Bug Summary

File:Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_stm.h
Location:line 60, column 7
Description:Value stored to 'BufferIn' during its initialization is never read

Annotated Source Code

1// Copyright 2013 Dolphin Emulator Project
2// Licensed under GPLv2
3// Refer to the license.txt file included.
4
5#ifndef _WII_IPC_HLE_DEVICE_STM_H_
6#define _WII_IPC_HLE_DEVICE_STM_H_
7
8#include "WII_IPC_HLE_Device.h"
9
10enum
11{
12 IOCTL_STM_EVENTHOOK = 0x1000,
13 IOCTL_STM_GET_IDLEMODE = 0x3001,
14 IOCTL_STM_RELEASE_EH = 0x3002,
15 IOCTL_STM_HOTRESET = 0x2001,
16 IOCTL_STM_HOTRESET_FOR_PD = 0x2002,
17 IOCTL_STM_SHUTDOWN = 0x2003,
18 IOCTL_STM_IDLE = 0x2004,
19 IOCTL_STM_WAKEUP = 0x2005,
20 IOCTL_STM_VIDIMMING = 0x5001,
21 IOCTL_STM_LEDFLASH = 0x6001,
22 IOCTL_STM_LEDMODE = 0x6002,
23 IOCTL_STM_READVER = 0x7001,
24 IOCTL_STM_READDDRREG = 0x4001,
25 IOCTL_STM_READDDRREG2 = 0x4002,
26};
27
28// The /dev/stm/immediate
29class CWII_IPC_HLE_Device_stm_immediate : public IWII_IPC_HLE_Device
30{
31public:
32
33 CWII_IPC_HLE_Device_stm_immediate(u32 _DeviceID, const std::string& _rDeviceName) :
34 IWII_IPC_HLE_Device(_DeviceID, _rDeviceName)
35 {}
36
37 virtual ~CWII_IPC_HLE_Device_stm_immediate()
38 {}
39
40 virtual bool Open(u32 _CommandAddress, u32 _Mode)
41 {
42 INFO_LOG(WII_IPC_STM, "STM immediate: Open")do { { if (LogTypes::LINFO <= 3) GenericLog(LogTypes::LINFO
, LogTypes::WII_IPC_STM, "/home/anal/dolphin-emu/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_stm.h"
, 42, "STM immediate: Open"); } } while (0);
43 Memory::Write_U32(GetDeviceID(), _CommandAddress+4);
44 m_Active = true;
45 return true;
46 }
47
48 virtual bool Close(u32 _CommandAddress, bool _bForce)
49 {
50 INFO_LOG(WII_IPC_STM, "STM immediate: Close")do { { if (LogTypes::LINFO <= 3) GenericLog(LogTypes::LINFO
, LogTypes::WII_IPC_STM, "/home/anal/dolphin-emu/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_stm.h"
, 50, "STM immediate: Close"); } } while (0);
51 if (!_bForce)
52 Memory::Write_U32(0, _CommandAddress+4);
53 m_Active = false;
54 return true;
55 }
56
57 virtual bool IOCtl(u32 _CommandAddress)
58 {
59 u32 Parameter = Memory::Read_U32(_CommandAddress + 0x0C);
60 u32 BufferIn = Memory::Read_U32(_CommandAddress + 0x10);
Value stored to 'BufferIn' during its initialization is never read
61 u32 BufferInSize = Memory::Read_U32(_CommandAddress + 0x14);
62 u32 BufferOut = Memory::Read_U32(_CommandAddress + 0x18);
63 u32 BufferOutSize = Memory::Read_U32(_CommandAddress + 0x1C);
64
65 // Prepare the out buffer(s) with zeroes as a safety precaution
66 // to avoid returning bad values
67 Memory::Memset(BufferOut, 0, BufferOutSize);
68 u32 ReturnValue = 0;
69
70 switch(Parameter)
71 {
72 case IOCTL_STM_RELEASE_EH:
73 INFO_LOG(WII_IPC_STM, "%s - IOCtl:", GetDeviceName().c_str())do { { if (LogTypes::LINFO <= 3) GenericLog(LogTypes::LINFO
, LogTypes::WII_IPC_STM, "/home/anal/dolphin-emu/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_stm.h"
, 73, "%s - IOCtl:", GetDeviceName().c_str()); } } while (0);
74 INFO_LOG(WII_IPC_STM, " IOCTL_STM_RELEASE_EH")do { { if (LogTypes::LINFO <= 3) GenericLog(LogTypes::LINFO
, LogTypes::WII_IPC_STM, "/home/anal/dolphin-emu/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_stm.h"
, 74, " IOCTL_STM_RELEASE_EH"); } } while (0);
75 break;
76
77 case IOCTL_STM_HOTRESET:
78 INFO_LOG(WII_IPC_STM, "%s - IOCtl:", GetDeviceName().c_str())do { { if (LogTypes::LINFO <= 3) GenericLog(LogTypes::LINFO
, LogTypes::WII_IPC_STM, "/home/anal/dolphin-emu/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_stm.h"
, 78, "%s - IOCtl:", GetDeviceName().c_str()); } } while (0);
79 INFO_LOG(WII_IPC_STM, " IOCTL_STM_HOTRESET")do { { if (LogTypes::LINFO <= 3) GenericLog(LogTypes::LINFO
, LogTypes::WII_IPC_STM, "/home/anal/dolphin-emu/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_stm.h"
, 79, " IOCTL_STM_HOTRESET"); } } while (0);
80 break;
81
82 case IOCTL_STM_VIDIMMING: // (Input: 20 bytes, Output: 20 bytes)
83 INFO_LOG(WII_IPC_STM, "%s - IOCtl:", GetDeviceName().c_str())do { { if (LogTypes::LINFO <= 3) GenericLog(LogTypes::LINFO
, LogTypes::WII_IPC_STM, "/home/anal/dolphin-emu/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_stm.h"
, 83, "%s - IOCtl:", GetDeviceName().c_str()); } } while (0);
84 INFO_LOG(WII_IPC_STM, " IOCTL_STM_VIDIMMING")do { { if (LogTypes::LINFO <= 3) GenericLog(LogTypes::LINFO
, LogTypes::WII_IPC_STM, "/home/anal/dolphin-emu/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_stm.h"
, 84, " IOCTL_STM_VIDIMMING"); } } while (0);
85 //DumpCommands(BufferIn, BufferInSize / 4, LogTypes::WII_IPC_STM);
86 //Memory::Write_U32(1, BufferOut);
87 //ReturnValue = 1;
88 break;
89
90 case IOCTL_STM_LEDMODE: // (Input: 20 bytes, Output: 20 bytes)
91 INFO_LOG(WII_IPC_STM, "%s - IOCtl:", GetDeviceName().c_str())do { { if (LogTypes::LINFO <= 3) GenericLog(LogTypes::LINFO
, LogTypes::WII_IPC_STM, "/home/anal/dolphin-emu/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_stm.h"
, 91, "%s - IOCtl:", GetDeviceName().c_str()); } } while (0);
92 INFO_LOG(WII_IPC_STM, " IOCTL_STM_LEDMODE")do { { if (LogTypes::LINFO <= 3) GenericLog(LogTypes::LINFO
, LogTypes::WII_IPC_STM, "/home/anal/dolphin-emu/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_stm.h"
, 92, " IOCTL_STM_LEDMODE"); } } while (0);
93 break;
94
95 default:
96 {
97 _dbg_assert_msg_(WII_IPC_STM, 0, "CWII_IPC_HLE_Device_stm_immediate: 0x%x", Parameter){};
98
99 INFO_LOG(WII_IPC_STM, "%s - IOCtl:", GetDeviceName().c_str())do { { if (LogTypes::LINFO <= 3) GenericLog(LogTypes::LINFO
, LogTypes::WII_IPC_STM, "/home/anal/dolphin-emu/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_stm.h"
, 99, "%s - IOCtl:", GetDeviceName().c_str()); } } while (0);
100 DEBUG_LOG(WII_IPC_STM, " Parameter: 0x%x", Parameter)do { { if (LogTypes::LDEBUG <= 3) GenericLog(LogTypes::LDEBUG
, LogTypes::WII_IPC_STM, "/home/anal/dolphin-emu/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_stm.h"
, 100, " Parameter: 0x%x", Parameter); } } while (0);
101 DEBUG_LOG(WII_IPC_STM, " InBuffer: 0x%08x", BufferIn)do { { if (LogTypes::LDEBUG <= 3) GenericLog(LogTypes::LDEBUG
, LogTypes::WII_IPC_STM, "/home/anal/dolphin-emu/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_stm.h"
, 101, " InBuffer: 0x%08x", BufferIn); } } while (0);
102 DEBUG_LOG(WII_IPC_STM, " InBufferSize: 0x%08x", BufferInSize)do { { if (LogTypes::LDEBUG <= 3) GenericLog(LogTypes::LDEBUG
, LogTypes::WII_IPC_STM, "/home/anal/dolphin-emu/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_stm.h"
, 102, " InBufferSize: 0x%08x", BufferInSize); } } while (
0);
103 DEBUG_LOG(WII_IPC_STM, " OutBuffer: 0x%08x", BufferOut)do { { if (LogTypes::LDEBUG <= 3) GenericLog(LogTypes::LDEBUG
, LogTypes::WII_IPC_STM, "/home/anal/dolphin-emu/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_stm.h"
, 103, " OutBuffer: 0x%08x", BufferOut); } } while (0);
104 DEBUG_LOG(WII_IPC_STM, " OutBufferSize: 0x%08x", BufferOutSize)do { { if (LogTypes::LDEBUG <= 3) GenericLog(LogTypes::LDEBUG
, LogTypes::WII_IPC_STM, "/home/anal/dolphin-emu/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_stm.h"
, 104, " OutBufferSize: 0x%08x", BufferOutSize); } } while
(0);
105 }
106 break;
107 }
108
109 // Write return value to the IPC call
110 Memory::Write_U32(ReturnValue, _CommandAddress + 0x4);
111 return true;
112 }
113};
114
115// The /dev/stm/eventhook
116class CWII_IPC_HLE_Device_stm_eventhook : public IWII_IPC_HLE_Device
117{
118public:
119
120 CWII_IPC_HLE_Device_stm_eventhook(u32 _DeviceID, const std::string& _rDeviceName)
121 : IWII_IPC_HLE_Device(_DeviceID, _rDeviceName)
122 , m_EventHookAddress(0)
123 {}
124
125 virtual ~CWII_IPC_HLE_Device_stm_eventhook()
126 {
127 }
128
129 virtual bool Open(u32 _CommandAddress, u32 _Mode)
130 {
131 Memory::Write_U32(GetDeviceID(), _CommandAddress + 4);
132 m_Active = true;
133 return true;
134 }
135
136 virtual bool Close(u32 _CommandAddress, bool _bForce)
137 {
138 m_EventHookAddress = 0;
139
140 INFO_LOG(WII_IPC_STM, "STM eventhook: Close")do { { if (LogTypes::LINFO <= 3) GenericLog(LogTypes::LINFO
, LogTypes::WII_IPC_STM, "/home/anal/dolphin-emu/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_stm.h"
, 140, "STM eventhook: Close"); } } while (0);
141 if (!_bForce)
142 Memory::Write_U32(0, _CommandAddress+4);
143 m_Active = false;
144 return true;
145 }
146
147 virtual bool IOCtl(u32 _CommandAddress)
148 {
149 u32 Parameter = Memory::Read_U32(_CommandAddress + 0x0C);
150 u32 BufferIn = Memory::Read_U32(_CommandAddress + 0x10);
151 u32 BufferInSize = Memory::Read_U32(_CommandAddress + 0x14);
152 u32 BufferOut = Memory::Read_U32(_CommandAddress + 0x18);
153 u32 BufferOutSize = Memory::Read_U32(_CommandAddress + 0x1C);
154
155 // Prepare the out buffer(s) with zeros as a safety precaution
156 // to avoid returning bad values
157 Memory::Memset(BufferOut, 0, BufferOutSize);
158 u32 ReturnValue = 0;
159
160 // write return value
161 switch (Parameter)
162 {
163 case IOCTL_STM_EVENTHOOK:
164 {
165 m_EventHookAddress = _CommandAddress;
166
167 INFO_LOG(WII_IPC_STM, "%s registers event hook:", GetDeviceName().c_str())do { { if (LogTypes::LINFO <= 3) GenericLog(LogTypes::LINFO
, LogTypes::WII_IPC_STM, "/home/anal/dolphin-emu/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_stm.h"
, 167, "%s registers event hook:", GetDeviceName().c_str()); }
} while (0);
168 DEBUG_LOG(WII_IPC_STM, "%x - IOCTL_STM_EVENTHOOK", Parameter)do { { if (LogTypes::LDEBUG <= 3) GenericLog(LogTypes::LDEBUG
, LogTypes::WII_IPC_STM, "/home/anal/dolphin-emu/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_stm.h"
, 168, "%x - IOCTL_STM_EVENTHOOK", Parameter); } } while (0);
169 DEBUG_LOG(WII_IPC_STM, "BufferIn: 0x%08x", BufferIn)do { { if (LogTypes::LDEBUG <= 3) GenericLog(LogTypes::LDEBUG
, LogTypes::WII_IPC_STM, "/home/anal/dolphin-emu/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_stm.h"
, 169, "BufferIn: 0x%08x", BufferIn); } } while (0);
170 DEBUG_LOG(WII_IPC_STM, "BufferInSize: 0x%08x", BufferInSize)do { { if (LogTypes::LDEBUG <= 3) GenericLog(LogTypes::LDEBUG
, LogTypes::WII_IPC_STM, "/home/anal/dolphin-emu/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_stm.h"
, 170, "BufferInSize: 0x%08x", BufferInSize); } } while (0);
171 DEBUG_LOG(WII_IPC_STM, "BufferOut: 0x%08x", BufferOut)do { { if (LogTypes::LDEBUG <= 3) GenericLog(LogTypes::LDEBUG
, LogTypes::WII_IPC_STM, "/home/anal/dolphin-emu/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_stm.h"
, 171, "BufferOut: 0x%08x", BufferOut); } } while (0);
172 DEBUG_LOG(WII_IPC_STM, "BufferOutSize: 0x%08x", BufferOutSize)do { { if (LogTypes::LDEBUG <= 3) GenericLog(LogTypes::LDEBUG
, LogTypes::WII_IPC_STM, "/home/anal/dolphin-emu/Source/Core/Core/Src/IPC_HLE/WII_IPC_HLE_Device_stm.h"
, 172, "BufferOutSize: 0x%08x", BufferOutSize); } } while (0);
173
174 DumpCommands(BufferIn, BufferInSize/4, LogTypes::WII_IPC_STM);
175 }
176 break;
177
178 default:
179 _dbg_assert_msg_(WII_IPC_STM, 0, "unknown %s ioctl %x",{}
180 GetDeviceName().c_str(), Parameter){};
181 break;
182 }
183
184 // Write return value to the IPC call, 0 means success
185 Memory::Write_U32(ReturnValue, _CommandAddress + 0x4);
186 return false;
187 }
188
189 // STATE_TO_SAVE
190 u32 m_EventHookAddress;
191};
192
193#endif