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CDROM: Return error for incorrect parameter count

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This commit is contained in:
Connor McLaughlin 2020-05-30 21:59:03 +10:00
parent 69a00a64e6
commit a4f79de7f6
2 changed files with 281 additions and 9 deletions
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282
src/core/cdrom.cpp
View file

@ -11,6 +11,270 @@
#include "system.h" #include "system.h"
Log_SetChannel(CDROM); Log_SetChannel(CDROM);
struct CommandInfo
{
const char* name;
u8 expected_parameters;
};
static std::array<CommandInfo, 255> s_command_info = {{
{"Sync", 0},
{"Getstat", 0},
{"Setloc", 3},
{"Play", 0},
{"Forward", 0},
{"Backward", 0},
{"ReadN", 0},
{"MotorOn", 0},
{"Stop", 0},
{"Pause", 0},
{"Reset", 0},
{"Mute", 0},
{"Demute", 0},
{"Setfilter", 2},
{"Setmode", 1},
{"Getparam", 0},
{"GetlocL", 0},
{"GetlocP", 0},
{"SetSession", 1},
{"GetTN", 0},
{"GetTD", 1},
{"SeekL", 0},
{"SeekP", 0},
{"SetClock", 0},
{"GetClock", 0},
{"Test", 1},
{"GetID", 0},
{"ReadS", 0},
{"Init", 0},
{"GetQ", 2},
{"ReadTOC", 0},
{"VideoCD", 6},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
{"Unknown", 0},
0 // Unknown
}};
CDROM::CDROM() = default; CDROM::CDROM() = default;
CDROM::~CDROM() = default; CDROM::~CDROM() = default;
@ -617,7 +881,16 @@ void CDROM::AbortCommand()
void CDROM::ExecuteCommand() void CDROM::ExecuteCommand()
{ {
Log_DevPrintf("CDROM executing command 0x%02X", ZeroExtend32(static_cast<u8>(m_command))); const CommandInfo& ci = s_command_info[static_cast<u8>(m_command)];
Log_DevPrintf("CDROM executing command 0x%02X (%s)", static_cast<u8>(m_command), ci.name);
if (m_param_fifo.GetSize() < ci.expected_parameters)
{
Log_WarningPrintf("Too few parameters for command 0x%02X (%s), expecting %u got %u", static_cast<u8>(m_command),
ci.name, ci.expected_parameters, m_param_fifo.GetSize());
SendErrorResponse(STAT_ERROR, ERROR_REASON_INCORRECT_NUMBER_OF_PARAMETERS);
EndCommand();
return;
}
if (!m_response_fifo.IsEmpty()) if (!m_response_fifo.IsEmpty())
{ {
@ -706,7 +979,6 @@ void CDROM::ExecuteCommand()
case Command::Setloc: case Command::Setloc:
{ {
// TODO: Verify parameter count
m_setloc_position.minute = PackedBCDToBinary(m_param_fifo.Peek(0)); m_setloc_position.minute = PackedBCDToBinary(m_param_fifo.Peek(0));
m_setloc_position.second = PackedBCDToBinary(m_param_fifo.Peek(1)); m_setloc_position.second = PackedBCDToBinary(m_param_fifo.Peek(1));
m_setloc_position.frame = PackedBCDToBinary(m_param_fifo.Peek(2)); m_setloc_position.frame = PackedBCDToBinary(m_param_fifo.Peek(2));
@ -739,7 +1011,7 @@ void CDROM::ExecuteCommand()
case Command::SetSession: case Command::SetSession:
{ {
const u8 session = m_param_fifo.IsEmpty() ? 0 : m_param_fifo.Peek(0); const u8 session = m_param_fifo.Peek(0);
Log_DebugPrintf("CDROM SetSession command, session=%u", session); Log_DebugPrintf("CDROM SetSession command, session=%u", session);
if (!CanReadMedia() || m_drive_state == DriveState::Reading || m_drive_state == DriveState::Playing) if (!CanReadMedia() || m_drive_state == DriveState::Reading || m_drive_state == DriveState::Playing)
@ -829,7 +1101,7 @@ void CDROM::ExecuteCommand()
if (m_secondary_status.seeking) if (m_secondary_status.seeking)
{ {
Log_WarningPrintf("CDROM Pause command while seeking - sending error response"); Log_WarningPrintf("CDROM Pause command while seeking - sending error response");
SendErrorResponse(STAT_ERROR, ERROR_NOT_READY); SendErrorResponse(STAT_ERROR, ERROR_REASON_NOT_READY);
EndCommand(); EndCommand();
return; return;
} }
@ -937,7 +1209,7 @@ void CDROM::ExecuteCommand()
if (!CanReadMedia()) if (!CanReadMedia())
{ {
Log_DebugPrintf("CDROM GetlocP command - not ready"); Log_DebugPrintf("CDROM GetlocP command - not ready");
SendErrorResponse(STAT_ERROR, ERROR_NOT_READY); SendErrorResponse(STAT_ERROR, ERROR_REASON_NOT_READY);
} }
else else
{ {

8
src/core/cdrom.h
View file

@ -152,10 +152,10 @@ private:
enum ErrorReason : u8 enum ErrorReason : u8
{ {
ERROR_INVALID_ARGUMENT = 0x10, ERROR_REASON_INVALID_ARGUMENT = 0x10,
ERROR_INCORRECT_NUMBER_OF_PARAMETERS = 0x20, ERROR_REASON_INCORRECT_NUMBER_OF_PARAMETERS = 0x20,
ERROR_INVALID_COMMAND = 0x40, ERROR_REASON_INVALID_COMMAND = 0x40,
ERROR_NOT_READY = 0x80 ERROR_REASON_NOT_READY = 0x80
}; };
union SecondaryStatusRegister union SecondaryStatusRegister