diff options
Diffstat (limited to 'drivers/cdrom/aztcd.c')
| -rw-r--r-- | drivers/cdrom/aztcd.c | 2492 |
1 files changed, 0 insertions, 2492 deletions
diff --git a/drivers/cdrom/aztcd.c b/drivers/cdrom/aztcd.c deleted file mode 100644 index 1f9fb7a9670..00000000000 --- a/drivers/cdrom/aztcd.c +++ /dev/null @@ -1,2492 +0,0 @@ -#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/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 DEFINE_TIMER(delay_timer, 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(¬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(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 ((i == 16) || (azt_port_auto[i] == 0)) { - 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"); - 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); |