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sjcd.c
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sjcd.c
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/* -- sjcd.c
*
* Sanyo CD-ROM device driver implementation, Version 1.6
* Copyright (C) 1995 Vadim V. Model
*
*
*
* This driver is based on pre-works by Eberhard Moenkeberg ([email protected]);
* it was developed under use of mcd.c from Martin Harriss, with help of
* Eric van der Maarel ([email protected]).
*
* It is planned to include these routines into sbpcd.c later - to make
* a "mixed use" on one cable possible for all kinds of drives which use
* the SoundBlaster/Panasonic style CDROM interface. But today, the
* ability to install directly from CDROM is more important than flexibility.
*
* 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 of the License, 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.
*
* History:
* 1.1 First public release with kernel version 1.3.7.
* Written by Vadim Model.
* 1.2 Added detection and configuration of cdrom interface
* on ISP16 soundcard.
* Allow for command line options: sjcd=<io_base>,<irq>,<dma>
* 1.3 Some minor changes to README.sjcd.
* 1.4 MSS Sound support!! Listen to a CD through the speakers.
* 1.5 Module support and bugfixes.
* Tray locking.
* 1.6 Removed ISP16 code from this driver.
* Allow only to set io base address on command line: sjcd=<io_base>
* Changes to Documentation/cdrom/sjcd
* Added cleanup after any error in the initialisation.
* 1.7 Added code to set the sector size tables to prevent the bug present in
* the previous version of this driver. Coded added by Anthony Barbachan
* from bugfix tip originally suggested by Alan Cox.
*
* 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 <[email protected]>
*/
#define SJCD_VERSION_MAJOR 1
#define SJCD_VERSION_MINOR 7
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/timer.h>
#include <linux/fs.h>
#include <linux/kernel.h>
#include <linux/cdrom.h>
#include <linux/ioport.h>
#include <linux/string.h>
#include <linux/major.h>
#include <linux/init.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/uaccess.h>
#include <linux/blkdev.h>
#include "sjcd.h"
static int sjcd_present = 0;
static struct request_queue *sjcd_queue;
#define MAJOR_NR SANYO_CDROM_MAJOR
#define QUEUE (sjcd_queue)
#define CURRENT elv_next_request(sjcd_queue)
#define SJCD_BUF_SIZ 32 /* cdr-h94a has internal 64K buffer */
/*
* buffer for block size conversion
*/
static char sjcd_buf[2048 * SJCD_BUF_SIZ];
static volatile int sjcd_buf_bn[SJCD_BUF_SIZ], sjcd_next_bn;
static volatile int sjcd_buf_in, sjcd_buf_out = -1;
/*
* Status.
*/
static unsigned short sjcd_status_valid = 0;
static unsigned short sjcd_door_closed;
static unsigned short sjcd_door_was_open;
static unsigned short sjcd_media_is_available;
static unsigned short sjcd_media_is_changed;
static unsigned short sjcd_toc_uptodate = 0;
static unsigned short sjcd_command_failed;
static volatile unsigned char sjcd_completion_status = 0;
static volatile unsigned char sjcd_completion_error = 0;
static unsigned short sjcd_command_is_in_progress = 0;
static unsigned short sjcd_error_reported = 0;
static DEFINE_SPINLOCK(sjcd_lock);
static int sjcd_open_count;
static int sjcd_audio_status;
static struct sjcd_play_msf sjcd_playing;
static int sjcd_base = SJCD_BASE_ADDR;
module_param(sjcd_base, int, 0);
static DECLARE_WAIT_QUEUE_HEAD(sjcd_waitq);
/*
* Data transfer.
*/
static volatile unsigned short sjcd_transfer_is_active = 0;
enum sjcd_transfer_state {
SJCD_S_IDLE = 0,
SJCD_S_START = 1,
SJCD_S_MODE = 2,
SJCD_S_READ = 3,
SJCD_S_DATA = 4,
SJCD_S_STOP = 5,
SJCD_S_STOPPING = 6
};
static enum sjcd_transfer_state sjcd_transfer_state = SJCD_S_IDLE;
static long sjcd_transfer_timeout = 0;
static int sjcd_read_count = 0;
static unsigned char sjcd_mode = 0;
#define SJCD_READ_TIMEOUT 5000
#if defined( SJCD_GATHER_STAT )
/*
* Statistic.
*/
static struct sjcd_stat statistic;
#endif
/*
* Timer.
*/
static DEFINE_TIMER(sjcd_delay_timer, NULL, 0, 0);
#define SJCD_SET_TIMER( func, tmout ) \
( sjcd_delay_timer.expires = jiffies+tmout, \
sjcd_delay_timer.function = ( void * )func, \
add_timer( &sjcd_delay_timer ) )
#define CLEAR_TIMER del_timer( &sjcd_delay_timer )
/*
* Set up device, i.e., use command line data to set
* base address.
*/
#ifndef MODULE
static int __init sjcd_setup(char *str)
{
int ints[2];
(void) get_options(str, ARRAY_SIZE(ints), ints);
if (ints[0] > 0)
sjcd_base = ints[1];
return 1;
}
__setup("sjcd=", sjcd_setup);
#endif
/*
* Special converters.
*/
static unsigned char bin2bcd(int bin)
{
int u, v;
u = bin % 10;
v = bin / 10;
return (u | (v << 4));
}
static int bcd2bin(unsigned char bcd)
{
return ((bcd >> 4) * 10 + (bcd & 0x0F));
}
static long msf2hsg(struct msf *mp)
{
return (bcd2bin(mp->frame) + bcd2bin(mp->sec) * 75
+ bcd2bin(mp->min) * 4500 - 150);
}
static void hsg2msf(long hsg, struct msf *msf)
{
hsg += 150;
msf->min = hsg / 4500;
hsg %= 4500;
msf->sec = hsg / 75;
msf->frame = hsg % 75;
msf->min = bin2bcd(msf->min); /* convert to BCD */
msf->sec = bin2bcd(msf->sec);
msf->frame = bin2bcd(msf->frame);
}
/*
* Send a command to cdrom. Invalidate status.
*/
static void sjcd_send_cmd(unsigned char cmd)
{
#if defined( SJCD_TRACE )
printk("SJCD: send_cmd( 0x%x )\n", cmd);
#endif
outb(cmd, SJCDPORT(0));
sjcd_command_is_in_progress = 1;
sjcd_status_valid = 0;
sjcd_command_failed = 0;
}
/*
* Send a command with one arg to cdrom. Invalidate status.
*/
static void sjcd_send_1_cmd(unsigned char cmd, unsigned char a)
{
#if defined( SJCD_TRACE )
printk("SJCD: send_1_cmd( 0x%x, 0x%x )\n", cmd, a);
#endif
outb(cmd, SJCDPORT(0));
outb(a, SJCDPORT(0));
sjcd_command_is_in_progress = 1;
sjcd_status_valid = 0;
sjcd_command_failed = 0;
}
/*
* Send a command with four args to cdrom. Invalidate status.
*/
static void sjcd_send_4_cmd(unsigned char cmd, unsigned char a,
unsigned char b, unsigned char c,
unsigned char d)
{
#if defined( SJCD_TRACE )
printk("SJCD: send_4_cmd( 0x%x )\n", cmd);
#endif
outb(cmd, SJCDPORT(0));
outb(a, SJCDPORT(0));
outb(b, SJCDPORT(0));
outb(c, SJCDPORT(0));
outb(d, SJCDPORT(0));
sjcd_command_is_in_progress = 1;
sjcd_status_valid = 0;
sjcd_command_failed = 0;
}
/*
* Send a play or read command to cdrom. Invalidate Status.
*/
static void sjcd_send_6_cmd(unsigned char cmd, struct sjcd_play_msf *pms)
{
#if defined( SJCD_TRACE )
printk("SJCD: send_long_cmd( 0x%x )\n", cmd);
#endif
outb(cmd, SJCDPORT(0));
outb(pms->start.min, SJCDPORT(0));
outb(pms->start.sec, SJCDPORT(0));
outb(pms->start.frame, SJCDPORT(0));
outb(pms->end.min, SJCDPORT(0));
outb(pms->end.sec, SJCDPORT(0));
outb(pms->end.frame, SJCDPORT(0));
sjcd_command_is_in_progress = 1;
sjcd_status_valid = 0;
sjcd_command_failed = 0;
}
/*
* Get a value from the data port. Should not block, so we use a little
* wait for a while. Returns 0 if OK.
*/
static int sjcd_load_response(void *buf, int len)
{
unsigned char *resp = (unsigned char *) buf;
for (; len; --len) {
int i;
for (i = 200;
i-- && !SJCD_STATUS_AVAILABLE(inb(SJCDPORT(1))););
if (i > 0)
*resp++ = (unsigned char) inb(SJCDPORT(0));
else
break;
}
return (len);
}
/*
* Load and parse command completion status (drive info byte and maybe error).
* Sorry, no error classification yet.
*/
static void sjcd_load_status(void)
{
sjcd_media_is_changed = 0;
sjcd_completion_error = 0;
sjcd_completion_status = inb(SJCDPORT(0));
if (sjcd_completion_status & SST_DOOR_OPENED) {
sjcd_door_closed = sjcd_media_is_available = 0;
} else {
sjcd_door_closed = 1;
if (sjcd_completion_status & SST_MEDIA_CHANGED)
sjcd_media_is_available = sjcd_media_is_changed =
1;
else if (sjcd_completion_status & 0x0F) {
/*
* OK, we seem to catch an error ...
*/
while (!SJCD_STATUS_AVAILABLE(inb(SJCDPORT(1))));
sjcd_completion_error = inb(SJCDPORT(0));
if ((sjcd_completion_status & 0x08) &&
(sjcd_completion_error & 0x40))
sjcd_media_is_available = 0;
else
sjcd_command_failed = 1;
} else
sjcd_media_is_available = 1;
}
/*
* Ok, status loaded successfully.
*/
sjcd_status_valid = 1, sjcd_error_reported = 0;
sjcd_command_is_in_progress = 0;
/*
* If the disk is changed, the TOC is not valid.
*/
if (sjcd_media_is_changed)
sjcd_toc_uptodate = 0;
#if defined( SJCD_TRACE )
printk("SJCD: status %02x.%02x loaded.\n",
(int) sjcd_completion_status, (int) sjcd_completion_error);
#endif
}
/*
* Read status from cdrom. Check to see if the status is available.
*/
static int sjcd_check_status(void)
{
/*
* Try to load the response from cdrom into buffer.
*/
if (SJCD_STATUS_AVAILABLE(inb(SJCDPORT(1)))) {
sjcd_load_status();
return (1);
} else {
/*
* No status is available.
*/
return (0);
}
}
/*
* This is just timeout counter, and nothing more. Surprised ? :-)
*/
static volatile long sjcd_status_timeout;
/*
* We need about 10 seconds to wait. The longest command takes about 5 seconds
* to probe the disk (usually after tray closed or drive reset). Other values
* should be thought of for other commands.
*/
#define SJCD_WAIT_FOR_STATUS_TIMEOUT 1000
static void sjcd_status_timer(void)
{
if (sjcd_check_status()) {
/*
* The command completed and status is loaded, stop waiting.
*/
wake_up(&sjcd_waitq);
} else if (--sjcd_status_timeout <= 0) {
/*
* We are timed out.
*/
wake_up(&sjcd_waitq);
} else {
/*
* We have still some time to wait. Try again.
*/
SJCD_SET_TIMER(sjcd_status_timer, 1);
}
}
/*
* Wait for status for 10 sec approx. Returns non-positive when timed out.
* Should not be used while reading data CDs.
*/
static int sjcd_wait_for_status(void)
{
sjcd_status_timeout = SJCD_WAIT_FOR_STATUS_TIMEOUT;
SJCD_SET_TIMER(sjcd_status_timer, 1);
sleep_on(&sjcd_waitq);
#if defined( SJCD_DIAGNOSTIC ) || defined ( SJCD_TRACE )
if (sjcd_status_timeout <= 0)
printk("SJCD: Error Wait For Status.\n");
#endif
return (sjcd_status_timeout);
}
static int sjcd_receive_status(void)
{
int i;
#if defined( SJCD_TRACE )
printk("SJCD: receive_status\n");
#endif
/*
* Wait a bit for status available.
*/
for (i = 200; i-- && (sjcd_check_status() == 0););
if (i < 0) {
#if defined( SJCD_TRACE )
printk("SJCD: long wait for status\n");
#endif
if (sjcd_wait_for_status() <= 0)
printk("SJCD: Timeout when read status.\n");
else
i = 0;
}
return (i);
}
/*
* Load the status. Issue get status command and wait for status available.
*/
static void sjcd_get_status(void)
{
#if defined( SJCD_TRACE )
printk("SJCD: get_status\n");
#endif
sjcd_send_cmd(SCMD_GET_STATUS);
sjcd_receive_status();
}
/*
* Check the drive if the disk is changed. Should be revised.
*/
static int sjcd_disk_change(struct gendisk *disk)
{
#if 0
printk("SJCD: sjcd_disk_change(%s)\n", disk->disk_name);
#endif
if (!sjcd_command_is_in_progress)
sjcd_get_status();
return (sjcd_status_valid ? sjcd_media_is_changed : 0);
}
/*
* Read the table of contents (TOC) and TOC header if necessary.
* We assume that the drive contains no more than 99 toc entries.
*/
static struct sjcd_hw_disk_info sjcd_table_of_contents[SJCD_MAX_TRACKS];
static unsigned char sjcd_first_track_no, sjcd_last_track_no;
#define sjcd_disk_length sjcd_table_of_contents[0].un.track_msf
static int sjcd_update_toc(void)
{
struct sjcd_hw_disk_info info;
int i;
#if defined( SJCD_TRACE )
printk("SJCD: update toc:\n");
#endif
/*
* check to see if we need to do anything
*/
if (sjcd_toc_uptodate)
return (0);
/*
* Get the TOC start information.
*/
sjcd_send_1_cmd(SCMD_GET_DISK_INFO, SCMD_GET_1_TRACK);
sjcd_receive_status();
if (!sjcd_status_valid) {
printk("SJCD: cannot load status.\n");
return (-1);
}
if (!sjcd_media_is_available) {
printk("SJCD: no disk in drive\n");
return (-1);
}
if (!sjcd_command_failed) {
if (sjcd_load_response(&info, sizeof(info)) != 0) {
printk
("SJCD: cannot load response about TOC start.\n");
return (-1);
}
sjcd_first_track_no = bcd2bin(info.un.track_no);
} else {
printk("SJCD: get first failed\n");
return (-1);
}
#if defined( SJCD_TRACE )
printk("SJCD: TOC start 0x%02x ", sjcd_first_track_no);
#endif
/*
* Get the TOC finish information.
*/
sjcd_send_1_cmd(SCMD_GET_DISK_INFO, SCMD_GET_L_TRACK);
sjcd_receive_status();
if (!sjcd_status_valid) {
printk("SJCD: cannot load status.\n");
return (-1);
}
if (!sjcd_media_is_available) {
printk("SJCD: no disk in drive\n");
return (-1);
}
if (!sjcd_command_failed) {
if (sjcd_load_response(&info, sizeof(info)) != 0) {
printk
("SJCD: cannot load response about TOC finish.\n");
return (-1);
}
sjcd_last_track_no = bcd2bin(info.un.track_no);
} else {
printk("SJCD: get last failed\n");
return (-1);
}
#if defined( SJCD_TRACE )
printk("SJCD: TOC finish 0x%02x ", sjcd_last_track_no);
#endif
for (i = sjcd_first_track_no; i <= sjcd_last_track_no; i++) {
/*
* Get the first track information.
*/
sjcd_send_1_cmd(SCMD_GET_DISK_INFO, bin2bcd(i));
sjcd_receive_status();
if (!sjcd_status_valid) {
printk("SJCD: cannot load status.\n");
return (-1);
}
if (!sjcd_media_is_available) {
printk("SJCD: no disk in drive\n");
return (-1);
}
if (!sjcd_command_failed) {
if (sjcd_load_response(&sjcd_table_of_contents[i],
sizeof(struct
sjcd_hw_disk_info))
!= 0) {
printk
("SJCD: cannot load info for %d track\n",
i);
return (-1);
}
} else {
printk("SJCD: get info %d failed\n", i);
return (-1);
}
}
/*
* Get the disk length info.
*/
sjcd_send_1_cmd(SCMD_GET_DISK_INFO, SCMD_GET_D_SIZE);
sjcd_receive_status();
if (!sjcd_status_valid) {
printk("SJCD: cannot load status.\n");
return (-1);
}
if (!sjcd_media_is_available) {
printk("SJCD: no disk in drive\n");
return (-1);
}
if (!sjcd_command_failed) {
if (sjcd_load_response(&info, sizeof(info)) != 0) {
printk
("SJCD: cannot load response about disk size.\n");
return (-1);
}
sjcd_disk_length.min = info.un.track_msf.min;
sjcd_disk_length.sec = info.un.track_msf.sec;
sjcd_disk_length.frame = info.un.track_msf.frame;
} else {
printk("SJCD: get size failed\n");
return (1);
}
#if defined( SJCD_TRACE )
printk("SJCD: (%02x:%02x.%02x)\n", sjcd_disk_length.min,
sjcd_disk_length.sec, sjcd_disk_length.frame);
#endif
return (0);
}
/*
* Load subchannel information.
*/
static int sjcd_get_q_info(struct sjcd_hw_qinfo *qp)
{
int s;
#if defined( SJCD_TRACE )
printk("SJCD: load sub q\n");
#endif
sjcd_send_cmd(SCMD_GET_QINFO);
s = sjcd_receive_status();
if (s < 0 || sjcd_command_failed || !sjcd_status_valid) {
sjcd_send_cmd(0xF2);
s = sjcd_receive_status();
if (s < 0 || sjcd_command_failed || !sjcd_status_valid)
return (-1);
sjcd_send_cmd(SCMD_GET_QINFO);
s = sjcd_receive_status();
if (s < 0 || sjcd_command_failed || !sjcd_status_valid)
return (-1);
}
if (sjcd_media_is_available)
if (sjcd_load_response(qp, sizeof(*qp)) == 0)
return (0);
return (-1);
}
/*
* Start playing from the specified position.
*/
static int sjcd_play(struct sjcd_play_msf *mp)
{
struct sjcd_play_msf msf;
/*
* Turn the device to play mode.
*/
sjcd_send_1_cmd(SCMD_SET_MODE, SCMD_MODE_PLAY);
if (sjcd_receive_status() < 0)
return (-1);
/*
* Seek to the starting point.
*/
msf.start = mp->start;
msf.end.min = msf.end.sec = msf.end.frame = 0x00;
sjcd_send_6_cmd(SCMD_SEEK, &msf);
if (sjcd_receive_status() < 0)
return (-1);
/*
* Start playing.
*/
sjcd_send_6_cmd(SCMD_PLAY, mp);
return (sjcd_receive_status());
}
/*
* Tray control functions.
*/
static int sjcd_tray_close(void)
{
#if defined( SJCD_TRACE )
printk("SJCD: tray_close\n");
#endif
sjcd_send_cmd(SCMD_CLOSE_TRAY);
return (sjcd_receive_status());
}
static int sjcd_tray_lock(void)
{
#if defined( SJCD_TRACE )
printk("SJCD: tray_lock\n");
#endif
sjcd_send_cmd(SCMD_LOCK_TRAY);
return (sjcd_receive_status());
}
static int sjcd_tray_unlock(void)
{
#if defined( SJCD_TRACE )
printk("SJCD: tray_unlock\n");
#endif
sjcd_send_cmd(SCMD_UNLOCK_TRAY);
return (sjcd_receive_status());
}
static int sjcd_tray_open(void)
{
#if defined( SJCD_TRACE )
printk("SJCD: tray_open\n");
#endif
sjcd_send_cmd(SCMD_EJECT_TRAY);
return (sjcd_receive_status());
}
/*
* Do some user commands.
*/
static int sjcd_ioctl(struct inode *ip, struct file *fp,
unsigned int cmd, unsigned long arg)
{
void __user *argp = (void __user *)arg;
#if defined( SJCD_TRACE )
printk("SJCD:ioctl\n");
#endif
sjcd_get_status();
if (!sjcd_status_valid)
return (-EIO);
if (sjcd_update_toc() < 0)
return (-EIO);
switch (cmd) {
case CDROMSTART:{
#if defined( SJCD_TRACE )
printk("SJCD: ioctl: start\n");
#endif
return (0);
}
case CDROMSTOP:{
#if defined( SJCD_TRACE )
printk("SJCD: ioctl: stop\n");
#endif
sjcd_send_cmd(SCMD_PAUSE);
(void) sjcd_receive_status();
sjcd_audio_status = CDROM_AUDIO_NO_STATUS;
return (0);
}
case CDROMPAUSE:{
struct sjcd_hw_qinfo q_info;
#if defined( SJCD_TRACE )
printk("SJCD: ioctl: pause\n");
#endif
if (sjcd_audio_status == CDROM_AUDIO_PLAY) {
sjcd_send_cmd(SCMD_PAUSE);
(void) sjcd_receive_status();
if (sjcd_get_q_info(&q_info) < 0) {
sjcd_audio_status =
CDROM_AUDIO_NO_STATUS;
} else {
sjcd_audio_status =
CDROM_AUDIO_PAUSED;
sjcd_playing.start = q_info.abs;
}
return (0);
} else
return (-EINVAL);
}
case CDROMRESUME:{
#if defined( SJCD_TRACE )
printk("SJCD: ioctl: resume\n");
#endif
if (sjcd_audio_status == CDROM_AUDIO_PAUSED) {
/*
* continue play starting at saved location
*/
if (sjcd_play(&sjcd_playing) < 0) {
sjcd_audio_status =
CDROM_AUDIO_ERROR;
return (-EIO);
} else {
sjcd_audio_status =
CDROM_AUDIO_PLAY;
return (0);
}
} else
return (-EINVAL);
}
case CDROMPLAYTRKIND:{
struct cdrom_ti ti;
int s = -EFAULT;
#if defined( SJCD_TRACE )
printk("SJCD: ioctl: playtrkind\n");
#endif
if (!copy_from_user(&ti, argp, sizeof(ti))) {
s = 0;
if (ti.cdti_trk0 < sjcd_first_track_no)
return (-EINVAL);
if (ti.cdti_trk1 > sjcd_last_track_no)
ti.cdti_trk1 = sjcd_last_track_no;
if (ti.cdti_trk0 > ti.cdti_trk1)
return (-EINVAL);
sjcd_playing.start =
sjcd_table_of_contents[ti.cdti_trk0].
un.track_msf;
sjcd_playing.end =
(ti.cdti_trk1 <
sjcd_last_track_no) ?
sjcd_table_of_contents[ti.cdti_trk1 +
1].un.
track_msf : sjcd_table_of_contents[0].
un.track_msf;
if (sjcd_play(&sjcd_playing) < 0) {
sjcd_audio_status =
CDROM_AUDIO_ERROR;
return (-EIO);
} else
sjcd_audio_status =
CDROM_AUDIO_PLAY;
}
return (s);
}
case CDROMPLAYMSF:{
struct cdrom_msf sjcd_msf;
int s;
#if defined( SJCD_TRACE )
printk("SJCD: ioctl: playmsf\n");
#endif
if ((s =
access_ok(VERIFY_READ, argp, sizeof(sjcd_msf))
? 0 : -EFAULT) == 0) {
if (sjcd_audio_status == CDROM_AUDIO_PLAY) {
sjcd_send_cmd(SCMD_PAUSE);
(void) sjcd_receive_status();
sjcd_audio_status =
CDROM_AUDIO_NO_STATUS;
}
if (copy_from_user(&sjcd_msf, argp,
sizeof(sjcd_msf)))
return (-EFAULT);
sjcd_playing.start.min =
bin2bcd(sjcd_msf.cdmsf_min0);
sjcd_playing.start.sec =
bin2bcd(sjcd_msf.cdmsf_sec0);
sjcd_playing.start.frame =
bin2bcd(sjcd_msf.cdmsf_frame0);
sjcd_playing.end.min =
bin2bcd(sjcd_msf.cdmsf_min1);
sjcd_playing.end.sec =
bin2bcd(sjcd_msf.cdmsf_sec1);
sjcd_playing.end.frame =
bin2bcd(sjcd_msf.cdmsf_frame1);
if (sjcd_play(&sjcd_playing) < 0) {
sjcd_audio_status =
CDROM_AUDIO_ERROR;
return (-EIO);
} else
sjcd_audio_status =
CDROM_AUDIO_PLAY;
}
return (s);
}
case CDROMREADTOCHDR:{
struct cdrom_tochdr toc_header;
#if defined (SJCD_TRACE )
printk("SJCD: ioctl: readtocheader\n");
#endif
toc_header.cdth_trk0 = sjcd_first_track_no;
toc_header.cdth_trk1 = sjcd_last_track_no;
if (copy_to_user(argp, &toc_header,
sizeof(toc_header)))
return -EFAULT;
return 0;
}
case CDROMREADTOCENTRY:{
struct cdrom_tocentry toc_entry;
int s;
#if defined( SJCD_TRACE )
printk("SJCD: ioctl: readtocentry\n");
#endif
if ((s =
access_ok(VERIFY_WRITE, argp, sizeof(toc_entry))
? 0 : -EFAULT) == 0) {
struct sjcd_hw_disk_info *tp;
if (copy_from_user(&toc_entry, argp,
sizeof(toc_entry)))
return (-EFAULT);
if (toc_entry.cdte_track == CDROM_LEADOUT)
tp = &sjcd_table_of_contents[0];
else if (toc_entry.cdte_track <
sjcd_first_track_no)
return (-EINVAL);
else if (toc_entry.cdte_track >
sjcd_last_track_no)
return (-EINVAL);
else
tp = &sjcd_table_of_contents
[toc_entry.cdte_track];
toc_entry.cdte_adr =
tp->track_control & 0x0F;
toc_entry.cdte_ctrl =
tp->track_control >> 4;
switch (toc_entry.cdte_format) {
case CDROM_LBA:
toc_entry.cdte_addr.lba =
msf2hsg(&(tp->un.track_msf));
break;
case CDROM_MSF:
toc_entry.cdte_addr.msf.minute =
bcd2bin(tp->un.track_msf.min);
toc_entry.cdte_addr.msf.second =
bcd2bin(tp->un.track_msf.sec);
toc_entry.cdte_addr.msf.frame =
bcd2bin(tp->un.track_msf.
frame);
break;
default:
return (-EINVAL);
}
if (copy_to_user(argp, &toc_entry,
sizeof(toc_entry)))
s = -EFAULT;
}
return (s);
}
case CDROMSUBCHNL:{
struct cdrom_subchnl subchnl;
int s;
#if defined( SJCD_TRACE )
printk("SJCD: ioctl: subchnl\n");
#endif
if ((s =
access_ok(VERIFY_WRITE, argp, sizeof(subchnl))
? 0 : -EFAULT) == 0) {
struct sjcd_hw_qinfo q_info;
if (copy_from_user(&subchnl, argp,
sizeof(subchnl)))
return (-EFAULT);
if (sjcd_get_q_info(&q_info) < 0)
return (-EIO);
subchnl.cdsc_audiostatus =
sjcd_audio_status;
subchnl.cdsc_adr =
q_info.track_control & 0x0F;
subchnl.cdsc_ctrl =
q_info.track_control >> 4;
subchnl.cdsc_trk =
bcd2bin(q_info.track_no);
subchnl.cdsc_ind = bcd2bin(q_info.x);
switch (subchnl.cdsc_format) {
case CDROM_LBA:
subchnl.cdsc_absaddr.lba =
msf2hsg(&(q_info.abs));
subchnl.cdsc_reladdr.lba =
msf2hsg(&(q_info.rel));
break;
case CDROM_MSF:
subchnl.cdsc_absaddr.msf.minute =
bcd2bin(q_info.abs.min);
subchnl.cdsc_absaddr.msf.second =
bcd2bin(q_info.abs.sec);
subchnl.cdsc_absaddr.msf.frame =
bcd2bin(q_info.abs.frame);
subchnl.cdsc_reladdr.msf.minute =
bcd2bin(q_info.rel.min);
subchnl.cdsc_reladdr.msf.second =
bcd2bin(q_info.rel.sec);
subchnl.cdsc_reladdr.msf.frame =
bcd2bin(q_info.rel.frame);
break;
default:
return (-EINVAL);
}
if (copy_to_user(argp, &subchnl,
sizeof(subchnl)))
s = -EFAULT;
}
return (s);
}
case CDROMVOLCTRL:{
struct cdrom_volctrl vol_ctrl;
int s;