diff options
Diffstat (limited to 'drivers/cdrom/aztcd.c')
-rw-r--r-- | drivers/cdrom/aztcd.c | 2494 |
1 files changed, 2494 insertions, 0 deletions
diff --git a/drivers/cdrom/aztcd.c b/drivers/cdrom/aztcd.c new file mode 100644 index 00000000000..43bf1e5dc38 --- /dev/null +++ b/drivers/cdrom/aztcd.c @@ -0,0 +1,2494 @@ +#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(¬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 ((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); |