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linux-next/drivers/cdrom/gscd.c
Tim Schmielau cd354f1ae7 [PATCH] remove many unneeded #includes of sched.h 
After Al Viro (finally) succeeded in removing the sched.h #include in module.h
recently, it makes sense again to remove other superfluous sched.h includes.
There are quite a lot of files which include it but don't actually need
anything defined in there.  Presumably these includes were once needed for
macros that used to live in sched.h, but moved to other header files in the
course of cleaning it up.

To ease the pain, this time I did not fiddle with any header files and only
removed #includes from .c-files, which tend to cause less trouble.

Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
configs in arch/arm/configs on arm.  I also checked that no new warnings were
introduced by the patch (actually, some warnings are removed that were emitted
by unnecessarily included header files).

Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-14 08:09:54 -08:00

1030 lines
19 KiB
C
Raw Blame History

#define GSCD_VERSION "0.4a Oliver Raupach <raupach@nwfs1.rz.fh-hannover.de>"
/*
linux/drivers/block/gscd.c - GoldStar R420 CDROM driver
Copyright (C) 1995 Oliver Raupach <raupach@nwfs1.rz.fh-hannover.de>
based upon pre-works by Eberhard Moenkeberg <emoenke@gwdg.de>
For all kind of other information about the GoldStar CDROM
and this Linux device driver I installed a WWW-URL:
http://linux.rz.fh-hannover.de/~raupach
If you are the editor of a Linux CD, you should
enable gscd.c within your boot floppy kernel and
send me one of your CDs for free.
--------------------------------------------------------------------
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
--------------------------------------------------------------------
9 November 1999 -- Make kernel-parameter implementation work with 2.3.x
Removed init_module & cleanup_module in favor of
module_init & module_exit.
Torben Mathiasen <tmm@image.dk>
*/
/* These settings are for various debug-level. Leave they untouched ... */
#define NO_GSCD_DEBUG
#define NO_IOCTL_DEBUG
#define NO_MODULE_DEBUG
#define NO_FUTURE_WORK
/*------------------------*/
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/errno.h>
#include <linux/signal.h>
#include <linux/timer.h>
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/kernel.h>
#include <linux/cdrom.h>
#include <linux/ioport.h>
#include <linux/major.h>
#include <linux/string.h>
#include <linux/init.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/uaccess.h>
#define MAJOR_NR GOLDSTAR_CDROM_MAJOR
#include <linux/blkdev.h>
#include "gscd.h"
static int gscdPresent = 0;
static unsigned char gscd_buf[2048]; /* buffer for block size conversion */
static int gscd_bn = -1;
static short gscd_port = GSCD_BASE_ADDR;
module_param_named(gscd, gscd_port, short, 0);
/* Kommt spaeter vielleicht noch mal dran ...
* static DECLARE_WAIT_QUEUE_HEAD(gscd_waitq);
*/
static void gscd_read_cmd(struct request *req);
static void gscd_hsg2msf(long hsg, struct msf *msf);
static void gscd_bin2bcd(unsigned char *p);
/* Schnittstellen zum Kern/FS */
static void __do_gscd_request(unsigned long dummy);
static int gscd_ioctl(struct inode *, struct file *, unsigned int,
unsigned long);
static int gscd_open(struct inode *, struct file *);
static int gscd_release(struct inode *, struct file *);
static int check_gscd_med_chg(struct gendisk *disk);
/* GoldStar Funktionen */
static void cmd_out(int, char *, char *, int);
static void cmd_status(void);
static void init_cd_drive(int);
static int get_status(void);
static void clear_Audio(void);
static void cc_invalidate(void);
/* some things for the next version */
#ifdef FUTURE_WORK
static void update_state(void);
static long gscd_msf2hsg(struct msf *mp);
static int gscd_bcd2bin(unsigned char bcd);
#endif
/* lo-level cmd-Funktionen */
static void cmd_info_in(char *, int);
static void cmd_end(void);
static void cmd_read_b(char *, int, int);
static void cmd_read_w(char *, int, int);
static int cmd_unit_alive(void);
static void cmd_write_cmd(char *);
/* GoldStar Variablen */
static int curr_drv_state;
static int drv_states[] = { 0, 0, 0, 0, 0, 0, 0, 0 };
static int drv_mode;
static int disk_state;
static int speed;
static int ndrives;
static unsigned char drv_num_read;
static unsigned char f_dsk_valid;
static unsigned char current_drive;
static unsigned char f_drv_ok;
static char f_AudioPlay;
static char f_AudioPause;
static int AudioStart_m;
static int AudioStart_f;
static int AudioEnd_m;
static int AudioEnd_f;
static DEFINE_TIMER(gscd_timer, NULL, 0, 0);
static DEFINE_SPINLOCK(gscd_lock);
static struct request_queue *gscd_queue;
static struct block_device_operations gscd_fops = {
.owner = THIS_MODULE,
.open = gscd_open,
.release = gscd_release,
.ioctl = gscd_ioctl,
.media_changed = check_gscd_med_chg,
};
/*
* Checking if the media has been changed
* (not yet implemented)
*/
static int check_gscd_med_chg(struct gendisk *disk)
{
#ifdef GSCD_DEBUG
printk("gscd: check_med_change\n");
#endif
return 0;
}
#ifndef MODULE
/* Using new interface for kernel-parameters */
static int __init gscd_setup(char *str)
{
int ints[2];
(void) get_options(str, ARRAY_SIZE(ints), ints);
if (ints[0] > 0) {
gscd_port = ints[1];
}
return 1;
}
__setup("gscd=", gscd_setup);
#endif
static int gscd_ioctl(struct inode *ip, struct file *fp, unsigned int cmd,
unsigned long arg)
{
unsigned char to_do[10];
unsigned char dummy;
switch (cmd) {
case CDROMSTART: /* Spin up the drive */
/* Don't think we can do this. Even if we could,
* I think the drive times out and stops after a while
* anyway. For now, ignore it.
*/
return 0;
case CDROMRESUME: /* keine Ahnung was das ist */
return 0;
case CDROMEJECT:
cmd_status();
to_do[0] = CMD_TRAY_CTL;
cmd_out(TYPE_INFO, (char *) &to_do, (char *) &dummy, 0);
return 0;
default:
return -EINVAL;
}
}
/*
* Take care of the different block sizes between cdrom and Linux.
* When Linux gets variable block sizes this will probably go away.
*/
static void gscd_transfer(struct request *req)
{
while (req->nr_sectors > 0 && gscd_bn == req->sector / 4) {
long offs = (req->sector & 3) * 512;
memcpy(req->buffer, gscd_buf + offs, 512);
req->nr_sectors--;
req->sector++;
req->buffer += 512;
}
}
/*
* I/O request routine called from Linux kernel.
*/
static void do_gscd_request(request_queue_t * q)
{
__do_gscd_request(0);
}
static void __do_gscd_request(unsigned long dummy)
{
struct request *req;
unsigned int block;
unsigned int nsect;
repeat:
req = elv_next_request(gscd_queue);
if (!req)
return;
block = req->sector;
nsect = req->nr_sectors;
if (req->sector == -1)
goto out;
if (req->cmd != READ) {
printk("GSCD: bad cmd %u\n", rq_data_dir(req));
end_request(req, 0);
goto repeat;
}
gscd_transfer(req);
/* if we satisfied the request from the buffer, we're done. */
if (req->nr_sectors == 0) {
end_request(req, 1);
goto repeat;
}
#ifdef GSCD_DEBUG
printk("GSCD: block %d, nsect %d\n", block, nsect);
#endif
gscd_read_cmd(req);
out:
return;
}
/*
* Check the result of the set-mode command. On success, send the
* read-data command.
*/
static void gscd_read_cmd(struct request *req)
{
long block;
struct gscd_Play_msf gscdcmd;
char cmd[] = { CMD_READ, 0x80, 0, 0, 0, 0, 1 }; /* cmd mode M-S-F secth sectl */
cmd_status();
if (disk_state & (ST_NO_DISK | ST_DOOR_OPEN)) {
printk("GSCD: no disk or door open\n");
end_request(req, 0);
} else {
if (disk_state & ST_INVALID) {
printk("GSCD: disk invalid\n");
end_request(req, 0);
} else {
gscd_bn = -1; /* purge our buffer */
block = req->sector / 4;
gscd_hsg2msf(block, &gscdcmd.start); /* cvt to msf format */
cmd[2] = gscdcmd.start.min;
cmd[3] = gscdcmd.start.sec;
cmd[4] = gscdcmd.start.frame;
#ifdef GSCD_DEBUG
printk("GSCD: read msf %d:%d:%d\n", cmd[2], cmd[3],
cmd[4]);
#endif
cmd_out(TYPE_DATA, (char *) &cmd,
(char *) &gscd_buf[0], 1);
gscd_bn = req->sector / 4;
gscd_transfer(req);
end_request(req, 1);
}
}
SET_TIMER(__do_gscd_request, 1);
}
/*
* Open the device special file. Check that a disk is in.
*/
static int gscd_open(struct inode *ip, struct file *fp)
{
int st;
#ifdef GSCD_DEBUG
printk("GSCD: open\n");
#endif
if (gscdPresent == 0)
return -ENXIO; /* no hardware */
get_status();
st = disk_state & (ST_NO_DISK | ST_DOOR_OPEN);
if (st) {
printk("GSCD: no disk or door open\n");
return -ENXIO;
}
/* if (updateToc() < 0)
return -EIO;
*/
return 0;
}
/*
* On close, we flush all gscd blocks from the buffer cache.
*/
static int gscd_release(struct inode *inode, struct file *file)
{
#ifdef GSCD_DEBUG
printk("GSCD: release\n");
#endif
gscd_bn = -1;
return 0;
}
static int get_status(void)
{
int status;
cmd_status();
status = disk_state & (ST_x08 | ST_x04 | ST_INVALID | ST_x01);
if (status == (ST_x08 | ST_x04 | ST_INVALID | ST_x01)) {
cc_invalidate();
return 1;
} else {
return 0;
}
}
static void cc_invalidate(void)
{
drv_num_read = 0xFF;
f_dsk_valid = 0xFF;
current_drive = 0xFF;
f_drv_ok = 0xFF;
clear_Audio();
}
static void clear_Audio(void)
{
f_AudioPlay = 0;
f_AudioPause = 0;
AudioStart_m = 0;
AudioStart_f = 0;
AudioEnd_m = 0;
AudioEnd_f = 0;
}
/*
* waiting ?
*/
static int wait_drv_ready(void)
{
int found, read;
do {
found = inb(GSCDPORT(0));
found &= 0x0f;
read = inb(GSCDPORT(0));
read &= 0x0f;
} while (read != found);
#ifdef GSCD_DEBUG
printk("Wait for: %d\n", read);
#endif
return read;
}
static void cc_Ident(char *respons)
{
char to_do[] = { CMD_IDENT, 0, 0 };
cmd_out(TYPE_INFO, (char *) &to_do, (char *) respons, (int) 0x1E);
}
static void cc_SetSpeed(void)
{
char to_do[] = { CMD_SETSPEED, 0, 0 };
char dummy;
if (speed > 0) {
to_do[1] = speed & 0x0F;
cmd_out(TYPE_INFO, (char *) &to_do, (char *) &dummy, 0);
}
}
static void cc_Reset(void)
{
char to_do[] = { CMD_RESET, 0 };
char dummy;
cmd_out(TYPE_INFO, (char *) &to_do, (char *) &dummy, 0);
}
static void cmd_status(void)
{
char to_do[] = { CMD_STATUS, 0 };
char dummy;
cmd_out(TYPE_INFO, (char *) &to_do, (char *) &dummy, 0);
#ifdef GSCD_DEBUG
printk("GSCD: Status: %d\n", disk_state);
#endif
}
static void cmd_out(int cmd_type, char *cmd, char *respo_buf, int respo_count)
{
int result;
result = wait_drv_ready();
if (result != drv_mode) {
unsigned long test_loops = 0xFFFF;
int i, dummy;
outb(curr_drv_state, GSCDPORT(0));
/* LOCLOOP_170 */
do {
result = wait_drv_ready();
test_loops--;
} while ((result != drv_mode) && (test_loops > 0));
if (result != drv_mode) {
disk_state = ST_x08 | ST_x04 | ST_INVALID;
return;
}
/* ...and waiting */
for (i = 1, dummy = 1; i < 0xFFFF; i++) {
dummy *= i;
}
}
/* LOC_172 */
/* check the unit */
/* and wake it up */
if (cmd_unit_alive() != 0x08) {
/* LOC_174 */
/* game over for this unit */
disk_state = ST_x08 | ST_x04 | ST_INVALID;
return;
}
/* LOC_176 */
#ifdef GSCD_DEBUG
printk("LOC_176 ");
#endif
if (drv_mode == 0x09) {
/* magic... */
printk("GSCD: magic ...\n");
outb(result, GSCDPORT(2));
}
/* write the command to the drive */
cmd_write_cmd(cmd);
/* LOC_178 */
for (;;) {
result = wait_drv_ready();
if (result != drv_mode) {
/* LOC_179 */
if (result == 0x04) { /* Mode 4 */
/* LOC_205 */
#ifdef GSCD_DEBUG
printk("LOC_205 ");
#endif
disk_state = inb(GSCDPORT(2));
do {
result = wait_drv_ready();
} while (result != drv_mode);
return;
} else {
if (result == 0x06) { /* Mode 6 */
/* LOC_181 */
#ifdef GSCD_DEBUG
printk("LOC_181 ");
#endif
if (cmd_type == TYPE_DATA) {
/* read data */
/* LOC_184 */
if (drv_mode == 9) {
/* read the data to the buffer (word) */
/* (*(cmd+1))?(CD_FRAMESIZE/2):(CD_FRAMESIZE_RAW/2) */
cmd_read_w
(respo_buf,
respo_count,
CD_FRAMESIZE /
2);
return;
} else {
/* read the data to the buffer (byte) */
/* (*(cmd+1))?(CD_FRAMESIZE):(CD_FRAMESIZE_RAW) */
cmd_read_b
(respo_buf,
respo_count,
CD_FRAMESIZE);
return;
}
} else {
/* read the info to the buffer */
cmd_info_in(respo_buf,
respo_count);
return;
}
return;
}
}
} else {
disk_state = ST_x08 | ST_x04 | ST_INVALID;
return;
}
} /* for (;;) */
#ifdef GSCD_DEBUG
printk("\n");
#endif
}
static void cmd_write_cmd(char *pstr)
{
int i, j;
/* LOC_177 */
#ifdef GSCD_DEBUG
printk("LOC_177 ");
#endif
/* calculate the number of parameter */
j = *pstr & 0x0F;
/* shift it out */
for (i = 0; i < j; i++) {
outb(*pstr, GSCDPORT(2));
pstr++;
}
}
static int cmd_unit_alive(void)
{
int result;
unsigned long max_test_loops;
/* LOC_172 */
#ifdef GSCD_DEBUG
printk("LOC_172 ");
#endif
outb(curr_drv_state, GSCDPORT(0));
max_test_loops = 0xFFFF;
do {
result = wait_drv_ready();
max_test_loops--;
} while ((result != 0x08) && (max_test_loops > 0));
return result;
}
static void cmd_info_in(char *pb, int count)
{
int result;
char read;
/* read info */
/* LOC_182 */
#ifdef GSCD_DEBUG
printk("LOC_182 ");
#endif
do {
read = inb(GSCDPORT(2));
if (count > 0) {
*pb = read;
pb++;
count--;
}
/* LOC_183 */
do {
result = wait_drv_ready();
} while (result == 0x0E);
} while (result == 6);
cmd_end();
return;
}
static void cmd_read_b(char *pb, int count, int size)
{
int result;
int i;
/* LOC_188 */
/* LOC_189 */
#ifdef GSCD_DEBUG
printk("LOC_189 ");
#endif
do {
do {
result = wait_drv_ready();
} while (result != 6 || result == 0x0E);
if (result != 6) {
cmd_end();
return;
}
#ifdef GSCD_DEBUG
printk("LOC_191 ");
#endif
for (i = 0; i < size; i++) {
*pb = inb(GSCDPORT(2));
pb++;
}
count--;
} while (count > 0);
cmd_end();
return;
}
static void cmd_end(void)
{
int result;
/* LOC_204 */
#ifdef GSCD_DEBUG
printk("LOC_204 ");
#endif
do {
result = wait_drv_ready();
if (result == drv_mode) {
return;
}
} while (result != 4);
/* LOC_205 */
#ifdef GSCD_DEBUG
printk("LOC_205 ");
#endif
disk_state = inb(GSCDPORT(2));
do {
result = wait_drv_ready();
} while (result != drv_mode);
return;
}
static void cmd_read_w(char *pb, int count, int size)
{
int result;
int i;
#ifdef GSCD_DEBUG
printk("LOC_185 ");
#endif
do {
/* LOC_185 */
do {
result = wait_drv_ready();
} while (result != 6 || result == 0x0E);
if (result != 6) {
cmd_end();
return;
}
for (i = 0; i < size; i++) {
/* na, hier muss ich noch mal drueber nachdenken */
*pb = inw(GSCDPORT(2));
pb++;
}
count--;
} while (count > 0);
cmd_end();
return;
}
static int __init find_drives(void)
{
int *pdrv;
int drvnum;
int subdrv;
int i;
speed = 0;
pdrv = (int *) &drv_states;
curr_drv_state = 0xFE;
subdrv = 0;
drvnum = 0;
for (i = 0; i < 8; i++) {
subdrv++;
cmd_status();
disk_state &= ST_x08 | ST_x04 | ST_INVALID | ST_x01;
if (disk_state != (ST_x08 | ST_x04 | ST_INVALID)) {
/* LOC_240 */
*pdrv = curr_drv_state;
init_cd_drive(drvnum);
pdrv++;
drvnum++;
} else {
if (subdrv < 2) {
continue;
} else {
subdrv = 0;
}
}
/* curr_drv_state<<1; <-- das geht irgendwie nicht */
/* muss heissen: curr_drv_state <<= 1; (ist ja Wert-Zuweisung) */
curr_drv_state *= 2;
curr_drv_state |= 1;
#ifdef GSCD_DEBUG
printk("DriveState: %d\n", curr_drv_state);
#endif
}
ndrives = drvnum;
return drvnum;
}
static void __init init_cd_drive(int num)
{
char resp[50];
int i;
printk("GSCD: init unit %d\n", num);
cc_Ident((char *) &resp);
printk("GSCD: identification: ");
for (i = 0; i < 0x1E; i++) {
printk("%c", resp[i]);
}
printk("\n");
cc_SetSpeed();
}
#ifdef FUTURE_WORK
/* return_done */
static void update_state(void)
{
unsigned int AX;
if ((disk_state & (ST_x08 | ST_x04 | ST_INVALID | ST_x01)) == 0) {
if (disk_state == (ST_x08 | ST_x04 | ST_INVALID)) {
AX = ST_INVALID;
}
if ((disk_state & (ST_x08 | ST_x04 | ST_INVALID | ST_x01))
== 0) {
invalidate();
f_drv_ok = 0;
}
AX |= 0x8000;
}
if (disk_state & ST_PLAYING) {
AX |= 0x200;
}
AX |= 0x100;
/* pkt_esbx = AX; */
disk_state = 0;
}
#endif
static struct gendisk *gscd_disk;
static void __exit gscd_exit(void)
{
CLEAR_TIMER;
del_gendisk(gscd_disk);
put_disk(gscd_disk);
if ((unregister_blkdev(MAJOR_NR, "gscd") == -EINVAL)) {
printk("What's that: can't unregister GoldStar-module\n");
return;
}
blk_cleanup_queue(gscd_queue);
release_region(gscd_port, GSCD_IO_EXTENT);
printk(KERN_INFO "GoldStar-module released.\n");
}
/* This is the common initialisation for the GoldStar drive. */
/* It is called at boot time AND for module init. */
static int __init gscd_init(void)
{
int i;
int result;
int ret=0;
printk(KERN_INFO "GSCD: version %s\n", GSCD_VERSION);
printk(KERN_INFO
"GSCD: Trying to detect a Goldstar R420 CD-ROM drive at 0x%X.\n",
gscd_port);
if (!request_region(gscd_port, GSCD_IO_EXTENT, "gscd")) {
printk(KERN_WARNING "GSCD: Init failed, I/O port (%X) already"
" in use.\n", gscd_port);
return -EIO;
}
/* check for card */
result = wait_drv_ready();
if (result == 0x09) {
printk(KERN_WARNING "GSCD: DMA kann ich noch nicht!\n");
ret = -EIO;
goto err_out1;
}
if (result == 0x0b) {
drv_mode = result;
i = find_drives();
if (i == 0) {
printk(KERN_WARNING "GSCD: GoldStar CD-ROM Drive is"
" not found.\n");
ret = -EIO;
goto err_out1;
}
}
if ((result != 0x0b) && (result != 0x09)) {
printk(KERN_WARNING "GSCD: GoldStar Interface Adapter does not "
"exist or H/W error\n");
ret = -EIO;
goto err_out1;
}
/* reset all drives */
i = 0;
while (drv_states[i] != 0) {
curr_drv_state = drv_states[i];
printk(KERN_INFO "GSCD: Reset unit %d ... ", i);
cc_Reset();
printk("done\n");
i++;
}
gscd_disk = alloc_disk(1);
if (!gscd_disk)
goto err_out1;
gscd_disk->major = MAJOR_NR;
gscd_disk->first_minor = 0;
gscd_disk->fops = &gscd_fops;
sprintf(gscd_disk->disk_name, "gscd");
if (register_blkdev(MAJOR_NR, "gscd")) {
ret = -EIO;
goto err_out2;
}
gscd_queue = blk_init_queue(do_gscd_request, &gscd_lock);
if (!gscd_queue) {
ret = -ENOMEM;
goto err_out3;
}
disk_state = 0;
gscdPresent = 1;
gscd_disk->queue = gscd_queue;
add_disk(gscd_disk);
printk(KERN_INFO "GSCD: GoldStar CD-ROM Drive found.\n");
return 0;
err_out3:
unregister_blkdev(MAJOR_NR, "gscd");
err_out2:
put_disk(gscd_disk);
err_out1:
release_region(gscd_port, GSCD_IO_EXTENT);
return ret;
}
static void gscd_hsg2msf(long hsg, struct msf *msf)
{
hsg += CD_MSF_OFFSET;
msf->min = hsg / (CD_FRAMES * CD_SECS);
hsg %= CD_FRAMES * CD_SECS;
msf->sec = hsg / CD_FRAMES;
msf->frame = hsg % CD_FRAMES;
gscd_bin2bcd(&msf->min); /* convert to BCD */
gscd_bin2bcd(&msf->sec);
gscd_bin2bcd(&msf->frame);
}
static void gscd_bin2bcd(unsigned char *p)
{
int u, t;
u = *p % 10;
t = *p / 10;
*p = u | (t << 4);
}
#ifdef FUTURE_WORK
static long gscd_msf2hsg(struct msf *mp)
{
return gscd_bcd2bin(mp->frame)
+ gscd_bcd2bin(mp->sec) * CD_FRAMES
+ gscd_bcd2bin(mp->min) * CD_FRAMES * CD_SECS - CD_MSF_OFFSET;
}
static int gscd_bcd2bin(unsigned char bcd)
{
return (bcd >> 4) * 10 + (bcd & 0xF);
}
#endif
MODULE_AUTHOR("Oliver Raupach <raupach@nwfs1.rz.fh-hannover.de>");
MODULE_LICENSE("GPL");
module_init(gscd_init);
module_exit(gscd_exit);
MODULE_ALIAS_BLOCKDEV_MAJOR(GOLDSTAR_CDROM_MAJOR);
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