patch-1.3.36 linux/drivers/block/aztcd.c
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- Lines: 2089
- Date:
Thu Jan 1 02:00:00 1970
- Orig file:
v1.3.35/linux/drivers/block/aztcd.c
- Orig date:
Mon Oct 16 18:38:22 1995
diff -u --recursive --new-file v1.3.35/linux/drivers/block/aztcd.c linux/drivers/block/aztcd.c
@@ -1,2088 +0,0 @@
-#define AZT_VERSION "1.80"
-/* $Id: aztcd.c,v 1.80 1995/10/11 19:35:03 root Exp root $
- linux/drivers/block/aztcd.c - AztechCD268 CDROM driver
-
- Copyright (C) 1994,1995 Werner Zimmermann (zimmerma@rz.fht-esslingen.de)
-
- based on Mitsumi CDROM driver by Martin Hariss and preworks by
- Eberhard Moenkeberg; contains contributions by Joe Nardone and Robby
- Schirmer.
-
- 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.
-
- HISTORY
- V0.0 Adaption to Adaptec CD268-01A Version 1.3
- Version is PRE_ALPHA, unresolved points:
- 1. I use busy wait instead of timer wait in STEN_LOW,DTEN_LOW
- thus driver causes CPU overhead and is very slow
- 2. could not find a way to stop the drive, when it is
- in data read mode, therefore I had to set
- msf.end.min/sec/frame to 0:0:1 (in azt_poll); so only one
- frame can be read in sequence, this is also the reason for
- 3. getting 'timeout in state 4' messages, but nevertheless
- it works
- W.Zimmermann, Oct. 31, 1994
- V0.1 Version is ALPHA, problems #2 and #3 resolved.
- W.Zimmermann, Nov. 3, 1994
- V0.2 Modification to some comments, debugging aids for partial test
- with Borland C under DOS eliminated. Timer interrupt wait
- STEN_LOW_WAIT additionally to busy wait for STEN_LOW implemented;
- use it only for the 'slow' commands (ACMD_GET_Q_CHANNEL, ACMD_
- SEEK_TO_LEAD_IN), all other commands are so 'fast', that busy
- waiting seems better to me than interrupt rescheduling.
- Besides that, when used in the wrong place, STEN_LOW_WAIT causes
- kernel panic.
- In function aztPlay command ACMD_PLAY_AUDIO added, should make
- audio functions work. The Aztech drive needs different commands
- to read data tracks and play audio tracks.
- W.Zimmermann, Nov. 8, 1994
- V0.3 Recognition of missing drive during boot up improved (speeded up).
- W.Zimmermann, Nov. 13, 1994
- V0.35 Rewrote the control mechanism in azt_poll (formerly mcd_poll)
- including removal of all 'goto' commands. :-);
- J. Nardone, Nov. 14, 1994
- V0.4 Renamed variables and constants to 'azt' instead of 'mcd'; had
- to make some "compatibility" defines in azt.h; please note,
- that the source file was renamed to azt.c, the include file to
- azt.h
- Speeded up drive recognition during init (will be a little bit
- slower than before if no drive is installed!); suggested by
- Robby Schirmer.
- read_count declared volatile and set to AZT_BUF_SIZ to make
- drive faster (now 300kB/sec, was 60kB/sec before, measured
- by 'time dd if=/dev/cdrom of=/dev/null bs=2048 count=4096';
- different AZT_BUF_SIZes were test, above 16 no further im-
- provement seems to be possible; suggested by E.Moenkeberg.
- W.Zimmermann, Nov. 18, 1994
- V0.42 Included getAztStatus command in GetQChannelInfo() to allow
- reading Q-channel info on audio disks, if drive is stopped,
- and some other bug fixes in the audio stuff, suggested by
- Robby Schirmer.
- Added more ioctls (reading data in mode 1 and mode 2).
- Completely removed the old azt_poll() routine.
- Detection of ORCHID CDS-3110 in aztcd_init implemented.
- Additional debugging aids (see the readme file).
- W.Zimmermann, Dec. 9, 1994
- V0.50 Autodetection of drives implemented.
- W.Zimmermann, Dec. 12, 1994
- V0.52 Prepared for including in the standard kernel, renamed most
- variables to contain 'azt', included autoconf.h
- W.Zimmermann, Dec. 16, 1994
- V0.6 Version for being included in the standard Linux kernel.
- Renamed source and header file to aztcd.c and aztcd.h
- W.Zimmermann, Dec. 24, 1994
- V0.7 Changed VERIFY_READ to VERIFY_WRITE in aztcd_ioctl, case
- CDROMREADMODE1 and CDROMREADMODE2; bug fix in the ioctl,
- which causes kernel crashes when playing audio, changed
- include-files (config.h instead of autoconf.h, removed
- delay.h)
- W.Zimmermann, Jan. 8, 1995
- V0.72 Some more modifications for adaption to the standard kernel.
- W.Zimmermann, Jan. 16, 1995
- V0.80 aztcd is now part of the standard kernel since version 1.1.83.
- Modified the SET_TIMER and CLEAR_TIMER macros to comply with
- the new timer scheme.
- W.Zimmermann, Jan. 21, 1995
- V0.90 Included CDROMVOLCTRL, but with my Aztech drive I can only turn
- the channels on and off. If it works better with your drive,
- please mail me. Also implemented ACMD_CLOSE for CDROMSTART.
- W.Zimmermann, Jan. 24, 1995
- V1.00 Implemented close and lock tray commands. Patches supplied by
- Frank Racis
- Added support for loadable MODULEs, so aztcd can now also be
- loaded by insmod and removed by rmmod during run time
- Werner Zimmermann, Mar. 24, 95
- V1.10 Implemented soundcard configuration for Orchid CDS-3110 drives
- connected to Soundwave32 cards. Release for LST 2.1.
- (still experimental)
- Werner Zimmermann, May 8, 95
- V1.20 Implemented limited support for DOSEMU0.60's cdrom.c. Now it works, but
- sometimes DOSEMU may hang for 30 seconds or so. A fully functional ver-
- sion needs an update of Dosemu0.60's cdrom.c, which will come with the
- next revision of Dosemu.
- Also Soundwave32 support now works.
- Werner Zimmermann, May 22, 95
- V1.30 Auto-eject feature. Inspired by Franc Racis (racis@psu.edu)
- Werner Zimmermann, July 4, 95
- V1.40 Started multisession support. Implementation copied from mcdx.c
- by Heiko Schlittermann. Not tested yet.
- Werner Zimmermann, July 15, 95
- V1.50 Implementation of ioctl CDROMRESET, continued multisession, began
- XA, but still untested. Heavy modifications to drive status de-
- tection.
- Werner Zimmermann, July 25, 95
- V1.60 XA support now should work. Speeded up drive recognition in cases,
- where no drive is installed.
- Werner Zimmermann, August 8, 1995
- V1.70 Multisession support now is completed, but there is still not
- enough testing done. If you can test it, please contact me. For
- details please read README.aztcd.
- Werner Zimmermann, August 19, 1995
- V1.80 Modification to suit the new kernel boot procedure introduced
- with kernel 1.3.33. Will definitely not work with older kernels.
- Programming done by Linus himself.
- Werner Zimmermann, October 11, 1995
- NOTE:
- Points marked with ??? are questionable !
-*/
-#include <linux/major.h>
-#include <linux/config.h>
-
-#ifdef MODULE
-# include <linux/module.h>
-# include <linux/version.h>
-# ifndef CONFIG_MODVERSIONS
- char kernel_version[]= UTS_RELEASE;
-# endif
-#define aztcd_init init_module
-#endif
-
-#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 <asm/system.h>
-#include <asm/io.h>
-#include <asm/segment.h>
-
-#define MAJOR_NR AZTECH_CDROM_MAJOR
-
-#include "blk.h"
-
-#ifdef MODULE
-#else
-# define MOD_INC_USE_COUNT
-# define MOD_DEC_USE_COUNT
-#endif
-
-#include <linux/aztcd.h>
-
-#define SET_TIMER(func, jifs) delay_timer.expires = jiffies + (jifs); \
- delay_timer.function = (void *) (func); \
- add_timer(&delay_timer);
-
-#define CLEAR_TIMER del_timer(&delay_timer);
-
-#define RETURNM(message,value) {printk("aztcd: Warning: %s failed\n",message);\
- return value;}
-#define RETURN(message) {printk("aztcd: Warning: %s failed\n",message);\
- return;}
-
-static int aztPresent = 0;
-
-#if 0
-#define AZT_TEST
-#define AZT_TEST1 /* <int-..> */
-#define AZT_TEST2 /* do_aztcd_request */
-#define AZT_TEST3 /* AZT_S_state */
-#define AZT_TEST4 /* QUICK_LOOP-counter */
-#define AZT_TEST5 /* port(1) state */
-#define AZT_DEBUG
-#define AZT_DEBUG_MULTISESSION
-#endif
-
-#define CURRENT_VALID \
- (CURRENT && MAJOR(CURRENT -> rq_dev) == MAJOR_NR && CURRENT -> cmd == READ \
- && CURRENT -> sector != -1)
-
-#define AFL_STATUSorDATA (AFL_STATUS | AFL_DATA)
-#define AZT_BUF_SIZ 16
-
-static volatile int azt_transfer_is_active=0;
-
-static char azt_buf[CD_FRAMESIZE_RAW*AZT_BUF_SIZ];/*buffer for block size conversion*/
-#if AZT_PRIVATE_IOCTLS
-static char buf[CD_FRAMESIZE_RAW]; /*separate buffer for the ioctls*/
-#endif
-
-static volatile int azt_buf_bn[AZT_BUF_SIZ], azt_next_bn;
-static volatile int azt_buf_in, azt_buf_out = -1;
-static volatile int azt_error=0;
-static int azt_open_count=0;
-enum azt_state_e
-{ AZT_S_IDLE, /* 0 */
- AZT_S_START, /* 1 */
- AZT_S_MODE, /* 2 */
- AZT_S_READ, /* 3 */
- AZT_S_DATA, /* 4 */
- AZT_S_STOP, /* 5 */
- AZT_S_STOPPING /* 6 */
-};
-static volatile enum azt_state_e azt_state = AZT_S_IDLE;
-#ifdef AZT_TEST3
-static volatile enum azt_state_e azt_state_old = AZT_S_STOP;
-static volatile int azt_st_old = 0;
-#endif
-enum azt_read_modes
-{ AZT_MODE_0, /*read mode for audio disks, not supported by Aztech firmware*/
- AZT_MODE_1, /*read mode for normal CD-ROMs*/
- AZT_MODE_2 /*read mode for XA CD-ROMs*/
-};
-static volatile enum azt_read_modes azt_read_mode = AZT_MODE_1;
-
-static int azt_mode = -1;
-static volatile int azt_read_count = 1;
-
-#define READ_TIMEOUT 3000
-
-#define azt_port aztcd /*needed for the modutils*/
-static short azt_port = AZT_BASE_ADDR;
-
-static char azt_cont = 0;
-static char azt_init_end = 0;
-static char azt_auto_eject = AZT_AUTO_EJECT;
-
-static int AztTimeout, AztTries;
-static struct wait_queue *azt_waitq = NULL;
-static struct timer_list delay_timer = { NULL, NULL, 0, 0, NULL };
-
-static struct azt_DiskInfo DiskInfo;
-static struct azt_Toc Toc[MAX_TRACKS];
-static struct azt_Play_msf azt_Play;
-
-static int aztAudioStatus = CDROM_AUDIO_NO_STATUS;
-static char aztDiskChanged = 1;
-static char aztTocUpToDate = 0;
-
-static void azt_transfer(void);
-static void azt_poll(void);
-static void azt_invalidate_buffers(void);
-static void do_aztcd_request(void);
-static void azt_hsg2msf(long hsg, struct msf *msf);
-static void azt_bin2bcd(unsigned char *p);
-static int azt_bcd2bin(unsigned char bcd);
-static int aztStatus(void);
-static int getAztStatus(void);
-static int aztSendCmd(int cmd);
-static int sendAztCmd(int cmd, struct azt_Play_msf *params);
-static int aztGetQChannelInfo(struct azt_Toc *qp);
-static int aztUpdateToc(void);
-static int aztGetDiskInfo(void);
-#if AZT_MULTISESSION
- static int aztGetMultiDiskInfo(void);
-#endif
-static int aztGetToc(int multi);
-static int aztGetValue(unsigned char *result);
-static void aztStatTimer(void);
-static void aztCloseDoor(void);
-static void aztLockDoor(void);
-static void aztUnlockDoor(void);
-
-static unsigned char aztIndatum;
-static unsigned long aztTimeOutCount;
-static int aztCmd = 0;
-
-/* Macros for the drive hardware interface handshake, these macros use
- busy waiting */
-/* Wait for OP_OK = drive answers with AFL_OP_OK after receiving a command*/
-# define OP_OK op_ok()
-void op_ok(void)
-{ aztTimeOutCount=0;
- do { aztIndatum=inb(DATA_PORT);
- aztTimeOutCount++;
- if (aztTimeOutCount>=AZT_TIMEOUT)
- { printk("aztcd: Error Wait OP_OK\n");
- break;
- }
- } while (aztIndatum!=AFL_OP_OK);
-}
-
-/* Wait for PA_OK = drive answers with AFL_PA_OK after receiving parameters*/
-# define PA_OK pa_ok()
-void pa_ok(void)
-{ aztTimeOutCount=0;
- do { aztIndatum=inb(DATA_PORT);
- aztTimeOutCount++;
- if (aztTimeOutCount>=AZT_TIMEOUT)
- { printk("aztcd: Error Wait PA_OK\n");
- break;
- }
- } while (aztIndatum!=AFL_PA_OK);
-}
-
-/* Wait for STEN=Low = handshake signal 'AFL_.._OK available or command executed*/
-# define STEN_LOW sten_low()
-void sten_low(void)
-{ aztTimeOutCount=0;
- do { aztIndatum=inb(STATUS_PORT);
- aztTimeOutCount++;
- if (aztTimeOutCount>=AZT_TIMEOUT)
- { if (azt_init_end) printk("aztcd: Error Wait STEN_LOW commands:%x\n",aztCmd);
- break;
- }
- } while (aztIndatum&AFL_STATUS);
-}
-
-/* Wait for DTEN=Low = handshake signal 'Data available'*/
-# define DTEN_LOW dten_low()
-void dten_low(void)
-{ aztTimeOutCount=0;
- do { aztIndatum=inb(STATUS_PORT);
- aztTimeOutCount++;
- if (aztTimeOutCount>=AZT_TIMEOUT)
- { printk("aztcd: Error Wait DTEN_OK\n");
- break;
- }
- } while (aztIndatum&AFL_DATA);
-}
-
-/*
- * Macro for timer wait on STEN=Low, should only be used for 'slow' commands;
- * may cause kernel panic when used in the wrong place
-*/
-#define STEN_LOW_WAIT statusAzt()
-void statusAzt(void)
-{ AztTimeout = AZT_STATUS_DELAY;
- SET_TIMER(aztStatTimer, HZ/100);
- sleep_on(&azt_waitq);
- if (AztTimeout <= 0) printk("aztcd: Error Wait STEN_LOW_WAIT command:%x\n",aztCmd);
- return;
-}
-
-static void aztStatTimer(void)
-{ if (!(inb(STATUS_PORT) & AFL_STATUS))
- { wake_up(&azt_waitq);
- return;
- }
- AztTimeout--;
- if (AztTimeout <= 0)
- { wake_up(&azt_waitq);
- printk("aztcd: Error aztStatTimer: Timeout\n");
- return;
- }
- SET_TIMER(aztStatTimer, HZ/100);
-}
-
-void aztcd_setup(char *str, int *ints)
-{ if (ints[0] > 0)
- azt_port = ints[1];
- if (ints[0] > 1)
- azt_cont = ints[2];
-}
-
-/*
- * Subroutines to automatically close the door (tray) and
- * lock it closed when the cd is mounted. Leave the tray
- * locking as an option
- */
-static void aztCloseDoor(void)
-{
- aztSendCmd(ACMD_CLOSE);
- STEN_LOW;
- return;
-}
-
-static void aztLockDoor(void)
-{
-#if AZT_ALLOW_TRAY_LOCK
- aztSendCmd(ACMD_LOCK);
- STEN_LOW;
-#endif
- return;
-}
-
-static void aztUnlockDoor(void)
-{
-#if AZT_ALLOW_TRAY_LOCK
- aztSendCmd(ACMD_UNLOCK);
- STEN_LOW;
-#endif
- return;
-}
-
-/*
- * Send a single command, return -1 on error, else 0
-*/
-static int aztSendCmd(int cmd)
-{ unsigned char data;
- int retry;
-
-#ifdef AZT_DEBUG
- printk("aztcd: Executing command %x\n",cmd);
-#endif
- aztCmd=cmd;
- outb(POLLED,MODE_PORT);
- do { if (inb(STATUS_PORT)&AFL_STATUS) break;
- inb(DATA_PORT); /* if status left from last command, read and */
- } while (1); /* discard it */
- do { if (inb(STATUS_PORT)&AFL_DATA) break;
- inb(DATA_PORT); /* if data left from last command, read and */
- } while (1); /* discard it */
- for (retry=0;retry<AZT_RETRY_ATTEMPTS;retry++)
- { outb((unsigned char) cmd,CMD_PORT);
- STEN_LOW;
- data=inb(DATA_PORT);
- if (data==AFL_OP_OK)
- { return 0;} /*OP_OK?*/
- if (data==AFL_OP_ERR)
- { STEN_LOW;
- data=inb(DATA_PORT);
- printk("### Error 1 aztcd: aztSendCmd %x Error Code %x\n",cmd,data);
- }
- }
- if (retry>=AZT_RETRY_ATTEMPTS)
- { printk("### Error 2 aztcd: aztSendCmd %x \n",cmd);
- azt_error=0xA5;
- }
- RETURNM("aztSendCmd",-1);
-}
-
-/*
- * Send a play or read command to the drive, return -1 on error, else 0
-*/
-static int sendAztCmd(int cmd, struct azt_Play_msf *params)
-{ unsigned char data;
- int retry;
-
-#ifdef AZT_DEBUG
- printk("aztcd: play start=%02x:%02x:%02x end=%02x:%02x:%02x\n", \
- params->start.min, params->start.sec, params->start.frame, \
- params->end.min, params->end.sec, params->end.frame);
-#endif
- for (retry=0;retry<AZT_RETRY_ATTEMPTS;retry++)
- { aztSendCmd(cmd);
- outb(params -> start.min,CMD_PORT);
- outb(params -> start.sec,CMD_PORT);
- outb(params -> start.frame,CMD_PORT);
- outb(params -> end.min,CMD_PORT);
- outb(params -> end.sec,CMD_PORT);
- outb(params -> end.frame,CMD_PORT);
- STEN_LOW;
- data=inb(DATA_PORT);
- if (data==AFL_PA_OK)
- { return 0;} /*PA_OK ?*/
- if (data==AFL_PA_ERR)
- { STEN_LOW;
- data=inb(DATA_PORT);
- printk("### Error 1 aztcd: sendAztCmd %x Error Code %x\n",cmd,data);
- }
- }
- if (retry>=AZT_RETRY_ATTEMPTS)
- { printk("### Error 2 aztcd: sendAztCmd %x\n ",cmd);
- azt_error=0xA5;
- }
- RETURNM("sendAztCmd",-1);
-}
-
-/*
- * Send a seek command to the drive, return -1 on error, else 0
-*/
-static int aztSeek(struct azt_Play_msf *params)
-{ unsigned char data;
- int retry;
-
-#ifdef AZT_DEBUG
- printk("aztcd: aztSeek %02x:%02x:%02x\n", \
- params->start.min, params->start.sec, params->start.frame);
-#endif
- for (retry=0;retry<AZT_RETRY_ATTEMPTS;retry++)
- { aztSendCmd(ACMD_SEEK);
- outb(params -> start.min,CMD_PORT);
- outb(params -> start.sec,CMD_PORT);
- outb(params -> start.frame,CMD_PORT);
- STEN_LOW;
- data=inb(DATA_PORT);
- if (data==AFL_PA_OK)
- { return 0;} /*PA_OK ?*/
- if (data==AFL_PA_ERR)
- { STEN_LOW;
- data=inb(DATA_PORT);
- printk("### Error 1 aztcd: aztSeek\n");
- }
- }
- if (retry>=AZT_RETRY_ATTEMPTS)
- { printk("### Error 2 aztcd: aztSeek\n ");
- azt_error=0xA5;
- }
- RETURNM("aztSeek",-1);
-}
-
-/* Send a Set Disk Type command
- does not seem to work with Aztech drives, behavior is completely indepen-
- dent on which mode is set ???
-*/
-static int aztSetDiskType(int type)
-{ unsigned char data;
- int retry;
-
-#ifdef AZT_DEBUG
- printk("aztcd: set disk type command: type= %i\n",type);
-#endif
- for (retry=0;retry<AZT_RETRY_ATTEMPTS;retry++)
- { aztSendCmd(ACMD_SET_DISK_TYPE);
- outb(type,CMD_PORT);
- STEN_LOW;
- data=inb(DATA_PORT);
- if (data==AFL_PA_OK) /*PA_OK ?*/
- { azt_read_mode=type;
- return 0;
- }
- if (data==AFL_PA_ERR)
- { STEN_LOW;
- data=inb(DATA_PORT);
- printk("### Error 1 aztcd: aztSetDiskType %x Error Code %x\n",type,data);
- }
- }
- if (retry>=AZT_RETRY_ATTEMPTS)
- { printk("### Error 2 aztcd: aztSetDiskType %x\n ",type);
- azt_error=0xA5;
- }
- RETURNM("aztSetDiskType",-1);
-}
-
-
-/*
- * Checking if the media has been changed not yet implemented
-*/
-static int check_aztcd_media_change(kdev_t full_dev)
-{ return 0;
-}
-
-
-/* used in azt_poll to poll the status, expects another program to issue a
- * ACMD_GET_STATUS directly before
- */
-static int aztStatus(void)
-{ int st;
-/* int i;
-
- i = inb(STATUS_PORT) & AFL_STATUS; is STEN=0? ???
- if (!i)
-*/ STEN_LOW;
- if (aztTimeOutCount<AZT_TIMEOUT)
- { st = inb(DATA_PORT) & 0xFF;
- return st;
- }
- else
- RETURNM("aztStatus",-1);
-}
-
-/*
- * Get the drive status
- */
-static int getAztStatus(void)
-{ int st;
-
- if (aztSendCmd(ACMD_GET_STATUS)) RETURNM("getAztStatus 1",-1);
- STEN_LOW;
- st = inb(DATA_PORT) & 0xFF;
-#ifdef AZT_DEBUG
- printk("aztcd: Status = %x\n",st);
-#endif
- if ((st == 0xFF)||(st&AST_CMD_CHECK))
- { printk("aztcd: AST_CMD_CHECK error or no status available\n");
- return -1;
- }
-
- if (((st&AST_MODE_BITS)!=AST_BUSY) && (aztAudioStatus == CDROM_AUDIO_PLAY))
- /* XXX might be an error? look at q-channel? */
- aztAudioStatus = CDROM_AUDIO_COMPLETED;
-
- if ((st & AST_DSK_CHG)||(st & AST_NOT_READY))
- { aztDiskChanged = 1;
- aztTocUpToDate = 0;
- aztAudioStatus = CDROM_AUDIO_NO_STATUS;
- }
- return st;
-}
-
-
-/*
- * Send a 'Play' command and get the status. Use only from the top half.
- */
-static int aztPlay(struct azt_Play_msf *arg)
-{ if (sendAztCmd(ACMD_PLAY_AUDIO, arg) < 0) RETURNM("aztPlay",-1);
- return 0;
-}
-
-
-long azt_msf2hsg(struct msf *mp)
-{ return azt_bcd2bin(mp -> frame) + azt_bcd2bin(mp -> sec) * 75
- + azt_bcd2bin(mp -> min) * 4500 - CD_BLOCK_OFFSET;
-}
-
-static int aztcd_ioctl(struct inode *ip, struct file *fp, unsigned int cmd, unsigned long arg)
-{ int i, st;
- struct azt_Toc qInfo;
- struct cdrom_ti ti;
- struct cdrom_tochdr tocHdr;
- struct cdrom_msf msf;
- struct cdrom_tocentry entry;
- struct azt_Toc *tocPtr;
- struct cdrom_subchnl subchnl;
- struct cdrom_volctrl volctrl;
-
-#ifdef AZT_DEBUG
- printk("aztcd: starting aztcd_ioctl - Command:%x Time: %li\n",cmd, jiffies);
- printk("aztcd Status %x\n", getAztStatus());
-#endif
- if (!ip) RETURNM("aztcd_ioctl 1",-EINVAL);
- if (getAztStatus()<0) RETURNM("aztcd_ioctl 2", -EIO);
- if ((!aztTocUpToDate)||(aztDiskChanged))
- { if ((i=aztUpdateToc())<0) RETURNM("aztcd_ioctl 3", i); /* error reading TOC */
- }
-
- switch (cmd)
- {
- case CDROMSTART: /* Spin up the drive. Don't know, what to do,
- at least close the tray */
-#if AZT_PRIVATE_IOCTLS
- if (aztSendCmd(ACMD_CLOSE)) RETURNM("aztcd_ioctl 4",-1);
- STEN_LOW_WAIT;
-#endif
- break;
- case CDROMSTOP: /* Spin down the drive */
- if (aztSendCmd(ACMD_STOP)) RETURNM("aztcd_ioctl 5",-1);
- STEN_LOW_WAIT;
- /* should we do anything if it fails? */
- aztAudioStatus = CDROM_AUDIO_NO_STATUS;
- break;
- case CDROMPAUSE: /* Pause the drive */
- if (aztAudioStatus != CDROM_AUDIO_PLAY) return -EINVAL;
-
- if (aztGetQChannelInfo(&qInfo) < 0)
- { /* didn't get q channel info */
- aztAudioStatus = CDROM_AUDIO_NO_STATUS;
- RETURNM("aztcd_ioctl 7",0);
- }
- azt_Play.start = qInfo.diskTime; /* remember restart point */
-
- if (aztSendCmd(ACMD_PAUSE)) RETURNM("aztcd_ioctl 8",-1);
- STEN_LOW_WAIT;
- aztAudioStatus = CDROM_AUDIO_PAUSED;
- break;
- case CDROMRESUME: /* Play it again, Sam */
- if (aztAudioStatus != CDROM_AUDIO_PAUSED) return -EINVAL;
- /* restart the drive at the saved position. */
- i = aztPlay(&azt_Play);
- if (i < 0)
- { aztAudioStatus = CDROM_AUDIO_ERROR;
- return -EIO;
- }
- aztAudioStatus = CDROM_AUDIO_PLAY;
- break;
- case CDROMMULTISESSION: /*multisession support -- experimental*/
- { struct cdrom_multisession ms;
-#ifdef AZT_DEBUG
- printk("aztcd ioctl MULTISESSION\n");
-#endif
- st = verify_area(VERIFY_READ, (void*) arg, sizeof(struct cdrom_multisession));
- if (st) return st;
- memcpy_fromfs(&ms, (void*) arg, sizeof(struct cdrom_multisession));
- if (ms.addr_format == CDROM_MSF)
- { ms.addr.msf.minute = azt_bcd2bin(DiskInfo.lastSession.min);
- ms.addr.msf.second = azt_bcd2bin(DiskInfo.lastSession.sec);
- ms.addr.msf.frame = azt_bcd2bin(DiskInfo.lastSession.frame);
- }
- else if (ms.addr_format == CDROM_LBA)
- ms.addr.lba = azt_msf2hsg(&DiskInfo.lastSession);
- else
- return -EINVAL;
- ms.xa_flag = DiskInfo.xa;
- st = verify_area(VERIFY_WRITE, (void*) arg, sizeof(struct cdrom_multisession));
- if (st) return st;
- memcpy_tofs((void*) arg, &ms, sizeof(struct cdrom_multisession));
-#ifdef AZT_DEBUG
- if (ms.addr_format == CDROM_MSF)
- printk("aztcd multisession xa:%d, msf:%02x:%02x.%02x [%02x:%02x.%02x])\n",
- ms.xa_flag, ms.addr.msf.minute, ms.addr.msf.second,
- ms.addr.msf.frame, DiskInfo.lastSession.min,
- DiskInfo.lastSession.sec, DiskInfo.lastSession.frame);
- else
- printk("atzcd multisession %d, lba:0x%08x [%02x:%02x.%02x])\n",
- ms.xa_flag, ms.addr.lba, DiskInfo.lastSession.min,
- DiskInfo.lastSession.sec, DiskInfo.lastSession.frame);
-#endif
- return 0;
- }
- case CDROMPLAYTRKIND: /* Play a track. This currently ignores index. */
- st = verify_area(VERIFY_READ, (void *) arg, sizeof ti);
- if (st) return st;
- memcpy_fromfs(&ti, (void *) arg, sizeof ti);
- if (ti.cdti_trk0 < DiskInfo.first
- || ti.cdti_trk0 > DiskInfo.last
- || ti.cdti_trk1 < ti.cdti_trk0)
- { return -EINVAL;
- }
- if (ti.cdti_trk1 > DiskInfo.last)
- ti.cdti_trk1 = DiskInfo.last;
- azt_Play.start = Toc[ti.cdti_trk0].diskTime;
- azt_Play.end = Toc[ti.cdti_trk1 + 1].diskTime;
-#ifdef AZT_DEBUG
-printk("aztcd play: %02x:%02x.%02x to %02x:%02x.%02x\n",
- azt_Play.start.min, azt_Play.start.sec, azt_Play.start.frame,
- azt_Play.end.min, azt_Play.end.sec, azt_Play.end.frame);
-#endif
- i = aztPlay(&azt_Play);
- if (i < 0)
- { aztAudioStatus = CDROM_AUDIO_ERROR;
- return -EIO;
- }
- aztAudioStatus = CDROM_AUDIO_PLAY;
- break;
- case CDROMPLAYMSF: /* Play starting at the given MSF address. */
-/* if (aztAudioStatus == CDROM_AUDIO_PLAY)
- { if (aztSendCmd(ACMD_STOP)) RETURNM("aztcd_ioctl 9",-1);
- STEN_LOW;
- aztAudioStatus = CDROM_AUDIO_NO_STATUS;
- }
-*/
- st = verify_area(VERIFY_READ, (void *) arg, sizeof msf);
- if (st) return st;
- memcpy_fromfs(&msf, (void *) arg, sizeof msf);
- /* convert to bcd */
- azt_bin2bcd(&msf.cdmsf_min0);
- azt_bin2bcd(&msf.cdmsf_sec0);
- azt_bin2bcd(&msf.cdmsf_frame0);
- azt_bin2bcd(&msf.cdmsf_min1);
- azt_bin2bcd(&msf.cdmsf_sec1);
- azt_bin2bcd(&msf.cdmsf_frame1);
- azt_Play.start.min = msf.cdmsf_min0;
- azt_Play.start.sec = msf.cdmsf_sec0;
- azt_Play.start.frame = msf.cdmsf_frame0;
- azt_Play.end.min = msf.cdmsf_min1;
- azt_Play.end.sec = msf.cdmsf_sec1;
- azt_Play.end.frame = msf.cdmsf_frame1;
-#ifdef AZT_DEBUG
-printk("aztcd play: %02x:%02x.%02x to %02x:%02x.%02x\n",
-azt_Play.start.min, azt_Play.start.sec, azt_Play.start.frame,
-azt_Play.end.min, azt_Play.end.sec, azt_Play.end.frame);
-#endif
- i = aztPlay(&azt_Play);
- if (i < 0)
- { aztAudioStatus = CDROM_AUDIO_ERROR;
- return -EIO;
- }
- aztAudioStatus = CDROM_AUDIO_PLAY;
- break;
-
- case CDROMREADTOCHDR: /* Read the table of contents header */
- st = verify_area(VERIFY_WRITE, (void *) arg, sizeof tocHdr);
- if (st) return st;
- tocHdr.cdth_trk0 = DiskInfo.first;
- tocHdr.cdth_trk1 = DiskInfo.last;
- memcpy_tofs((void *) arg, &tocHdr, sizeof tocHdr);
- break;
- case CDROMREADTOCENTRY: /* Read an entry in the table of contents */
- st = verify_area(VERIFY_READ, (void *) arg, sizeof entry);
- if (st) return st;
- st = verify_area(VERIFY_WRITE, (void *) arg, sizeof entry);
- if (st) return st;
- memcpy_fromfs(&entry, (void *) arg, sizeof entry);
- if ((!aztTocUpToDate)||aztDiskChanged) aztUpdateToc();
- if (entry.cdte_track == CDROM_LEADOUT)
- tocPtr = &Toc[DiskInfo.last + 1]; /* ??? */
- else if (entry.cdte_track > DiskInfo.last
- || entry.cdte_track < DiskInfo.first)
- { return -EINVAL;
- }
- else
- tocPtr = &Toc[entry.cdte_track];
- entry.cdte_adr = tocPtr -> ctrl_addr;
- entry.cdte_ctrl = tocPtr -> ctrl_addr >> 4;
- if (entry.cdte_format == CDROM_LBA)
- entry.cdte_addr.lba = azt_msf2hsg(&tocPtr -> diskTime);
- else if (entry.cdte_format == CDROM_MSF)
- { entry.cdte_addr.msf.minute = azt_bcd2bin(tocPtr -> diskTime.min);
- entry.cdte_addr.msf.second = azt_bcd2bin(tocPtr -> diskTime.sec);
- entry.cdte_addr.msf.frame = azt_bcd2bin(tocPtr -> diskTime.frame);
- }
- else
- { return -EINVAL;
- }
- memcpy_tofs((void *) arg, &entry, sizeof entry);
- break;
- case CDROMSUBCHNL: /* Get subchannel info */
- st = verify_area(VERIFY_READ, (void *) arg, sizeof(struct cdrom_subchnl));
- if (st) {
-#ifdef AZT_DEBUG
- printk("aztcd: exiting aztcd_ioctl - Error 1 - Command:%x\n",cmd);
-#endif
- return st;
- }
- st = verify_area(VERIFY_WRITE, (void *) arg, sizeof(struct cdrom_subchnl));
- if (st) {
-#ifdef AZT_DEBUG
- printk("aztcd: exiting aztcd_ioctl - Error 2 - Command:%x\n",cmd);
-#endif
- return st;
- }
- memcpy_fromfs(&subchnl, (void *) arg, sizeof (struct cdrom_subchnl));
- if (aztGetQChannelInfo(&qInfo) < 0)
- if (st) {
-#ifdef AZT_DEBUG
- printk("aztcd: exiting aztcd_ioctl - Error 3 - Command:%x\n",cmd);
-#endif
- return -EIO;
- }
- subchnl.cdsc_audiostatus = aztAudioStatus;
- subchnl.cdsc_adr = qInfo.ctrl_addr;
- subchnl.cdsc_ctrl = qInfo.ctrl_addr >> 4;
- subchnl.cdsc_trk = azt_bcd2bin(qInfo.track);
- subchnl.cdsc_ind = azt_bcd2bin(qInfo.pointIndex);
- if (subchnl.cdsc_format == CDROM_LBA)
- { subchnl.cdsc_absaddr.lba = azt_msf2hsg(&qInfo.diskTime);
- subchnl.cdsc_reladdr.lba = azt_msf2hsg(&qInfo.trackTime);
- }
- else /*default*/
- { subchnl.cdsc_format = CDROM_MSF;
- subchnl.cdsc_absaddr.msf.minute = azt_bcd2bin(qInfo.diskTime.min);
- subchnl.cdsc_absaddr.msf.second = azt_bcd2bin(qInfo.diskTime.sec);
- subchnl.cdsc_absaddr.msf.frame = azt_bcd2bin(qInfo.diskTime.frame);
- subchnl.cdsc_reladdr.msf.minute = azt_bcd2bin(qInfo.trackTime.min);
- subchnl.cdsc_reladdr.msf.second = azt_bcd2bin(qInfo.trackTime.sec);
- subchnl.cdsc_reladdr.msf.frame = azt_bcd2bin(qInfo.trackTime.frame);
- }
- memcpy_tofs((void *) arg, &subchnl, sizeof (struct cdrom_subchnl));
- break;
- case CDROMVOLCTRL: /* Volume control
- * With my Aztech CD268-01A volume control does not work, I can only
- turn the channels on (any value !=0) or off (value==0). Maybe it
- works better with your drive */
- st=verify_area(VERIFY_READ,(void *) arg, sizeof(volctrl));
- if (st) return (st);
- memcpy_fromfs(&volctrl,(char *) arg,sizeof(volctrl));
- azt_Play.start.min = 0x21;
- azt_Play.start.sec = 0x84;
- azt_Play.start.frame = volctrl.channel0;
- azt_Play.end.min = volctrl.channel1;
- azt_Play.end.sec = volctrl.channel2;
- azt_Play.end.frame = volctrl.channel3;
- sendAztCmd(ACMD_SET_VOLUME, &azt_Play);
- STEN_LOW_WAIT;
- break;
- case CDROMEJECT:
- aztUnlockDoor(); /* Assume user knows what they're doing */
- /* all drives can at least stop! */
- if (aztAudioStatus == CDROM_AUDIO_PLAY)
- { if (aztSendCmd(ACMD_STOP)) RETURNM("azt_ioctl 10",-1);
- STEN_LOW_WAIT;
- }
- if (aztSendCmd(ACMD_EJECT)) RETURNM("azt_ioctl 11",-1);
- STEN_LOW_WAIT; /*???*/
- aztAudioStatus = CDROM_AUDIO_NO_STATUS;
- break;
- case CDROMEJECT_SW:
- azt_auto_eject = (char) arg;
- break;
- case CDROMRESET:
- outb(ACMD_SOFT_RESET,CMD_PORT); /*send reset*/
- STEN_LOW;
- if (inb(DATA_PORT)!=AFL_OP_OK) /*OP_OK?*/
- { printk("aztcd: AZTECH CD-ROM drive does not respond\n");
- }
- break;
-/*Take care, the following code is not compatible with other CD-ROM drivers,
- use it at your own risk with cdplay.c. Set AZT_PRIVATE_IOCTLS to 0 in aztcd.h,
- if you do not want to use it!
-*/
-#if AZT_PRIVATE_IOCTLS
- case CDROMREADCOOKED: /*read data in mode 1 (2048 Bytes)*/
- case CDROMREADRAW: /*read data in mode 2 (2336 Bytes)*/
- { st = verify_area(VERIFY_READ, (void *) arg, sizeof msf);
- if (st) return st;
- st = verify_area(VERIFY_WRITE, (void *) arg, sizeof buf);
- if (st) return st;
- memcpy_fromfs(&msf, (void *) arg, sizeof msf);
- /* convert to bcd */
- azt_bin2bcd(&msf.cdmsf_min0);
- azt_bin2bcd(&msf.cdmsf_sec0);
- azt_bin2bcd(&msf.cdmsf_frame0);
- msf.cdmsf_min1=0;
- msf.cdmsf_sec1=0;
- msf.cdmsf_frame1=1; /*read only one frame*/
- azt_Play.start.min = msf.cdmsf_min0;
- azt_Play.start.sec = msf.cdmsf_sec0;
- azt_Play.start.frame = msf.cdmsf_frame0;
- azt_Play.end.min = msf.cdmsf_min1;
- azt_Play.end.sec = msf.cdmsf_sec1;
- azt_Play.end.frame = msf.cdmsf_frame1;
- if (cmd==CDROMREADRAW)
- { if (DiskInfo.xa)
- { return -1; /*XA Disks can't be read raw*/
- }
- else
- { if (sendAztCmd(ACMD_PLAY_READ_RAW, &azt_Play)) return -1;
- DTEN_LOW;
- insb(DATA_PORT,buf,CD_FRAMESIZE_RAW);
- memcpy_tofs((void *) arg, &buf, CD_FRAMESIZE_RAW);
- }
- }
- else /*CDROMREADCOOKED*/
- { if (sendAztCmd(ACMD_PLAY_READ, &azt_Play)) return -1;
- DTEN_LOW;
- insb(DATA_PORT,buf,CD_FRAMESIZE);
- memcpy_tofs((void *) arg, &buf, CD_FRAMESIZE);
- }
- }
- break;
- case CDROMSEEK: /*seek msf address*/
- st = verify_area(VERIFY_READ, (void *) arg, sizeof msf);
- if (st) return st;
- memcpy_fromfs(&msf, (void *) arg, sizeof msf);
- /* convert to bcd */
- azt_bin2bcd(&msf.cdmsf_min0);
- azt_bin2bcd(&msf.cdmsf_sec0);
- azt_bin2bcd(&msf.cdmsf_frame0);
- azt_Play.start.min = msf.cdmsf_min0;
- azt_Play.start.sec = msf.cdmsf_sec0;
- azt_Play.start.frame = msf.cdmsf_frame0;
- if (aztSeek(&azt_Play)) return -1;
- break;
-#endif /*end of incompatible code*/
- case CDROMREADMODE1: /*set read data in mode 1*/
- return aztSetDiskType(AZT_MODE_1);
- case CDROMREADMODE2: /*set read data in mode 2*/
- return aztSetDiskType(AZT_MODE_2);
- default:
- return -EINVAL;
- }
-#ifdef AZT_DEBUG
- printk("aztcd: exiting aztcd_ioctl Command:%x Time:%li\n",cmd,jiffies);
-#endif
- return 0;
-}
-
-
-/*
- * Take care of the different block sizes between cdrom and Linux.
- * When Linux gets variable block sizes this will probably go away.
- */
-static void azt_transfer(void)
-{
-#ifdef AZT_TEST
- printk("aztcd: executing azt_transfer Time:%li\n",jiffies);
-#endif
- if (CURRENT_VALID) {
- while (CURRENT -> nr_sectors) {
- int bn = CURRENT -> sector / 4;
- int i;
- for (i = 0; i < AZT_BUF_SIZ && azt_buf_bn[i] != bn; ++i)
- ;
- if (i < AZT_BUF_SIZ) {
- int offs = (i * 4 + (CURRENT -> sector & 3)) * 512;
- int nr_sectors = 4 - (CURRENT -> sector & 3);
- if (azt_buf_out != i) {
- azt_buf_out = i;
- if (azt_buf_bn[i] != bn) {
- azt_buf_out = -1;
- continue;
- }
- }
- if (nr_sectors > CURRENT -> nr_sectors)
- nr_sectors = CURRENT -> nr_sectors;
- memcpy(CURRENT -> buffer, azt_buf + offs, nr_sectors * 512);
- CURRENT -> nr_sectors -= nr_sectors;
- CURRENT -> sector += nr_sectors;
- CURRENT -> buffer += nr_sectors * 512;
- } else {
- azt_buf_out = -1;
- break;
- }
- }
- }
-}
-
-
-static void do_aztcd_request(void)
-{
-#ifdef AZT_TEST
- printk(" do_aztcd_request(%ld+%ld) Time:%li\n", CURRENT -> sector, CURRENT -> nr_sectors,jiffies);
-#endif
- if (DiskInfo.audio)
- { printk("aztcd: Error, tried to mount an Audio CD\n");
- end_request(0);
- return;
- }
- azt_transfer_is_active = 1;
- while (CURRENT_VALID) {
- if (CURRENT->bh) {
- if (!CURRENT->bh->b_lock)
- panic(DEVICE_NAME ": block not locked");
- }
- azt_transfer();
- if (CURRENT -> nr_sectors == 0) {
- end_request(1);
- } else {
- azt_buf_out = -1; /* Want to read a block not in buffer */
- if (azt_state == AZT_S_IDLE) {
- if ((!aztTocUpToDate)||aztDiskChanged) {
- if (aztUpdateToc() < 0) {
- while (CURRENT_VALID)
- end_request(0);
- break;
- }
- }
- azt_state = AZT_S_START;
- AztTries = 5;
- SET_TIMER(azt_poll, HZ/100);
- }
- break;
- }
- }
- azt_transfer_is_active = 0;
-#ifdef AZT_TEST2
- printk("azt_next_bn:%x azt_buf_in:%x azt_buf_out:%x azt_buf_bn:%x\n", \
- azt_next_bn, azt_buf_in, azt_buf_out, azt_buf_bn[azt_buf_in]);
- printk(" do_aztcd_request ends Time:%li\n",jiffies);
-#endif
-}
-
-static void azt_poll(void)
-{
- int st = 0;
- int loop_ctl = 1;
- int skip = 0;
-
- if (azt_error) { /* ???*/
- if (aztSendCmd(ACMD_GET_ERROR)) RETURN("azt_poll 1");
- STEN_LOW;
- azt_error=inb(DATA_PORT)&0xFF;
- printk("aztcd: I/O error 0x%02x\n", azt_error);
- azt_invalidate_buffers();
-#ifdef WARN_IF_READ_FAILURE
- if (AztTries == 5)
- printk("aztcd: Read of Block %d Failed - Maybe Audio Disk?\n", azt_next_bn);
-#endif
- if (!AztTries--) {
- printk("aztcd: Read of Block %d Failed, Maybe Audio Disk? Giving up\n", azt_next_bn);
- if (azt_transfer_is_active) {
- AztTries = 0;
- loop_ctl = 0;
- }
- if (CURRENT_VALID)
- end_request(0);
- AztTries = 5;
- }
- azt_error = 0;
- azt_state = AZT_S_STOP;
- }
-
- while (loop_ctl)
- {
- loop_ctl = 0; /* each case must flip this back to 1 if we want
- to come back up here */
- switch (azt_state) {
-
- case AZT_S_IDLE:
-#ifdef AZT_TEST3
- if (azt_state!=azt_state_old) {
- azt_state_old=azt_state;
- printk("AZT_S_IDLE\n");
- }
-#endif
- return;
-
- case AZT_S_START:
-#ifdef AZT_TEST3
- if (azt_state!=azt_state_old) {
- azt_state_old=azt_state;
- printk("AZT_S_START\n");
- }
-#endif
- if(aztSendCmd(ACMD_GET_STATUS)) RETURN("azt_poll 2"); /*result will be checked by aztStatus() */
- azt_state = azt_mode == 1 ? AZT_S_READ : AZT_S_MODE;
- AztTimeout = 3000;
- break;
-
- case AZT_S_MODE:
-#ifdef AZT_TEST3
- if (azt_state!=azt_state_old) {
- azt_state_old=azt_state;
- printk("AZT_S_MODE\n");
- }
-#endif
- if (!skip) {
- if ((st = aztStatus()) != -1) {
- if ((st & AST_DSK_CHG)||(st & AST_NOT_READY)) {
- aztDiskChanged = 1;
- aztTocUpToDate = 0;
- azt_invalidate_buffers();
- end_request(0);
- printk("aztcd: Disk Changed or Not Ready 1 - Unmount Disk!\n");
- }
- } else break;
- }
- skip = 0;
-
- if ((st & AST_DOOR_OPEN)||(st & AST_NOT_READY)) {
- aztDiskChanged = 1;
- aztTocUpToDate = 0;
- printk("aztcd: Disk Changed or Not Ready 2 - Unmount Disk!\n");
- end_request(0);
- printk((st & AST_DOOR_OPEN) ? "aztcd: door open\n" : "aztcd: disk removed\n");
- if (azt_transfer_is_active) {
- azt_state = AZT_S_START;
- loop_ctl = 1; /* goto immediately */
- break;
- }
- azt_state = AZT_S_IDLE;
- while (CURRENT_VALID)
- end_request(0);
- return;
- }
- /*???*/
-/* if (aztSendCmd(ACMD_SET_MODE)) RETURN("azt_poll 3");
- outb(0x01, DATA_PORT);
- PA_OK;
- STEN_LOW;
-*/ if (aztSendCmd(ACMD_GET_STATUS)) RETURN("azt_poll 4");
- STEN_LOW; /*???*/
- azt_mode = 1;
- azt_state = AZT_S_READ;
- AztTimeout = 3000;
-
- break;
-
-
- case AZT_S_READ:
-#ifdef AZT_TEST3
- if (azt_state!=azt_state_old) {
- azt_state_old=azt_state;
- printk("AZT_S_READ\n");
- }
-#endif
- if (!skip) {
- if ((st = aztStatus()) != -1) {
- if ((st & AST_DSK_CHG)||(st & AST_NOT_READY)) {
- aztDiskChanged = 1;
- aztTocUpToDate = 0;
- azt_invalidate_buffers();
- printk("aztcd: Disk Changed or Not Ready 3 - Unmount Disk!\n");
- end_request(0);
- }
- } else break;
- }
-
- skip = 0;
- if ((st & AST_DOOR_OPEN)||(st & AST_NOT_READY)) {
- aztDiskChanged = 1;
- aztTocUpToDate = 0;
- printk((st & AST_DOOR_OPEN) ? "aztcd: door open\n" : "aztcd: disk removed\n");
- if (azt_transfer_is_active) {
- azt_state = AZT_S_START;
- loop_ctl = 1;
- break;
- }
- azt_state = AZT_S_IDLE;
- while (CURRENT_VALID)
- end_request(0);
- return;
- }
-
- if (CURRENT_VALID) {
- struct azt_Play_msf msf;
- azt_next_bn = CURRENT -> sector / 4;
- azt_hsg2msf(azt_next_bn, &msf.start);
- azt_read_count=AZT_BUF_SIZ; /*??? fast, because we read ahead*/
-/* azt_read_count= CURRENT->nr_sectors; slow
-*/
- msf.end.min = 0;
- msf.end.sec = 0;
- msf.end.frame = azt_read_count ;/*Mitsumi here reads 0xffffff sectors*/
-#ifdef AZT_TEST3
- printk("---reading msf-address %x:%x:%x %x:%x:%x\n",msf.start.min,msf.start.sec,msf.start.frame,msf.end.min,msf.end.sec,msf.end.frame);
- printk("azt_next_bn:%x azt_buf_in:%x azt_buf_out:%x azt_buf_bn:%x\n", \
- azt_next_bn, azt_buf_in, azt_buf_out, azt_buf_bn[azt_buf_in]);
-#endif
- if (azt_read_mode==AZT_MODE_2)
- { sendAztCmd(ACMD_PLAY_READ_RAW, &msf); /*XA disks in raw mode*/
- }
- else
- { sendAztCmd(ACMD_PLAY_READ, &msf); /*others in cooked mode*/
- }
- azt_state = AZT_S_DATA;
- AztTimeout = READ_TIMEOUT;
- } else {
- azt_state = AZT_S_STOP;
- loop_ctl = 1;
- break;
- }
-
- break;
-
-
- case AZT_S_DATA:
-#ifdef AZT_TEST3
- if (azt_state!=azt_state_old) {
- azt_state_old=azt_state;
- printk("AZT_S_DATA\n");
- }
-#endif
-
- st = inb(STATUS_PORT) & AFL_STATUSorDATA; /*???*/
-
- switch (st) {
-
- case AFL_DATA:
-#ifdef AZT_TEST3
- if (st!=azt_st_old) {
- azt_st_old=st;
- printk("---AFL_DATA st:%x\n",st);
- }
-#endif
- if (!AztTries--) {
- printk("aztcd: Read of Block %d Failed, Maybe Audio Disk ? Giving up\n", azt_next_bn);
- if (azt_transfer_is_active) {
- AztTries = 0;
- break;
- }
- if (CURRENT_VALID)
- end_request(0);
- AztTries = 5;
- }
- azt_state = AZT_S_START;
- AztTimeout = READ_TIMEOUT;
- loop_ctl = 1;
- break;
-
- case AFL_STATUSorDATA:
-#ifdef AZT_TEST3
- if (st!=azt_st_old) {
- azt_st_old=st;
- printk("---AFL_STATUSorDATA st:%x\n",st);
- }
-#endif
- break;
-
- default:
-#ifdef AZT_TEST3
- if (st!=azt_st_old) {
- azt_st_old=st;
- printk("---default: st:%x\n",st);
- }
-#endif
- AztTries = 5;
- if (!CURRENT_VALID && azt_buf_in == azt_buf_out) {
- azt_state = AZT_S_STOP;
- loop_ctl = 1;
- break;
- }
- if (azt_read_count<=0)
- printk("aztcd: warning - try to read 0 frames\n");
- while (azt_read_count) /*??? fast read ahead loop*/
- { azt_buf_bn[azt_buf_in] = -1;
- DTEN_LOW; /*??? unsolved problem, very
- seldom we get timeouts
- here, don't now the real
- reason. With my drive this
- sometimes also happens with
- Aztech's original driver under
- DOS. Is it a hardware bug?
- I tried to recover from such
- situations here. Zimmermann*/
- if (aztTimeOutCount>=AZT_TIMEOUT)
- { printk("read_count:%d CURRENT->nr_sectors:%ld azt_buf_in:%d\n", azt_read_count,CURRENT->nr_sectors,azt_buf_in);
- printk("azt_transfer_is_active:%x\n",azt_transfer_is_active);
- azt_read_count=0;
- azt_state = AZT_S_STOP;
- loop_ctl = 1;
- end_request(1); /*should we have here (1) or (0)? */
- }
- else
- { if (azt_read_mode==AZT_MODE_2)
- { insb(DATA_PORT, azt_buf + CD_FRAMESIZE_RAW * azt_buf_in, CD_FRAMESIZE_RAW);
- }
- else
- { insb(DATA_PORT, azt_buf + CD_FRAMESIZE * azt_buf_in, CD_FRAMESIZE);
- }
- azt_read_count--;
-#ifdef AZT_TEST3
- printk("AZT_S_DATA; ---I've read data- read_count: %d\n",azt_read_count);
- printk("azt_next_bn:%d azt_buf_in:%d azt_buf_out:%d azt_buf_bn:%d\n", \
- azt_next_bn, azt_buf_in, azt_buf_out, azt_buf_bn[azt_buf_in]);
-#endif
- azt_buf_bn[azt_buf_in] = azt_next_bn++;
- if (azt_buf_out == -1)
- azt_buf_out = azt_buf_in;
- azt_buf_in = azt_buf_in + 1 == AZT_BUF_SIZ ? 0 : azt_buf_in + 1;
- }
- }
- if (!azt_transfer_is_active) {
- while (CURRENT_VALID) {
- azt_transfer();
- if (CURRENT -> nr_sectors == 0)
- end_request(1);
- else
- break;
- }
- }
-
- if (CURRENT_VALID
- && (CURRENT -> sector / 4 < azt_next_bn ||
- CURRENT -> sector / 4 > azt_next_bn + AZT_BUF_SIZ)) {
- azt_state = AZT_S_STOP;
- loop_ctl = 1;
- break;
- }
- AztTimeout = READ_TIMEOUT;
- if (azt_read_count==0) {
- azt_state = AZT_S_STOP; /*???*/
- loop_ctl = 1;
- break;
- }
- break;
- }
- break;
-
-
- case AZT_S_STOP:
-#ifdef AZT_TEST3
- if (azt_state!=azt_state_old) {
- azt_state_old=azt_state;
- printk("AZT_S_STOP\n");
- }
-#endif
- if (azt_read_count!=0) printk("aztcd: discard data=%x frames\n",azt_read_count); /*???*/
- while (azt_read_count!=0) {
- int i;
- if ( !(inb(STATUS_PORT) & AFL_DATA) ) {
- if (azt_read_mode==AZT_MODE_2)
- for (i=0; i<CD_FRAMESIZE_RAW; i++) inb(DATA_PORT);
- else
- for (i=0; i<CD_FRAMESIZE; i++) inb(DATA_PORT);
- }
- azt_read_count--;
- }
- if (aztSendCmd(ACMD_GET_STATUS)) RETURN("azt_poll 5");
- azt_state = AZT_S_STOPPING;
- AztTimeout = 1000;
- break;
-
- case AZT_S_STOPPING:
-#ifdef AZT_TEST3
- if (azt_state!=azt_state_old) {
- azt_state_old=azt_state;
- printk("AZT_S_STOPPING\n");
- }
-#endif
-
- if ((st = aztStatus()) == -1 && AztTimeout)
- break;
-
- if ((st != -1) && ((st & AST_DSK_CHG)||(st & AST_NOT_READY))) {
- aztDiskChanged = 1;
- aztTocUpToDate = 0;
- azt_invalidate_buffers();
- printk("aztcd: Disk Changed or Not Ready 4 - Unmount Disk!\n");
- end_request(0);
- }
-
-
-#ifdef AZT_TEST3
- printk("CURRENT_VALID %d azt_mode %d\n",
- CURRENT_VALID, azt_mode);
-#endif
-
- if (CURRENT_VALID) {
- if (st != -1) {
- if (azt_mode == 1) {
- azt_state = AZT_S_READ;
- loop_ctl = 1;
- skip = 1;
- break;
- } else {
- azt_state = AZT_S_MODE;
- loop_ctl = 1;
- skip = 1;
- break;
- }
- } else {
- azt_state = AZT_S_START;
- AztTimeout = 1;
- }
- } else {
- azt_state = AZT_S_IDLE;
- return;
- }
- break;
-
- default:
- printk("aztcd: invalid state %d\n", azt_state);
- return;
- } /* case */
- } /* while */
-
-
- if (!AztTimeout--)
- { printk("aztcd: timeout in state %d\n", azt_state);
- azt_state = AZT_S_STOP;
- if (aztSendCmd(ACMD_STOP)) RETURN("azt_poll 6");
- STEN_LOW_WAIT;
- };
-
- SET_TIMER(azt_poll, HZ/100);
-}
-
-static void azt_invalidate_buffers(void)
-{ int i;
-
-#ifdef AZT_DEBUG
- printk("aztcd: executing azt_invalidate_buffers\n");
-#endif
- for (i = 0; i < AZT_BUF_SIZ; ++i)
- azt_buf_bn[i] = -1;
- azt_buf_out = -1;
-}
-
-/*
- * Open the device special file. Check that a disk is in.
- */
-int aztcd_open(struct inode *ip, struct file *fp)
-{ int st;
-
-#ifdef AZT_DEBUG
- printk("aztcd: starting aztcd_open\n");
-#endif
- if (aztPresent == 0)
- return -ENXIO; /* no hardware */
-
- if (!azt_open_count && azt_state == AZT_S_IDLE)
- { azt_invalidate_buffers();
-
- st = getAztStatus(); /* check drive status */
- if (st == -1) return -EIO; /* drive doesn't respond */
-
- if (st & AST_DOOR_OPEN)
- { /* close door, then get the status again. */
- printk("aztcd: Door Open?\n");
- aztCloseDoor();
- st = getAztStatus();
- }
-
- if ((st & AST_NOT_READY) || (st & AST_DSK_CHG)) /*no disk in drive or changed*/
- { printk("aztcd: Disk Changed or No Disk in Drive?\n");
- aztTocUpToDate=0;
- }
- if (aztUpdateToc()) return -EIO;
-
- }
- ++azt_open_count;
- MOD_INC_USE_COUNT;
- aztLockDoor();
-
-
-#ifdef AZT_DEBUG
- printk("aztcd: exiting aztcd_open\n");
-#endif
- return 0;
-}
-
-
-/*
- * On close, we flush all azt blocks from the buffer cache.
- */
-static void aztcd_release(struct inode * inode, struct file * file)
-{
-#ifdef AZT_DEBUG
- printk("aztcd: executing aztcd_release\n");
- printk("inode: %p, inode->i_rdev: %x file: %p\n",inode,inode->i_rdev,file);
-#endif
- MOD_DEC_USE_COUNT;
- if (!--azt_open_count) {
- azt_invalidate_buffers();
- sync_dev(inode->i_rdev); /*??? isn't it a read only dev?*/
- invalidate_buffers(inode -> i_rdev);
- aztUnlockDoor();
- if (azt_auto_eject)
- aztSendCmd(ACMD_EJECT);
- CLEAR_TIMER;
- }
- return;
-}
-
-
-static struct file_operations azt_fops = {
- NULL, /* lseek - default */
- block_read, /* read - general block-dev read */
- block_write, /* write - general block-dev write */
- NULL, /* readdir - bad */
- NULL, /* select */
- aztcd_ioctl, /* ioctl */
- NULL, /* mmap */
- aztcd_open, /* open */
- aztcd_release, /* release */
- NULL, /* fsync */
- NULL, /* fasync*/
- check_aztcd_media_change, /*media change*/
- NULL /* revalidate*/
-};
-
-/*
- * Test for presence of drive and initialize it. Called at boot time.
- */
-
-int aztcd_init(void)
-{ long int count, max_count;
- unsigned char result[50];
- int st;
-
- if (azt_port <= 0) {
- printk("aztcd: no Aztech CD-ROM Initialization");
- return -EIO;
- }
- printk("aztcd: Aztech, Orchid, Okano, Wearnes CD-ROM Driver (C) 1994,1995 W.Zimmermann\n");
- printk("aztcd: DriverVersion=%s BaseAddress=0x%x \n",AZT_VERSION,azt_port);
-
- if (check_region(azt_port, 4)) {
- printk("aztcd: conflict, I/O port (%X) already used\n",
- azt_port);
- return -EIO;
- }
-
-#ifdef AZT_SW32 /*CDROM connected to Soundwave32 card*/
- if ((0xFF00 & inw(AZT_SW32_ID_REG)) != 0x4500)
- { printk("aztcd: no Soundwave32 card detected at base:%x init:%x config:%x id:%x\n",
- AZT_SW32_BASE_ADDR,AZT_SW32_INIT,AZT_SW32_CONFIG_REG,AZT_SW32_ID_REG);
- return -EIO;
- }
- else
- { printk("aztcd: Soundwave32 card detected at %x Version %x\n",
- AZT_SW32_BASE_ADDR, inw(AZT_SW32_ID_REG));
- outw(AZT_SW32_INIT,AZT_SW32_CONFIG_REG);
- for (count=0;count<10000;count++); /*delay a bit*/
- }
-#endif
-
- /* check for presence of drive */
- outb(POLLED,MODE_PORT); /*???*/
- inb(CMD_PORT);
- inb(CMD_PORT);
- outb(ACMD_GET_VERSION,CMD_PORT); /*Try to get version info*/
-
-/* STEN_LOW - special implementation for drive recognition
-*/ aztTimeOutCount=0;
- do { aztIndatum=inb(STATUS_PORT);
- aztTimeOutCount++;
- if (aztTimeOutCount>=AZT_FAST_TIMEOUT) break;
- } while (aztIndatum&AFL_STATUS);
-
- if (inb(DATA_PORT)!=AFL_OP_OK) /*OP_OK? If not, reset and try again*/
- {
-#ifndef MODULE
- if (azt_cont!=0x79)
- { printk("aztcd: no AZTECH CD-ROM drive found-Try boot parameter aztcd=<BaseAddress>,0x79\n");
- return -EIO;
- }
-#else
- if (0)
- {
- }
-#endif
- else
- { printk("aztcd: drive reset - please wait\n");
- for (count=0;count<50;count++)
- { inb(STATUS_PORT); /*removing all data from earlier tries*/
- inb(DATA_PORT);
- }
- outb(POLLED,MODE_PORT); /*???*/
- inb(CMD_PORT);
- inb(CMD_PORT);
- getAztStatus(); /*trap errors*/
- outb(ACMD_SOFT_RESET,CMD_PORT); /*send reset*/
- STEN_LOW;
- if (inb(DATA_PORT)!=AFL_OP_OK) /*OP_OK?*/
- { printk("aztcd: no AZTECH CD-ROM drive found\n");
- return -EIO;
- }
- for (count = 0; count < AZT_TIMEOUT; count++);
- { count=count*2; /* delay a bit */
- count=count/2;
- }
- if ((st=getAztStatus())==-1)
- { printk("aztcd: Drive Status Error Status=%x\n",st);
- return -EIO;
- }
-#ifdef AZT_DEBUG
- printk("aztcd: Status = %x\n",st);
-#endif
- outb(POLLED,MODE_PORT); /*???*/
- inb(CMD_PORT);
- inb(CMD_PORT);
- outb(ACMD_GET_VERSION,CMD_PORT); /*GetVersion*/
- STEN_LOW;
- OP_OK;
- }
- }
- azt_init_end=1;
- STEN_LOW;
- result[0]=inb(DATA_PORT); /*reading in a null byte???*/
- for (count=1;count<50;count++) /*Reading version string*/
- { aztTimeOutCount=0; /*here we must implement STEN_LOW differently*/
- do { aztIndatum=inb(STATUS_PORT);/*because we want to exit by timeout*/
- aztTimeOutCount++;
- if (aztTimeOutCount>=AZT_FAST_TIMEOUT) break;
- } while (aztIndatum&AFL_STATUS);
- if (aztTimeOutCount>=AZT_FAST_TIMEOUT) break; /*all chars read?*/
- result[count]=inb(DATA_PORT);
- }
- if (count>30) max_count=30; /*print max.30 chars of the version string*/
- else max_count=count;
- printk("aztcd: FirmwareVersion=");
- for (count=1;count<max_count;count++) printk("%c",result[count]);
- printk("<<<\n");
-
- if ((result[1]=='A')&&(result[2]=='Z')&&(result[3]=='T'))
- { printk("aztcd: AZTECH drive detected\n"); /*AZTECH*/
- }
- else if ((result[2]=='C')&&(result[3]=='D')&&(result[4]=='D'))
- { printk("aztcd: ORCHID or WEARNES drive detected\n"); /*ORCHID or WEARNES*/
- }
- else /*OTHERS or none*/
- { printk("aztcd: : unknown drive or firmware version detected\n");
- printk(" azt may not run stable, if you want to try anyhow,\n");
- printk(" boot with: aztcd=<BaseAddress>,0x79\n");
- if ((azt_cont!=0x79))
- { printk("aztcd: FirmwareVersion=");
- for (count=1;count<5;count++) printk("%c",result[count]);
- printk("\n");
- printk("aztcd: Aborted\n");
- return -EIO;
- }
- }
- if (register_blkdev(MAJOR_NR, "aztcd", &azt_fops) != 0)
- {
- printk("aztcd: Unable to get major %d for Aztech CD-ROM\n",
- MAJOR_NR);
- return -EIO;
- }
- blk_dev[MAJOR_NR].request_fn = DEVICE_REQUEST;
- read_ahead[MAJOR_NR] = 4;
-
- request_region(azt_port, 4, "aztcd");
-
- azt_invalidate_buffers();
- aztPresent = 1;
- aztCloseDoor();
- printk("aztcd: End Init\n");
- return (0);
-}
-
-
-static void azt_hsg2msf(long hsg, struct msf *msf)
-{ hsg += 150;
- msf -> min = hsg / 4500;
- hsg %= 4500;
- msf -> sec = hsg / 75;
- msf -> frame = hsg % 75;
-#ifdef AZT_DEBUG
- if (msf->min >=70) printk("aztcd: Error hsg2msf address Minutes\n");
- if (msf->sec >=60) printk("aztcd: Error hsg2msf address Seconds\n");
- if (msf->frame>=75) printk("aztcd: Error hsg2msf address Frames\n");
-#endif
- azt_bin2bcd(&msf -> min); /* convert to BCD */
- azt_bin2bcd(&msf -> sec);
- azt_bin2bcd(&msf -> frame);
-}
-
-
-static void azt_bin2bcd(unsigned char *p)
-{ int u, t;
-
- u = *p % 10;
- t = *p / 10;
- *p = u | (t << 4);
-}
-
-static int azt_bcd2bin(unsigned char bcd)
-{ return (bcd >> 4) * 10 + (bcd & 0xF);
-}
-
-
-
-/*
- * Read a value from the drive. Should return quickly, so a busy wait
- * is used to avoid excessive rescheduling. The read command itself must
- * be issued with aztSendCmd() directly before
- */
-static int aztGetValue(unsigned char *result)
-{ int s;
-
- STEN_LOW;
- if (aztTimeOutCount>=AZT_TIMEOUT)
- { printk("aztcd: aztGetValue timeout\n");
- return -1;
- }
- s = inb(DATA_PORT) & 0xFF;
- *result = (unsigned char) s;
- return 0;
-}
-
-
-/*
- * Read the current Q-channel info. Also used for reading the
- * table of contents.
- */
-int aztGetQChannelInfo(struct azt_Toc *qp)
-{ unsigned char notUsed;
- int st;
-
-#ifdef AZT_DEBUG
- printk("aztcd: starting aztGetQChannelInfo Time:%li\n",jiffies);
-#endif
- if ((st=getAztStatus())==-1) RETURNM("aztGetQChannelInfo 1",-1);
- if (aztSendCmd(ACMD_GET_Q_CHANNEL)) RETURNM("aztGetQChannelInfo 2",-1);
- /*STEN_LOW_WAIT; ??? Dosemu0.60's cdrom.c does not like STEN_LOW_WAIT here*/
- if (aztGetValue(¬Used)) RETURNM("aztGetQChannelInfo 3",-1); /*??? Nullbyte einlesen*/
- if ((st&AST_MODE_BITS)==AST_INITIAL)
- { qp->ctrl_addr=0; /* when audio stop ACMD_GET_Q_CHANNEL returns */
- qp->track=0; /* only one byte with Aztech drives */
- qp->pointIndex=0;
- qp->trackTime.min=0;
- qp->trackTime.sec=0;
- qp->trackTime.frame=0;
- qp->diskTime.min=0;
- qp->diskTime.sec=0;
- qp->diskTime.frame=0;
- return 0;
- }
- else
- { if (aztGetValue(&qp -> ctrl_addr) < 0) RETURNM("aztGetQChannelInfo 4",-1);
- if (aztGetValue(&qp -> track) < 0) RETURNM("aztGetQChannelInfo 4",-1);
- if (aztGetValue(&qp -> pointIndex) < 0) RETURNM("aztGetQChannelInfo 4",-1);
- if (aztGetValue(&qp -> trackTime.min) < 0) RETURNM("aztGetQChannelInfo 4",-1);
- if (aztGetValue(&qp -> trackTime.sec) < 0) RETURNM("aztGetQChannelInfo 4",-1);
- if (aztGetValue(&qp -> trackTime.frame) < 0) RETURNM("aztGetQChannelInfo 4",-1);
- if (aztGetValue(¬Used) < 0) RETURNM("aztGetQChannelInfo 4",-1);
- if (aztGetValue(&qp -> diskTime.min) < 0) RETURNM("aztGetQChannelInfo 4",-1);
- if (aztGetValue(&qp -> diskTime.sec) < 0) RETURNM("aztGetQChannelInfo 4",-1);
- if (aztGetValue(&qp -> diskTime.frame) < 0) RETURNM("aztGetQChannelInfo 4",-1);
- }
-#ifdef AZT_DEBUG
- printk("aztcd: exiting aztGetQChannelInfo Time:%li\n",jiffies);
-#endif
- return 0;
-}
-
-/*
- * Read the table of contents (TOC) and TOC header if necessary
- */
-static int aztUpdateToc()
-{ int st;
-
-#ifdef AZT_DEBUG
- printk("aztcd: starting aztUpdateToc Time:%li\n",jiffies);
-#endif
- if (aztTocUpToDate)
- return 0;
-
- if (aztGetDiskInfo() < 0)
- return -EIO;
-
- if (aztGetToc(0) < 0)
- return -EIO;
-
- /*audio disk detection
- with my Aztech drive there is no audio status bit, so I use the copy
- protection bit of the first track. If this track is copy protected
- (copy bit = 0), I assume, it's an audio disk. Strange, but works ??? */
- if (!(Toc[DiskInfo.first].ctrl_addr & 0x40))
- DiskInfo.audio=1;
- else
- DiskInfo.audio=0;
-
- /* XA detection */
- if (! DiskInfo.audio)
- { azt_Play.start.min = 0; /*XA detection only seems to work*/
- azt_Play.start.sec = 2; /*when we play a track*/
- azt_Play.start.frame = 0;
- azt_Play.end.min = 0;
- azt_Play.end.sec = 0;
- azt_Play.end.frame = 1;
- if (sendAztCmd(ACMD_PLAY_READ, &azt_Play)) return -1;
- DTEN_LOW;
- for (st=0;st<CD_FRAMESIZE;st++) inb(DATA_PORT);
- }
- DiskInfo.xa = getAztStatus() & AST_MODE;
- if (DiskInfo.xa)
- { printk("aztcd: XA support experimental - mail results to zimmerma@rz.fht-esslingen.de\n");
- }
-
- /*multisession detection
- support for multisession CDs is done automatically with Aztech drives,
- we don't have to take care about TOC redirection; if we want the isofs
- to take care about redirection, we have to set AZT_MULTISESSION to 1*/
- DiskInfo.multi=0;
-#if AZT_MULTISESSION
- if (DiskInfo.xa)
- { aztGetMultiDiskInfo(); /*here Disk.Info.multi is set*/
- }
-#endif
- if (DiskInfo.multi)
- { DiskInfo.lastSession.min = Toc[DiskInfo.next].diskTime.min;
- DiskInfo.lastSession.sec = Toc[DiskInfo.next].diskTime.sec;
- DiskInfo.lastSession.frame= Toc[DiskInfo.next].diskTime.frame;
- printk("aztcd: Multisession support experimental\n");
- }
- else
- { DiskInfo.lastSession.min = Toc[DiskInfo.first].diskTime.min;
- DiskInfo.lastSession.sec = Toc[DiskInfo.first].diskTime.sec;
- DiskInfo.lastSession.frame= Toc[DiskInfo.first].diskTime.frame;
- }
-
- aztTocUpToDate = 1;
-#ifdef AZT_DEBUG
- printk("aztcd: exiting aztUpdateToc Time:%li\n",jiffies);
-#endif
- return 0;
-}
-
-
-/* Read the table of contents header, i.e. no. of tracks and start of first
- * track
- */
-static int aztGetDiskInfo()
-{ int limit;
- unsigned char test;
- struct azt_Toc qInfo;
-
-#ifdef AZT_DEBUG
- printk("aztcd: starting aztGetDiskInfo Time:%li\n",jiffies);
-#endif
- if (aztSendCmd(ACMD_SEEK_TO_LEADIN)) RETURNM("aztGetDiskInfo 1",-1);
- STEN_LOW_WAIT;
- test=0;
- for (limit=300;limit>0;limit--)
- { if (aztGetQChannelInfo(&qInfo)<0) RETURNM("aztGetDiskInfo 2",-1);
- if (qInfo.pointIndex==0xA0) /*Number of FirstTrack*/
- { DiskInfo.first = qInfo.diskTime.min;
- DiskInfo.first = azt_bcd2bin(DiskInfo.first);
- test=test|0x01;
- }
- if (qInfo.pointIndex==0xA1) /*Number of LastTrack*/
- { DiskInfo.last = qInfo.diskTime.min;
- DiskInfo.last = azt_bcd2bin(DiskInfo.last);
- test=test|0x02;
- }
- if (qInfo.pointIndex==0xA2) /*DiskLength*/
- { DiskInfo.diskLength.min=qInfo.diskTime.min;
- DiskInfo.diskLength.sec=qInfo.diskTime.sec;
- DiskInfo.diskLength.frame=qInfo.diskTime.frame;
- test=test|0x04;
- }
- if ((qInfo.pointIndex==DiskInfo.first)&&(test&0x01)) /*StartTime of First Track*/
- { DiskInfo.firstTrack.min=qInfo.diskTime.min;
- DiskInfo.firstTrack.sec=qInfo.diskTime.sec;
- DiskInfo.firstTrack.frame=qInfo.diskTime.frame;
- test=test|0x08;
- }
- if (test==0x0F) break;
- }
-#ifdef AZT_DEBUG
- printk ("aztcd: exiting aztGetDiskInfo Time:%li\n",jiffies);
- printk("Disk Info: first %d last %d length %02X:%02X.%02X dez first %02X:%02X.%02X dez\n",
- DiskInfo.first,
- DiskInfo.last,
- DiskInfo.diskLength.min,
- DiskInfo.diskLength.sec,
- DiskInfo.diskLength.frame,
- DiskInfo.firstTrack.min,
- DiskInfo.firstTrack.sec,
- DiskInfo.firstTrack.frame);
-#endif
- if (test!=0x0F) return -1;
- return 0;
-}
-
-#if AZT_MULTISESSION
-/*
- * Get Multisession Disk Info
- */
-static int aztGetMultiDiskInfo(void)
-{ int limit, k=5;
- unsigned char test;
- struct azt_Toc qInfo;
-
-#ifdef AZT_DEBUG
- printk("aztcd: starting aztGetMultiDiskInfo\n");
-#endif
-
- do { azt_Play.start.min = Toc[DiskInfo.last+1].diskTime.min;
- azt_Play.start.sec = Toc[DiskInfo.last+1].diskTime.sec;
- azt_Play.start.frame = Toc[DiskInfo.last+1].diskTime.frame;
- test=0;
-
- for (limit=30;limit>0;limit--) /*Seek for LeadIn of next session*/
- { if (aztSeek(&azt_Play)) RETURNM("aztGetMultiDiskInfo 1",-1);
- if (aztGetQChannelInfo(&qInfo)<0) RETURNM("aztGetMultiDiskInfo 2",-1);
- if ((qInfo.track==0)&&(qInfo.pointIndex)) break; /*LeadIn found*/
- if ((azt_Play.start.sec+=10) > 59)
- { azt_Play.start.sec=0;
- azt_Play.start.min++;
- }
- }
- if (!limit) break; /*Check, if a leadin track was found, if not we're
- at the end of the disk*/
-#ifdef AZT_DEBUG_MULTISESSION
- printk("leadin found track %d pointIndex %x limit %d\n",qInfo.track,qInfo.pointIndex,limit);
-#endif
- for (limit=300;limit>0;limit--)
- { if (++azt_Play.start.frame>74)
- { azt_Play.start.frame=0;
- if (azt_Play.start.sec > 59)
- { azt_Play.start.sec=0;
- azt_Play.start.min++;
- }
- }
- if (aztSeek(&azt_Play)) RETURNM("aztGetMultiDiskInfo 3",-1);
- if (aztGetQChannelInfo(&qInfo)<0) RETURNM("aztGetMultiDiskInfo 4",-1);
- if (qInfo.pointIndex==0xA0) /*Number of NextTrack*/
- { DiskInfo.next = qInfo.diskTime.min;
- DiskInfo.next = azt_bcd2bin(DiskInfo.next);
- test=test|0x01;
- }
- if (qInfo.pointIndex==0xA1) /*Number of LastTrack*/
- { DiskInfo.last = qInfo.diskTime.min;
- DiskInfo.last = azt_bcd2bin(DiskInfo.last);
- test=test|0x02;
- }
- if (qInfo.pointIndex==0xA2) /*DiskLength*/
- { DiskInfo.diskLength.min =qInfo.diskTime.min;
- DiskInfo.diskLength.sec =qInfo.diskTime.sec;
- DiskInfo.diskLength.frame=qInfo.diskTime.frame;
- test=test|0x04;
- }
- if ((qInfo.pointIndex==DiskInfo.next)&&(test&0x01)) /*StartTime of Next Track*/
- { DiskInfo.nextSession.min=qInfo.diskTime.min;
- DiskInfo.nextSession.sec=qInfo.diskTime.sec;
- DiskInfo.nextSession.frame=qInfo.diskTime.frame;
- test=test|0x08;
- }
- if (test==0x0F) break;
- }
-#ifdef AZT_DEBUG_MULTISESSION
- printk ("MultiDisk Info: first %d next %d last %d length %02x:%02x.%02x dez first %02x:%02x.%02x dez next %02x:%02x.%02x dez\n",
- DiskInfo.first,
- DiskInfo.next,
- DiskInfo.last,
- DiskInfo.diskLength.min,
- DiskInfo.diskLength.sec,
- DiskInfo.diskLength.frame,
- DiskInfo.firstTrack.min,
- DiskInfo.firstTrack.sec,
- DiskInfo.firstTrack.frame,
- DiskInfo.nextSession.min,
- DiskInfo.nextSession.sec,
- DiskInfo.nextSession.frame);
-#endif
- if (test!=0x0F)
- break;
- else
- DiskInfo.multi=1; /*found TOC of more than one session*/
- aztGetToc(1);
- } while(--k);
-
-#ifdef AZT_DEBUG
- printk ("aztcd: exiting aztGetMultiDiskInfo Time:%li\n",jiffies);
-#endif
- return 0;
-}
-#endif
-
-/*
- * Read the table of contents (TOC)
- */
-static int aztGetToc(int multi)
-{ int i, px;
- int limit;
- struct azt_Toc qInfo;
-
-#ifdef AZT_DEBUG
- printk("aztcd: starting aztGetToc Time:%li\n",jiffies);
-#endif
- if (!multi)
- { for (i = 0; i < MAX_TRACKS; i++)
- Toc[i].pointIndex = 0;
- i = DiskInfo.last + 3;
- }
- else
- { for (i = DiskInfo.next; i < MAX_TRACKS; i++)
- Toc[i].pointIndex = 0;
- i = DiskInfo.last + 4 - DiskInfo.next;
- }
-
-/*Is there a good reason to stop motor before TOC read?
- if (aztSendCmd(ACMD_STOP)) RETURNM("aztGetToc 1",-1);
- STEN_LOW_WAIT;
-*/
-
- if (!multi)
- { azt_mode = 0x05;
- if (aztSendCmd(ACMD_SEEK_TO_LEADIN)) RETURNM("aztGetToc 2",-1); /*???*/
- STEN_LOW_WAIT;
- }
- for (limit = 300; limit > 0; limit--)
- { if (multi)
- { if (++azt_Play.start.sec > 59)
- { azt_Play.start.sec=0;
- azt_Play.start.min++;
- }
- if (aztSeek(&azt_Play)) RETURNM("aztGetToc 3",-1);
- }
- if (aztGetQChannelInfo(&qInfo) < 0)
- break;
-
- px = azt_bcd2bin(qInfo.pointIndex);
-
- if (px > 0 && px < MAX_TRACKS && qInfo.track == 0)
- if (Toc[px].pointIndex == 0)
- { Toc[px] = qInfo;
- i--;
- }
-
- if (i <= 0)
- break;
- }
-
- Toc[DiskInfo.last + 1].diskTime = DiskInfo.diskLength;
-
-
-#ifdef AZT_DEBUG_MULTISESSION
- printk("aztcd: exiting aztGetToc\n");
- for (i = 1; i <= DiskInfo.last+1; i++)
- printk("i = %2d ctl-adr = %02X track %2d px %02X %02X:%02X.%02X dez %02X:%02X.%02X dez\n",
- i, Toc[i].ctrl_addr, Toc[i].track, Toc[i].pointIndex,
- Toc[i].trackTime.min, Toc[i].trackTime.sec, Toc[i].trackTime.frame,
- Toc[i].diskTime.min, Toc[i].diskTime.sec, Toc[i].diskTime.frame);
- for (i = 100; i < 103; i++)
- printk("i = %2d ctl-adr = %02X track %2d px %02X %02X:%02X.%02X dez %02X:%02X.%02X dez\n",
- i, Toc[i].ctrl_addr, Toc[i].track, Toc[i].pointIndex,
- Toc[i].trackTime.min, Toc[i].trackTime.sec, Toc[i].trackTime.frame,
- Toc[i].diskTime.min, Toc[i].diskTime.sec, Toc[i].diskTime.frame);
-#endif
-
- return limit > 0 ? 0 : -1;
-}
-
-#ifdef MODULE
-void cleanup_module(void)
-{ if (MOD_IN_USE)
- { printk("aztcd module in use - can't remove it.\n");
- return;
- }
- if ((unregister_blkdev(MAJOR_NR, "aztcd") == -EINVAL))
- { printk("What's that: can't unregister aztcd\n");
- return;
- }
- release_region(azt_port,4);
- printk("aztcd module released.\n");
-}
-#endif MODULE
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen, slshen@lbl.gov
with Sam's (original) version of this