1 /*
2 * Copyright (c) 2014 - 2015, 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:
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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.
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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;
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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 <utils/constants.h>
26 #include <utils/debug.h>
27 
28 #include "display_virtual.h"
29 #include "hw_interface.h"
30 #include "hw_info_interface.h"
31 #include "fb/hw_virtual.h"
32 
33 #define __CLASS__ "DisplayVirtual"
34 
35 namespace sdm {
36 
DisplayVirtual(DisplayEventHandler * event_handler,HWInfoInterface * hw_info_intf,BufferSyncHandler * buffer_sync_handler,CompManager * comp_manager,RotatorInterface * rotator_intf)37 DisplayVirtual::DisplayVirtual(DisplayEventHandler *event_handler, HWInfoInterface *hw_info_intf,
38                                BufferSyncHandler *buffer_sync_handler, CompManager *comp_manager,
39                                RotatorInterface *rotator_intf)
40   : DisplayBase(kVirtual, event_handler, kDeviceVirtual, buffer_sync_handler, comp_manager,
41                 rotator_intf, hw_info_intf) {
42 }
43 
Init()44 DisplayError DisplayVirtual::Init() {
45   SCOPE_LOCK(locker_);
46 
47   DisplayError error = HWVirtual::Create(&hw_intf_, hw_info_intf_,
48                                          DisplayBase::buffer_sync_handler_);
49   if (error != kErrorNone) {
50     return error;
51   }
52 
53   hw_intf_->GetDisplayAttributes(0 /* active_index */, &display_attributes_);
54 
55   error = DisplayBase::Init();
56   if (error != kErrorNone) {
57     HWVirtual::Destroy(hw_intf_);
58   }
59 
60   return error;
61 }
62 
Deinit()63 DisplayError DisplayVirtual::Deinit() {
64   SCOPE_LOCK(locker_);
65 
66   DisplayError error = DisplayBase::Deinit();
67   HWVirtual::Destroy(hw_intf_);
68 
69   return error;
70 }
71 
Prepare(LayerStack * layer_stack)72 DisplayError DisplayVirtual::Prepare(LayerStack *layer_stack) {
73   SCOPE_LOCK(locker_);
74   return DisplayBase::Prepare(layer_stack);
75 }
76 
Commit(LayerStack * layer_stack)77 DisplayError DisplayVirtual::Commit(LayerStack *layer_stack) {
78   SCOPE_LOCK(locker_);
79   return DisplayBase::Commit(layer_stack);
80 }
81 
Flush()82 DisplayError DisplayVirtual::Flush() {
83   SCOPE_LOCK(locker_);
84   return DisplayBase::Flush();
85 }
86 
GetDisplayState(DisplayState * state)87 DisplayError DisplayVirtual::GetDisplayState(DisplayState *state) {
88   SCOPE_LOCK(locker_);
89   return DisplayBase::GetDisplayState(state);
90 }
91 
GetNumVariableInfoConfigs(uint32_t * count)92 DisplayError DisplayVirtual::GetNumVariableInfoConfigs(uint32_t *count) {
93   SCOPE_LOCK(locker_);
94   *count = 1;
95   return kErrorNone;
96 }
97 
GetConfig(uint32_t index,DisplayConfigVariableInfo * variable_info)98 DisplayError DisplayVirtual::GetConfig(uint32_t index, DisplayConfigVariableInfo *variable_info) {
99   SCOPE_LOCK(locker_);
100   *variable_info = display_attributes_;
101   return kErrorNone;
102 }
103 
GetActiveConfig(uint32_t * index)104 DisplayError DisplayVirtual::GetActiveConfig(uint32_t *index) {
105   SCOPE_LOCK(locker_);
106   *index = 0;
107   return kErrorNone;
108 }
109 
GetVSyncState(bool * enabled)110 DisplayError DisplayVirtual::GetVSyncState(bool *enabled) {
111   SCOPE_LOCK(locker_);
112   return DisplayBase::GetVSyncState(enabled);
113 }
114 
IsUnderscanSupported()115 bool DisplayVirtual::IsUnderscanSupported() {
116   SCOPE_LOCK(locker_);
117   return DisplayBase::IsUnderscanSupported();
118 }
119 
SetDisplayState(DisplayState state)120 DisplayError DisplayVirtual::SetDisplayState(DisplayState state) {
121   SCOPE_LOCK(locker_);
122   return DisplayBase::SetDisplayState(state);
123 }
124 
SetActiveConfig(DisplayConfigVariableInfo * variable_info)125 DisplayError DisplayVirtual::SetActiveConfig(DisplayConfigVariableInfo *variable_info) {
126   SCOPE_LOCK(locker_);
127   DisplayError error = kErrorNone;
128 
129   if (!variable_info) {
130     return kErrorParameters;
131   }
132 
133   display_attributes_.x_pixels = variable_info->x_pixels;
134   display_attributes_.y_pixels = variable_info->y_pixels;
135   display_attributes_.fps = variable_info->fps;
136 
137   // if display is already connected, unregister display from composition manager and register
138   // the display with new configuration.
139   if (display_comp_ctx_) {
140     comp_manager_->UnregisterDisplay(display_comp_ctx_);
141   }
142 
143   error = comp_manager_->RegisterDisplay(display_type_, display_attributes_, hw_panel_info_,
144                                          &display_comp_ctx_);
145   if (error != kErrorNone) {
146     return error;
147   }
148 
149   return error;
150 }
151 
SetActiveConfig(uint32_t index)152 DisplayError DisplayVirtual::SetActiveConfig(uint32_t index) {
153   SCOPE_LOCK(locker_);
154   return kErrorNotSupported;
155 }
156 
SetVSyncState(bool enable)157 DisplayError DisplayVirtual::SetVSyncState(bool enable) {
158   SCOPE_LOCK(locker_);
159   return kErrorNotSupported;
160 }
161 
SetIdleTimeoutMs(uint32_t timeout_ms)162 void DisplayVirtual::SetIdleTimeoutMs(uint32_t timeout_ms) { }
163 
SetMaxMixerStages(uint32_t max_mixer_stages)164 DisplayError DisplayVirtual::SetMaxMixerStages(uint32_t max_mixer_stages) {
165   SCOPE_LOCK(locker_);
166   return DisplayBase::SetMaxMixerStages(max_mixer_stages);
167 }
168 
SetDisplayMode(uint32_t mode)169 DisplayError DisplayVirtual::SetDisplayMode(uint32_t mode) {
170   SCOPE_LOCK(locker_);
171   return DisplayBase::SetDisplayMode(mode);
172 }
173 
IsScalingValid(const LayerRect & crop,const LayerRect & dst,bool rotate90)174 DisplayError DisplayVirtual::IsScalingValid(const LayerRect &crop, const LayerRect &dst,
175                                             bool rotate90) {
176   SCOPE_LOCK(locker_);
177   return DisplayBase::IsScalingValid(crop, dst, rotate90);
178 }
179 
GetRefreshRateRange(uint32_t * min_refresh_rate,uint32_t * max_refresh_rate)180 DisplayError DisplayVirtual::GetRefreshRateRange(uint32_t *min_refresh_rate,
181                                                  uint32_t *max_refresh_rate) {
182   SCOPE_LOCK(locker_);
183   return DisplayBase::GetRefreshRateRange(min_refresh_rate, max_refresh_rate);
184 }
185 
SetRefreshRate(uint32_t refresh_rate)186 DisplayError DisplayVirtual::SetRefreshRate(uint32_t refresh_rate) {
187   SCOPE_LOCK(locker_);
188   return kErrorNotSupported;
189 }
190 
SetPanelBrightness(int level)191 DisplayError DisplayVirtual::SetPanelBrightness(int level) {
192   SCOPE_LOCK(locker_);
193   return DisplayBase::SetPanelBrightness(level);
194 }
195 
AppendDump(char * buffer,uint32_t length)196 void DisplayVirtual::AppendDump(char *buffer, uint32_t length) {
197   SCOPE_LOCK(locker_);
198   DisplayBase::AppendDump(buffer, length);
199 }
200 
SetCursorPosition(int x,int y)201 DisplayError DisplayVirtual::SetCursorPosition(int x, int y) {
202   SCOPE_LOCK(locker_);
203   return DisplayBase::SetCursorPosition(x, y);
204 }
205 
206 }  // namespace sdm
207 
208