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dpavlin |
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/* |
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* PearPC |
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* syscdrom.cc |
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* |
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* Copyright (C) 2003 Sebastian Biallas (sb@biallas.net) |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*/ |
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#define WIN32_LEAN_AND_MEAN |
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#include <windows.h> |
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#include <windowsx.h> |
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#ifdef FASTCALL |
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#undef FASTCALL |
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#endif |
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#include <cstdio> |
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#include <cstring> |
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#include "errno.h" |
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#include "debug/tracers.h" |
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#include "tools/data.h" |
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#include "io/ide/cd.h" |
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#include "aspi-win32.h" |
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#include "scsipt.h" |
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#include "scsitypes.h" |
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#define SCSI_CMD_DIR_IN 1 |
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#define SCSI_CMD_DIR_OUT 2 |
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/// SPTI CD-ROM implementation |
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class CDROMDeviceSPTI:public CDROMDeviceSCSI |
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{ |
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private: |
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// HANDLE to device |
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HANDLE device; |
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/// Opens a drive device |
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/// @author Alexander Stockinger |
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/// @date 07/18/2004 |
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/// @param letter The drive letter of the drive to open |
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/// @return A file handle to the device |
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static HANDLE OpenDevice(char letter) |
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{ |
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// Generate the device name |
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char fname[16]; |
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ht_snprintf(fname, sizeof fname, "\\\\.\\%c:", letter); |
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// Handle access (different on NT / 2K / XP) |
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OSVERSIONINFO ver; |
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memset(&ver, 0, sizeof(ver)); |
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ver.dwOSVersionInfoSize = sizeof(ver); |
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GetVersionEx(&ver); |
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DWORD flags = GENERIC_READ; |
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if (ver.dwPlatformId == VER_PLATFORM_WIN32_NT |
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&& ver.dwMajorVersion > 4) |
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flags |= GENERIC_WRITE; |
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// Create the file handle |
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return CreateFile(fname, flags, FILE_SHARE_READ, NULL, |
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OPEN_EXISTING, 0, NULL); |
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} |
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protected: |
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/// SCSI command pass-through function |
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/// @author Alexander Stockinger |
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/// @date 07/18/2004 |
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/// @param command The SCSI command to be sent |
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/// @param dir The data direcion flags |
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/// @param params byte[11] array containing command dependent parameters |
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/// @param buffer Buffer for data exchange |
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/// @param buffer_len The size of buffer in bytes |
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/// @return If the call could be executed it returns the status from the device, else it returns 0xff |
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virtual byte SCSI_ExecCmd(byte command, byte dir, byte params[11], byte *buffer, unsigned int buffer_len) |
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{ |
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byte srb_dir; |
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if (dir & SCSI_CMD_DIR_IN) |
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srb_dir = SCSI_IOCTL_DATA_IN; |
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else if (dir & SCSI_CMD_DIR_OUT) |
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srb_dir = SCSI_IOCTL_DATA_OUT; |
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else |
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srb_dir = SCSI_IOCTL_DATA_UNSPECIFIED; |
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// Fill SPTDWB |
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SCSI_PASS_THROUGH_DIRECT_WITH_BUFFER swb; |
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memset(&swb, 0, sizeof(swb)); |
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swb.spt.Length = sizeof(SCSI_PASS_THROUGH); |
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swb.spt.DataTransferLength = buffer_len; |
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swb.spt.DataBuffer = buffer; |
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swb.spt.TimeOutValue = 5; |
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swb.spt.SenseInfoOffset = |
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offsetof(SCSI_PASS_THROUGH_DIRECT_WITH_BUFFER, |
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ucSenseBuf); |
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swb.spt.DataIn = srb_dir; |
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if (command < 0x20) { |
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swb.spt.CdbLength = 6; |
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} else if (command < 0xa0) { |
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swb.spt.CdbLength = 10; |
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} else { |
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swb.spt.CdbLength = 12; |
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} |
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swb.spt.Cdb[0] = command; |
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for (int i=1; i < swb.spt.CdbLength; i++) { |
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swb.spt.Cdb[i] = params[i-1]; |
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} |
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// Send cmd |
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ULONG ret; |
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BOOL status = DeviceIoControl(device, |
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IOCTL_SCSI_PASS_THROUGH_DIRECT, |
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&swb, |
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sizeof(swb), |
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&swb, |
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sizeof(swb), |
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&ret, |
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NULL); |
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// Done |
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if (!status) { |
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IO_IDE_WARN("SPTI: DeviceIoControl() returned error:\n"); |
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IO_IDE_WARN("command: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x:\n", |
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command, params[0], params[1], params[2], params[3], params[4], params[5], params[6], params[7], params[8], params[9]); |
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char buffer[256]; |
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FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, 0, |
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GetLastError(), 0, buffer, sizeof buffer, 0); |
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IO_IDE_WARN("%s\n", buffer); |
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return 0xff; |
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} |
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return swb.spt.ScsiStatus; |
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} |
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public: |
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/// Constructor |
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/// @author Alexander Stockinger |
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/// @date 07/17/2004 |
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/// @param name The name of the CDROM device |
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CDROMDeviceSPTI (const char *name):CDROMDeviceSCSI(name), |
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device(INVALID_HANDLE_VALUE) |
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{ |
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} |
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/// Destructor |
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/// @author Alexander Stockinger |
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/// @date 07/18/2004 |
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virtual ~CDROMDeviceSPTI() |
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{ |
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setLock(false); |
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if (device != INVALID_HANDLE_VALUE) |
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CloseHandle(device); |
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} |
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/// Sets the drive letter of the real CD drive |
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/// @author Alexander Stockinger |
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/// @date 07/18/2004 |
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/// @param name The drive letter, e.g. "e:" or "e:\" |
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/// @return A file handle to the device |
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void setDrive(const char *name) |
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{ |
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// Check parameter |
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size_t len = strlen(name); |
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if (len != 2 && len != 3) |
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IO_IDE_ERR("SPTI: Invalid drive name '%s'\n", name); |
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if (name[1] != ':') |
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IO_IDE_ERR("SPTI: Invalid drive name '%s'\n", name); |
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if (len == 3 && name[2] != '\\') |
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IO_IDE_ERR("SPTI: Invalid drive name '%s'\n", name); |
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char letter = name[0]; |
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if (letter >= 'a' && letter <= 'z') |
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letter -= ('a' - 'A'); |
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if (letter < 'A' || letter > 'Z') |
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IO_IDE_ERR("SPTI: Invalid drive '%c:'\n", letter); |
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// Open the device |
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device = OpenDevice(letter); |
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if (device == INVALID_HANDLE_VALUE) |
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IO_IDE_ERR("SPTI: Cannot open drive '%c:'\n", letter); |
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} |
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}; |
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/// ASPI CD-ROM implementation |
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class CDROMDeviceASPI:public CDROMDeviceSCSI |
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{ |
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private: |
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/// Module handle to ASPI DLL |
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HMODULE hASPI; |
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/// SCSI host adapter ID |
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unsigned int a; |
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/// SCSI target ID |
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unsigned int t; |
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/// SCSI lun ID |
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unsigned int l; |
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protected: |
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/// SCSI command pass-trough function |
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/// @author Alexander Stockinger |
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/// @date 07/17/2004 |
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/// @param command The SCSI command to be sent |
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/// @param dir The data direcion flags |
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/// @param params byte[8] array containing command dependent parameters |
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/// @param buffer Buffer for data exchange |
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/// @param buffer_len The size of buffer in bytes |
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/// @return If the call could be executed it returns the status from the device, else it returns 0xff |
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virtual byte SCSI_ExecCmd(byte command, byte dir, byte params[8], |
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byte *buffer, unsigned int buffer_len) |
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{ |
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byte srb_dir; |
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if (dir & SCSI_CMD_DIR_IN) |
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srb_dir = SRB_DIR_IN; |
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else if (dir & SCSI_CMD_DIR_OUT) |
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srb_dir = SRB_DIR_OUT; |
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else |
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srb_dir = 0; |
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// Create event |
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HANDLE event = CreateEvent(NULL, TRUE, FALSE, NULL); |
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ResetEvent(event); |
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// Prepare SRB |
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SRB_ExecSCSICmd cmd; |
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memset(&cmd, 0, sizeof(cmd)); |
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cmd.SRB_Cmd = SC_EXEC_SCSI_CMD; |
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cmd.SRB_HaId = a; |
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cmd.SRB_Target = t; |
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cmd.SRB_Lun = l; |
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cmd.SRB_Flags = srb_dir | SRB_EVENT_NOTIFY; |
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cmd.SRB_SenseLen = SENSE_LEN; |
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cmd.SRB_PostProc = event; |
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cmd.SRB_BufPointer = buffer; |
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cmd.SRB_BufLen = buffer_len; |
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cmd.SRB_CDBLen = 10; |
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cmd.CDBByte[0] = command; |
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cmd.CDBByte[1] = params[0]; |
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cmd.CDBByte[2] = params[1]; |
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cmd.CDBByte[3] = params[2]; |
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cmd.CDBByte[4] = params[3]; |
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cmd.CDBByte[5] = params[4]; |
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cmd.CDBByte[6] = params[5]; |
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cmd.CDBByte[7] = params[6]; |
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cmd.CDBByte[8] = params[7]; |
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// Send cmd and wait for event |
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DWORD status = SendASPI32Command((LPSRB) & cmd); |
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if (status == SS_PENDING) |
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WaitForSingleObject(event, 100000); |
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// Clean up |
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CloseHandle(event); |
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// Check error conditions |
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if (status != SS_COMP && status != SS_PENDING) |
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return 0xff; |
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// Return error code |
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return cmd.SRB_TargStat; |
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} |
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public: |
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/// Constructor |
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/// @author Alexander Stockinger |
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/// @date 07/13/2004 |
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/// @param name The name of the CDROM device |
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CDROMDeviceASPI(const char *name):CDROMDeviceSCSI(name) |
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{ |
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// See if ASPI is available |
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hASPI = (HMODULE) LoadLibrary("wnaspi32.dll"); |
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if (hASPI == INVALID_HANDLE_VALUE || hASPI == 0) |
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IO_IDE_ERR("No ASPI support (Could not load wnaspi32.dll).\n"); |
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// Load ASPI function addresses |
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SendASPI32Command = |
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(DWORD(*)(LPSRB)) GetProcAddress(hASPI, |
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"SendASPI32Command"); |
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GetASPI32DLLVersion = |
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(DWORD(*)(void)) GetProcAddress(hASPI, |
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"GetASPI32DLLVersion"); |
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GetASPI32SupportInfo = |
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(DWORD(*)(void)) GetProcAddress(hASPI, |
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"GetASPI32SupportInfo"); |
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if (!SendASPI32Command || !GetASPI32DLLVersion |
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|| !GetASPI32SupportInfo) |
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IO_IDE_ERR("Error loading wnaspi32.dll\n"); |
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// Make sure the init function is being called |
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GetASPI32SupportInfo(); |
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} |
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/// Destructor |
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/// @author Alexander Stockinger |
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/// @date 07/13/2004 |
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virtual ~CDROMDeviceASPI() |
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{ |
| 321 |
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setLock(false); |
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if (hASPI != INVALID_HANDLE_VALUE) |
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FreeLibrary(hASPI); |
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} |
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/// Checks if the ASPI device is a CD drive |
| 327 |
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/// @author Alexander Stockinger |
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/// @date 07/17/2004 |
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/// @return true if the specified device is CD drive, else false |
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bool ASPI_IsDeviceCDROM() |
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{ |
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// Get adapter cound |
| 333 |
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const DWORD info = GetASPI32SupportInfo(); |
| 334 |
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const byte adapter_count LOBYTE(LOWORD(info)); |
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| 336 |
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// Make sure the host adapter exists |
| 337 |
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if (a >= adapter_count) |
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return false; |
| 339 |
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| 340 |
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// Get device type |
| 341 |
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SRB_GDEVBlock desc; |
| 342 |
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| 343 |
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memset(&desc, 0, sizeof(desc)); |
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desc.SRB_Cmd = SC_GET_DEV_TYPE; |
| 345 |
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desc.SRB_HaId = a; |
| 346 |
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desc.SRB_Target = t; |
| 347 |
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desc.SRB_Lun = l; |
| 348 |
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SendASPI32Command((LPSRB) & desc); |
| 349 |
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| 350 |
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// False on errors |
| 351 |
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if (desc.SRB_Status != SS_COMP) |
| 352 |
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return false; |
| 353 |
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| 354 |
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// Done |
| 355 |
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return desc.SRB_DeviceType == DTYPE_CDROM; |
| 356 |
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} |
| 357 |
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| 358 |
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/// Sets the SCSI target for the ASPI device |
| 359 |
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/// @author Alexander Stockinger |
| 360 |
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/// @date 07/13/2004 |
| 361 |
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/// @param name The SCSI device id in the form "a,t,l" |
| 362 |
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void setSCSITarget(const char *name) |
| 363 |
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{ |
| 364 |
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// Extract SCSI device info |
| 365 |
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char *spath = new char[strlen(name) + 1]; |
| 366 |
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| 367 |
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strcpy(spath, name); |
| 368 |
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char *scsi[3] = { spath, 0, 0 }; |
| 369 |
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int i = 0; |
| 370 |
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| 371 |
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for (char *c = spath; *c; c++) { |
| 372 |
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if (i == 3) |
| 373 |
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break; |
| 374 |
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if (*c == ',') { |
| 375 |
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i++; |
| 376 |
|
|
*c = 0; |
| 377 |
|
|
c++; |
| 378 |
|
|
scsi[i] = c; |
| 379 |
|
|
} |
| 380 |
|
|
} |
| 381 |
|
|
|
| 382 |
|
|
if (scsi[1] == 0 || scsi[2] == 0) |
| 383 |
|
|
IO_IDE_ERR("Invalid SCSI path: %s", name); |
| 384 |
|
|
|
| 385 |
|
|
a = atoi(scsi[0]); |
| 386 |
|
|
t = atoi(scsi[1]); |
| 387 |
|
|
l = atoi(scsi[2]); |
| 388 |
|
|
delete[]spath; |
| 389 |
|
|
|
| 390 |
|
|
// Check device type |
| 391 |
|
|
if (!ASPI_IsDeviceCDROM()) |
| 392 |
|
|
IO_IDE_WARN("SCSI device %d/%d/%d is not a CDROM drive.\n", |
| 393 |
|
|
a, t, l); |
| 394 |
|
|
|
| 395 |
|
|
// Set initial ready state |
| 396 |
|
|
isReady(); |
| 397 |
|
|
} |
| 398 |
|
|
}; |
| 399 |
|
|
|
| 400 |
|
|
/// Creates a native CDROM device |
| 401 |
|
|
/// @param device_name The PearPC internal device name for the drive |
| 402 |
|
|
/// @param image_name The image / device name to identify the real hardware |
| 403 |
|
|
/// @return On success a pointer to a CDROMDevice is returned, else NULL |
| 404 |
|
|
/// @author Alexander Stockinger |
| 405 |
|
|
/// @date 07/19/2004 |
| 406 |
|
|
CDROMDevice *createNativeCDROMDevice(const char *device_name, |
| 407 |
|
|
const char *image_name) |
| 408 |
|
|
{ |
| 409 |
|
|
if (strlen(image_name) < 2) |
| 410 |
|
|
return NULL; |
| 411 |
|
|
|
| 412 |
|
|
CDROMDevice *ret = NULL; |
| 413 |
|
|
|
| 414 |
|
|
if (image_name[1] == ':') { |
| 415 |
|
|
CDROMDeviceSPTI *spti = new CDROMDeviceSPTI(device_name); |
| 416 |
|
|
|
| 417 |
|
|
spti->setDrive(image_name); |
| 418 |
|
|
ret = spti; |
| 419 |
|
|
} else { |
| 420 |
|
|
CDROMDeviceASPI *aspi = new CDROMDeviceASPI(device_name); |
| 421 |
|
|
|
| 422 |
|
|
aspi->setSCSITarget(image_name); |
| 423 |
|
|
ret = aspi; |
| 424 |
|
|
} |
| 425 |
|
|
|
| 426 |
|
|
return ret; |
| 427 |
|
|
} |
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