NetBSD Problem Report #38204

From martin@duskware.de  Sun Mar  9 11:16:18 2008
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Date: Sun,  9 Mar 2008 11:14:18 +0000 (UTC)
From: svs@ropnet.ru
Reply-To: svs@ropnet.ru
To: netbsd-bugs-owner@NetBSD.org
Subject: Linux CDROMREADRAW ioctl is not emulated
X-Send-Pr-Version: www-1.0

>Number:         38204
>Category:       kern
>Synopsis:       Linux CDROMREADRAW ioctl is not emulated
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Sun Mar 09 11:20:00 +0000 2008
>Closed-Date:    
>Last-Modified:  Tue May 16 05:45:25 +0000 2017
>Originator:     Sergey Svishchev
>Release:        4.0
>Organization:
>Environment:
>Description:
Linux provides CDROMREADRAW ioctl to read data from CD in raw mode (2352 bytes).  ePSXe (Sony Playstation emulator, Linux binary is available) uses it to run games from original discs.
>How-To-Repeat:

>Fix:
--- sys/compat/linux/common/linux_cdrom.c	12 Jun 2006 00:42:18 -0000	1.20
+++ sys/compat/linux/common/linux_cdrom.c	9 Mar 2008 11:02:49 -0000
@@ -45,6 +45,7 @@
 #include <sys/proc.h>
 #include <sys/cdio.h>
 #include <sys/dvdio.h>
+#include <sys/scsiio.h>
 #include <sys/malloc.h>

 #include <sys/sa.h>
@@ -71,6 +72,7 @@
  * XXX from dev/scsipi/cd.c
  */
 #define MAXTRACK 99
+#define RAW_SECTOR 2352

 static int
 bsd_to_linux_msf_lba(unsigned address_format, union msf_lba *bml,
@@ -101,7 +103,7 @@
 	} */ *uap;
 	register_t *retval;
 {
-	int error, idata;
+	int error, idata, rrlba;
 	u_long com, ncom;
 	caddr_t sg;
 	struct file *fp;
@@ -142,6 +144,7 @@
 		struct cd_sub_channel_info tt_info;
 		struct ioc_read_subchannel tt_subchannel;
 		struct ioc_vol tt_vol;
+		struct scsireq tt_sc;
 	} *u2;

 #define	t_blocks u2->tt_blocks
@@ -153,6 +156,7 @@
 #define	t_info u2->tt_info
 #define	t_subchannel u2->tt_subchannel
 #define	t_vol u2->tt_vol
+#define	t_sc u2->tt_sc

 	struct cd_toc_entry *entry;
 	struct cd_sub_channel_info *info;
@@ -469,6 +473,32 @@
 		error = copyout(&dai, SCARG(uap, data), sizeof dai);
 		break;

+	case LINUX_CDROMREADRAW:
+		error = copyin(SCARG(uap, data), &l_msf, sizeof l_msf);
+		if (error)
+			break;
+
+		rrlba = (((l_msf.cdmsf_min0 * 60) + l_msf.cdmsf_sec0) * 75 + l_msf.cdmsf_frame0) - 150;
+
+		memset(&t_sc, 0, sizeof(t_sc));
+		t_sc.cmd[0] = 0xBE;	/* READ CD */
+		t_sc.cmd[1] = 0;	/* don't check sector type */
+		t_sc.cmd[2] = (rrlba >> 24) & 0xff;
+		t_sc.cmd[3] = (rrlba >> 16) & 0xff;
+		t_sc.cmd[4] = (rrlba >>  8) & 0xff;
+		t_sc.cmd[5] =  rrlba	  & 0xff;
+		t_sc.cmd[8] = 1;	/* 1 sector */
+		t_sc.cmd[9] = 0xF8;	/* everything */
+		t_sc.cmdlen = 12;
+		t_sc.databuf = (caddr_t) SCARG(uap, data);
+		t_sc.datalen = RAW_SECTOR;
+		t_sc.senselen = 0;
+		t_sc.flags = SCCMD_READ;
+		t_sc.timeout = 15;	/* XXX */
+
+		error = ioctlf(fp, SCIOCCOMMAND, (caddr_t)&t_sc, l);
+		break;
+

 	default:
 		DPRINTF(("linux_ioctl: unimplemented ioctl %08lx\n", com));
--- sys/compat/linux/common/linux_cdrom.h	11 Dec 2005 12:20:19 -0000	1.7
+++ sys/compat/linux/common/linux_cdrom.h	24 Feb 2008 23:41:49 -0000
@@ -56,6 +56,7 @@
 #define LINUX_CDROMMULTISESSION	0x5310	/* (struct linux_cdrom_multisession) */
 #define LINUX_CDROMRESET	0x5312
 #define LINUX_CDROMVOLREAD	0x5313	/* (struct linux_cdrom_volctrl) */
+#define LINUX_CDROMREADRAW	0x5314	/* (struct linux_cdrom_msf) */
 #define LINUX_CDROMPLAYBLK	0x5317	/* (struct linux_cdrom_blk) */
 #define LINUX_CDROMCLOSETRAY	0x5319	/* */
 #define LINUX_CDROM_SET_OPTIONS	0x5320	/* int */

>Release-Note:

>Audit-Trail:

State-Changed-From-To: open->feedback
State-Changed-By: dholland@NetBSD.org
State-Changed-When: Mon, 08 Aug 2016 05:19:16 +0000
State-Changed-Why:
want to merge this? :-/


From: Sergey Svishchev <shattered@NetBSD.org>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: Re: kern/38204 (Linux CDROMREADRAW ioctl is not emulated)
Date: Tue, 9 Aug 2016 00:17:09 +0300

 On Mon, Aug 08, 2016 at 05:19:16AM +0000, dholland@NetBSD.org wrote:
 >Synopsis: Linux CDROMREADRAW ioctl is not emulated
 >
 >State-Changed-From-To: open->feedback
 >State-Changed-By: dholland@NetBSD.org
 >State-Changed-When: Mon, 08 Aug 2016 05:19:16 +0000
 >State-Changed-Why:
 >want to merge this? :-/

 I won't stop you from doing that

 -- 
 Sergey Svishchev

State-Changed-From-To: feedback->open
State-Changed-By: dholland@NetBSD.org
State-Changed-When: Tue, 16 May 2017 05:45:25 +0000
State-Changed-Why:
feedback mail is bouncing


>Unformatted:

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