nkeynes@1023 | 1 | /**
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nkeynes@1023 | 2 | * $Id$
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nkeynes@1023 | 3 | *
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nkeynes@1023 | 4 | * SCSI/MMC device interface (depends on lower-level SCSI transport)
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nkeynes@1023 | 5 | *
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nkeynes@1023 | 6 | * Copyright (c) 2009 Nathan Keynes.
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nkeynes@1023 | 7 | *
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nkeynes@1023 | 8 | * This program is free software; you can redistribute it and/or modify
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nkeynes@1023 | 9 | * it under the terms of the GNU General Public License as published by
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nkeynes@1023 | 10 | * the Free Software Foundation; either version 2 of the License, or
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nkeynes@1023 | 11 | * (at your option) any later version.
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nkeynes@1023 | 12 | *
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nkeynes@1023 | 13 | * This program is distributed in the hope that it will be useful,
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nkeynes@1023 | 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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nkeynes@1023 | 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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nkeynes@1023 | 16 | * GNU General Public License for more details.
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nkeynes@1023 | 17 | */
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nkeynes@1023 | 18 |
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nkeynes@1097 | 19 | #include <assert.h>
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nkeynes@1023 | 20 | #include <string.h>
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nkeynes@1296 | 21 | #include <glib.h>
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nkeynes@1023 | 22 | #include "lxdream.h"
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nkeynes@1023 | 23 | #include "gettext.h"
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nkeynes@1097 | 24 | #include "drivers/cdrom/cdimpl.h"
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nkeynes@1023 | 25 |
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nkeynes@1023 | 26 | #define MAXTOCENTRIES 600 /* This is a fairly generous overestimate really */
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nkeynes@1023 | 27 | #define MAXTOCSIZE 4 + (MAXTOCENTRIES*11)
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nkeynes@1023 | 28 | #define MAX_SECTORS_PER_CALL 1
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nkeynes@1023 | 29 |
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nkeynes@1023 | 30 | /**
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nkeynes@1097 | 31 | * Parse the TOC (format 2) into the cdrom_disc structure
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nkeynes@1023 | 32 | */
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nkeynes@1097 | 33 | void mmc_parse_toc2( cdrom_disc_t disc, unsigned char *buf )
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nkeynes@1023 | 34 | {
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nkeynes@1023 | 35 | int max_track = 0;
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nkeynes@1097 | 36 | int max_session = 0;
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nkeynes@1023 | 37 | int last_track = -1;
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nkeynes@1023 | 38 | int len = (buf[0] << 8) | buf[1];
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nkeynes@1023 | 39 | int session_type = -1;
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nkeynes@1023 | 40 | int i;
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nkeynes@1023 | 41 | for( i = 4; i<len; i+=11 ) {
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nkeynes@1023 | 42 | int session = buf[i];
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nkeynes@1023 | 43 | int adr = buf[i+1] >> 4;
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nkeynes@1023 | 44 | int point = buf[i+3];
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nkeynes@1023 | 45 | if( adr == 0x01 && point > 0 && point < 100 ) {
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nkeynes@1023 | 46 | /* Track info */
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nkeynes@1023 | 47 | int trackno = point-1;
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nkeynes@1023 | 48 | if( point > max_track ) {
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nkeynes@1023 | 49 | max_track = point;
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nkeynes@1023 | 50 | }
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nkeynes@1097 | 51 | if( session > max_session ) {
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nkeynes@1097 | 52 | max_session = session;
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nkeynes@1097 | 53 | }
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nkeynes@1097 | 54 | disc->track[trackno].trackno = point;
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nkeynes@1023 | 55 | disc->track[trackno].flags = (buf[i+1] & 0x0F) << 4;
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nkeynes@1097 | 56 | disc->track[trackno].sessionno = session;
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nkeynes@1023 | 57 | disc->track[trackno].lba = MSFTOLBA(buf[i+8],buf[i+9],buf[i+10]);
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nkeynes@1023 | 58 | last_track = trackno;
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nkeynes@1023 | 59 | } else switch( (adr << 8) | point ) {
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nkeynes@1023 | 60 | case 0x1A0: /* session info */
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nkeynes@1023 | 61 | if( buf[i+9] == 0x20 ) {
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nkeynes@1097 | 62 | session_type = CDROM_DISC_XA;
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nkeynes@1023 | 63 | } else {
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nkeynes@1097 | 64 | session_type = CDROM_DISC_NONXA;
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nkeynes@1023 | 65 | }
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nkeynes@1023 | 66 | disc->disc_type = session_type;
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nkeynes@1023 | 67 | break;
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nkeynes@1023 | 68 | case 0x1A2: /* leadout */
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nkeynes@1097 | 69 | disc->leadout = MSFTOLBA(buf[i+8], buf[i+9], buf[i+10]);
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nkeynes@1023 | 70 | break;
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nkeynes@1023 | 71 | }
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nkeynes@1023 | 72 | }
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nkeynes@1023 | 73 | disc->track_count = max_track;
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nkeynes@1097 | 74 | disc->session_count = max_session;
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nkeynes@1023 | 75 | }
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nkeynes@1023 | 76 |
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nkeynes@1023 | 77 |
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nkeynes@1097 | 78 | const char *mmc_parse_inquiry( unsigned char *buf )
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nkeynes@1097 | 79 | {
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nkeynes@1097 | 80 | char vendorid[9];
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nkeynes@1097 | 81 | char productid[17];
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nkeynes@1097 | 82 | char productrev[5];
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nkeynes@1097 | 83 | memcpy( vendorid, buf+8, 8 ); vendorid[8] = 0;
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nkeynes@1097 | 84 | memcpy( productid, buf+16, 16 ); productid[16] = 0;
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nkeynes@1097 | 85 | memcpy( productrev, buf+32, 4 ); productrev[4] = 0;
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nkeynes@1097 | 86 | return g_strdup_printf( "%.8s %.16s %.4s", g_strstrip(vendorid),
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nkeynes@1097 | 87 | g_strstrip(productid), g_strstrip(productrev) );
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nkeynes@1097 | 88 | }
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nkeynes@1097 | 89 |
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nkeynes@1023 | 90 | /**
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nkeynes@1023 | 91 | * Construct a drive indentification string based on the response to the
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nkeynes@1097 | 92 | * INQUIRY command. On success, returns the disc identification as a newly
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nkeynes@1097 | 93 | * allocated string, otherwise NULL.
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nkeynes@1023 | 94 | */
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nkeynes@1097 | 95 | const char *cdrom_disc_scsi_identify_drive( cdrom_disc_t disc )
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nkeynes@1023 | 96 | {
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nkeynes@1023 | 97 | unsigned char ident[256];
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nkeynes@1023 | 98 | uint32_t identlen = 256;
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nkeynes@1023 | 99 | char cmd[12] = {0x12,0,0,0, 0xFF,0,0,0, 0,0,0,0};
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nkeynes@1097 | 100 | cdrom_error_t status = SCSI_TRANSPORT(disc)->packet_read( disc, cmd, ident, &identlen );
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nkeynes@1097 | 101 | if( status == CDROM_ERROR_OK ) {
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nkeynes@1097 | 102 | return mmc_parse_inquiry(ident);
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nkeynes@1023 | 103 | }
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nkeynes@1097 | 104 | return NULL;
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nkeynes@1023 | 105 | }
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nkeynes@1023 | 106 |
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nkeynes@1023 | 107 |
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nkeynes@1097 | 108 | static cdrom_error_t cdrom_disc_scsi_read_sectors( sector_source_t source, cdrom_lba_t lba,
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nkeynes@1097 | 109 | cdrom_count_t count, cdrom_read_mode_t mode, unsigned char *buf, size_t *length )
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nkeynes@1023 | 110 | {
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nkeynes@1097 | 111 | assert( IS_SECTOR_SOURCE_TYPE(source,DISC_SECTOR_SOURCE) );
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nkeynes@1097 | 112 | cdrom_disc_t disc = (cdrom_disc_t)source;
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nkeynes@1097 | 113 | uint32_t sector_size = CDROM_MAX_SECTOR_SIZE;
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nkeynes@1023 | 114 | char cmd[12];
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nkeynes@1023 | 115 |
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nkeynes@1097 | 116 | cmd[0] = 0xBE;
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nkeynes@1097 | 117 | cmd[1] = CDROM_READ_TYPE(mode);
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nkeynes@1097 | 118 | cmd[2] = (lba >> 24) & 0xFF;
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nkeynes@1097 | 119 | cmd[3] = (lba >> 16) & 0xFF;
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nkeynes@1097 | 120 | cmd[4] = (lba >> 8) & 0xFF;
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nkeynes@1097 | 121 | cmd[5] = lba & 0xFF;
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nkeynes@1097 | 122 | cmd[6] = (count>>16) & 0xFF;
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nkeynes@1097 | 123 | cmd[7] = (count>>8) & 0xFF;
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nkeynes@1097 | 124 | cmd[8] = count & 0xFF;
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nkeynes@1097 | 125 | cmd[9] = CDROM_READ_FIELDS(mode)>>8;
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nkeynes@1097 | 126 | cmd[10]= 0;
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nkeynes@1097 | 127 | cmd[11]= 0;
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nkeynes@1023 | 128 |
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nkeynes@1097 | 129 | cdrom_error_t status = SCSI_TRANSPORT(disc)->packet_read( disc, cmd, buf, §or_size );
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nkeynes@1023 | 130 | if( status != 0 ) {
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nkeynes@1023 | 131 | return status;
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nkeynes@1023 | 132 | }
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nkeynes@1023 | 133 | /* FIXME */
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nkeynes@1023 | 134 | *length = 2048;
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nkeynes@1023 | 135 | return 0;
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nkeynes@1023 | 136 | }
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nkeynes@1023 | 137 |
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nkeynes@1023 | 138 | /**
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nkeynes@1023 | 139 | * Read the full table of contents into the disc from the device.
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nkeynes@1023 | 140 | */
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nkeynes@1097 | 141 | gboolean cdrom_disc_scsi_read_toc( cdrom_disc_t disc, ERROR *err )
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nkeynes@1023 | 142 | {
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nkeynes@1023 | 143 | unsigned char buf[MAXTOCSIZE];
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nkeynes@1023 | 144 | uint32_t buflen = sizeof(buf);
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nkeynes@1023 | 145 | char cmd[12] = { 0x43, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
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nkeynes@1023 | 146 |
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nkeynes@1023 | 147 | cmd[7] = (sizeof(buf))>>8;
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nkeynes@1023 | 148 | cmd[8] = (sizeof(buf))&0xFF;
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nkeynes@1023 | 149 | memset( buf, 0, sizeof(buf) );
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nkeynes@1097 | 150 | cdrom_error_t status = SCSI_TRANSPORT(disc)->packet_read(disc, cmd, buf, &buflen );
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nkeynes@1097 | 151 | if( status == CDROM_ERROR_OK ) {
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nkeynes@1097 | 152 | mmc_parse_toc2( disc, buf );
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nkeynes@1097 | 153 | return TRUE;
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nkeynes@1023 | 154 | } else {
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nkeynes@1071 | 155 | if( (status & 0xFF) != 0x02 ) {
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nkeynes@1023 | 156 | /* Sense key 2 == Not Ready (ie temporary failure). Just ignore and
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nkeynes@1023 | 157 | * consider the drive empty for now, but warn about any other errors
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nkeynes@1023 | 158 | * we get. */
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nkeynes@1023 | 159 | WARN( _("Unable to read disc table of contents (error %04x)"), status );
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nkeynes@1023 | 160 | }
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nkeynes@1097 | 161 | cdrom_disc_clear_toc(disc);
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nkeynes@1097 | 162 | return FALSE;
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nkeynes@1023 | 163 | }
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nkeynes@1023 | 164 | }
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nkeynes@1023 | 165 |
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nkeynes@1097 | 166 | static gboolean cdrom_disc_scsi_check_media( cdrom_disc_t disc )
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nkeynes@1023 | 167 | {
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nkeynes@1023 | 168 | if( SCSI_TRANSPORT(disc)->media_changed(disc) ) {
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nkeynes@1097 | 169 | cdrom_disc_scsi_read_toc(disc, NULL);
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nkeynes@1023 | 170 | return TRUE;
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nkeynes@1023 | 171 | } else {
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nkeynes@1023 | 172 | return FALSE;
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nkeynes@1023 | 173 | }
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nkeynes@1023 | 174 | }
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nkeynes@1023 | 175 |
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nkeynes@1097 | 176 | static cdrom_error_t cdrom_disc_scsi_play_audio( cdrom_disc_t disc, cdrom_lba_t lba, cdrom_count_t length )
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nkeynes@1023 | 177 | {
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nkeynes@1023 | 178 | char cmd[12] = { 0xA5, 0,0,0, 0,0,0,0, 0,0,0,0 };
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nkeynes@1097 | 179 | cmd[2] = (lba >> 24) & 0xFF;
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nkeynes@1097 | 180 | cmd[3] = (lba >> 16) & 0xFF;
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nkeynes@1097 | 181 | cmd[4] = (lba >> 8) & 0xFF;
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nkeynes@1097 | 182 | cmd[5] = lba & 0xFF;
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nkeynes@1023 | 183 | cmd[6] = (length >> 24) & 0xFF;
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nkeynes@1023 | 184 | cmd[7] = (length >> 16) & 0xFF;
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nkeynes@1023 | 185 | cmd[8] = (length >> 8) & 0xFF;
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nkeynes@1023 | 186 | cmd[9] = length & 0xFF;
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nkeynes@1023 | 187 |
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nkeynes@1023 | 188 | return SCSI_TRANSPORT(disc)->packet_cmd( disc, cmd );
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nkeynes@1023 | 189 | }
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nkeynes@1023 | 190 |
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nkeynes@1023 | 191 |
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nkeynes@1097 | 192 | static cdrom_error_t cdrom_disc_scsi_stop_audio( cdrom_disc_t disc )
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nkeynes@1023 | 193 | {
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nkeynes@1023 | 194 | char cmd[12] = {0x4E,0,0,0, 0,0,0,0, 0,0,0,0};
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nkeynes@1023 | 195 |
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nkeynes@1023 | 196 | return SCSI_TRANSPORT(disc)->packet_cmd( disc, cmd );
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nkeynes@1023 | 197 | }
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nkeynes@1023 | 198 |
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nkeynes@1097 | 199 | void cdrom_disc_scsi_init( cdrom_disc_t disc, cdrom_scsi_transport_t scsi )
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nkeynes@1097 | 200 | {
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nkeynes@1097 | 201 | disc->impl_data = scsi;
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nkeynes@1097 | 202 | disc->source.read_sectors = cdrom_disc_scsi_read_sectors;
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nkeynes@1097 | 203 | disc->read_toc = cdrom_disc_scsi_read_toc;
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nkeynes@1097 | 204 | disc->check_media = cdrom_disc_scsi_check_media;
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nkeynes@1097 | 205 | disc->play_audio = cdrom_disc_scsi_play_audio;
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nkeynes@1097 | 206 | disc->stop_audio = cdrom_disc_scsi_stop_audio;
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nkeynes@1097 | 207 | }
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nkeynes@1023 | 208 |
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nkeynes@1097 | 209 | cdrom_disc_t cdrom_disc_scsi_new( const char *filename, cdrom_scsi_transport_t scsi, ERROR *err )
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nkeynes@1023 | 210 | {
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nkeynes@1097 | 211 | cdrom_disc_t disc = cdrom_disc_new(filename, err);
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nkeynes@1023 | 212 | if( disc != NULL ) {
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nkeynes@1097 | 213 | /* Initialize */
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nkeynes@1097 | 214 | cdrom_disc_scsi_init( disc, scsi );
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nkeynes@1097 | 215 | cdrom_disc_read_toc(disc, err);
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nkeynes@1023 | 216 | }
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nkeynes@1023 | 217 | return disc;
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nkeynes@1071 | 218 | }
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nkeynes@1097 | 219 |
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nkeynes@1097 | 220 | cdrom_disc_t cdrom_disc_scsi_new_file( FILE *f, const char *filename, cdrom_scsi_transport_t scsi, ERROR *err )
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nkeynes@1097 | 221 | {
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nkeynes@1097 | 222 | cdrom_disc_t disc = cdrom_disc_new(filename, err);
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nkeynes@1097 | 223 | if( disc != NULL ) {
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nkeynes@1097 | 224 | /* Initialize */
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nkeynes@1097 | 225 | disc->base_source = file_sector_source_new( f, SECTOR_UNKNOWN, 0, 0, TRUE );
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nkeynes@1097 | 226 | if( disc->base_source != NULL ) {
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nkeynes@1097 | 227 | sector_source_ref( disc->base_source );
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nkeynes@1097 | 228 | cdrom_disc_scsi_init( disc, scsi );
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nkeynes@1097 | 229 | cdrom_disc_read_toc(disc, err);
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nkeynes@1097 | 230 | } else {
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nkeynes@1097 | 231 | cdrom_disc_unref(disc);
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nkeynes@1097 | 232 | disc = NULL;
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nkeynes@1097 | 233 | }
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nkeynes@1097 | 234 | }
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nkeynes@1097 | 235 | return disc;
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nkeynes@1097 | 236 | }
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