state);
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break;
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}
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}
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}
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static void *uevent_loop(void *param)
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{
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int len = 0;
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static char udata[PAGE_SIZE];
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hwc_context_t * ctx = reinterpret_cast<hwc_context_t *>(param);
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char thread_name[64] = HWC_UEVENT_THREAD_NAME;
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prctl(PR_SET_NAME, (unsigned long) &thread_name, 0, 0, 0);
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setpriority(PRIO_PROCESS, 0, HAL_PRIORITY_URGENT_DISPLAY);
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if(!uevent_init()) {
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ALOGE("%s: failed to init uevent ",__FUNCTION__);
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return NULL;
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}
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while(1) {
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len = uevent_next_event(udata, sizeof(udata) - 2);
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handle_uevent(ctx, udata, len);
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}
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return NULL;
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}
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void init_uevent_thread(hwc_context_t* ctx)
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{
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pthread_t uevent_thread;
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int ret;
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ALOGI("Initializing UEVENT Thread");
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ret = pthread_create(&uevent_thread, NULL, uevent_loop, (void*) ctx);
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if (ret) {
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ALOGE("%s: failed to create %s: %s", __FUNCTION__,
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HWC_UEVENT_THREAD_NAME, strerror(ret));
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}
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}
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}; //namespace
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