nkeynes@709: /**
nkeynes@709:  * $Id$
nkeynes@709:  *
nkeynes@709:  * OSX native cd-rom driver.
nkeynes@709:  *
nkeynes@709:  * Copyright (c) 2005 Nathan Keynes.
nkeynes@709:  *
nkeynes@709:  * This program is free software; you can redistribute it and/or modify
nkeynes@709:  * it under the terms of the GNU General Public License as published by
nkeynes@709:  * the Free Software Foundation; either version 2 of the License, or
nkeynes@709:  * (at your option) any later version.
nkeynes@709:  *
nkeynes@709:  * This program is distributed in the hope that it will be useful,
nkeynes@709:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
nkeynes@709:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
nkeynes@709:  * GNU General Public License for more details.
nkeynes@709:  */
nkeynes@709: 
nkeynes@709: #include <IOKit/IOKitLib.h>
nkeynes@720: #include <IOKit/IOBSD.h>
nkeynes@709: #include <IOKit/storage/IOStorageDeviceCharacteristics.h>
nkeynes@720: #include <IOKit/storage/IOCDMediaBSDClient.h>
nkeynes@720: #include <IOKit/storage/IOCDTypes.h>
nkeynes@720: #include <sys/param.h>
nkeynes@720: #include <errno.h>
nkeynes@709: #include <stdio.h>
nkeynes@720: #include <string.h>
nkeynes@720: #include <paths.h>
nkeynes@709: #include "gdrom/gddriver.h"
nkeynes@720: #include "gdrom/packet.h"
nkeynes@720: #include "drivers/osx_iokit.h"
nkeynes@709: 
nkeynes@720: #define MAXTOCENTRIES 600  /* This is a fairly generous overestimate really */
nkeynes@720: #define MAXTOCSIZE 4 + (MAXTOCENTRIES*11)
nkeynes@720: 
nkeynes@720: static gboolean cdrom_osx_image_is_valid( FILE *f );
nkeynes@720: static gdrom_disc_t cdrom_osx_open_device( const gchar *filename, FILE *f );
nkeynes@720: static gdrom_error_t cdrom_osx_read_toc( gdrom_image_t disc );
nkeynes@720: static gdrom_error_t cdrom_osx_read_sector( gdrom_disc_t disc, uint32_t sector,
nkeynes@736:                                             int mode, unsigned char *buf, uint32_t *length );
nkeynes@709: 
nkeynes@709: struct gdrom_image_class cdrom_device_class = { "osx", NULL,
nkeynes@736:         cdrom_osx_image_is_valid, cdrom_osx_open_device };
nkeynes@709: 
nkeynes@720: #define OSX_DRIVE(disc) ( (osx_cdrom_drive_t)(((gdrom_image_t)disc)->private) )
nkeynes@709: 
nkeynes@720: static void cdrom_osx_destroy( gdrom_disc_t disc )
nkeynes@709: {
nkeynes@720:     osx_cdrom_close_drive( OSX_DRIVE(disc) );
nkeynes@720:     gdrom_image_destroy_no_close( disc );
nkeynes@709: }
nkeynes@709: 
nkeynes@720: static void cdrom_osx_media_changed( osx_cdrom_drive_t drive, gboolean present,
nkeynes@720:                                      void *user_data )
nkeynes@709: {
nkeynes@720:     gdrom_image_t image = (gdrom_image_t)user_data;
nkeynes@720:     if( present ) {
nkeynes@720:         cdrom_osx_read_toc( image );
nkeynes@720:     } else {
nkeynes@720:         image->disc_type = IDE_DISC_NONE;
nkeynes@720:         image->track_count = 0;        
nkeynes@709:     }
nkeynes@709: }
nkeynes@709: 
nkeynes@720: 
nkeynes@720: static gdrom_disc_t cdrom_osx_new( const char *name, osx_cdrom_drive_t drive )
nkeynes@709: {
nkeynes@720:     char tmp[strlen(name)+7];
nkeynes@720:     sprintf( tmp, "dvd://%s", name );
nkeynes@720:     gdrom_image_t image = (gdrom_image_t)gdrom_image_new(tmp, NULL);
nkeynes@720:     image->private = drive;
nkeynes@736: 
nkeynes@720:     image->disc.read_sector = cdrom_osx_read_sector;
nkeynes@720:     image->disc.close = cdrom_osx_destroy;
nkeynes@720:     cdrom_osx_read_toc(image);
nkeynes@720:     osx_cdrom_set_media_changed_callback( drive, cdrom_osx_media_changed, image );
nkeynes@720:     return (gdrom_disc_t)image;
nkeynes@709: }
nkeynes@709: 
nkeynes@720: gdrom_disc_t cdrom_open_device( const gchar *method, const gchar *path )
nkeynes@709: {
nkeynes@720:     gdrom_disc_t result = NULL;
nkeynes@736: 
nkeynes@720:     osx_cdrom_drive_t drive = osx_cdrom_open_drive(path);
nkeynes@720:     if( drive == NULL ) {
nkeynes@709:         return NULL;
nkeynes@720:     } else {
nkeynes@720:         return cdrom_osx_new( path, drive );
nkeynes@709:     }
nkeynes@709: }
nkeynes@709: 
nkeynes@720: 
nkeynes@720: 
nkeynes@720: static gboolean cdrom_enum_callback( io_object_t object, char *vendor, char *product, char *iopath, void *ptr )
nkeynes@709: {
nkeynes@709:     GList **list = (GList **)ptr;
nkeynes@720:     char tmp1[sizeof(io_string_t) + 6];
nkeynes@709:     char tmp2[512];
nkeynes@720:     snprintf( tmp1, sizeof(tmp1), "dvd://%s", iopath );
nkeynes@709:     snprintf( tmp2, sizeof(tmp2), "%s %s", vendor, product );
nkeynes@709:     *list = g_list_append( *list, gdrom_device_new( tmp1, tmp2 ) );
nkeynes@709:     return FALSE;
nkeynes@709: }
nkeynes@709: 
nkeynes@709: GList *cdrom_get_native_devices(void)
nkeynes@709: {
nkeynes@709:     GList *list = NULL;
nkeynes@720:     find_cdrom_drive(cdrom_enum_callback, &list);
nkeynes@736: 
nkeynes@720:     osx_register_iokit_notifications();
nkeynes@709:     return list;
nkeynes@709: }
nkeynes@709: 
nkeynes@709: 
nkeynes@709: 
nkeynes@720: static gboolean cdrom_osx_image_is_valid( FILE *f )
nkeynes@709: {
nkeynes@709:     return FALSE;
nkeynes@709: }
nkeynes@709: 
nkeynes@720: static gdrom_disc_t cdrom_osx_open_device( const gchar *filename, FILE *f )
nkeynes@709: {
nkeynes@709:     return NULL;
nkeynes@709: }
nkeynes@720: 
nkeynes@720: static gdrom_error_t cdrom_osx_read_toc( gdrom_image_t image )
nkeynes@720: {
nkeynes@720:     osx_cdrom_drive_t drive = OSX_DRIVE(image);
nkeynes@736: 
nkeynes@720:     int fh = osx_cdrom_get_media_handle(drive);
nkeynes@720:     if( fh == -1 ) {
nkeynes@720:         image->disc_type = IDE_DISC_NONE;
nkeynes@720:         image->track_count = 0;
nkeynes@720:         return -1;
nkeynes@720:     } else {
nkeynes@720:         unsigned char buf[MAXTOCSIZE];
nkeynes@720:         dk_cd_read_toc_t readtoc;
nkeynes@720:         memset( &readtoc, 0, sizeof(readtoc) );
nkeynes@720:         readtoc.format = 2;
nkeynes@720:         readtoc.formatAsTime = 0;
nkeynes@720:         readtoc.address.session = 0;
nkeynes@720:         readtoc.bufferLength = sizeof(buf);
nkeynes@720:         readtoc.buffer = buf;
nkeynes@736: 
nkeynes@720:         if( ioctl(fh, DKIOCCDREADTOC, &readtoc ) == -1 ) {
nkeynes@720:             image->disc_type = IDE_DISC_NONE;
nkeynes@720:             image->track_count = 0;
nkeynes@720:             return -1;
nkeynes@720:         } else {
nkeynes@720:             mmc_parse_toc2( image, buf );
nkeynes@720:         }
nkeynes@720:     }
nkeynes@720:     return 0;
nkeynes@720: }
nkeynes@720: 
nkeynes@720: static gdrom_error_t cdrom_osx_read_sector( gdrom_disc_t disc, uint32_t sector,
nkeynes@736:                                             int mode, unsigned char *buf, uint32_t *length ) 
nkeynes@720: {
nkeynes@720:     osx_cdrom_drive_t drive = OSX_DRIVE(disc);
nkeynes@720:     int fh = osx_cdrom_get_media_handle(drive);
nkeynes@720:     if( fh == -1 ) {
nkeynes@720:         return PKT_ERR_NODISC;
nkeynes@720:     } else {
nkeynes@720:         dk_cd_read_t readcd;
nkeynes@720: 
nkeynes@720:         memset( &readcd, 0, sizeof(readcd) );
nkeynes@720:         // This is complicated by needing to know the exact read size. Gah.
nkeynes@720:         if( READ_CD_RAW(mode) ) {
nkeynes@720:             *length = 2352;
nkeynes@720:             readcd.sectorArea = 0xF8; 
nkeynes@720:         } else {
nkeynes@720:             // This is incomplete...
nkeynes@720:             if( READ_CD_DATA(mode) ) {
nkeynes@720:                 readcd.sectorArea = kCDSectorAreaUser;
nkeynes@720:                 switch( READ_CD_MODE(mode) ) {
nkeynes@720:                 case READ_CD_MODE_CDDA:
nkeynes@720:                     *length = 2352;
nkeynes@720:                     break;
nkeynes@720:                 case READ_CD_MODE_1:
nkeynes@720:                 case READ_CD_MODE_2_FORM_1:
nkeynes@720:                     *length = 2048;
nkeynes@720:                     break;
nkeynes@720:                 case READ_CD_MODE_2:
nkeynes@720:                     *length = 2336;
nkeynes@720:                     break;
nkeynes@720:                 case READ_CD_MODE_2_FORM_2:
nkeynes@720:                     *length = 2324;
nkeynes@720:                     break;
nkeynes@720:                 }
nkeynes@720:             }
nkeynes@720:         }
nkeynes@736: 
nkeynes@720:         readcd.offset = *length * (sector - 150);
nkeynes@720:         readcd.sectorType = READ_CD_MODE(mode)>>1;
nkeynes@720:         readcd.bufferLength = *length;
nkeynes@720:         readcd.buffer = buf;
nkeynes@720:         if( ioctl( fh, DKIOCCDREAD, &readcd ) == -1 ) {
nkeynes@720:             return -1;
nkeynes@720:         } else {
nkeynes@720:             return 0;
nkeynes@720:         }
nkeynes@720:     }
nkeynes@720: }
nkeynes@720: