80486DX2-66/86Box-fork
1
0
Fork 0
Code Issues Pull Requests Activity

The CD-ROM READ CAPACITY, READ SUBCHANNEL, READ TOC, READ DISC INFORMATION, and READ TRACK INFORMATION commands now return a sane length if the length from pass through is 8192 bytes.

Browse Source
This commit is contained in:
OBattler
2017-01-24 20:25:58 +01:00
parent bc5ac4a699
commit f2c8591220
1 changed files with 47 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

47
src/cdrom.c
View File

@@ -1759,6 +1759,20 @@ void cdrom_command(uint8_t id, uint8_t *cdb)
{
return;
}
if (len == 8192)
{
max_len = cdb[8] + (cdb[7] << 8);
len = cdbufferb[0] + (cdbufferb[1] << 8);
len += 2;
if (max_len < len)
{
max_len -= 2;
cdbufferb[0] = max_len >> 8;
cdbufferb[1] = max_len & 0xff;
len = max_len + 2;
}
}
}
else
{
@@ -2096,6 +2110,12 @@ void cdrom_command(uint8_t id, uint8_t *cdb)
{
return;
}
if (len == 8192)
{
cdbufferb[0] = 0;
cdbufferb[1] = 32;
len = 34;
}
}
else
{
@@ -2130,6 +2150,13 @@ void cdrom_command(uint8_t id, uint8_t *cdb)
{
return;
}
if (len == 8192)
{
cdbufferb[0] = 0;
cdbufferb[1] = 34;
len = 36;
}
}
else
{
@@ -2142,6 +2169,7 @@ void cdrom_command(uint8_t id, uint8_t *cdb)
len = 36;
memset(cdbufferb, 0, 36);
cdbufferb[0] = 0;
cdbufferb[1] = 34;
cdbufferb[2] = 1; /* track number (LSB) */
cdbufferb[3] = 1; /* session number (LSB) */
@@ -2243,6 +2271,21 @@ void cdrom_command(uint8_t id, uint8_t *cdb)
}
break;
}
if (len == 8192)
{
switch(cdb[3])
{
case 0:
len = 4;
break;
case 1:
len = 16;
break;
default:
len = 24;
break;
}
}
}
else
{
@@ -2519,6 +2562,10 @@ atapi_out:
{
return;
}
if (len == 8192)
{
len = 8;
}
}
else
{