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-rw-r--r--drivers/cdrom/aztcd.c2494
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diff --git a/drivers/cdrom/aztcd.c b/drivers/cdrom/aztcd.c
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index 000000000000..43bf1e5dc38a
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+++ b/drivers/cdrom/aztcd.c
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+#define AZT_VERSION "2.60"
+
+/* $Id: aztcd.c,v 2.60 1997/11/29 09:51:19 root Exp root $
+ linux/drivers/block/aztcd.c - Aztech CD268 CDROM driver
+
+ Copyright (C) 1994-98 Werner Zimmermann(Werner.Zimmermann@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 Aztech 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 Documentation/cdrom/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
+ V1.90 Support for Conrad TXC drives, thank's to Jochen Kunz and Olaf Kaluza.
+ Werner Zimmermann, October 21, 1995
+ V2.00 Changed #include "blk.h" to <linux/blk.h> as the directory
+ structure was changed. README.aztcd is now /usr/src/docu-
+ mentation/cdrom/aztcd
+ Werner Zimmermann, November 10, 95
+ V2.10 Started to modify azt_poll to prevent reading beyond end of
+ tracks.
+ Werner Zimmermann, December 3, 95
+ V2.20 Changed some comments
+ Werner Zimmermann, April 1, 96
+ V2.30 Implemented support for CyCDROM CR520, CR940, Code for CR520
+ delivered by H.Berger with preworks by E.Moenkeberg.
+ Werner Zimmermann, April 29, 96
+ V2.40 Reorganized the placement of functions in the source code file
+ to reflect the layered approach; did not actually change code
+ Werner Zimmermann, May 1, 96
+ V2.50 Heiko Eissfeldt suggested to remove some VERIFY_READs in
+ aztcd_ioctl; check_aztcd_media_change modified
+ Werner Zimmermann, May 16, 96
+ V2.60 Implemented Auto-Probing; made changes for kernel's 2.1.xx blocksize
+ Adaption to linux kernel > 2.1.0
+ Werner Zimmermann, Nov 29, 97
+
+ 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>
+*/
+
+#include <linux/blkdev.h>
+#include "aztcd.h"
+
+#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>
+
+/*###########################################################################
+ Defines
+ ###########################################################################
+*/
+
+#define MAJOR_NR AZTECH_CDROM_MAJOR
+#define QUEUE (azt_queue)
+#define CURRENT elv_next_request(azt_queue)
+#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;}
+
+/* Macros to switch the IDE-interface to the slave device and back to the master*/
+#define SWITCH_IDE_SLAVE outb_p(0xa0,azt_port+6); \
+ outb_p(0x10,azt_port+6); \
+ outb_p(0x00,azt_port+7); \
+ outb_p(0x10,azt_port+6);
+#define SWITCH_IDE_MASTER outb_p(0xa0,azt_port+6);
+
+
+#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
+
+static struct request_queue *azt_queue;
+
+static int current_valid(void)
+{
+ return CURRENT &&
+ CURRENT->cmd == READ &&
+ CURRENT->sector != -1;
+}
+
+#define AFL_STATUSorDATA (AFL_STATUS | AFL_DATA)
+#define AZT_BUF_SIZ 16
+
+#define READ_TIMEOUT 3000
+
+#define azt_port aztcd /*needed for the modutils */
+
+/*##########################################################################
+ Type Definitions
+ ##########################################################################
+*/
+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 */
+};
+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 */
+};
+
+/*##########################################################################
+ Global Variables
+ ##########################################################################
+*/
+static int aztPresent = 0;
+
+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;
+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
+static volatile enum azt_read_modes azt_read_mode = AZT_MODE_1;
+
+static int azt_mode = -1;
+static volatile int azt_read_count = 1;
+
+static int azt_port = AZT_BASE_ADDR;
+
+module_param(azt_port, int, 0);
+
+static int azt_port_auto[16] = AZT_BASE_AUTO;
+
+static char azt_cont = 0;
+static char azt_init_end = 0;
+static char azt_auto_eject = AZT_AUTO_EJECT;
+
+static int AztTimeout, AztTries;
+static DECLARE_WAIT_QUEUE_HEAD(azt_waitq);
+static struct timer_list delay_timer = TIMER_INITIALIZER(NULL, 0, 0);
+
+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 unsigned char aztIndatum;
+static unsigned long aztTimeOutCount;
+static int aztCmd = 0;
+
+static DEFINE_SPINLOCK(aztSpin);
+
+/*###########################################################################
+ Function Prototypes
+ ###########################################################################
+*/
+/* CDROM Drive Low Level I/O Functions */
+static void aztStatTimer(void);
+
+/* CDROM Drive Command Functions */
+static int aztGetDiskInfo(void);
+#if AZT_MULTISESSION
+static int aztGetMultiDiskInfo(void);
+#endif
+static int aztGetToc(int multi);
+
+/* Kernel Interface Functions */
+static int check_aztcd_media_change(struct gendisk *disk);
+static int aztcd_ioctl(struct inode *ip, struct file *fp, unsigned int cmd,
+ unsigned long arg);
+static int aztcd_open(struct inode *ip, struct file *fp);
+static int aztcd_release(struct inode *inode, struct file *file);
+
+static struct block_device_operations azt_fops = {
+ .owner = THIS_MODULE,
+ .open = aztcd_open,
+ .release = aztcd_release,
+ .ioctl = aztcd_ioctl,
+ .media_changed = check_aztcd_media_change,
+};
+
+/* Aztcd State Machine: Controls Drive Operating State */
+static void azt_poll(void);
+
+/* Miscellaneous support functions */
+static void azt_hsg2msf(long hsg, struct msf *msf);
+static long azt_msf2hsg(struct msf *mp);
+static void azt_bin2bcd(unsigned char *p);
+static int azt_bcd2bin(unsigned char bcd);
+
+/*##########################################################################
+ CDROM Drive Low Level I/O Functions
+ ##########################################################################
+*/
+/* 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()
+static 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*/
+#if 0
+# define PA_OK pa_ok()
+static 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);
+}
+#endif
+
+/* Wait for STEN=Low = handshake signal 'AFL_.._OK available or command executed*/
+# define STEN_LOW sten_low()
+static 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()
+static 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()
+static 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);
+}
+
+/*##########################################################################
+ CDROM Drive Command Functions
+ ##########################################################################
+*/
+/*
+ * 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
+
+ if ((azt_port == 0x1f0) || (azt_port == 0x170))
+ SWITCH_IDE_SLAVE; /*switch IDE interface to slave configuration */
+
+ 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);
+}
+
+
+/* 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;
+}
+
+/*
+ * 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;
+}
+
+/*
+ * 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.
+ */
+static 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(&notUsed))
+ 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(&notUsed) < 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(void)
+{
+ 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 Werner.Zimmermann@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(void)
+{
+ 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;
+ Toc[DiskInfo.last].trackTime = 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;
+}
+
+
+/*##########################################################################
+ Kernel Interface Functions
+ ##########################################################################
+*/
+
+#ifndef MODULE
+static int __init aztcd_setup(char *str)
+{
+ int ints[4];
+
+ (void) get_options(str, ARRAY_SIZE(ints), ints);
+
+ if (ints[0] > 0)
+ azt_port = ints[1];
+ if (ints[1] > 1)
+ azt_cont = ints[2];
+ return 1;
+}
+
+__setup("aztcd=", aztcd_setup);
+
+#endif /* !MODULE */
+
+/*
+ * Checking if the media has been changed
+*/
+static int check_aztcd_media_change(struct gendisk *disk)
+{
+ if (aztDiskChanged) { /* disk changed */
+ aztDiskChanged = 0;
+ return 1;
+ } else
+ return 0; /* no change */
+}
+
+/*
+ * Kernel IO-controls
+*/
+static int aztcd_ioctl(struct inode *ip, struct file *fp, unsigned int cmd,
+ unsigned long arg)
+{
+ int i;
+ 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;
+ void __user *argp = (void __user *)arg;
+
+#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
+ if (copy_from_user(&ms, argp,
+ sizeof(struct cdrom_multisession)))
+ return -EFAULT;
+ 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;
+ if (copy_to_user(argp, &ms,
+ sizeof(struct cdrom_multisession)))
+ return -EFAULT;
+#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
+ ("aztcd 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. */
+ if (copy_from_user(&ti, argp, sizeof ti))
+ return -EFAULT;
+ 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;
+ }
+*/
+ if (copy_from_user(&msf, argp, sizeof msf))
+ return -EFAULT;
+ /* 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 */
+ tocHdr.cdth_trk0 = DiskInfo.first;
+ tocHdr.cdth_trk1 = DiskInfo.last;
+ if (copy_to_user(argp, &tocHdr, sizeof tocHdr))
+ return -EFAULT;
+ break;
+ case CDROMREADTOCENTRY: /* Read an entry in the table of contents */
+ if (copy_from_user(&entry, argp, sizeof entry))
+ return -EFAULT;
+ 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;
+ }
+ if (copy_to_user(argp, &entry, sizeof entry))
+ return -EFAULT;
+ break;
+ case CDROMSUBCHNL: /* Get subchannel info */
+ if (copy_from_user
+ (&subchnl, argp, sizeof(struct cdrom_subchnl)))
+ return -EFAULT;
+ if (aztGetQChannelInfo(&qInfo) < 0) {
+#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);
+ }
+ if (copy_to_user(argp, &subchnl, sizeof(struct cdrom_subchnl)))
+ return -EFAULT;
+ 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 */
+ if (copy_from_user(&volctrl, argp, sizeof(volctrl)))
+ return -EFAULT;
+ 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) */
+ {
+ if (copy_from_user(&msf, argp, sizeof msf))
+ return -EFAULT;
+ /* 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);
+ if (copy_to_user(argp, &buf, CD_FRAMESIZE_RAW))
+ return -EFAULT;
+ }
+ } else
+ /*CDROMREADCOOKED*/ {
+ if (sendAztCmd(ACMD_PLAY_READ, &azt_Play))
+ return -1;
+ DTEN_LOW;
+ insb(DATA_PORT, buf, CD_FRAMESIZE);
+ if (copy_to_user(argp, &buf, CD_FRAMESIZE))
+ return -EFAULT;
+ }
+ }
+ break;
+ case CDROMSEEK: /*seek msf address */
+ if (copy_from_user(&msf, argp, sizeof msf))
+ return -EFAULT;
+ /* 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())
+ return;
+
+ 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(request_queue_t * q)
+{
+#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(CURRENT, 0);
+ return;
+ }
+ azt_transfer_is_active = 1;
+ while (current_valid()) {
+ azt_transfer();
+ if (CURRENT->nr_sectors == 0) {
+ end_request(CURRENT, 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(CURRENT, 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_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.
+ */
+static 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)
+ goto err_out; /* 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())
+ goto err_out;
+
+ }
+ ++azt_open_count;
+ aztLockDoor();
+
+#ifdef AZT_DEBUG
+ printk("aztcd: exiting aztcd_open\n");
+#endif
+ return 0;
+
+ err_out:
+ return -EIO;
+}
+
+
+/*
+ * On close, we flush all azt blocks from the buffer cache.
+ */
+static int aztcd_release(struct inode *inode, struct file *file)
+{
+#ifdef AZT_DEBUG
+ printk("aztcd: executing aztcd_release\n");
+ printk("inode: %p, device: %s file: %p\n", inode,
+ inode->i_bdev->bd_disk->disk_name, file);
+#endif
+ if (!--azt_open_count) {
+ azt_invalidate_buffers();
+ aztUnlockDoor();
+ if (azt_auto_eject)
+ aztSendCmd(ACMD_EJECT);
+ CLEAR_TIMER;
+ }
+ return 0;
+}
+
+static struct gendisk *azt_disk;
+
+/*
+ * Test for presence of drive and initialize it. Called at boot time.
+ */
+
+static int __init aztcd_init(void)
+{
+ long int count, max_count;
+ unsigned char result[50];
+ int st;
+ void* status = NULL;
+ int i = 0;
+ int ret = 0;
+
+ if (azt_port == 0) {
+ printk(KERN_INFO "aztcd: no Aztech CD-ROM Initialization");
+ return -EIO;
+ }
+
+ printk(KERN_INFO "aztcd: AZTECH, ORCHID, OKANO, WEARNES, TXC, CyDROM "
+ "CD-ROM Driver\n");
+ printk(KERN_INFO "aztcd: (C) 1994-98 W.Zimmermann\n");
+ if (azt_port == -1) {
+ printk
+ ("aztcd: DriverVersion=%s For IDE/ATAPI-drives use ide-cd.c\n",
+ AZT_VERSION);
+ } else
+ printk
+ ("aztcd: DriverVersion=%s BaseAddress=0x%x For IDE/ATAPI-drives use ide-cd.c\n",
+ AZT_VERSION, azt_port);
+ printk(KERN_INFO "aztcd: If you have problems, read /usr/src/linux/"
+ "Documentation/cdrom/aztcd\n");
+
+
+#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(KERN_INFO
+ "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 */
+
+ if (azt_port == -1) { /* autoprobing for proprietary interface */
+ for (i = 0; (azt_port_auto[i] != 0) && (i < 16); i++) {
+ azt_port = azt_port_auto[i];
+ printk(KERN_INFO "aztcd: Autoprobing BaseAddress=0x%x"
+ "\n", azt_port);
+ /*proprietary interfaces need 4 bytes */
+ if (!request_region(azt_port, 4, "aztcd")) {
+ continue;
+ }
+ outb(POLLED, MODE_PORT);
+ inb(CMD_PORT);
+ inb(CMD_PORT);
+ outb(ACMD_GET_VERSION, CMD_PORT); /*Try to get version info */
+
+ 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) { /* OK drive found */
+ break;
+ }
+ else { /* Drive not found on this port - try next one */
+ release_region(azt_port, 4);
+ }
+ }
+ if ((azt_port_auto[i] == 0) || (i == 16)) {
+ printk(KERN_INFO "aztcd: no AZTECH CD-ROM drive found\n");
+ return -EIO;
+ }
+ } else { /* no autoprobing */
+ if ((azt_port == 0x1f0) || (azt_port == 0x170))
+ status = request_region(azt_port, 8, "aztcd"); /*IDE-interfaces need 8 bytes */
+ else
+ status = request_region(azt_port, 4, "aztcd"); /*proprietary interfaces need 4 bytes */
+ if (!status) {
+ printk(KERN_WARNING "aztcd: conflict, I/O port (%X) "
+ "already used\n", azt_port);
+ return -EIO;
+ }
+
+ if ((azt_port == 0x1f0) || (azt_port == 0x170))
+ SWITCH_IDE_SLAVE; /*switch IDE interface to slave configuration */
+
+ outb(POLLED, MODE_PORT);
+ inb(CMD_PORT);
+ inb(CMD_PORT);
+ outb(ACMD_GET_VERSION, CMD_PORT); /*Try to get version info */
+
+ 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(KERN_WARNING "aztcd: no AZTECH CD-ROM "
+ "drive found-Try boot parameter aztcd="
+ "<BaseAddress>,0x79\n");
+ ret = -EIO;
+ goto err_out;
+ }
+#else
+ if (0) {
+ }
+#endif
+ else {
+ printk(KERN_INFO "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(KERN_WARNING "aztcd: no AZTECH "
+ "CD-ROM drive found\n");
+ ret = -EIO;
+ goto err_out;
+ }
+
+ for (count = 0; count < AZT_TIMEOUT;
+ count++)
+ barrier(); /* Stop gcc 2.96 being smart */
+ /* use udelay(), damnit -- AV */
+
+ if ((st = getAztStatus()) == -1) {
+ printk(KERN_WARNING "aztcd: Drive Status"
+ " Error Status=%x\n", st);
+ ret = -EIO;
+ goto err_out;
+ }
+#ifdef AZT_DEBUG
+ printk(KERN_DEBUG "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(KERN_INFO "aztcd: FirmwareVersion=");
+ for (count = 1; count < max_count; count++)
+ printk("%c", result[count]);
+ printk("<<>> ");
+
+ if ((result[1] == 'A') && (result[2] == 'Z') && (result[3] == 'T')) {
+ printk("AZTECH drive detected\n");
+ /*AZTECH*/}
+ else if ((result[2] == 'C') && (result[3] == 'D')
+ && (result[4] == 'D')) {
+ printk("ORCHID or WEARNES drive detected\n"); /*ORCHID or WEARNES */
+ } else if ((result[1] == 0x03) && (result[2] == '5')) {
+ printk("TXC or CyCDROM drive detected\n"); /*Conrad TXC, CyCDROM */
+ } else { /*OTHERS or none */
+ printk("\nunknown drive or firmware version detected\n");
+ printk
+ ("aztcd 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("<<>> ");
+ printk("Aborted\n");
+ ret = -EIO;
+ goto err_out;
+ }
+ }
+ azt_disk = alloc_disk(1);
+ if (!azt_disk)
+ goto err_out;
+
+ if (register_blkdev(MAJOR_NR, "aztcd")) {
+ ret = -EIO;
+ goto err_out2;
+ }
+
+ azt_queue = blk_init_queue(do_aztcd_request, &aztSpin);
+ if (!azt_queue) {
+ ret = -ENOMEM;
+ goto err_out3;
+ }
+
+ blk_queue_hardsect_size(azt_queue, 2048);
+ azt_disk->major = MAJOR_NR;
+ azt_disk->first_minor = 0;
+ azt_disk->fops = &azt_fops;
+ sprintf(azt_disk->disk_name, "aztcd");
+ sprintf(azt_disk->devfs_name, "aztcd");
+ azt_disk->queue = azt_queue;
+ add_disk(azt_disk);
+ azt_invalidate_buffers();
+ aztPresent = 1;
+ aztCloseDoor();
+ return 0;
+err_out3:
+ unregister_blkdev(MAJOR_NR, "aztcd");
+err_out2:
+ put_disk(azt_disk);
+err_out:
+ if ((azt_port == 0x1f0) || (azt_port == 0x170)) {
+ SWITCH_IDE_MASTER;
+ release_region(azt_port, 8); /*IDE-interface */
+ } else
+ release_region(azt_port, 4); /*proprietary interface */
+ return ret;
+
+}
+
+static void __exit aztcd_exit(void)
+{
+ del_gendisk(azt_disk);
+ put_disk(azt_disk);
+ if ((unregister_blkdev(MAJOR_NR, "aztcd") == -EINVAL)) {
+ printk("What's that: can't unregister aztcd\n");
+ return;
+ }
+ blk_cleanup_queue(azt_queue);
+ if ((azt_port == 0x1f0) || (azt_port == 0x170)) {
+ SWITCH_IDE_MASTER;
+ release_region(azt_port, 8); /*IDE-interface */
+ } else
+ release_region(azt_port, 4); /*proprietary interface */
+ printk(KERN_INFO "aztcd module released.\n");
+}
+
+module_init(aztcd_init);
+module_exit(aztcd_exit);
+
+/*##########################################################################
+ Aztcd State Machine: Controls Drive Operating State
+ ##########################################################################
+*/
+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(CURRENT, 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(CURRENT, 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(CURRENT, 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(CURRENT, 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(CURRENT, 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(CURRENT, 0);
+ return;
+ }
+
+ if (current_valid()) {
+ struct azt_Play_msf msf;
+ int i;
+ azt_next_bn = CURRENT->sector / 4;
+ azt_hsg2msf(azt_next_bn, &msf.start);
+ i = 0;
+ /* find out in which track we are */
+ while (azt_msf2hsg(&msf.start) >
+ azt_msf2hsg(&Toc[++i].trackTime)) {
+ };
+ if (azt_msf2hsg(&msf.start) <
+ azt_msf2hsg(&Toc[i].trackTime) -
+ AZT_BUF_SIZ) {
+ azt_read_count = AZT_BUF_SIZ; /*fast, because we read ahead */
+ /*azt_read_count=CURRENT->nr_sectors; slow, no read ahead */
+ } else /* don't read beyond end of track */
+#if AZT_MULTISESSION
+ {
+ azt_read_count =
+ (azt_msf2hsg(&Toc[i].trackTime)
+ / 4) * 4 -
+ azt_msf2hsg(&msf.start);
+ if (azt_read_count < 0)
+ azt_read_count = 0;
+ if (azt_read_count > AZT_BUF_SIZ)
+ azt_read_count =
+ AZT_BUF_SIZ;
+ printk
+ ("aztcd: warning - trying to read beyond end of track\n");
+/* printk("%i %i %li %li\n",i,azt_read_count,azt_msf2hsg(&msf.start),azt_msf2hsg(&Toc[i].trackTime));
+*/ }
+#else
+ {
+ azt_read_count = AZT_BUF_SIZ;
+ }
+#endif
+ 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(CURRENT, 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(CURRENT, 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(CURRENT, 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(CURRENT, 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);
+}
+
+
+/*###########################################################################
+ * Miscellaneous support functions
+ ###########################################################################
+*/
+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 long azt_msf2hsg(struct msf *mp)
+{
+ return azt_bcd2bin(mp->frame) + azt_bcd2bin(mp->sec) * 75
+ + azt_bcd2bin(mp->min) * 4500 - CD_MSF_OFFSET;
+}
+
+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);
+}
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_BLOCKDEV_MAJOR(AZTECH_CDROM_MAJOR);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.