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 <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 lock_guard<recursive_mutex> obj(recursive_mutex_);
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 lock_guard<recursive_mutex> obj(recursive_mutex_);
65
66 DisplayError error = DisplayBase::Deinit();
67 HWVirtual::Destroy(hw_intf_);
68
69 return error;
70 }
71
GetNumVariableInfoConfigs(uint32_t * count)72 DisplayError DisplayVirtual::GetNumVariableInfoConfigs(uint32_t *count) {
73 lock_guard<recursive_mutex> obj(recursive_mutex_);
74 *count = 1;
75 return kErrorNone;
76 }
77
GetConfig(uint32_t index,DisplayConfigVariableInfo * variable_info)78 DisplayError DisplayVirtual::GetConfig(uint32_t index, DisplayConfigVariableInfo *variable_info) {
79 lock_guard<recursive_mutex> obj(recursive_mutex_);
80 *variable_info = display_attributes_;
81 return kErrorNone;
82 }
83
GetActiveConfig(uint32_t * index)84 DisplayError DisplayVirtual::GetActiveConfig(uint32_t *index) {
85 lock_guard<recursive_mutex> obj(recursive_mutex_);
86 *index = 0;
87 return kErrorNone;
88 }
89
SetActiveConfig(DisplayConfigVariableInfo * variable_info)90 DisplayError DisplayVirtual::SetActiveConfig(DisplayConfigVariableInfo *variable_info) {
91 lock_guard<recursive_mutex> obj(recursive_mutex_);
92
93 if (!variable_info) {
94 return kErrorParameters;
95 }
96
97 DisplayError error = kErrorNone;
98 HWDisplayAttributes display_attributes;
99 HWMixerAttributes mixer_attributes;
100 DisplayConfigVariableInfo fb_config = *variable_info;
101
102 display_attributes.x_pixels = variable_info->x_pixels;
103 display_attributes.y_pixels = variable_info->y_pixels;
104 display_attributes.fps = variable_info->fps;
105
106 if (display_attributes == display_attributes_) {
107 return kErrorNone;
108 }
109
110 error = hw_intf_->SetDisplayAttributes(display_attributes);
111 if (error != kErrorNone) {
112 return error;
113 }
114
115 error = hw_intf_->GetMixerAttributes(&mixer_attributes);
116 if (error != kErrorNone) {
117 return error;
118 }
119
120 // Override x_pixels and y_pixels of frame buffer with mixer width and height
121 fb_config.x_pixels = mixer_attributes.width;
122 fb_config.y_pixels = mixer_attributes.height;
123
124 // if display is already connected, unregister display from composition manager and register
125 // the display with new configuration.
126 if (display_comp_ctx_) {
127 comp_manager_->UnregisterDisplay(display_comp_ctx_);
128 }
129
130 error = comp_manager_->RegisterDisplay(display_type_, display_attributes, hw_panel_info_,
131 mixer_attributes, fb_config, &display_comp_ctx_);
132 if (error != kErrorNone) {
133 return error;
134 }
135
136 display_attributes_ = display_attributes;
137 mixer_attributes_ = mixer_attributes;
138 fb_config_ = fb_config;
139
140 return kErrorNone;
141 }
142
143 } // namespace sdm
144
145