blob: 3690f2b69d33b716e7f8907dae5d22e690c46922 [file] [log] [blame]
/*
* Copyright (c) 2016-2017, 2019-2020 The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <utils/constants.h>
#include <utils/debug.h>
#include <utils/locker.h>
#include "hwc_callbacks.h"
#define __CLASS__ "HWCCallbacks"
namespace sdm {
HWC2::Error HWCCallbacks::Hotplug(hwc2_display_t display, HWC2::Connection state) {
SCOPE_LOCK(hotplug_lock_);
DTRACE_SCOPED();
// If client has not registered hotplug, wait for it finitely:
// 1. spurious wake up (!hotplug_), wait again
// 2. error = ETIMEDOUT, return with warning 1
// 3. error != ETIMEDOUT, return with warning 2
// 4. error == NONE and no spurious wake up, then !hotplug_ is false, exit loop
while (!hotplug_) {
DLOGW("Attempting to send client a hotplug too early Display = %" PRIu64 " state = %d", display,
state);
int ret = hotplug_lock_.WaitFinite(5000);
if (ret == ETIMEDOUT) {
DLOGW("Client didn't connect on time, dropping hotplug!");
return HWC2::Error::None;
} else if (ret != 0) {
DLOGW("Failed client connection wait. Error %s, dropping hotplug!", strerror(ret));
return HWC2::Error::None;
}
}
hotplug_(hotplug_data_, display, INT32(state));
return HWC2::Error::None;
}
HWC2::Error HWCCallbacks::Refresh(hwc2_display_t display) {
SCOPE_LOCK(refresh_lock_);
// Do not lock, will cause hotplug deadlock
DTRACE_SCOPED();
// If client has not registered refresh, drop it
if (!refresh_) {
return HWC2::Error::NoResources;
}
refresh_(refresh_data_, display);
pending_refresh_.set(UINT32(display));
return HWC2::Error::None;
}
HWC2::Error HWCCallbacks::Vsync(hwc2_display_t display, int64_t timestamp) {
SCOPE_LOCK(vsync_lock_);
// Do not lock, may cause hotplug deadlock
DTRACE_SCOPED();
// If client has not registered vsync, drop it
if (!vsync_) {
return HWC2::Error::NoResources;
}
vsync_(vsync_data_, display, timestamp);
return HWC2::Error::None;
}
HWC2::Error HWCCallbacks::Vsync_2_4(hwc2_display_t display, int64_t timestamp, uint32_t period) {
SCOPE_LOCK(vsync_2_4_lock_);
DTRACE_SCOPED();
if (!vsync_2_4_) {
return HWC2::Error::NoResources;
}
vsync_2_4_(vsync_2_4_data_, display, timestamp, period);
return HWC2::Error::None;
}
HWC2::Error HWCCallbacks::VsyncPeriodTimingChanged(
hwc2_display_t display, hwc_vsync_period_change_timeline_t *updated_timeline) {
SCOPE_LOCK(vsync_period_timing_changed_lock_);
DTRACE_SCOPED();
if (!vsync_period_timing_changed_) {
return HWC2::Error::NoResources;
}
vsync_period_timing_changed_(vsync_period_timing_changed_data_, display, updated_timeline);
return HWC2::Error::None;
}
HWC2::Error HWCCallbacks::SeamlessPossible(hwc2_display_t display) {
SCOPE_LOCK(seamless_possible_lock_);
DTRACE_SCOPED();
if (!seamless_possible_) {
return HWC2::Error::NoResources;
}
seamless_possible_(seamless_possible_data_, display);
return HWC2::Error::None;
}
HWC2::Error HWCCallbacks::Register(HWC2::Callback descriptor, hwc2_callback_data_t callback_data,
hwc2_function_pointer_t pointer) {
switch (descriptor) {
case HWC2::Callback::Hotplug: {
SCOPE_LOCK(hotplug_lock_);
hotplug_data_ = callback_data;
hotplug_ = reinterpret_cast<HWC2_PFN_HOTPLUG>(pointer);
client_connected_ = true;
hotplug_lock_.Broadcast();
} break;
case HWC2::Callback::Refresh: {
SCOPE_LOCK(refresh_lock_);
refresh_data_ = callback_data;
refresh_ = reinterpret_cast<HWC2_PFN_REFRESH>(pointer);
} break;
case HWC2::Callback::Vsync: {
SCOPE_LOCK(vsync_lock_);
vsync_data_ = callback_data;
vsync_ = reinterpret_cast<HWC2_PFN_VSYNC>(pointer);
} break;
case HWC2::Callback::Vsync_2_4: {
SCOPE_LOCK(vsync_2_4_lock_);
vsync_2_4_data_ = callback_data;
vsync_2_4_ = reinterpret_cast<HWC2_PFN_VSYNC_2_4>(pointer);
} break;
case HWC2::Callback::VsyncPeriodTimingChanged: {
SCOPE_LOCK(vsync_period_timing_changed_lock_);
vsync_period_timing_changed_data_ = callback_data;
vsync_period_timing_changed_ =
reinterpret_cast<HWC2_PFN_VSYNC_PERIOD_TIMING_CHANGED>(pointer);
} break;
case HWC2::Callback::SeamlessPossible: {
SCOPE_LOCK(seamless_possible_lock_);
seamless_possible_data_ = callback_data;
seamless_possible_ = reinterpret_cast<HWC2_PFN_SEAMLESS_POSSIBLE>(pointer);
} break;
default:
return HWC2::Error::BadParameter;
}
return HWC2::Error::None;
}
} // namespace sdm