patch-1.3.98 linux/drivers/cdrom/aztcd.c
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- Lines: 2775
- Date:
Sat May 4 19:39:23 1996
- Orig file:
v1.3.97/linux/drivers/cdrom/aztcd.c
- Orig date:
Mon Apr 29 18:05:17 1996
diff -u --recursive --new-file v1.3.97/linux/drivers/cdrom/aztcd.c linux/drivers/cdrom/aztcd.c
@@ -1,5 +1,5 @@
-#define AZT_VERSION "2.30"
-/* $Id: aztcd.c,v 2.30 1996/04/26 05:32:15 root Exp root $
+#define AZT_VERSION "2.40"
+/* $Id: aztcd.c,v 2.40 1996/05/01 11:09:35 root Exp root $
linux/drivers/block/aztcd.c - Aztech CD268 CDROM driver
Copyright (C) 1994,95,96 Werner Zimmermann(zimmerma@rz.fht-esslingen.de)
@@ -148,7 +148,9 @@
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, Mai 1, 96
*/
#include <linux/module.h>
#include <linux/errno.h>
@@ -171,6 +173,10 @@
#include <linux/blk.h>
#include <linux/aztcd.h>
+/*###########################################################################
+ Defines
+ ###########################################################################
+*/
#define SET_TIMER(func, jifs) delay_timer.expires = jiffies + (jifs); \
delay_timer.function = (void *) (func); \
add_timer(&delay_timer);
@@ -189,7 +195,6 @@
outb_p(0x10,azt_port+6);
#define SWITCH_IDE_MASTER outb_p(0xa0,azt_port+6);
-static int aztPresent = 0;
#if 0
#define AZT_TEST
@@ -209,17 +214,14 @@
#define AFL_STATUSorDATA (AFL_STATUS | AFL_DATA)
#define AZT_BUF_SIZ 16
-static volatile int azt_transfer_is_active=0;
+#define READ_TIMEOUT 3000
-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
+#define azt_port aztcd /*needed for the modutils*/
-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;
+/*##########################################################################
+ Type Definitions
+ ##########################################################################
+*/
enum azt_state_e
{ AZT_S_IDLE, /* 0 */
AZT_S_START, /* 1 */
@@ -229,24 +231,39 @@
AZT_S_STOP, /* 5 */
AZT_S_STOPPING /* 6 */
};
-static volatile enum azt_state_e azt_state = AZT_S_IDLE;
-#ifdef AZT_TEST3
-static volatile enum azt_state_e azt_state_old = AZT_S_STOP;
-static volatile int azt_st_old = 0;
-#endif
enum azt_read_modes
{ AZT_MODE_0, /*read mode for audio disks, not supported by Aztech firmware*/
AZT_MODE_1, /*read mode for normal CD-ROMs*/
AZT_MODE_2 /*read mode for XA CD-ROMs*/
};
+
+/*##########################################################################
+ 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;
-#define READ_TIMEOUT 3000
-
-#define azt_port aztcd /*needed for the modutils*/
static int azt_port = AZT_BASE_ADDR;
static char azt_cont = 0;
@@ -265,35 +282,85 @@
static char aztDiskChanged = 1;
static char aztTocUpToDate = 0;
-static void azt_transfer(void);
-static void azt_poll(void);
-static void azt_invalidate_buffers(void);
-static void do_aztcd_request(void);
-static void azt_hsg2msf(long hsg, struct msf *msf);
-static void azt_bin2bcd(unsigned char *p);
-static long azt_msf2hsg(struct msf *mp);
-static int azt_bcd2bin(unsigned char bcd);
-static int aztStatus(void);
-static int getAztStatus(void);
+static unsigned char aztIndatum;
+static unsigned long aztTimeOutCount;
+static int aztCmd = 0;
+
+/*###########################################################################
+ Function Prototypes
+ ###########################################################################
+*/
+/* CDROM Drive Low Level I/O Functions */
+void op_ok(void);
+void pa_ok(void);
+void sten_low(void);
+void dten_low(void);
+void statusAzt(void);
+static void aztStatTimer(void);
+
+/* CDROM Drive Command Functions */
static int aztSendCmd(int cmd);
static int sendAztCmd(int cmd, struct azt_Play_msf *params);
+static int aztSeek(struct azt_Play_msf *params);
+static int aztSetDiskType(int type);
+static int aztStatus(void);
+static int getAztStatus(void);
+static int aztPlay(struct azt_Play_msf *arg);
+static void aztCloseDoor(void);
+static void aztLockDoor(void);
+static void aztUnlockDoor(void);
+static int aztGetValue(unsigned char *result);
static int aztGetQChannelInfo(struct azt_Toc *qp);
static int aztUpdateToc(void);
static int aztGetDiskInfo(void);
#if AZT_MULTISESSION
- static int aztGetMultiDiskInfo(void);
+ static int aztGetMultiDiskInfo(void);
#endif
static int aztGetToc(int multi);
-static int aztGetValue(unsigned char *result);
-static void aztStatTimer(void);
-static void aztCloseDoor(void);
-static void aztLockDoor(void);
-static void aztUnlockDoor(void);
-static unsigned char aztIndatum;
-static unsigned long aztTimeOutCount;
-static int aztCmd = 0;
+/* Kernel Interface Functions */
+void aztcd_setup(char *str, int *ints);
+static int check_aztcd_media_change(kdev_t full_dev);
+static int aztcd_ioctl(struct inode *ip, struct file *fp, unsigned int cmd, unsigned long arg);
+static void azt_transfer(void);
+static void do_aztcd_request(void);
+static void azt_invalidate_buffers(void);
+int aztcd_open(struct inode *ip, struct file *fp);
+static void aztcd_release(struct inode * inode, struct file * file);
+int aztcd_init(void);
+#ifdef MODULE
+ int init_module(void);
+ void cleanup_module(void);
+#endif MODULE
+static struct file_operations azt_fops = {
+ NULL, /* lseek - default */
+ block_read, /* read - general block-dev read */
+ block_write, /* write - general block-dev write */
+ NULL, /* readdir - bad */
+ NULL, /* select */
+ aztcd_ioctl, /* ioctl */
+ NULL, /* mmap */
+ aztcd_open, /* open */
+ aztcd_release, /* release */
+ NULL, /* fsync */
+ NULL, /* fasync*/
+ check_aztcd_media_change, /*media change*/
+ NULL /* revalidate*/
+};
+
+/* 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*/
@@ -375,43 +442,10 @@
SET_TIMER(aztStatTimer, HZ/100);
}
-void aztcd_setup(char *str, int *ints)
-{ if (ints[0] > 0)
- azt_port = ints[1];
- if (ints[0] > 1)
- azt_cont = ints[2];
-}
-
-/*
- * Subroutines to automatically close the door (tray) and
- * lock it closed when the cd is mounted. Leave the tray
- * locking as an option
- */
-static void aztCloseDoor(void)
-{
- aztSendCmd(ACMD_CLOSE);
- STEN_LOW;
- return;
-}
-
-static void aztLockDoor(void)
-{
-#if AZT_ALLOW_TRAY_LOCK
- aztSendCmd(ACMD_LOCK);
- STEN_LOW;
-#endif
- return;
-}
-
-static void aztUnlockDoor(void)
-{
-#if AZT_ALLOW_TRAY_LOCK
- aztSendCmd(ACMD_UNLOCK);
- STEN_LOW;
-#endif
- return;
-}
-
+/*##########################################################################
+ CDROM Drive Command Functions
+ ##########################################################################
+*/
/*
* Send a single command, return -1 on error, else 0
*/
@@ -557,14 +591,6 @@
}
-/*
- * Checking if the media has been changed not yet implemented
-*/
-static int check_aztcd_media_change(kdev_t full_dev)
-{ return 0;
-}
-
-
/* used in azt_poll to poll the status, expects another program to issue a
* ACMD_GET_STATUS directly before
*/
@@ -621,838 +647,847 @@
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 int aztcd_ioctl(struct inode *ip, struct file *fp, unsigned int cmd, unsigned long arg)
-{ int i, st;
- struct azt_Toc qInfo;
- struct cdrom_ti ti;
- struct cdrom_tochdr tocHdr;
- struct cdrom_msf msf;
- struct cdrom_tocentry entry;
- struct azt_Toc *tocPtr;
- struct cdrom_subchnl subchnl;
- struct cdrom_volctrl volctrl;
-
-#ifdef AZT_DEBUG
- printk("aztcd: starting aztcd_ioctl - Command:%x Time: %li\n",cmd, jiffies);
- printk("aztcd Status %x\n", getAztStatus());
+static void aztLockDoor(void)
+{
+#if AZT_ALLOW_TRAY_LOCK
+ aztSendCmd(ACMD_LOCK);
+ STEN_LOW;
#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 */
- }
+ return;
+}
- 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;
+static void aztUnlockDoor(void)
+{
+#if AZT_ALLOW_TRAY_LOCK
+ aztSendCmd(ACMD_UNLOCK);
+ STEN_LOW;
#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;
+ return;
+}
- 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 */
+/*
+ * Read a value from the drive. Should return quickly, so a busy wait
+ * is used to avoid excessive rescheduling. The read command itself must
+ * be issued with aztSendCmd() directly before
+ */
+static int aztGetValue(unsigned char *result)
+{ int s;
+
+ STEN_LOW;
+ if (aztTimeOutCount>=AZT_TIMEOUT)
+ { printk("aztcd: aztGetValue timeout\n");
+ return -1;
+ }
+ s = inb(DATA_PORT) & 0xFF;
+ *result = (unsigned char) s;
+ return 0;
+}
+
+/*
+ * Read the current Q-channel info. Also used for reading the
+ * table of contents.
+ */
+int aztGetQChannelInfo(struct azt_Toc *qp)
+{ unsigned char notUsed;
+ int st;
- if (aztSendCmd(ACMD_PAUSE)) RETURNM("aztcd_ioctl 8",-1);
- STEN_LOW_WAIT;
- aztAudioStatus = CDROM_AUDIO_PAUSED;
- break;
- case CDROMRESUME: /* Play it again, Sam */
- if (aztAudioStatus != CDROM_AUDIO_PAUSED) return -EINVAL;
- /* restart the drive at the saved position. */
- i = aztPlay(&azt_Play);
- if (i < 0)
- { aztAudioStatus = CDROM_AUDIO_ERROR;
- return -EIO;
- }
- aztAudioStatus = CDROM_AUDIO_PLAY;
- break;
- case CDROMMULTISESSION: /*multisession support -- experimental*/
- { struct cdrom_multisession ms;
#ifdef AZT_DEBUG
- printk("aztcd ioctl MULTISESSION\n");
-#endif
- st = verify_area(VERIFY_READ, (void*) arg, sizeof(struct cdrom_multisession));
- if (st) return st;
- memcpy_fromfs(&ms, (void*) arg, sizeof(struct cdrom_multisession));
- if (ms.addr_format == CDROM_MSF)
- { ms.addr.msf.minute = azt_bcd2bin(DiskInfo.lastSession.min);
- ms.addr.msf.second = azt_bcd2bin(DiskInfo.lastSession.sec);
- ms.addr.msf.frame = azt_bcd2bin(DiskInfo.lastSession.frame);
- }
- else if (ms.addr_format == CDROM_LBA)
- ms.addr.lba = azt_msf2hsg(&DiskInfo.lastSession);
- else
- return -EINVAL;
- ms.xa_flag = DiskInfo.xa;
- st = verify_area(VERIFY_WRITE, (void*) arg, sizeof(struct cdrom_multisession));
- if (st) return st;
- memcpy_tofs((void*) arg, &ms, sizeof(struct cdrom_multisession));
-#ifdef AZT_DEBUG
- if (ms.addr_format == CDROM_MSF)
- printk("aztcd multisession xa:%d, msf:%02x:%02x.%02x [%02x:%02x.%02x])\n",
- ms.xa_flag, ms.addr.msf.minute, ms.addr.msf.second,
- ms.addr.msf.frame, DiskInfo.lastSession.min,
- DiskInfo.lastSession.sec, DiskInfo.lastSession.frame);
- else
- printk("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. */
- st = verify_area(VERIFY_READ, (void *) arg, sizeof ti);
- if (st) return st;
- memcpy_fromfs(&ti, (void *) arg, sizeof ti);
- if (ti.cdti_trk0 < DiskInfo.first
- || ti.cdti_trk0 > DiskInfo.last
- || ti.cdti_trk1 < ti.cdti_trk0)
- { return -EINVAL;
- }
- if (ti.cdti_trk1 > DiskInfo.last)
- ti.cdti_trk1 = DiskInfo.last;
- azt_Play.start = Toc[ti.cdti_trk0].diskTime;
- azt_Play.end = Toc[ti.cdti_trk1 + 1].diskTime;
-#ifdef AZT_DEBUG
-printk("aztcd play: %02x:%02x.%02x to %02x:%02x.%02x\n",
- azt_Play.start.min, azt_Play.start.sec, azt_Play.start.frame,
- azt_Play.end.min, azt_Play.end.sec, azt_Play.end.frame);
+ printk("aztcd: starting aztGetQChannelInfo Time:%li\n",jiffies);
#endif
- i = aztPlay(&azt_Play);
- if (i < 0)
- { aztAudioStatus = CDROM_AUDIO_ERROR;
- return -EIO;
- }
- aztAudioStatus = CDROM_AUDIO_PLAY;
- break;
- case CDROMPLAYMSF: /* Play starting at the given MSF address. */
-/* if (aztAudioStatus == CDROM_AUDIO_PLAY)
- { if (aztSendCmd(ACMD_STOP)) RETURNM("aztcd_ioctl 9",-1);
- STEN_LOW;
- aztAudioStatus = CDROM_AUDIO_NO_STATUS;
- }
-*/
- st = verify_area(VERIFY_READ, (void *) arg, sizeof msf);
- if (st) return st;
- memcpy_fromfs(&msf, (void *) arg, sizeof msf);
- /* convert to bcd */
- azt_bin2bcd(&msf.cdmsf_min0);
- azt_bin2bcd(&msf.cdmsf_sec0);
- azt_bin2bcd(&msf.cdmsf_frame0);
- azt_bin2bcd(&msf.cdmsf_min1);
- azt_bin2bcd(&msf.cdmsf_sec1);
- azt_bin2bcd(&msf.cdmsf_frame1);
- azt_Play.start.min = msf.cdmsf_min0;
- azt_Play.start.sec = msf.cdmsf_sec0;
- azt_Play.start.frame = msf.cdmsf_frame0;
- azt_Play.end.min = msf.cdmsf_min1;
- azt_Play.end.sec = msf.cdmsf_sec1;
- azt_Play.end.frame = msf.cdmsf_frame1;
+ 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 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);
+ printk("aztcd: exiting aztGetQChannelInfo Time:%li\n",jiffies);
#endif
- i = aztPlay(&azt_Play);
- if (i < 0)
- { aztAudioStatus = CDROM_AUDIO_ERROR;
- return -EIO;
- }
- aztAudioStatus = CDROM_AUDIO_PLAY;
- break;
+ return 0;
+}
+
+/*
+ * Read the table of contents (TOC) and TOC header if necessary
+ */
+static int aztUpdateToc()
+{ int st;
- case CDROMREADTOCHDR: /* Read the table of contents header */
- st = verify_area(VERIFY_WRITE, (void *) arg, sizeof tocHdr);
- if (st) return st;
- tocHdr.cdth_trk0 = DiskInfo.first;
- tocHdr.cdth_trk1 = DiskInfo.last;
- memcpy_tofs((void *) arg, &tocHdr, sizeof tocHdr);
- break;
- case CDROMREADTOCENTRY: /* Read an entry in the table of contents */
- st = verify_area(VERIFY_READ, (void *) arg, sizeof entry);
- if (st) return st;
- st = verify_area(VERIFY_WRITE, (void *) arg, sizeof entry);
- if (st) return st;
- memcpy_fromfs(&entry, (void *) arg, sizeof entry);
- if ((!aztTocUpToDate)||aztDiskChanged) aztUpdateToc();
- if (entry.cdte_track == CDROM_LEADOUT)
- tocPtr = &Toc[DiskInfo.last + 1];
- else if (entry.cdte_track > DiskInfo.last
- || entry.cdte_track < DiskInfo.first)
- { return -EINVAL;
- }
- else
- tocPtr = &Toc[entry.cdte_track];
- entry.cdte_adr = tocPtr -> ctrl_addr;
- entry.cdte_ctrl = tocPtr -> ctrl_addr >> 4;
- if (entry.cdte_format == CDROM_LBA)
- entry.cdte_addr.lba = azt_msf2hsg(&tocPtr -> diskTime);
- else if (entry.cdte_format == CDROM_MSF)
- { entry.cdte_addr.msf.minute = azt_bcd2bin(tocPtr -> diskTime.min);
- entry.cdte_addr.msf.second = azt_bcd2bin(tocPtr -> diskTime.sec);
- entry.cdte_addr.msf.frame = azt_bcd2bin(tocPtr -> diskTime.frame);
- }
- else
- { return -EINVAL;
- }
- memcpy_tofs((void *) arg, &entry, sizeof entry);
- break;
- case CDROMSUBCHNL: /* Get subchannel info */
- st = verify_area(VERIFY_READ, (void *) arg, sizeof(struct cdrom_subchnl));
- if (st) {
#ifdef AZT_DEBUG
- printk("aztcd: exiting aztcd_ioctl - Error 1 - Command:%x\n",cmd);
+ printk("aztcd: starting aztUpdateToc Time:%li\n",jiffies);
+#endif
+ if (aztTocUpToDate)
+ return 0;
+
+ if (aztGetDiskInfo() < 0)
+ return -EIO;
+
+ if (aztGetToc(0) < 0)
+ return -EIO;
+
+ /*audio disk detection
+ with my Aztech drive there is no audio status bit, so I use the copy
+ protection bit of the first track. If this track is copy protected
+ (copy bit = 0), I assume, it's an audio disk. Strange, but works ??? */
+ if (!(Toc[DiskInfo.first].ctrl_addr & 0x40))
+ DiskInfo.audio=1;
+ else
+ DiskInfo.audio=0;
+
+ /* XA detection */
+ if (! DiskInfo.audio)
+ { azt_Play.start.min = 0; /*XA detection only seems to work*/
+ azt_Play.start.sec = 2; /*when we play a track*/
+ azt_Play.start.frame = 0;
+ azt_Play.end.min = 0;
+ azt_Play.end.sec = 0;
+ azt_Play.end.frame = 1;
+ if (sendAztCmd(ACMD_PLAY_READ, &azt_Play)) return -1;
+ DTEN_LOW;
+ for (st=0;st<CD_FRAMESIZE;st++) inb(DATA_PORT);
+ }
+ DiskInfo.xa = getAztStatus() & AST_MODE;
+ if (DiskInfo.xa)
+ { printk("aztcd: XA support experimental - mail results to zimmerma@rz.fht-esslingen.de\n");
+ }
+
+ /*multisession detection
+ support for multisession CDs is done automatically with Aztech drives,
+ we don't have to take care about TOC redirection; if we want the isofs
+ to take care about redirection, we have to set AZT_MULTISESSION to 1*/
+ DiskInfo.multi=0;
+#if AZT_MULTISESSION
+ if (DiskInfo.xa)
+ { aztGetMultiDiskInfo(); /*here Disk.Info.multi is set*/
+ }
#endif
- return st;
- }
- st = verify_area(VERIFY_WRITE, (void *) arg, sizeof(struct cdrom_subchnl));
- if (st) {
+ 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 aztcd_ioctl - Error 2 - Command:%x\n",cmd);
+ printk("aztcd: exiting aztUpdateToc Time:%li\n",jiffies);
#endif
- return st;
- }
- memcpy_fromfs(&subchnl, (void *) arg, sizeof (struct cdrom_subchnl));
- if (aztGetQChannelInfo(&qInfo) < 0)
- if (st) {
+ return 0;
+}
+
+
+/* Read the table of contents header, i.e. no. of tracks and start of first
+ * track
+ */
+static int aztGetDiskInfo()
+{ int limit;
+ unsigned char test;
+ struct azt_Toc qInfo;
+
#ifdef AZT_DEBUG
- printk("aztcd: exiting aztcd_ioctl - Error 3 - Command:%x\n",cmd);
+ printk("aztcd: starting aztGetDiskInfo Time:%li\n",jiffies);
#endif
- return -EIO;
- }
- subchnl.cdsc_audiostatus = aztAudioStatus;
- subchnl.cdsc_adr = qInfo.ctrl_addr;
- subchnl.cdsc_ctrl = qInfo.ctrl_addr >> 4;
- subchnl.cdsc_trk = azt_bcd2bin(qInfo.track);
- subchnl.cdsc_ind = azt_bcd2bin(qInfo.pointIndex);
- if (subchnl.cdsc_format == CDROM_LBA)
- { subchnl.cdsc_absaddr.lba = azt_msf2hsg(&qInfo.diskTime);
- subchnl.cdsc_reladdr.lba = azt_msf2hsg(&qInfo.trackTime);
- }
- else /*default*/
- { subchnl.cdsc_format = CDROM_MSF;
- subchnl.cdsc_absaddr.msf.minute = azt_bcd2bin(qInfo.diskTime.min);
- subchnl.cdsc_absaddr.msf.second = azt_bcd2bin(qInfo.diskTime.sec);
- subchnl.cdsc_absaddr.msf.frame = azt_bcd2bin(qInfo.diskTime.frame);
- subchnl.cdsc_reladdr.msf.minute = azt_bcd2bin(qInfo.trackTime.min);
- subchnl.cdsc_reladdr.msf.second = azt_bcd2bin(qInfo.trackTime.sec);
- subchnl.cdsc_reladdr.msf.frame = azt_bcd2bin(qInfo.trackTime.frame);
- }
- memcpy_tofs((void *) arg, &subchnl, sizeof (struct cdrom_subchnl));
- break;
- case CDROMVOLCTRL: /* Volume control
- * With my Aztech CD268-01A volume control does not work, I can only
- turn the channels on (any value !=0) or off (value==0). Maybe it
- works better with your drive */
- st=verify_area(VERIFY_READ,(void *) arg, sizeof(volctrl));
- if (st) return (st);
- memcpy_fromfs(&volctrl,(char *) arg,sizeof(volctrl));
- azt_Play.start.min = 0x21;
- azt_Play.start.sec = 0x84;
- azt_Play.start.frame = volctrl.channel0;
- azt_Play.end.min = volctrl.channel1;
- azt_Play.end.sec = volctrl.channel2;
- azt_Play.end.frame = volctrl.channel3;
- sendAztCmd(ACMD_SET_VOLUME, &azt_Play);
- STEN_LOW_WAIT;
- break;
- case CDROMEJECT:
- aztUnlockDoor(); /* Assume user knows what they're doing */
- /* all drives can at least stop! */
- if (aztAudioStatus == CDROM_AUDIO_PLAY)
- { if (aztSendCmd(ACMD_STOP)) RETURNM("azt_ioctl 10",-1);
- STEN_LOW_WAIT;
- }
- if (aztSendCmd(ACMD_EJECT)) RETURNM("azt_ioctl 11",-1);
- STEN_LOW_WAIT;
- aztAudioStatus = CDROM_AUDIO_NO_STATUS;
- break;
- case CDROMEJECT_SW:
- azt_auto_eject = (char) arg;
- break;
- case CDROMRESET:
- outb(ACMD_SOFT_RESET,CMD_PORT); /*send reset*/
- STEN_LOW;
- if (inb(DATA_PORT)!=AFL_OP_OK) /*OP_OK?*/
- { printk("aztcd: AZTECH CD-ROM drive does not respond\n");
- }
- break;
-/*Take care, the following code is not compatible with other CD-ROM drivers,
- use it at your own risk with cdplay.c. Set AZT_PRIVATE_IOCTLS to 0 in aztcd.h,
- if you do not want to use it!
-*/
-#if AZT_PRIVATE_IOCTLS
- case CDROMREADCOOKED: /*read data in mode 1 (2048 Bytes)*/
- case CDROMREADRAW: /*read data in mode 2 (2336 Bytes)*/
- { st = verify_area(VERIFY_READ, (void *) arg, sizeof msf);
- if (st) return st;
- st = verify_area(VERIFY_WRITE, (void *) arg, sizeof buf);
- if (st) return st;
- memcpy_fromfs(&msf, (void *) arg, sizeof msf);
- /* convert to bcd */
- azt_bin2bcd(&msf.cdmsf_min0);
- azt_bin2bcd(&msf.cdmsf_sec0);
- azt_bin2bcd(&msf.cdmsf_frame0);
- msf.cdmsf_min1=0;
- msf.cdmsf_sec1=0;
- msf.cdmsf_frame1=1; /*read only one frame*/
- azt_Play.start.min = msf.cdmsf_min0;
- azt_Play.start.sec = msf.cdmsf_sec0;
- azt_Play.start.frame = msf.cdmsf_frame0;
- azt_Play.end.min = msf.cdmsf_min1;
- azt_Play.end.sec = msf.cdmsf_sec1;
- azt_Play.end.frame = msf.cdmsf_frame1;
- if (cmd==CDROMREADRAW)
- { if (DiskInfo.xa)
- { return -1; /*XA Disks can't be read raw*/
- }
- else
- { if (sendAztCmd(ACMD_PLAY_READ_RAW, &azt_Play)) return -1;
- DTEN_LOW;
- insb(DATA_PORT,buf,CD_FRAMESIZE_RAW);
- memcpy_tofs((void *) arg, &buf, CD_FRAMESIZE_RAW);
- }
- }
- else /*CDROMREADCOOKED*/
- { if (sendAztCmd(ACMD_PLAY_READ, &azt_Play)) return -1;
- DTEN_LOW;
- insb(DATA_PORT,buf,CD_FRAMESIZE);
- memcpy_tofs((void *) arg, &buf, CD_FRAMESIZE);
- }
- }
- break;
- case CDROMSEEK: /*seek msf address*/
- st = verify_area(VERIFY_READ, (void *) arg, sizeof msf);
- if (st) return st;
- memcpy_fromfs(&msf, (void *) arg, sizeof msf);
- /* convert to bcd */
- azt_bin2bcd(&msf.cdmsf_min0);
- azt_bin2bcd(&msf.cdmsf_sec0);
- azt_bin2bcd(&msf.cdmsf_frame0);
- azt_Play.start.min = msf.cdmsf_min0;
- azt_Play.start.sec = msf.cdmsf_sec0;
- azt_Play.start.frame = msf.cdmsf_frame0;
- if (aztSeek(&azt_Play)) return -1;
- break;
-#endif /*end of incompatible code*/
- case CDROMREADMODE1: /*set read data in mode 1*/
- return aztSetDiskType(AZT_MODE_1);
- case CDROMREADMODE2: /*set read data in mode 2*/
- return aztSetDiskType(AZT_MODE_2);
- default:
- return -EINVAL;
+ 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 aztcd_ioctl Command:%x Time:%li\n",cmd,jiffies);
+ 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
- return 0;
+ if (test!=0x0F) return -1;
+ return 0;
}
-
+#if AZT_MULTISESSION
/*
- * Take care of the different block sizes between cdrom and Linux.
- * When Linux gets variable block sizes this will probably go away.
+ * Get Multisession Disk Info
*/
-static void azt_transfer(void)
-{
-#ifdef AZT_TEST
- printk("aztcd: executing azt_transfer Time:%li\n",jiffies);
-#endif
- if (CURRENT_VALID) {
- while (CURRENT -> nr_sectors) {
- int bn = CURRENT -> sector / 4;
- int i;
- for (i = 0; i < AZT_BUF_SIZ && azt_buf_bn[i] != bn; ++i)
- ;
- if (i < AZT_BUF_SIZ) {
- int offs = (i * 4 + (CURRENT -> sector & 3)) * 512;
- int nr_sectors = 4 - (CURRENT -> sector & 3);
- if (azt_buf_out != i) {
- azt_buf_out = i;
- if (azt_buf_bn[i] != bn) {
- azt_buf_out = -1;
- continue;
- }
- }
- if (nr_sectors > CURRENT -> nr_sectors)
- nr_sectors = CURRENT -> nr_sectors;
- memcpy(CURRENT -> buffer, azt_buf + offs, nr_sectors * 512);
- CURRENT -> nr_sectors -= nr_sectors;
- CURRENT -> sector += nr_sectors;
- CURRENT -> buffer += nr_sectors * 512;
- } else {
- azt_buf_out = -1;
- break;
- }
- }
- }
-}
-
+static int aztGetMultiDiskInfo(void)
+{ int limit, k=5;
+ unsigned char test;
+ struct azt_Toc qInfo;
-static void do_aztcd_request(void)
-{
-#ifdef AZT_TEST
- printk(" do_aztcd_request(%ld+%ld) Time:%li\n", CURRENT -> sector, CURRENT -> nr_sectors,jiffies);
-#endif
- if (DiskInfo.audio)
- { printk("aztcd: Error, tried to mount an Audio CD\n");
- end_request(0);
- return;
- }
- azt_transfer_is_active = 1;
- while (CURRENT_VALID) {
- if (CURRENT->bh) {
- if (!buffer_locked(CURRENT->bh))
- panic(DEVICE_NAME ": block not locked");
- }
- azt_transfer();
- if (CURRENT -> nr_sectors == 0) {
- end_request(1);
- } else {
- azt_buf_out = -1; /* Want to read a block not in buffer */
- if (azt_state == AZT_S_IDLE) {
- if ((!aztTocUpToDate)||aztDiskChanged) {
- if (aztUpdateToc() < 0) {
- while (CURRENT_VALID)
- end_request(0);
- break;
- }
- }
- azt_state = AZT_S_START;
- AztTries = 5;
- SET_TIMER(azt_poll, HZ/100);
- }
- break;
- }
- }
- azt_transfer_is_active = 0;
-#ifdef AZT_TEST2
- printk("azt_next_bn:%x azt_buf_in:%x azt_buf_out:%x azt_buf_bn:%x\n", \
- azt_next_bn, azt_buf_in, azt_buf_out, azt_buf_bn[azt_buf_in]);
- printk(" do_aztcd_request ends Time:%li\n",jiffies);
+#ifdef AZT_DEBUG
+ printk("aztcd: starting aztGetMultiDiskInfo\n");
#endif
-}
-static void azt_poll(void)
-{
- int st = 0;
- int loop_ctl = 1;
- int skip = 0;
+ 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;
- 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);
+ 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
- if (!AztTries--) {
- printk("aztcd: Read of Block %d Failed, Maybe Audio Disk? Giving up\n", azt_next_bn);
- if (azt_transfer_is_active) {
- AztTries = 0;
- loop_ctl = 0;
- }
- if (CURRENT_VALID)
- end_request(0);
- AztTries = 5;
- }
- azt_error = 0;
- azt_state = AZT_S_STOP;
- }
-
- while (loop_ctl)
- {
- loop_ctl = 0; /* each case must flip this back to 1 if we want
- to come back up here */
- switch (azt_state) {
-
- case AZT_S_IDLE:
-#ifdef AZT_TEST3
- if (azt_state!=azt_state_old) {
- azt_state_old=azt_state;
- printk("AZT_S_IDLE\n");
- }
+ 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
- return;
+ if (test!=0x0F)
+ break;
+ else
+ DiskInfo.multi=1; /*found TOC of more than one session*/
+ aztGetToc(1);
+ } while(--k);
- case AZT_S_START:
-#ifdef AZT_TEST3
- if (azt_state!=azt_state_old) {
- azt_state_old=azt_state;
- printk("AZT_S_START\n");
- }
+#ifdef AZT_DEBUG
+ printk ("aztcd: exiting aztGetMultiDiskInfo Time:%li\n",jiffies);
+#endif
+ return 0;
+}
#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");
- }
+/*
+ * 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 (!skip) {
- if ((st = aztStatus()) != -1) {
- if ((st & AST_DSK_CHG)||(st & AST_NOT_READY)) {
- aztDiskChanged = 1;
- aztTocUpToDate = 0;
- azt_invalidate_buffers();
- end_request(0);
- printk("aztcd: Disk Changed or Not Ready 1 - Unmount Disk!\n");
- }
- } else break;
- }
- skip = 0;
+ if (!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;
+ }
- if ((st & AST_DOOR_OPEN)||(st & AST_NOT_READY)) {
- aztDiskChanged = 1;
- aztTocUpToDate = 0;
- printk("aztcd: Disk Changed or Not Ready 2 - Unmount Disk!\n");
- end_request(0);
- printk((st & AST_DOOR_OPEN) ? "aztcd: door open\n" : "aztcd: disk removed\n");
- if (azt_transfer_is_active) {
- azt_state = AZT_S_START;
- loop_ctl = 1; /* goto immediately */
- break;
- }
- azt_state = AZT_S_IDLE;
- while (CURRENT_VALID)
- end_request(0);
- return;
- }
-
-/* if (aztSendCmd(ACMD_SET_MODE)) RETURN("azt_poll 3");
- outb(0x01, DATA_PORT);
- PA_OK;
- STEN_LOW;
-*/ if (aztSendCmd(ACMD_GET_STATUS)) RETURN("azt_poll 4");
- STEN_LOW;
- azt_mode = 1;
- azt_state = AZT_S_READ;
- AztTimeout = 3000;
+/*Is there a good reason to stop motor before TOC read?
+ if (aztSendCmd(ACMD_STOP)) RETURNM("aztGetToc 1",-1);
+ STEN_LOW_WAIT;
+*/
- break;
+ 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);
- case AZT_S_READ:
-#ifdef AZT_TEST3
- if (azt_state!=azt_state_old) {
- azt_state_old=azt_state;
- printk("AZT_S_READ\n");
- }
-#endif
- if (!skip) {
- if ((st = aztStatus()) != -1) {
- if ((st & AST_DSK_CHG)||(st & AST_NOT_READY)) {
- aztDiskChanged = 1;
- aztTocUpToDate = 0;
- azt_invalidate_buffers();
- printk("aztcd: Disk Changed or Not Ready 3 - Unmount Disk!\n");
- end_request(0);
- }
- } else break;
- }
-
- skip = 0;
- if ((st & AST_DOOR_OPEN)||(st & AST_NOT_READY)) {
- aztDiskChanged = 1;
- aztTocUpToDate = 0;
- printk((st & AST_DOOR_OPEN) ? "aztcd: door open\n" : "aztcd: disk removed\n");
- if (azt_transfer_is_active) {
- azt_state = AZT_S_START;
- loop_ctl = 1;
- break;
- }
- azt_state = AZT_S_IDLE;
- while (CURRENT_VALID)
- end_request(0);
- return;
- }
+ if (px > 0 && px < MAX_TRACKS && qInfo.track == 0)
+ if (Toc[px].pointIndex == 0)
+ { Toc[px] = qInfo;
+ i--;
+ }
- 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;
+ if (i <= 0)
break;
- }
-
- break;
+ }
+ Toc[DiskInfo.last + 1].diskTime = DiskInfo.diskLength;
+ Toc[DiskInfo.last].trackTime = DiskInfo.diskLength;
- case AZT_S_DATA:
-#ifdef AZT_TEST3
- if (azt_state!=azt_state_old) {
- azt_state_old=azt_state;
- printk("AZT_S_DATA\n");
- }
+#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
- st = inb(STATUS_PORT) & AFL_STATUSorDATA;
+ return limit > 0 ? 0 : -1;
+}
- switch (st) {
- case AFL_DATA:
-#ifdef AZT_TEST3
- if (st!=azt_st_old) {
- azt_st_old=st;
- printk("---AFL_DATA st:%x\n",st);
- }
+/*##########################################################################
+ Kernel Interface Functions
+ ##########################################################################
+*/
+void aztcd_setup(char *str, int *ints)
+{ if (ints[0] > 0)
+ azt_port = ints[1];
+ if (ints[0] > 1)
+ azt_cont = ints[2];
+}
+
+/*
+ * Checking if the media has been changed not yet implemented
+*/
+static int check_aztcd_media_change(kdev_t full_dev)
+{ return 0;
+}
+
+/*
+ * Kernel IO-controls
+*/
+static int aztcd_ioctl(struct inode *ip, struct file *fp, unsigned int cmd, unsigned long arg)
+{ int i, st;
+ struct azt_Toc qInfo;
+ struct cdrom_ti ti;
+ struct cdrom_tochdr tocHdr;
+ struct cdrom_msf msf;
+ struct cdrom_tocentry entry;
+ struct azt_Toc *tocPtr;
+ struct cdrom_subchnl subchnl;
+ struct cdrom_volctrl volctrl;
+
+#ifdef AZT_DEBUG
+ printk("aztcd: starting aztcd_ioctl - Command:%x Time: %li\n",cmd, jiffies);
+ printk("aztcd Status %x\n", getAztStatus());
#endif
- if (!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 (!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);
}
- if (CURRENT_VALID)
- end_request(0);
- AztTries = 5;
- }
- azt_state = AZT_S_START;
- AztTimeout = READ_TIMEOUT;
- loop_ctl = 1;
- break;
+ azt_Play.start = qInfo.diskTime; /* remember restart point */
- case AFL_STATUSorDATA:
-#ifdef AZT_TEST3
- if (st!=azt_st_old) {
- azt_st_old=st;
- printk("---AFL_STATUSorDATA st:%x\n",st);
- }
+ 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
- break;
+ st = verify_area(VERIFY_READ, (void*) arg, sizeof(struct cdrom_multisession));
+ if (st) return st;
+ memcpy_fromfs(&ms, (void*) arg, sizeof(struct cdrom_multisession));
+ if (ms.addr_format == CDROM_MSF)
+ { ms.addr.msf.minute = azt_bcd2bin(DiskInfo.lastSession.min);
+ ms.addr.msf.second = azt_bcd2bin(DiskInfo.lastSession.sec);
+ ms.addr.msf.frame = azt_bcd2bin(DiskInfo.lastSession.frame);
+ }
+ else if (ms.addr_format == CDROM_LBA)
+ ms.addr.lba = azt_msf2hsg(&DiskInfo.lastSession);
+ else
+ return -EINVAL;
+ ms.xa_flag = DiskInfo.xa;
+ st = verify_area(VERIFY_WRITE, (void*) arg, sizeof(struct cdrom_multisession));
+ if (st) return st;
+ memcpy_tofs((void*) arg, &ms, sizeof(struct cdrom_multisession));
+#ifdef AZT_DEBUG
+ if (ms.addr_format == CDROM_MSF)
+ printk("aztcd multisession xa:%d, msf:%02x:%02x.%02x [%02x:%02x.%02x])\n",
+ ms.xa_flag, ms.addr.msf.minute, ms.addr.msf.second,
+ ms.addr.msf.frame, DiskInfo.lastSession.min,
+ DiskInfo.lastSession.sec, DiskInfo.lastSession.frame);
+ else
+ printk("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. */
+ st = verify_area(VERIFY_READ, (void *) arg, sizeof ti);
+ if (st) return st;
+ memcpy_fromfs(&ti, (void *) arg, sizeof ti);
+ if (ti.cdti_trk0 < DiskInfo.first
+ || ti.cdti_trk0 > DiskInfo.last
+ || ti.cdti_trk1 < ti.cdti_trk0)
+ { return -EINVAL;
+ }
+ if (ti.cdti_trk1 > DiskInfo.last)
+ ti.cdti_trk1 = DiskInfo.last;
+ azt_Play.start = Toc[ti.cdti_trk0].diskTime;
+ azt_Play.end = Toc[ti.cdti_trk1 + 1].diskTime;
+#ifdef AZT_DEBUG
+printk("aztcd play: %02x:%02x.%02x to %02x:%02x.%02x\n",
+ azt_Play.start.min, azt_Play.start.sec, azt_Play.start.frame,
+ azt_Play.end.min, azt_Play.end.sec, azt_Play.end.frame);
+#endif
+ i = aztPlay(&azt_Play);
+ if (i < 0)
+ { aztAudioStatus = CDROM_AUDIO_ERROR;
+ return -EIO;
+ }
+ aztAudioStatus = CDROM_AUDIO_PLAY;
+ break;
+ case CDROMPLAYMSF: /* Play starting at the given MSF address. */
+/* if (aztAudioStatus == CDROM_AUDIO_PLAY)
+ { if (aztSendCmd(ACMD_STOP)) RETURNM("aztcd_ioctl 9",-1);
+ STEN_LOW;
+ aztAudioStatus = CDROM_AUDIO_NO_STATUS;
+ }
+*/
+ st = verify_area(VERIFY_READ, (void *) arg, sizeof msf);
+ if (st) return st;
+ memcpy_fromfs(&msf, (void *) arg, sizeof msf);
+ /* convert to bcd */
+ azt_bin2bcd(&msf.cdmsf_min0);
+ azt_bin2bcd(&msf.cdmsf_sec0);
+ azt_bin2bcd(&msf.cdmsf_frame0);
+ azt_bin2bcd(&msf.cdmsf_min1);
+ azt_bin2bcd(&msf.cdmsf_sec1);
+ azt_bin2bcd(&msf.cdmsf_frame1);
+ azt_Play.start.min = msf.cdmsf_min0;
+ azt_Play.start.sec = msf.cdmsf_sec0;
+ azt_Play.start.frame = msf.cdmsf_frame0;
+ azt_Play.end.min = msf.cdmsf_min1;
+ azt_Play.end.sec = msf.cdmsf_sec1;
+ azt_Play.end.frame = msf.cdmsf_frame1;
+#ifdef AZT_DEBUG
+printk("aztcd play: %02x:%02x.%02x to %02x:%02x.%02x\n",
+azt_Play.start.min, azt_Play.start.sec, azt_Play.start.frame,
+azt_Play.end.min, azt_Play.end.sec, azt_Play.end.frame);
+#endif
+ i = aztPlay(&azt_Play);
+ if (i < 0)
+ { aztAudioStatus = CDROM_AUDIO_ERROR;
+ return -EIO;
+ }
+ aztAudioStatus = CDROM_AUDIO_PLAY;
+ break;
- default:
-#ifdef AZT_TEST3
- if (st!=azt_st_old) {
- azt_st_old=st;
- printk("---default: st:%x\n",st);
- }
+ case CDROMREADTOCHDR: /* Read the table of contents header */
+ st = verify_area(VERIFY_WRITE, (void *) arg, sizeof tocHdr);
+ if (st) return st;
+ tocHdr.cdth_trk0 = DiskInfo.first;
+ tocHdr.cdth_trk1 = DiskInfo.last;
+ memcpy_tofs((void *) arg, &tocHdr, sizeof tocHdr);
+ break;
+ case CDROMREADTOCENTRY: /* Read an entry in the table of contents */
+ st = verify_area(VERIFY_READ, (void *) arg, sizeof entry);
+ if (st) return st;
+ st = verify_area(VERIFY_WRITE, (void *) arg, sizeof entry);
+ if (st) return st;
+ memcpy_fromfs(&entry, (void *) arg, sizeof entry);
+ if ((!aztTocUpToDate)||aztDiskChanged) aztUpdateToc();
+ if (entry.cdte_track == CDROM_LEADOUT)
+ tocPtr = &Toc[DiskInfo.last + 1];
+ else if (entry.cdte_track > DiskInfo.last
+ || entry.cdte_track < DiskInfo.first)
+ { return -EINVAL;
+ }
+ else
+ tocPtr = &Toc[entry.cdte_track];
+ entry.cdte_adr = tocPtr -> ctrl_addr;
+ entry.cdte_ctrl = tocPtr -> ctrl_addr >> 4;
+ if (entry.cdte_format == CDROM_LBA)
+ entry.cdte_addr.lba = azt_msf2hsg(&tocPtr -> diskTime);
+ else if (entry.cdte_format == CDROM_MSF)
+ { entry.cdte_addr.msf.minute = azt_bcd2bin(tocPtr -> diskTime.min);
+ entry.cdte_addr.msf.second = azt_bcd2bin(tocPtr -> diskTime.sec);
+ entry.cdte_addr.msf.frame = azt_bcd2bin(tocPtr -> diskTime.frame);
+ }
+ else
+ { return -EINVAL;
+ }
+ memcpy_tofs((void *) arg, &entry, sizeof entry);
+ break;
+ case CDROMSUBCHNL: /* Get subchannel info */
+ st = verify_area(VERIFY_READ, (void *) arg, sizeof(struct cdrom_subchnl));
+ if (st) {
+#ifdef AZT_DEBUG
+ printk("aztcd: exiting aztcd_ioctl - Error 1 - Command:%x\n",cmd);
#endif
- AztTries = 5;
- if (!CURRENT_VALID && azt_buf_in == azt_buf_out) {
- azt_state = AZT_S_STOP;
- loop_ctl = 1;
+ return st;
+ }
+ st = verify_area(VERIFY_WRITE, (void *) arg, sizeof(struct cdrom_subchnl));
+ if (st) {
+#ifdef AZT_DEBUG
+ printk("aztcd: exiting aztcd_ioctl - Error 2 - Command:%x\n",cmd);
+#endif
+ return st;
+ }
+ memcpy_fromfs(&subchnl, (void *) arg, sizeof (struct cdrom_subchnl));
+ if (aztGetQChannelInfo(&qInfo) < 0)
+ if (st) {
+#ifdef AZT_DEBUG
+ printk("aztcd: exiting aztcd_ioctl - Error 3 - Command:%x\n",cmd);
+#endif
+ return -EIO;
+ }
+ subchnl.cdsc_audiostatus = aztAudioStatus;
+ subchnl.cdsc_adr = qInfo.ctrl_addr;
+ subchnl.cdsc_ctrl = qInfo.ctrl_addr >> 4;
+ subchnl.cdsc_trk = azt_bcd2bin(qInfo.track);
+ subchnl.cdsc_ind = azt_bcd2bin(qInfo.pointIndex);
+ if (subchnl.cdsc_format == CDROM_LBA)
+ { subchnl.cdsc_absaddr.lba = azt_msf2hsg(&qInfo.diskTime);
+ subchnl.cdsc_reladdr.lba = azt_msf2hsg(&qInfo.trackTime);
+ }
+ else /*default*/
+ { subchnl.cdsc_format = CDROM_MSF;
+ subchnl.cdsc_absaddr.msf.minute = azt_bcd2bin(qInfo.diskTime.min);
+ subchnl.cdsc_absaddr.msf.second = azt_bcd2bin(qInfo.diskTime.sec);
+ subchnl.cdsc_absaddr.msf.frame = azt_bcd2bin(qInfo.diskTime.frame);
+ subchnl.cdsc_reladdr.msf.minute = azt_bcd2bin(qInfo.trackTime.min);
+ subchnl.cdsc_reladdr.msf.second = azt_bcd2bin(qInfo.trackTime.sec);
+ subchnl.cdsc_reladdr.msf.frame = azt_bcd2bin(qInfo.trackTime.frame);
+ }
+ memcpy_tofs((void *) arg, &subchnl, sizeof (struct cdrom_subchnl));
break;
- }
- if (azt_read_count<=0)
- printk("aztcd: warning - try to read 0 frames\n");
- while (azt_read_count) /*??? fast read ahead loop*/
- { azt_buf_bn[azt_buf_in] = -1;
- DTEN_LOW; /*??? unsolved problem, very
- seldom we get timeouts
- here, don't now the real
- reason. With my drive this
- sometimes also happens with
- Aztech's original driver under
- DOS. Is it a hardware bug?
- I tried to recover from such
- situations here. Zimmermann*/
- if (aztTimeOutCount>=AZT_TIMEOUT)
- { printk("read_count:%d CURRENT->nr_sectors:%ld azt_buf_in:%d\n", azt_read_count,CURRENT->nr_sectors,azt_buf_in);
- printk("azt_transfer_is_active:%x\n",azt_transfer_is_active);
- azt_read_count=0;
- azt_state = AZT_S_STOP;
- loop_ctl = 1;
- end_request(1); /*should we have here (1) or (0)? */
- }
- else
- { if (azt_read_mode==AZT_MODE_2)
- { insb(DATA_PORT, azt_buf + CD_FRAMESIZE_RAW * azt_buf_in, CD_FRAMESIZE_RAW);
+ case CDROMVOLCTRL: /* Volume control
+ * With my Aztech CD268-01A volume control does not work, I can only
+ turn the channels on (any value !=0) or off (value==0). Maybe it
+ works better with your drive */
+ st=verify_area(VERIFY_READ,(void *) arg, sizeof(volctrl));
+ if (st) return (st);
+ memcpy_fromfs(&volctrl,(char *) arg,sizeof(volctrl));
+ azt_Play.start.min = 0x21;
+ azt_Play.start.sec = 0x84;
+ azt_Play.start.frame = volctrl.channel0;
+ azt_Play.end.min = volctrl.channel1;
+ azt_Play.end.sec = volctrl.channel2;
+ azt_Play.end.frame = volctrl.channel3;
+ sendAztCmd(ACMD_SET_VOLUME, &azt_Play);
+ STEN_LOW_WAIT;
+ break;
+ case CDROMEJECT:
+ aztUnlockDoor(); /* Assume user knows what they're doing */
+ /* all drives can at least stop! */
+ if (aztAudioStatus == CDROM_AUDIO_PLAY)
+ { if (aztSendCmd(ACMD_STOP)) RETURNM("azt_ioctl 10",-1);
+ STEN_LOW_WAIT;
+ }
+ if (aztSendCmd(ACMD_EJECT)) RETURNM("azt_ioctl 11",-1);
+ STEN_LOW_WAIT;
+ aztAudioStatus = CDROM_AUDIO_NO_STATUS;
+ break;
+ case CDROMEJECT_SW:
+ azt_auto_eject = (char) arg;
+ break;
+ case CDROMRESET:
+ outb(ACMD_SOFT_RESET,CMD_PORT); /*send reset*/
+ STEN_LOW;
+ if (inb(DATA_PORT)!=AFL_OP_OK) /*OP_OK?*/
+ { printk("aztcd: AZTECH CD-ROM drive does not respond\n");
+ }
+ break;
+/*Take care, the following code is not compatible with other CD-ROM drivers,
+ use it at your own risk with cdplay.c. Set AZT_PRIVATE_IOCTLS to 0 in aztcd.h,
+ if you do not want to use it!
+*/
+#if AZT_PRIVATE_IOCTLS
+ case CDROMREADCOOKED: /*read data in mode 1 (2048 Bytes)*/
+ case CDROMREADRAW: /*read data in mode 2 (2336 Bytes)*/
+ { st = verify_area(VERIFY_READ, (void *) arg, sizeof msf);
+ if (st) return st;
+ st = verify_area(VERIFY_WRITE, (void *) arg, sizeof buf);
+ if (st) return st;
+ memcpy_fromfs(&msf, (void *) arg, sizeof msf);
+ /* convert to bcd */
+ azt_bin2bcd(&msf.cdmsf_min0);
+ azt_bin2bcd(&msf.cdmsf_sec0);
+ azt_bin2bcd(&msf.cdmsf_frame0);
+ msf.cdmsf_min1=0;
+ msf.cdmsf_sec1=0;
+ msf.cdmsf_frame1=1; /*read only one frame*/
+ azt_Play.start.min = msf.cdmsf_min0;
+ azt_Play.start.sec = msf.cdmsf_sec0;
+ azt_Play.start.frame = msf.cdmsf_frame0;
+ azt_Play.end.min = msf.cdmsf_min1;
+ azt_Play.end.sec = msf.cdmsf_sec1;
+ azt_Play.end.frame = msf.cdmsf_frame1;
+ if (cmd==CDROMREADRAW)
+ { if (DiskInfo.xa)
+ { return -1; /*XA Disks can't be read raw*/
}
- else
- { 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;
+ else
+ { if (sendAztCmd(ACMD_PLAY_READ_RAW, &azt_Play)) return -1;
+ DTEN_LOW;
+ insb(DATA_PORT,buf,CD_FRAMESIZE_RAW);
+ memcpy_tofs((void *) arg, &buf, CD_FRAMESIZE_RAW);
+ }
+ }
+ else /*CDROMREADCOOKED*/
+ { if (sendAztCmd(ACMD_PLAY_READ, &azt_Play)) return -1;
+ DTEN_LOW;
+ insb(DATA_PORT,buf,CD_FRAMESIZE);
+ memcpy_tofs((void *) arg, &buf, CD_FRAMESIZE);
}
- }
- if (!azt_transfer_is_active) {
- while (CURRENT_VALID) {
- azt_transfer();
- if (CURRENT -> nr_sectors == 0)
- end_request(1);
- else
- break;
- }
- }
-
- if (CURRENT_VALID
- && (CURRENT -> sector / 4 < azt_next_bn ||
- CURRENT -> sector / 4 > azt_next_bn + AZT_BUF_SIZ)) {
- azt_state = AZT_S_STOP;
- loop_ctl = 1;
- break;
- }
- AztTimeout = READ_TIMEOUT;
- if (azt_read_count==0) {
- azt_state = AZT_S_STOP;
- loop_ctl = 1;
- break;
- }
- break;
- }
- break;
-
-
- case AZT_S_STOP:
-#ifdef AZT_TEST3
- if (azt_state!=azt_state_old) {
- azt_state_old=azt_state;
- printk("AZT_S_STOP\n");
- }
+ }
+ break;
+ case CDROMSEEK: /*seek msf address*/
+ st = verify_area(VERIFY_READ, (void *) arg, sizeof msf);
+ if (st) return st;
+ memcpy_fromfs(&msf, (void *) arg, sizeof msf);
+ /* convert to bcd */
+ azt_bin2bcd(&msf.cdmsf_min0);
+ azt_bin2bcd(&msf.cdmsf_sec0);
+ azt_bin2bcd(&msf.cdmsf_frame0);
+ azt_Play.start.min = msf.cdmsf_min0;
+ azt_Play.start.sec = msf.cdmsf_sec0;
+ azt_Play.start.frame = msf.cdmsf_frame0;
+ if (aztSeek(&azt_Play)) return -1;
+ break;
+#endif /*end of incompatible code*/
+ case CDROMREADMODE1: /*set read data in mode 1*/
+ return aztSetDiskType(AZT_MODE_1);
+ case CDROMREADMODE2: /*set read data in mode 2*/
+ return aztSetDiskType(AZT_MODE_2);
+ default:
+ return -EINVAL;
+ }
+#ifdef AZT_DEBUG
+ printk("aztcd: exiting aztcd_ioctl Command:%x Time:%li\n",cmd,jiffies);
#endif
- 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;
+ return 0;
+}
- case AZT_S_STOPPING:
-#ifdef AZT_TEST3
- if (azt_state!=azt_state_old) {
- azt_state_old=azt_state;
- printk("AZT_S_STOPPING\n");
- }
+/*
+ * 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 ((st = aztStatus()) == -1 && AztTimeout)
- break;
-
- if ((st != -1) && ((st & AST_DSK_CHG)||(st & AST_NOT_READY))) {
- aztDiskChanged = 1;
- aztTocUpToDate = 0;
- azt_invalidate_buffers();
- printk("aztcd: Disk Changed or Not Ready 4 - Unmount Disk!\n");
- end_request(0);
+ if (CURRENT_VALID) {
+ while (CURRENT -> nr_sectors) {
+ int bn = CURRENT -> sector / 4;
+ int i;
+ for (i = 0; i < AZT_BUF_SIZ && azt_buf_bn[i] != bn; ++i)
+ ;
+ if (i < AZT_BUF_SIZ) {
+ int offs = (i * 4 + (CURRENT -> sector & 3)) * 512;
+ int nr_sectors = 4 - (CURRENT -> sector & 3);
+ if (azt_buf_out != i) {
+ azt_buf_out = i;
+ if (azt_buf_bn[i] != bn) {
+ azt_buf_out = -1;
+ continue;
}
+ }
+ if (nr_sectors > CURRENT -> nr_sectors)
+ nr_sectors = CURRENT -> nr_sectors;
+ memcpy(CURRENT -> buffer, azt_buf + offs, nr_sectors * 512);
+ CURRENT -> nr_sectors -= nr_sectors;
+ CURRENT -> sector += nr_sectors;
+ CURRENT -> buffer += nr_sectors * 512;
+ } else {
+ azt_buf_out = -1;
+ break;
+ }
+ }
+ }
+}
-
-#ifdef AZT_TEST3
- printk("CURRENT_VALID %d azt_mode %d\n",
- CURRENT_VALID, azt_mode);
+static void do_aztcd_request(void)
+{
+#ifdef AZT_TEST
+ printk(" do_aztcd_request(%ld+%ld) Time:%li\n", CURRENT -> sector, CURRENT -> nr_sectors,jiffies);
#endif
-
- if (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;
+ if (DiskInfo.audio)
+ { printk("aztcd: Error, tried to mount an Audio CD\n");
+ end_request(0);
+ return;
+ }
+ azt_transfer_is_active = 1;
+ while (CURRENT_VALID) {
+ if (CURRENT->bh) {
+ if (!buffer_locked(CURRENT->bh))
+ panic(DEVICE_NAME ": block not locked");
+ }
+ azt_transfer();
+ if (CURRENT -> nr_sectors == 0) {
+ end_request(1);
+ } else {
+ azt_buf_out = -1; /* Want to read a block not in buffer */
+ if (azt_state == AZT_S_IDLE) {
+ if ((!aztTocUpToDate)||aztDiskChanged) {
+ if (aztUpdateToc() < 0) {
+ while (CURRENT_VALID)
+ end_request(0);
+ break;
}
- 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);
+ }
+ 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;
@@ -1531,21 +1566,6 @@
}
-static struct file_operations azt_fops = {
- NULL, /* lseek - default */
- block_read, /* read - general block-dev read */
- block_write, /* write - general block-dev write */
- NULL, /* readdir - bad */
- NULL, /* select */
- aztcd_ioctl, /* ioctl */
- NULL, /* mmap */
- aztcd_open, /* open */
- aztcd_release, /* release */
- NULL, /* fsync */
- NULL, /* fasync*/
- check_aztcd_media_change, /*media change*/
- NULL /* revalidate*/
-};
/*
* Test for presence of drive and initialize it. Called at boot time.
@@ -1703,432 +1723,482 @@
if ((azt_port==0x1f0)||(azt_port==0x170))
request_region(azt_port, 8, "aztcd"); /*IDE-interface*/
else
- request_region(azt_port, 4, "aztcd"); /*proprietary inferface*/
+ request_region(azt_port, 4, "aztcd"); /*proprietary interface*/
azt_invalidate_buffers();
- aztPresent = 1;
- aztCloseDoor();
-/* printk("aztcd: End Init\n");
-*/ return (0);
-}
-
-
-static void azt_hsg2msf(long hsg, struct msf *msf)
-{ hsg += 150;
- msf -> min = hsg / 4500;
- hsg %= 4500;
- msf -> sec = hsg / 75;
- msf -> frame = hsg % 75;
-#ifdef AZT_DEBUG
- if (msf->min >=70) printk("aztcd: Error hsg2msf address Minutes\n");
- if (msf->sec >=60) printk("aztcd: Error hsg2msf address Seconds\n");
- if (msf->frame>=75) printk("aztcd: Error hsg2msf address Frames\n");
-#endif
- azt_bin2bcd(&msf -> min); /* convert to BCD */
- azt_bin2bcd(&msf -> sec);
- azt_bin2bcd(&msf -> frame);
-}
-
-static long azt_msf2hsg(struct msf *mp)
-{ return azt_bcd2bin(mp -> frame) + azt_bcd2bin(mp -> sec) * 75
- + azt_bcd2bin(mp -> min) * 4500 - CD_BLOCK_OFFSET;
+ aztPresent = 1;
+ aztCloseDoor();
+/* printk("aztcd: End Init\n");
+*/ return (0);
}
-static void azt_bin2bcd(unsigned char *p)
-{ int u, t;
+#ifdef MODULE
- u = *p % 10;
- t = *p / 10;
- *p = u | (t << 4);
+int init_module(void)
+{
+ return aztcd_init();
}
-static int azt_bcd2bin(unsigned char bcd)
-{ return (bcd >> 4) * 10 + (bcd & 0xF);
-}
+void cleanup_module(void)
+{
+ if ((unregister_blkdev(MAJOR_NR, "aztcd") == -EINVAL))
+ { printk("What's that: can't unregister aztcd\n");
+ return;
+ }
+ 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");
+}
+#endif MODULE
-/*
- * 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;
+/*##########################################################################
+ 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;
- if (aztTimeOutCount>=AZT_TIMEOUT)
- { printk("aztcd: aztGetValue timeout\n");
- return -1;
+ azt_error=inb(DATA_PORT)&0xFF;
+ printk("aztcd: I/O error 0x%02x\n", azt_error);
+ azt_invalidate_buffers();
+#ifdef WARN_IF_READ_FAILURE
+ if (AztTries == 5)
+ printk("aztcd: Read of Block %d Failed - Maybe Audio Disk?\n", azt_next_bn);
+#endif
+ if (!AztTries--) {
+ printk("aztcd: Read of Block %d Failed, Maybe Audio Disk? Giving up\n", azt_next_bn);
+ if (azt_transfer_is_active) {
+ AztTries = 0;
+ loop_ctl = 0;
+ }
+ if (CURRENT_VALID)
+ end_request(0);
+ AztTries = 5;
}
- s = inb(DATA_PORT) & 0xFF;
- *result = (unsigned char) s;
- return 0;
-}
-
+ azt_error = 0;
+ azt_state = AZT_S_STOP;
+ }
-/*
- * Read the current Q-channel info. Also used for reading the
- * table of contents.
- */
-int aztGetQChannelInfo(struct azt_Toc *qp)
-{ unsigned char notUsed;
- int st;
+ 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) {
-#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);
+ 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 0;
-}
+ return;
-/*
- * Read the table of contents (TOC) and TOC header if necessary
- */
-static int aztUpdateToc()
-{ int st;
+ 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;
-#ifdef AZT_DEBUG
- printk("aztcd: starting aztUpdateToc Time:%li\n",jiffies);
-#endif
- if (aztTocUpToDate)
- return 0;
+ case AZT_S_MODE:
+#ifdef AZT_TEST3
+ if (azt_state!=azt_state_old) {
+ azt_state_old=azt_state;
+ printk("AZT_S_MODE\n");
+ }
+#endif
+ if (!skip) {
+ if ((st = aztStatus()) != -1) {
+ if ((st & AST_DSK_CHG)||(st & AST_NOT_READY)) {
+ aztDiskChanged = 1;
+ aztTocUpToDate = 0;
+ azt_invalidate_buffers();
+ end_request(0);
+ printk("aztcd: Disk Changed or Not Ready 1 - Unmount Disk!\n");
+ }
+ } else break;
+ }
+ skip = 0;
- if (aztGetDiskInfo() < 0)
- return -EIO;
+ if ((st & AST_DOOR_OPEN)||(st & AST_NOT_READY)) {
+ aztDiskChanged = 1;
+ aztTocUpToDate = 0;
+ printk("aztcd: Disk Changed or Not Ready 2 - Unmount Disk!\n");
+ end_request(0);
+ printk((st & AST_DOOR_OPEN) ? "aztcd: door open\n" : "aztcd: disk removed\n");
+ if (azt_transfer_is_active) {
+ azt_state = AZT_S_START;
+ loop_ctl = 1; /* goto immediately */
+ break;
+ }
+ azt_state = AZT_S_IDLE;
+ while (CURRENT_VALID)
+ end_request(0);
+ return;
+ }
+
+/* if (aztSendCmd(ACMD_SET_MODE)) RETURN("azt_poll 3");
+ outb(0x01, DATA_PORT);
+ PA_OK;
+ STEN_LOW;
+*/ if (aztSendCmd(ACMD_GET_STATUS)) RETURN("azt_poll 4");
+ STEN_LOW;
+ azt_mode = 1;
+ azt_state = AZT_S_READ;
+ AztTimeout = 3000;
- if (aztGetToc(0) < 0)
- return -EIO;
+ break;
- /*audio disk detection
- with my Aztech drive there is no audio status bit, so I use the copy
- protection bit of the first track. If this track is copy protected
- (copy bit = 0), I assume, it's an audio disk. Strange, but works ??? */
- if (!(Toc[DiskInfo.first].ctrl_addr & 0x40))
- DiskInfo.audio=1;
- else
- DiskInfo.audio=0;
- /* XA detection */
- if (! DiskInfo.audio)
- { azt_Play.start.min = 0; /*XA detection only seems to work*/
- azt_Play.start.sec = 2; /*when we play a track*/
- azt_Play.start.frame = 0;
- azt_Play.end.min = 0;
- azt_Play.end.sec = 0;
- azt_Play.end.frame = 1;
- if (sendAztCmd(ACMD_PLAY_READ, &azt_Play)) return -1;
- DTEN_LOW;
- for (st=0;st<CD_FRAMESIZE;st++) inb(DATA_PORT);
- }
- DiskInfo.xa = getAztStatus() & AST_MODE;
- if (DiskInfo.xa)
- { printk("aztcd: XA support experimental - mail results to zimmerma@rz.fht-esslingen.de\n");
- }
-
- /*multisession detection
- support for multisession CDs is done automatically with Aztech drives,
- we don't have to take care about TOC redirection; if we want the isofs
- to take care about redirection, we have to set AZT_MULTISESSION to 1*/
- DiskInfo.multi=0;
-#if AZT_MULTISESSION
- if (DiskInfo.xa)
- { aztGetMultiDiskInfo(); /*here Disk.Info.multi is set*/
- }
+ 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 (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;
- }
+ if (!skip) {
+ if ((st = aztStatus()) != -1) {
+ if ((st & AST_DSK_CHG)||(st & AST_NOT_READY)) {
+ aztDiskChanged = 1;
+ aztTocUpToDate = 0;
+ azt_invalidate_buffers();
+ printk("aztcd: Disk Changed or Not Ready 3 - Unmount Disk!\n");
+ end_request(0);
+ }
+ } else break;
+ }
+
+ skip = 0;
+ if ((st & AST_DOOR_OPEN)||(st & AST_NOT_READY)) {
+ aztDiskChanged = 1;
+ aztTocUpToDate = 0;
+ printk((st & AST_DOOR_OPEN) ? "aztcd: door open\n" : "aztcd: disk removed\n");
+ if (azt_transfer_is_active) {
+ azt_state = AZT_S_START;
+ loop_ctl = 1;
+ break;
+ }
+ azt_state = AZT_S_IDLE;
+ while (CURRENT_VALID)
+ end_request(0);
+ return;
+ }
- aztTocUpToDate = 1;
-#ifdef AZT_DEBUG
- printk("aztcd: exiting aztUpdateToc Time:%li\n",jiffies);
+ 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
- return 0;
-}
+ 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;
-/* Read the table of contents header, i.e. no. of tracks and start of first
- * track
- */
-static int aztGetDiskInfo()
-{ int limit;
- unsigned char test;
- struct azt_Toc qInfo;
-#ifdef AZT_DEBUG
- printk("aztcd: starting aztGetDiskInfo Time:%li\n",jiffies);
-#endif
- if (aztSendCmd(ACMD_SEEK_TO_LEADIN)) RETURNM("aztGetDiskInfo 1",-1);
- STEN_LOW_WAIT;
- test=0;
- for (limit=300;limit>0;limit--)
- { if (aztGetQChannelInfo(&qInfo)<0) RETURNM("aztGetDiskInfo 2",-1);
- if (qInfo.pointIndex==0xA0) /*Number of FirstTrack*/
- { DiskInfo.first = qInfo.diskTime.min;
- DiskInfo.first = azt_bcd2bin(DiskInfo.first);
- test=test|0x01;
- }
- if (qInfo.pointIndex==0xA1) /*Number of LastTrack*/
- { DiskInfo.last = qInfo.diskTime.min;
- DiskInfo.last = azt_bcd2bin(DiskInfo.last);
- test=test|0x02;
- }
- if (qInfo.pointIndex==0xA2) /*DiskLength*/
- { DiskInfo.diskLength.min=qInfo.diskTime.min;
- DiskInfo.diskLength.sec=qInfo.diskTime.sec;
- DiskInfo.diskLength.frame=qInfo.diskTime.frame;
- test=test|0x04;
- }
- if ((qInfo.pointIndex==DiskInfo.first)&&(test&0x01)) /*StartTime of First Track*/
- { DiskInfo.firstTrack.min=qInfo.diskTime.min;
- DiskInfo.firstTrack.sec=qInfo.diskTime.sec;
- DiskInfo.firstTrack.frame=qInfo.diskTime.frame;
- test=test|0x08;
- }
- if (test==0x0F) break;
- }
-#ifdef AZT_DEBUG
- printk ("aztcd: exiting aztGetDiskInfo Time:%li\n",jiffies);
- printk("Disk Info: first %d last %d length %02X:%02X.%02X dez first %02X:%02X.%02X dez\n",
- DiskInfo.first,
- DiskInfo.last,
- DiskInfo.diskLength.min,
- DiskInfo.diskLength.sec,
- DiskInfo.diskLength.frame,
- DiskInfo.firstTrack.min,
- DiskInfo.firstTrack.sec,
- DiskInfo.firstTrack.frame);
+ case AZT_S_DATA:
+#ifdef AZT_TEST3
+ if (azt_state!=azt_state_old) {
+ azt_state_old=azt_state;
+ printk("AZT_S_DATA\n");
+ }
#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;
+ st = inb(STATUS_PORT) & AFL_STATUSorDATA;
-#ifdef AZT_DEBUG
- printk("aztcd: starting aztGetMultiDiskInfo\n");
+ switch (st) {
+
+ case AFL_DATA:
+#ifdef AZT_TEST3
+ if (st!=azt_st_old) {
+ azt_st_old=st;
+ printk("---AFL_DATA st:%x\n",st);
+ }
#endif
+ if (!AztTries--) {
+ printk("aztcd: Read of Block %d Failed, Maybe Audio Disk ? Giving up\n", azt_next_bn);
+ if (azt_transfer_is_active) {
+ AztTries = 0;
+ break;
+ }
+ if (CURRENT_VALID)
+ end_request(0);
+ AztTries = 5;
+ }
+ azt_state = AZT_S_START;
+ AztTimeout = READ_TIMEOUT;
+ loop_ctl = 1;
+ break;
- 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;
+ case AFL_STATUSorDATA:
+#ifdef AZT_TEST3
+ if (st!=azt_st_old) {
+ azt_st_old=st;
+ printk("---AFL_STATUSorDATA st:%x\n",st);
+ }
+#endif
+ break;
- 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);
+ default:
+#ifdef AZT_TEST3
+ if (st!=azt_st_old) {
+ azt_st_old=st;
+ printk("---default: st:%x\n",st);
+ }
#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);
+ AztTries = 5;
+ if (!CURRENT_VALID && azt_buf_in == azt_buf_out) {
+ azt_state = AZT_S_STOP;
+ loop_ctl = 1;
+ break;
+ }
+ if (azt_read_count<=0)
+ printk("aztcd: warning - try to read 0 frames\n");
+ while (azt_read_count) /*??? fast read ahead loop*/
+ { azt_buf_bn[azt_buf_in] = -1;
+ DTEN_LOW; /*??? unsolved problem, very
+ seldom we get timeouts
+ here, don't now the real
+ reason. With my drive this
+ sometimes also happens with
+ Aztech's original driver under
+ DOS. Is it a hardware bug?
+ I tried to recover from such
+ situations here. Zimmermann*/
+ if (aztTimeOutCount>=AZT_TIMEOUT)
+ { printk("read_count:%d CURRENT->nr_sectors:%ld azt_buf_in:%d\n", azt_read_count,CURRENT->nr_sectors,azt_buf_in);
+ printk("azt_transfer_is_active:%x\n",azt_transfer_is_active);
+ azt_read_count=0;
+ azt_state = AZT_S_STOP;
+ loop_ctl = 1;
+ end_request(1); /*should we have here (1) or (0)? */
+ }
+ else
+ { if (azt_read_mode==AZT_MODE_2)
+ { insb(DATA_PORT, azt_buf + CD_FRAMESIZE_RAW * azt_buf_in, CD_FRAMESIZE_RAW);
+ }
+ else
+ { insb(DATA_PORT, azt_buf + CD_FRAMESIZE * azt_buf_in, CD_FRAMESIZE);
+ }
+ azt_read_count--;
+#ifdef AZT_TEST3
+ printk("AZT_S_DATA; ---I've read data- read_count: %d\n",azt_read_count);
+ printk("azt_next_bn:%d azt_buf_in:%d azt_buf_out:%d azt_buf_bn:%d\n", \
+ azt_next_bn, azt_buf_in, azt_buf_out, azt_buf_bn[azt_buf_in]);
#endif
- if (test!=0x0F)
- break;
- else
- DiskInfo.multi=1; /*found TOC of more than one session*/
- aztGetToc(1);
- } while(--k);
+ azt_buf_bn[azt_buf_in] = azt_next_bn++;
+ if (azt_buf_out == -1)
+ azt_buf_out = azt_buf_in;
+ azt_buf_in = azt_buf_in + 1 == AZT_BUF_SIZ ? 0 : azt_buf_in + 1;
+ }
+ }
+ if (!azt_transfer_is_active) {
+ while (CURRENT_VALID) {
+ azt_transfer();
+ if (CURRENT -> nr_sectors == 0)
+ end_request(1);
+ else
+ break;
+ }
+ }
-#ifdef AZT_DEBUG
- printk ("aztcd: exiting aztGetMultiDiskInfo Time:%li\n",jiffies);
-#endif
- return 0;
-}
-#endif
+ 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;
-/*
- * 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);
+ 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 (!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;
- }
+ 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;
-/*Is there a good reason to stop motor before TOC read?
- if (aztSendCmd(ACMD_STOP)) RETURNM("aztGetToc 1",-1);
- STEN_LOW_WAIT;
-*/
+ 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 (!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)
+ if ((st = aztStatus()) == -1 && AztTimeout)
break;
- px = azt_bcd2bin(qInfo.pointIndex);
+ if ((st != -1) && ((st & AST_DSK_CHG)||(st & AST_NOT_READY))) {
+ aztDiskChanged = 1;
+ aztTocUpToDate = 0;
+ azt_invalidate_buffers();
+ printk("aztcd: Disk Changed or Not Ready 4 - Unmount Disk!\n");
+ end_request(0);
+ }
- if (px > 0 && px < MAX_TRACKS && qInfo.track == 0)
- if (Toc[px].pointIndex == 0)
- { Toc[px] = qInfo;
- i--;
- }
- if (i <= 0)
- break;
- }
+#ifdef AZT_TEST3
+ printk("CURRENT_VALID %d azt_mode %d\n",
+ CURRENT_VALID, azt_mode);
+#endif
- Toc[DiskInfo.last + 1].diskTime = DiskInfo.diskLength;
- Toc[DiskInfo.last].trackTime = DiskInfo.diskLength;
+ 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;
-#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);
+ 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);
+}
- return limit > 0 ? 0 : -1;
+static long azt_msf2hsg(struct msf *mp)
+{ return azt_bcd2bin(mp -> frame) + azt_bcd2bin(mp -> sec) * 75
+ + azt_bcd2bin(mp -> min) * 4500 - CD_BLOCK_OFFSET;
}
-#ifdef MODULE
+static void azt_bin2bcd(unsigned char *p)
+{ int u, t;
-int init_module(void)
-{
- return aztcd_init();
+ u = *p % 10;
+ t = *p / 10;
+ *p = u | (t << 4);
}
-void cleanup_module(void)
-{
- if ((unregister_blkdev(MAJOR_NR, "aztcd") == -EINVAL))
- { printk("What's that: can't unregister aztcd\n");
- return;
- }
- 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");
-}
-#endif MODULE
+static int azt_bcd2bin(unsigned char bcd)
+{ return (bcd >> 4) * 10 + (bcd & 0xF);
+}
+
+
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen, slshen@lbl.gov
with Sam's (original) version of this