Date: Tue, 12 Dec 2000 08:22:22 +0300 From: "Valeriy E. Ushakov" <uwe@ptc.spbu.ru> To: stable@FreeBSD.ORG Subject: Re: Problem with video-CDs Message-ID: <20001212082222.A19475@snark.ptc.spbu.ru> In-Reply-To: <200012110158.MAA08709@lightning.itga.com.au>; from "Gregory Bond" on Mon, Dec 11, 2000 at 12:58:26 References: <200012110158.MAA08709@lightning.itga.com.au>
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On Mon, Dec 11, 2000 at 12:58:26 +1100, Gregory Bond wrote:
> acd0: READ_BIG - ILLEGAL REQUEST asc=64 ascq=00 error=04
>
> and dd gets EIO. On 3.5 dd gets EIO but no console message.
>
> Is this a known problem?
Yes.
In /sys/dev/ata/atapi-cd.c in acd_start change flags to ATAPI_READ_CD
from 0x10 (data only) to 0xf8 (whole sector):
--- atapi-cd.c-dist Tue Dec 12 08:11:15 2000
+++ atapi-cd.c-new Tue Dec 12 08:12:08 2000
@@ -1165,7 +1165,7 @@
ccb[0] = ATAPI_READ_BIG;
else {
ccb[0] = ATAPI_READ_CD;
- ccb[9] = 0x10;
+ ccb[9] = 0xf8;
}
}
else
After this you can write a C program that does something along the
lines of:
struct vcdsector {
u_char sync[12];
u_char header[4];
u_char subheader[8];
u_char data[2324];
u_char spare[4];
};
struct vcdsector sec;
int bs = sizeof(struct vcdsector);
/* read toc */
ioctl(fd, CDRIOCSETBLOCKSIZE, &bs); /* sic! CD_R_IO, */
/* lseek to track start */
for (...) {
read(fd, &sec, bs);
fwrite(sec.data, 2324, 1, outfile);
}
Driver author knows about this and, as far as I understand, has this
fixed in his development sources.
SY, Uwe
--
uwe@ptc.spbu.ru | Zu Grunde kommen
http://www.ptc.spbu.ru/~uwe/ | Ist zu Grunde gehen
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