1 /*
2 * Copyright (c) 2014 - 2016, The Linux Foundation. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without modification, are permitted
5 * provided that the following conditions are met:
6 * * Redistributions of source code must retain the above copyright notice, this list of
7 * conditions and the following disclaimer.
8 * * Redistributions in binary form must reproduce the above copyright notice, this list of
9 * conditions and the following disclaimer in the documentation and/or other materials provided
10 * with the distribution.
11 * * Neither the name of The Linux Foundation nor the names of its contributors may be used to
12 * endorse or promote products derived from this software without specific prior written
13 * permission.
14 *
15 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
16 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
17 * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
19 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
20 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
21 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
22 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */
24
25 #include <dlfcn.h>
26 #include <utils/locker.h>
27 #include <utils/constants.h>
28 #include <utils/debug.h>
29
30 #include "core_impl.h"
31 #include "display_primary.h"
32 #include "display_hdmi.h"
33 #include "display_virtual.h"
34 #include "hw_info_interface.h"
35 #include "color_manager.h"
36
37 #define __CLASS__ "CoreImpl"
38
39 namespace sdm {
40
CoreImpl(BufferAllocator * buffer_allocator,BufferSyncHandler * buffer_sync_handler)41 CoreImpl::CoreImpl(BufferAllocator *buffer_allocator,
42 BufferSyncHandler *buffer_sync_handler)
43 : buffer_allocator_(buffer_allocator), buffer_sync_handler_(buffer_sync_handler) {
44 }
45
Init()46 DisplayError CoreImpl::Init() {
47 SCOPE_LOCK(locker_);
48 DisplayError error = kErrorNone;
49
50 // Try to load extension library & get handle to its interface.
51 extension_lib_ = ::dlopen(EXTENSION_LIBRARY_NAME, RTLD_NOW);
52 if (extension_lib_) {
53 void **create_sym = reinterpret_cast<void **>(&create_extension_intf_);
54 void **destroy_sym = reinterpret_cast<void **>(&destroy_extension_intf_);
55
56 *create_sym = ::dlsym(extension_lib_, CREATE_EXTENSION_INTERFACE_NAME);
57 *destroy_sym = ::dlsym(extension_lib_, DESTROY_EXTENSION_INTERFACE_NAME);
58
59 if (!create_extension_intf_ || !destroy_extension_intf_) {
60 DLOGE("Unable to load symbols, error = %s", ::dlerror());
61 ::dlclose(extension_lib_);
62 return kErrorUndefined;
63 }
64
65 error = create_extension_intf_(EXTENSION_VERSION_TAG, &extension_intf_);
66 if (error != kErrorNone) {
67 DLOGE("Unable to create interface, error = %s", ::dlerror());
68 ::dlclose(extension_lib_);
69 return error;
70 }
71 } else {
72 DLOGW("Unable to load = %s, error = %s", EXTENSION_LIBRARY_NAME, ::dlerror());
73 }
74
75 error = HWInfoInterface::Create(&hw_info_intf_);
76 if (error != kErrorNone) {
77 goto CleanupOnError;
78 }
79
80 hw_resource_ = new HWResourceInfo();
81 if (!hw_resource_) {
82 error = kErrorMemory;
83 goto CleanupOnError;
84 }
85
86 error = hw_info_intf_->GetHWResourceInfo(hw_resource_);
87 if (error != kErrorNone) {
88 goto CleanupOnError;
89 }
90
91 error = comp_mgr_.Init(*hw_resource_, extension_intf_, buffer_sync_handler_);
92 if (error != kErrorNone) {
93 goto CleanupOnError;
94 }
95
96 if (extension_intf_ && hw_resource_->hw_rot_info.num_rotator) {
97 error = extension_intf_->CreateRotator(hw_resource_->hw_rot_info, buffer_allocator_,
98 buffer_sync_handler_, &rotator_intf_);
99 if (error != kErrorNone) {
100 DLOGW("rotation is not supported");
101 }
102 }
103
104 error = ColorManagerProxy::Init(*hw_resource_);
105 // if failed, doesn't affect display core functionalities.
106 if (error != kErrorNone) {
107 DLOGW("Unable creating color manager and continue without it.");
108 }
109
110 return kErrorNone;
111
112 CleanupOnError:
113 if (hw_info_intf_) {
114 HWInfoInterface::Destroy(hw_info_intf_);
115 }
116
117 if (hw_resource_) {
118 delete hw_resource_;
119 }
120
121 if (extension_lib_) {
122 destroy_extension_intf_(extension_intf_);
123 ::dlclose(extension_lib_);
124 }
125
126 return error;
127 }
128
Deinit()129 DisplayError CoreImpl::Deinit() {
130 SCOPE_LOCK(locker_);
131
132 if (extension_intf_ && hw_resource_->hw_rot_info.num_rotator) {
133 extension_intf_->DestroyRotator(rotator_intf_);
134 }
135
136 ColorManagerProxy::Deinit();
137
138 comp_mgr_.Deinit();
139 HWInfoInterface::Destroy(hw_info_intf_);
140
141 if (hw_resource_) {
142 delete hw_resource_;
143 }
144
145 if (extension_lib_) {
146 destroy_extension_intf_(extension_intf_);
147 ::dlclose(extension_lib_);
148 }
149
150 return kErrorNone;
151 }
152
CreateDisplay(DisplayType type,DisplayEventHandler * event_handler,DisplayInterface ** intf)153 DisplayError CoreImpl::CreateDisplay(DisplayType type, DisplayEventHandler *event_handler,
154 DisplayInterface **intf) {
155 SCOPE_LOCK(locker_);
156
157 if (!event_handler || !intf) {
158 return kErrorParameters;
159 }
160
161 DisplayBase *display_base = NULL;
162
163 switch (type) {
164 case kPrimary:
165 display_base = new DisplayPrimary(event_handler, hw_info_intf_, buffer_sync_handler_,
166 &comp_mgr_, rotator_intf_);
167 break;
168 case kHDMI:
169 display_base = new DisplayHDMI(event_handler, hw_info_intf_, buffer_sync_handler_,
170 &comp_mgr_, rotator_intf_);
171 break;
172 case kVirtual:
173 display_base = new DisplayVirtual(event_handler, hw_info_intf_, buffer_sync_handler_,
174 &comp_mgr_, rotator_intf_);
175 break;
176 default:
177 DLOGE("Spurious display type %d", type);
178 return kErrorParameters;
179 }
180
181 if (!display_base) {
182 return kErrorMemory;
183 }
184
185 DisplayError error = display_base->Init();
186 if (error != kErrorNone) {
187 delete display_base;
188 return error;
189 }
190
191 *intf = display_base;
192 return kErrorNone;
193 }
194
DestroyDisplay(DisplayInterface * intf)195 DisplayError CoreImpl::DestroyDisplay(DisplayInterface *intf) {
196 SCOPE_LOCK(locker_);
197
198 if (!intf) {
199 return kErrorParameters;
200 }
201
202 DisplayBase *display_base = static_cast<DisplayBase *>(intf);
203 display_base->Deinit();
204 delete display_base;
205
206 return kErrorNone;
207 }
208
SetMaxBandwidthMode(HWBwModes mode)209 DisplayError CoreImpl::SetMaxBandwidthMode(HWBwModes mode) {
210 SCOPE_LOCK(locker_);
211
212 return comp_mgr_.SetMaxBandwidthMode(mode);
213 }
214
215 } // namespace sdm
216
217