378 lines
11 KiB
C
378 lines
11 KiB
C
/*
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$Id: win32ioctl.c,v 1.3 2004/02/05 03:02:16 rocky Exp $
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Copyright (C) 2004 Rocky Bernstein <rocky@panix.com>
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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 as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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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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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/* This file contains Win32-specific code using the DeviceIoControl
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access method.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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static const char _rcsid[] = "$Id: win32ioctl.c,v 1.3 2004/02/05 03:02:16 rocky Exp $";
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#include <cdio/cdio.h>
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#include <cdio/sector.h>
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#include "cdio_assert.h"
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#ifdef HAVE_WIN32_CDROM
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#include <windows.h>
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#include <winioctl.h>
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#include <stdio.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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/* Win32 DeviceIoControl specifics */
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/***** FIXME: #include ntddcdrm.h from Wine, but probably need to
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modify it a little.
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*/
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#ifndef IOCTL_CDROM_BASE
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# define IOCTL_CDROM_BASE FILE_DEVICE_CD_ROM
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#endif
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#ifndef IOCTL_CDROM_RAW_READ
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#define IOCTL_CDROM_RAW_READ CTL_CODE(IOCTL_CDROM_BASE, 0x000F, \
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METHOD_OUT_DIRECT, FILE_READ_ACCESS)
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#endif
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#ifndef IOCTL_CDROM_BASE
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# define IOCTL_CDROM_BASE FILE_DEVICE_CD_ROM
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#endif
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#ifndef IOCTL_CDROM_READ_TOC
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# define IOCTL_CDROM_READ_TOC CTL_CODE(IOCTL_CDROM_BASE, 0x0000, \
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METHOD_BUFFERED, FILE_READ_ACCESS)
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#endif
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#ifndef IOCTL_CDROM_RAW_READ
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#define IOCTL_CDROM_RAW_READ CTL_CODE(IOCTL_CDROM_BASE, 0x000F, \
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METHOD_OUT_DIRECT, FILE_READ_ACCESS)
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#endif
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#ifndef IOCTL_CDROM_READ_Q_CHANNEL
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#define IOCTL_CDROM_READ_Q_CHANNEL CTL_CODE(IOCTL_CDROM_BASE, 0x000B, METHOD_BUFFERED, FILE_READ_ACCESS)
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#endif
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typedef struct _TRACK_DATA {
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UCHAR Format;
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UCHAR Control : 4;
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UCHAR Adr : 4;
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UCHAR TrackNumber;
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UCHAR Reserved1;
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UCHAR Address[4];
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} TRACK_DATA, *PTRACK_DATA;
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typedef struct _CDROM_TOC {
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UCHAR Length[2];
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UCHAR FirstTrack;
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UCHAR LastTrack;
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TRACK_DATA TrackData[CDIO_CD_MAX_TRACKS+1];
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} CDROM_TOC, *PCDROM_TOC;
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#define IOCTL_CDROM_SUB_Q_CHANNEL 0x00
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#define IOCTL_CDROM_CURRENT_POSITION 0x01
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#define IOCTL_CDROM_MEDIA_CATALOG 0x02
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#define IOCTL_CDROM_TRACK_ISRC 0x03
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typedef enum _TRACK_MODE_TYPE {
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YellowMode2,
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XAForm2,
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CDDA
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} TRACK_MODE_TYPE, *PTRACK_MODE_TYPE;
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typedef struct __RAW_READ_INFO {
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LARGE_INTEGER DiskOffset;
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ULONG SectorCount;
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TRACK_MODE_TYPE TrackMode;
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} RAW_READ_INFO, *PRAW_READ_INFO;
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typedef struct _CDROM_SUB_Q_DATA_FORMAT {
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UCHAR Format;
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UCHAR Track;
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} CDROM_SUB_Q_DATA_FORMAT, *PCDROM_SUB_Q_DATA_FORMAT;
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typedef struct _SUB_Q_HEADER {
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UCHAR Reserved;
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UCHAR AudioStatus;
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UCHAR DataLength[2];
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} SUB_Q_HEADER, *PSUB_Q_HEADER;
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typedef struct _SUB_Q_MEDIA_CATALOG_NUMBER {
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SUB_Q_HEADER Header;
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UCHAR FormatCode;
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UCHAR Reserved[3];
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UCHAR Reserved1 : 7;
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UCHAR Mcval :1;
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UCHAR MediaCatalog[15];
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} SUB_Q_MEDIA_CATALOG_NUMBER, *PSUB_Q_MEDIA_CATALOG_NUMBER;
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#include "_cdio_win32.h"
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const char *
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win32ioctl_is_cdrom(const char drive_letter)
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{
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static char psz_win32_drive[7];
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static char root_path_name[8];
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_img_private_t env;
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/* Initializations */
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env.h_device_handle = NULL;
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env.i_sid = 0;
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env.hASPI = 0;
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env.lpSendCommand = 0;
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sprintf( psz_win32_drive, "\\\\.\\%c:", drive_letter );
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sprintf( root_path_name, "\\\\.\\%c:\\", drive_letter );
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env.h_device_handle = CreateFile( psz_win32_drive, GENERIC_READ,
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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NULL, OPEN_EXISTING,
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FILE_FLAG_NO_BUFFERING |
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FILE_FLAG_RANDOM_ACCESS, NULL );
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if (env.h_device_handle != NULL
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&& (DRIVE_CDROM == GetDriveType(root_path_name))) {
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CloseHandle(env.h_device_handle);
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return strdup(psz_win32_drive);
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} else {
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CloseHandle(env.h_device_handle);
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return NULL;
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}
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}
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/*!
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Reads an audio device using the DeviceIoControl method into data
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starting from lsn. Returns 0 if no error.
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*/
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int
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win32ioctl_read_audio_sectors (_img_private_t *env, void *data, lsn_t lsn,
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unsigned int nblocks)
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{
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DWORD dwBytesReturned;
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RAW_READ_INFO cdrom_raw;
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/* Initialize CDROM_RAW_READ structure */
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cdrom_raw.DiskOffset.QuadPart = CDIO_CD_FRAMESIZE_RAW * lsn;
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cdrom_raw.SectorCount = nblocks;
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cdrom_raw.TrackMode = CDDA;
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if( DeviceIoControl( env->h_device_handle,
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IOCTL_CDROM_RAW_READ, &cdrom_raw,
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sizeof(RAW_READ_INFO), data,
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CDIO_CD_FRAMESIZE_RAW * nblocks,
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&dwBytesReturned, NULL ) == 0 ) {
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cdio_info("Error reading audio-mode %lu (%ld)\n", lsn, GetLastError());
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return 1;
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}
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return 0;
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}
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/*!
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Reads a single mode2 sector using the DeviceIoControl method into
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data starting from lsn. Returns 0 if no error.
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*/
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int
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win32ioctl_read_mode2_sector (_img_private_t *env, void *data, lsn_t lsn,
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bool mode2_form2)
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{
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char buf[CDIO_CD_FRAMESIZE_RAW] = { 0, };
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DWORD dwBytesReturned;
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RAW_READ_INFO cdrom_raw;
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/* Initialize CDROM_RAW_READ structure */
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cdrom_raw.DiskOffset.QuadPart = CDIO_CD_FRAMESIZE * lsn;
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cdrom_raw.SectorCount = 1;
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cdrom_raw.TrackMode = mode2_form2 ? XAForm2 : YellowMode2;
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if( DeviceIoControl( env->h_device_handle,
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IOCTL_CDROM_RAW_READ, &cdrom_raw,
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sizeof(RAW_READ_INFO), buf,
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sizeof(buf), &dwBytesReturned, NULL )
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== 0 ) {
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/* Retry in Yellowmode2 */
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if (mode2_form2) {
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cdio_debug("Retrying mode2 request as mode1");
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cdrom_raw.TrackMode = YellowMode2;
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} else {
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cdio_debug("Retrying mode1 request as mode2");
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cdrom_raw.TrackMode = XAForm2;
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}
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if( DeviceIoControl( env->h_device_handle,
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IOCTL_CDROM_RAW_READ, &cdrom_raw,
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sizeof(RAW_READ_INFO), buf,
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sizeof(buf), &dwBytesReturned, NULL )
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== 0 ) {
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cdio_debug("Last-ditch effort reading as CDDA");
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cdrom_raw.TrackMode = CDDA;
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if( DeviceIoControl( env->h_device_handle,
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IOCTL_CDROM_RAW_READ, &cdrom_raw,
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sizeof(RAW_READ_INFO), buf,
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sizeof(buf), &dwBytesReturned, NULL )
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== 0 ) {
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cdio_info("Error reading %lu (%ld)\n", lsn, GetLastError());
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return 1;
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}
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}
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}
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if (mode2_form2)
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memcpy (data, buf, M2RAW_SECTOR_SIZE);
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else
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memcpy (((char *)data), buf + CDIO_CD_SUBHEADER_SIZE, CDIO_CD_FRAMESIZE);
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return 0;
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}
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/*!
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Initialize internal structures for CD device.
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*/
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bool
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win32ioctl_init_win32 (_img_private_t *env)
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{
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char psz_win32_drive[7];
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unsigned int len=strlen(env->gen.source_name);
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OSVERSIONINFO ov;
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DWORD dwFlags;
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cdio_debug("using winNT/2K/XP ioctl layer");
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memset(&ov,0,sizeof(OSVERSIONINFO));
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ov.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
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GetVersionEx(&ov);
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if((ov.dwPlatformId==VER_PLATFORM_WIN32_NT) &&
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(ov.dwMajorVersion>4))
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dwFlags = GENERIC_READ|GENERIC_WRITE; /* add gen write on W2k/XP */
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else dwFlags = GENERIC_READ;
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if (cdio_is_device_win32(env->gen.source_name)) {
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sprintf( psz_win32_drive, "\\\\.\\%c:", env->gen.source_name[len-2] );
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env->h_device_handle = CreateFile( psz_win32_drive, dwFlags,
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FILE_SHARE_READ, NULL, OPEN_EXISTING,
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0, NULL );
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if( env->h_device_handle == INVALID_HANDLE_VALUE )
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{
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/* No good. try toggle write. */
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dwFlags ^= GENERIC_WRITE;
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env->h_device_handle = CreateFile( psz_win32_drive, dwFlags,
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FILE_SHARE_READ, NULL,
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OPEN_EXISTING, 0, NULL );
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return (env->h_device_handle == NULL) ? false : true;
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}
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return true;
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}
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return false;
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}
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#define MSF_TO_LBA2(min, sec, frame) \
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((int) frame + CDIO_CD_FRAMES_PER_SEC * (CDIO_CD_SECS_PER_MIN*min + sec) \
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- CDIO_PREGAP_SECTORS )
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/*!
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Read and cache the CD's Track Table of Contents and track info.
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Return true if successful or false if an error.
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*/
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bool
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win32ioctl_read_toc (_img_private_t *env)
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{
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DWORD dwBytesReturned;
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CDROM_TOC cdrom_toc;
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int i;
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if( DeviceIoControl( env->h_device_handle,
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IOCTL_CDROM_READ_TOC,
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NULL, 0, &cdrom_toc, sizeof(CDROM_TOC),
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&dwBytesReturned, NULL ) == 0 ) {
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cdio_warn( "could not read TOCHDR: %ld" , (long int) GetLastError());
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return false;
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}
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env->first_track_num = cdrom_toc.FirstTrack;
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env->total_tracks = cdrom_toc.LastTrack - cdrom_toc.FirstTrack + 1;
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for( i = 0 ; i <= env->total_tracks ; i++ ) {
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env->tocent[ i ].start_lsn = MSF_TO_LBA2(
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cdrom_toc.TrackData[i].Address[1],
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cdrom_toc.TrackData[i].Address[2],
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cdrom_toc.TrackData[i].Address[3] );
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env->tocent[ i ].Control = cdrom_toc.TrackData[i].Control;
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env->tocent[ i ].Format = cdrom_toc.TrackData[i].Format;
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cdio_debug("p_sectors: %i, %lu", i,
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(unsigned long int) (env->tocent[i].start_lsn));
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}
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env->gen.toc_init = true;
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return true;
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}
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/*!
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Return the media catalog number MCN.
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Note: string is malloc'd so caller should free() then returned
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string when done with it.
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*/
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char *
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win32ioctl_get_mcn (_img_private_t *env) {
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DWORD dwBytesReturned;
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SUB_Q_MEDIA_CATALOG_NUMBER mcn;
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CDROM_SUB_Q_DATA_FORMAT q_data_format;
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memset( &mcn, 0, sizeof(mcn) );
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q_data_format.Format = IOCTL_CDROM_MEDIA_CATALOG;
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q_data_format.Track=1;
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if( DeviceIoControl( env->h_device_handle,
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IOCTL_CDROM_READ_Q_CHANNEL,
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&q_data_format, sizeof(q_data_format),
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&mcn, sizeof(mcn),
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&dwBytesReturned, NULL ) == 0 ) {
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cdio_warn( "could not read Q Channel at track 1");
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} else if (mcn.Mcval)
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return strdup(mcn.MediaCatalog);
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return NULL;
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}
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/*!
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Get the format (XA, DATA, AUDIO) of a track.
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*/
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track_format_t
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win32ioctl_get_track_format(_img_private_t *env, track_t track_num)
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{
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/* This is pretty much copied from the "badly broken" cdrom_count_tracks
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in linux/cdrom.c.
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*/
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if (env->tocent[track_num-1].Control & 0x04) {
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if (env->tocent[track_num-1].Format == 0x10)
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return TRACK_FORMAT_CDI;
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else if (env->tocent[track_num-1].Format == 0x20)
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return TRACK_FORMAT_XA;
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else
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return TRACK_FORMAT_DATA;
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} else
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return TRACK_FORMAT_AUDIO;
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}
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#endif /*HAVE_WIN32_CDROM*/
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