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CD-ROM READ SUBCHANNEL command now does not pass through if requested data type is 1 (current position), instead the current position held by the emulator is returned;

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CD-ROM READ SUBCHANNEL command now respects the allocated length set in the CDB.
This commit is contained in:
OBattler
2017-01-25 06:58:40 +01:00
parent 6f705abd61
commit 89840c7fc9
1 changed files with 8 additions and 4 deletions
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12
src/cdrom.c
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@@ -2243,8 +2243,12 @@ void cdrom_command(uint8_t id, uint8_t *cdb)
break;
case GPCMD_READ_SUBCHANNEL:
max_len = cdb[7];
max_len <<= 8;
max_len |= cdb[8];
cdrom_log("CD-ROM %i: Getting page %i\n", id, cdb[3]);
if (cdrom_drives[id].handler->pass_through)
if ((cdrom_drives[id].handler->pass_through) && (cdb[3] != 1))
{
ret = cdrom_pass_through(id, &len);
if (!ret)
@@ -2315,7 +2319,7 @@ void cdrom_command(uint8_t id, uint8_t *cdb)
cdbufferb[pos++] = 0; /*Audio status*/
cdbufferb[pos++] = 0; cdbufferb[pos++] = 0; /*Subchannel length*/
cdbufferb[pos++] = cdb[3] & 3; /*Format code*/
if ((temp & 3) == 1)
if (cdb[3] == 1)
{
cdbufferb[1] = cdrom_drives[id].handler->getcurrentsubchannel(id, &cdbufferb[5], msf);
if (((cdbufferb[1] == 0x13) && !completed) || (cd_status == CD_STATUS_DATA_ONLY))
@@ -2323,7 +2327,7 @@ void cdrom_command(uint8_t id, uint8_t *cdb)
cdbufferb[1] = 0x15;
}
}
if (!(cdb[2] & 0x40) || ((cdb[3] & 3) == 0))
if (!(cdb[2] & 0x40) || (cdb[3] == 0))
{
len = 4;
}
@@ -2333,7 +2337,7 @@ void cdrom_command(uint8_t id, uint8_t *cdb)
}
}
cdrom_data_command_finish(id, len, len, len, 0);
cdrom_data_command_finish(id, len, len, max_len, 0);
break;
case GPCMD_READ_DVD_STRUCTURE: