patch-pre2.0.3 linux/drivers/cdrom/mcdx.c
Next file: linux/drivers/cdrom/sbpcd.c
Previous file: linux/drivers/cdrom/cm206.c
Back to the patch index
Back to the overall index
- Lines: 2936
- Date:
Mon May 13 12:44:08 1996
- Orig file:
pre2.0.2/linux/drivers/cdrom/mcdx.c
- Orig date:
Fri Apr 12 15:51:51 1996
diff -u --recursive --new-file pre2.0.2/linux/drivers/cdrom/mcdx.c linux/drivers/cdrom/mcdx.c
@@ -1,16 +1,7 @@
/*
* The Mitsumi CDROM interface
* Copyright (C) 1995 Heiko Schlittermann <heiko@lotte.sax.de>
- * VERSION: 1.9
- *
- ****************** H E L P *********************************
- * If you ever plan to update your CD ROM drive and perhaps
- * want to sell or simply give away your Mitsumi FX-001[DS]
- * -- Please, Please --
- * mail me (heiko@lotte.sax.de). When my last drive goes
- * ballistic no more driver support will be available from me !!!
- *************************************************************
- *
+ * VERSION: 2.2
*
* 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
@@ -38,14 +29,14 @@
* Nils Faerber and Roger E. Wolff (extensively tested the LU portion)
* Andreas Kies (testing the mysterious hang up's)
* ... somebody forgotten?
- *
+ *
+ * 2.1 1996/04/29 Marcin Dalecki <dalecki@namu03.gwdg.de>
+ * Far too many bugfixes/changes to mention them all separately.
+ * 2.2 1996/05/06 Marcin Dalecki <dalecki@namu03.gwdg.de>
+ * Mostly fixes to some silly bugs in the previous release :-).
+ * (Hi Michael Thimm! Thank's for lending me Your's double speed drive.)
*/
-
-
-#if RCS
-static const char *mcdx_c_version
- = "mcdx.c,v 1.2 1996/03/22 01:14:59 heiko Exp";
-#endif
+#define VERSION "2.2"
#include <linux/version.h>
#include <linux/module.h>
@@ -63,202 +54,152 @@
#include <asm/io.h>
#include <asm/segment.h>
-
#include <linux/major.h>
#define MAJOR_NR MITSUMI_X_CDROM_MAJOR
#include <linux/blk.h>
-/* for compatible parameter passing with "insmod" */
-#define mcdx_drive_map mcdx
+/*
+ * for compatible parameter passing with "insmod"
+ */
+#define mcdx_drive_map mcdx
#include <linux/mcdx.h>
-#ifndef HZ
-#error HZ not defined
-#endif
-
-/* CONSTANTS *******************************************************/
+#define REQUEST_SIZE 200
+#define DIRECT_SIZE 200
-const int REQUEST_SIZE = 200;
-const int DIRECT_SIZE = 200;
-const unsigned long ACLOSE_INHIBIT = 800; /* 1/100 s of autoclose inhibit */
-
-enum drivemodes { TOC, DATA, RAW, COOKED };
-enum datamodes { MODE0, MODE1, MODE2 };
-enum resetmodes { SOFT, HARD };
-
-const int SINGLE = 0x01; /* single speed drive (FX001S, LU) */
-const int DOUBLE = 0x02; /* double speed drive (FX001D, ..? */
-const int DOOR = 0x04; /* door locking capability */
-const int MULTI = 0x08; /* multi session capability */
-
-const unsigned char READ1X = 0xc0;
-const unsigned char READ2X = 0xc1;
-
-
-/* DECLARATIONS ****************************************************/
-struct s_msf {
- unsigned char minute;
- unsigned char second;
- unsigned char frame;
+enum drivemodes {
+ TOC, DATA, RAW, COOKED
};
+#define MODE0 0x00
+#define MODE1 0x01
+#define MODE2 0x02
+
+#define DOOR_LOCK 0x01
+#define DOOR_UNLOCK 0x00
+
+/*
+ * Structs used to gather info reported by the drive.
+ */
+
struct s_subqcode {
- unsigned char control;
- unsigned char tno;
- unsigned char index;
- struct s_msf tt;
- struct s_msf dt;
+ u_char adr:4;
+ u_char ctrl:4;
+ u_char tno;
+ u_char index;
+ struct cdrom_msf0 tt;
+ u_char dummy; /* padding for matching the returned struct */
+ struct cdrom_msf0 dt;
};
-struct s_diskinfo {
- unsigned int n_first;
- unsigned int n_last;
- struct s_msf msf_leadout;
- struct s_msf msf_first;
-};
-
struct s_multi {
unsigned char multi;
- struct s_msf msf_last;
+ struct cdrom_msf0 msf_last;
};
-struct s_version {
- unsigned char code;
- unsigned char ver;
+struct s_play {
+ struct cdrom_msf0 start;
+ struct cdrom_msf0 stop;
};
-/* Per drive/controller stuff **************************************/
+/*
+ * Per drive/controller stuff.
+ */
struct s_drive_stuff {
- /* waitqueues */
- struct wait_queue *busyq;
- struct wait_queue *lockq;
- struct wait_queue *sleepq;
-
- /* flags */
- volatile int introk; /* status of last irq operation */
- volatile int busy; /* drive performs an operation */
- volatile int lock; /* exclusive usage */
- int eject_sw; /* 1 - eject on last close (default 0) */
- int autoclose; /* 1 - close the door on open (default 1) */
-
+ struct wait_queue *busyq;
+
+ /* flags */
+ u_char introk:1; /* status of last irq operation */
+ u_char busy:1; /* drive performs an operation */
+ u_char eject_sw:1; /* 1 - eject on last close (default 0) */
+ u_char autoclose:1; /* 1 - close the door on open (default 1) */
+ u_char xxx:1; /* set if changed, reset while open */
+ u_char xa:1; /* 1 if xa disk */
+ u_char audio:1; /* 1 if audio disk */
+ u_char eom:1; /* end of media reached during read request */
+
+ /* drives capabilities */
+ u_char door:1; /* can close/lock tray */
+ u_char multi_cap:1; /* multisession capable */
+ u_char double_speed:1; /* double speed drive */
+
/* cd infos */
- struct s_diskinfo di;
+ unsigned int n_first;
+ unsigned int n_last;
+ struct cdrom_msf0 msf_leadout;
struct s_multi multi;
- struct s_subqcode* toc; /* first entry of the toc array */
- struct s_subqcode start;
- struct s_subqcode stop;
- int xa; /* 1 if xa disk */
- int audio; /* 1 if audio disk */
- int audiostatus;
+
+ struct s_subqcode *toc; /* first entry of the toc array */
+ struct s_play resume; /* where to resume after pause */
+
+ int audiostatus;
/* `buffer' control */
- volatile int valid;
- volatile int pending;
- volatile int off_direct;
- volatile int off_requested;
-
- /* adds and odds */
- void* wreg_data; /* w data */
- void* wreg_reset; /* w hardware reset */
- void* wreg_hcon; /* w hardware conf */
- void* wreg_chn; /* w channel */
- void* rreg_data; /* r data */
- void* rreg_status; /* r status */
-
- int irq; /* irq used by this drive */
- int minor; /* minor number of this drive */
- int present; /* drive present and its capabilities */
- unsigned char readcmd; /* read cmd depends on single/double speed */
- unsigned char playcmd; /* play should always be single speed */
- unsigned int xxx; /* set if changed, reset while open */
- unsigned int yyy; /* set if changed, reset by media_changed */
- unsigned long ejected; /* time we called the eject function */
- int users; /* keeps track of open/close */
- int lastsector; /* last block accessible */
- int status; /* last operation's error / status */
- int readerrs; /* # of blocks read w/o error */
+ unsigned int valid:1;
+ int pending;
+ int off_direct;
+ int off_requested;
+
+ int irq; /* irq used by this drive */
+ unsigned int base; /* base for all registers of the drive */
+ int users; /* keeps track of open/close */
+ int lastsector; /* last accessible blocks */
};
+/*
+ * Macros for accessing interface registers
+ */
-/* Prototypes ******************************************************/
-
-/* The following prototypes are already declared elsewhere. They are
- repeated here to show what's going on. And to sense, if they're
- changed elsewhere. */
+#define DATA_REG (stuffp->base)
+#define RESET_REG (stuffp->base+1)
+#define STAT_REG (stuffp->base+1)
+#define CHAN_REG (stuffp->base+3)
-/* declared in blk.h */
+/*
+ * declared in blk.h
+ */
int mcdx_init(void);
void do_mcdx_request(void);
-int check_mcdx_media_change(kdev_t);
-/* already declared in init/main */
+/*
+ * already declared in init/main
+ */
void mcdx_setup(char *, int *);
-/* Indirect exported functions. These functions are exported by their
- addresses, such as mcdx_open and mcdx_close in the
- structure fops. */
-
-/* ??? exported by the mcdx_sigaction struct */
-static void mcdx_intr(int, void *, struct pt_regs*);
-
-/* exported by file_ops */
-static int mcdx_open(struct inode*, struct file*);
-static void mcdx_close(struct inode*, struct file*);
-static int mcdx_ioctl(struct inode*, struct file*, unsigned int, unsigned long);
-
-/* misc internal support functions */
-static void log2msf(unsigned int, struct s_msf*);
-static unsigned int msf2log(const struct s_msf*);
-static unsigned int uint2bcd(unsigned int);
-static unsigned int bcd2uint(unsigned char);
-#if MCDX_DEBUG
-static void TRACE((int level, const char* fmt, ...));
-#endif
-static void warn(const char* fmt, ...);
-static char *port(int*);
-static int irq(int*);
-static void mcdx_delay(struct s_drive_stuff*, long jifs);
-static int mcdx_transfer(struct s_drive_stuff*, char* buf, int sector, int nr_sectors);
-static int mcdx_xfer(struct s_drive_stuff*, char* buf, int sector, int nr_sectors);
-
-static int mcdx_config(struct s_drive_stuff*, int);
-static int mcdx_closedoor(struct s_drive_stuff*, int);
-static int mcdx_requestversion(struct s_drive_stuff*, struct s_version*, int);
-static int mcdx_lockdoor(struct s_drive_stuff*, int, int);
-static int mcdx_stop(struct s_drive_stuff*, int);
-static int mcdx_hold(struct s_drive_stuff*, int);
-static int mcdx_reset(struct s_drive_stuff*, enum resetmodes, int);
-static int mcdx_eject(struct s_drive_stuff*, int);
-static int mcdx_setdrivemode(struct s_drive_stuff*, enum drivemodes, int);
-static int mcdx_setdatamode(struct s_drive_stuff*, enum datamodes, int);
-static int mcdx_requestsubqcode(struct s_drive_stuff*, struct s_subqcode*, int);
-static int mcdx_requestmultidiskinfo(struct s_drive_stuff*, struct s_multi*, int);
-static int mcdx_requesttocdata(struct s_drive_stuff*, struct s_diskinfo*, int);
-static int mcdx_getstatus(struct s_drive_stuff*, int);
-static int mcdx_getval(struct s_drive_stuff*, int to, int delay, char*);
-static int mcdx_talk(struct s_drive_stuff*,
- const unsigned char* cmd, size_t,
- void *buffer, size_t size,
- unsigned int timeout, int);
-static int mcdx_readtoc(struct s_drive_stuff*);
-static int mcdx_playtrk(struct s_drive_stuff*, const struct cdrom_ti*);
-static int mcdx_playmsf(struct s_drive_stuff*, const struct cdrom_msf*);
-static int mcdx_setattentuator(struct s_drive_stuff*, struct cdrom_volctrl*, int);
+/*
+ * Indirect exported functions. These functions are exported by their
+ * addresses, such as mcdx_open and mcdx_close in the
+ * structure fops.
+ */
+
+/*
+ * ??? exported by the mcdx_sigaction struct
+ */
+static void mcdx_intr(int, void *, struct pt_regs *);
+
+/*
+ * exported by file_ops
+ */
+static int mcdx_open(struct inode *, struct file *);
+static void mcdx_close(struct inode *, struct file *);
+static int mcdx_ioctl(struct inode *, struct file *,
+ unsigned int, unsigned long);
+static int mcdx_media_change(kdev_t);
-/* static variables ************************************************/
static int mcdx_blocksizes[MCDX_NDRIVES];
static int mcdx_drive_map[][2] = MCDX_DRIVEMAP;
-static struct s_drive_stuff* mcdx_stuffp[MCDX_NDRIVES];
-static struct s_drive_stuff* mcdx_irq_map[16] =
- {0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0};
+static struct s_drive_stuff *mcdx_stuffp[MCDX_NDRIVES];
+static struct s_drive_stuff *mcdx_irq_map[16] =
+{0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0};
-static struct file_operations mcdx_fops = {
+static struct file_operations mcdx_fops =
+{
NULL, /* lseek - use kernel default */
block_read, /* read - general block-dev read */
- block_write, /* write - general block-dev write */
+ block_write, /* write - general block-dev write */
NULL, /* no readdir */
NULL, /* no select */
mcdx_ioctl, /* ioctl() */
@@ -266,1591 +207,1191 @@
mcdx_open, /* open() */
mcdx_close, /* close() */
NULL, /* fsync */
- NULL, /* fasync */
- check_mcdx_media_change, /* media_change */
- NULL /* revalidate */
+ NULL, /* fasync */
+ mcdx_media_change, /* media_change */
+ NULL /* revalidate */
};
-/* KERNEL INTERFACE FUNCTIONS **************************************/
+/*
+ * Misc number converters
+ */
-static int
-mcdx_ioctl(
- struct inode* ip, struct file* fp,
- unsigned int cmd, unsigned long arg)
-{
- struct s_drive_stuff *stuffp = mcdx_stuffp[MINOR(ip->i_rdev)];
+static unsigned int bcd2uint(unsigned char c)
+{
+ return (c >> 4) * 10 + (c & 0x0f);
+}
- if (!stuffp->present) return -ENXIO;
- if (!ip) return -EINVAL;
+static unsigned int uint2bcd(unsigned int ival)
+{
+ return ((ival / 10) << 4) | (ival % 10);
+}
- switch (cmd) {
- case CDROMSTART: {
- TRACE((IOCTL, "ioctl() START\n"));
- return 0;
- }
+static unsigned int msf2log(const struct cdrom_msf0 *pmsf)
+{
+ return bcd2uint(pmsf->frame)
+ + bcd2uint(pmsf->second) * 75
+ + bcd2uint(pmsf->minute) * 4500
+ - CD_BLOCK_OFFSET;
+}
- case CDROMSTOP: {
- TRACE((IOCTL, "ioctl() STOP\n"));
- stuffp->audiostatus = CDROM_AUDIO_INVALID;
- if (-1 == mcdx_stop(stuffp, 1))
- return -EIO;
- return 0;
- }
+/*
+ * Access to elements of the mcdx_drive_map members
+ */
+static inline unsigned int port(int *ip)
+{
+ return (unsigned int) ip[0];
+}
- case CDROMPLAYTRKIND: {
- int ans;
- struct cdrom_ti ti;
+static inline int irq(int *ip)
+{
+ return ip[1];
+}
- TRACE((IOCTL, "ioctl() PLAYTRKIND\n"));
- if ((ans = verify_area(VERIFY_READ, (void*) arg, sizeof(ti))))
- return ans;
- memcpy_fromfs(&ti, (void*) arg, sizeof(ti));
- if ((ti.cdti_trk0 < stuffp->di.n_first)
- || (ti.cdti_trk0 > stuffp->di.n_last)
- || (ti.cdti_trk1 < stuffp->di.n_first))
- return -EINVAL;
- if (ti.cdti_trk1 > stuffp->di.n_last) ti.cdti_trk1 = stuffp->di.n_last;
- TRACE((PLAYTRK, "ioctl() track %d to %d\n", ti.cdti_trk0, ti.cdti_trk1));
-
- return mcdx_playtrk(stuffp, &ti);
- }
-
- case CDROMPLAYMSF: {
- int ans;
- struct cdrom_msf msf;
-
- TRACE((IOCTL, "ioctl() PLAYMSF\n"));
-
- if ((stuffp->audiostatus == CDROM_AUDIO_PLAY)
- && (-1 == mcdx_hold(stuffp, 1))) return -EIO;
-
- if ((ans = verify_area(
- VERIFY_READ, (void*) arg, sizeof(struct cdrom_msf))))
- return ans;
-
- memcpy_fromfs(&msf, (void*) arg, sizeof msf);
-
- msf.cdmsf_min0 = uint2bcd(msf.cdmsf_min0);
- msf.cdmsf_sec0 = uint2bcd(msf.cdmsf_sec0);
- msf.cdmsf_frame0 = uint2bcd(msf.cdmsf_frame0);
-
- msf.cdmsf_min1 = uint2bcd(msf.cdmsf_min1);
- msf.cdmsf_sec1 = uint2bcd(msf.cdmsf_sec1);
- msf.cdmsf_frame1 = uint2bcd(msf.cdmsf_frame1);
-
- return mcdx_playmsf(stuffp, &msf);
- }
-
- case CDROMRESUME: {
- TRACE((IOCTL, "ioctl() RESUME\n"));
- return mcdx_playtrk(stuffp, NULL);
- }
-
- case CDROMREADTOCENTRY: {
- struct cdrom_tocentry entry;
- struct s_subqcode *tp = NULL;
- int ans;
- TRACE((IOCTL, "ioctl() READTOCENTRY\n"));
+/*
+ * Low level hardware related functions.
+ */
+
+/*
+ * Return drives status in case of success, -1 otherwise.
+ *
+ * First we try to get the status information quickly.
+ * Then we sleep repeatedly for about 10 usecs, befor we finally reach the
+ * timeout. For this reason this command must be called with the drive beeing
+ * locked!
+ */
+static int get_status(struct s_drive_stuff *stuffp,
+ unsigned long timeout)
+{
+ unsigned long bang = jiffies + 2;
+ timeout += jiffies;
- if (-1 == mcdx_readtoc(stuffp)) return -1;
+ do {
+ if (!(inb(STAT_REG) & MCDX_RBIT_STEN)) {
+ return (inb(DATA_REG) & 0xff);
+ }
+ } while (jiffies < bang);
- if ((ans = verify_area(VERIFY_READ, (void *) arg, sizeof(entry)))) return ans;
- memcpy_fromfs(&entry, (void *) arg, sizeof(entry));
+ while (inb(STAT_REG) & MCDX_RBIT_STEN) {
+ if (jiffies > timeout)
+ return -1;
+ current->state = TASK_INTERRUPTIBLE;
+ current->timeout = jiffies + HZ / 2;
+ schedule();
+ }
+ return (inb(DATA_REG) & 0xff);
+}
- if (entry.cdte_track == CDROM_LEADOUT)
- tp = &stuffp->toc[stuffp->di.n_last - stuffp->di.n_first + 1];
- else if (entry.cdte_track > stuffp->di.n_last
- || entry.cdte_track < stuffp->di.n_first) return -EINVAL;
- else tp = &stuffp->toc[entry.cdte_track - stuffp->di.n_first];
-
- if (NULL == tp) WARN(("FATAL.\n"));
-
- entry.cdte_adr = tp->control;
- entry.cdte_ctrl = tp->control >> 4;
-
- if (entry.cdte_format == CDROM_MSF) {
- entry.cdte_addr.msf.minute = bcd2uint(tp->dt.minute);
- entry.cdte_addr.msf.second = bcd2uint(tp->dt.second);
- entry.cdte_addr.msf.frame = bcd2uint(tp->dt.frame);
- } else if (entry.cdte_format == CDROM_LBA)
- entry.cdte_addr.lba = msf2log(&tp->dt);
- else return -EINVAL;
+/* Send a command to the drive, wait for the result.
+ * returns -1 on timeout, drive status otherwise.
+ * If buffer is not zero, the result (length size) is stored there.
+ * If buffer is zero the size should be the number of bytes to read
+ * from the drive. These bytes are discarded.
+ */
+static int talk(struct s_drive_stuff *stuffp,
+ const unsigned char command,
+ void *pars, size_t parslen,
+ void *buffer, size_t size,
+ unsigned int timeout)
+{
+ int st;
- if ((ans = verify_area(VERIFY_WRITE, (void*) arg, sizeof(entry)))) return ans;
- memcpy_tofs((void*) arg, &entry, sizeof(entry));
+ while (stuffp->busy) {
+ interruptible_sleep_on(&stuffp->busyq);
+ }
+ stuffp->busy = 1;
+ stuffp->valid = 0;
+ outb(command, DATA_REG);
+ if (parslen)
+ outsb(DATA_REG, pars, parslen);
- return 0;
+ if (-1 == (st = get_status(stuffp, timeout))) {
+ goto end_talk;
+ }
+ if (st & MCDX_RBIT_CMDERR) {
+ printk(KERN_ERR MCDX ": error in command 0x%2x\n", command);
+ st = -1;
+ goto end_talk;
+ }
+ /* audio status? */
+ if (stuffp->audiostatus == CDROM_AUDIO_INVALID) {
+ stuffp->audiostatus =
+ (st & MCDX_RBIT_AUDIOBS) ? CDROM_AUDIO_PLAY : CDROM_AUDIO_NO_STATUS;
+ } else if (stuffp->audiostatus == CDROM_AUDIO_PLAY
+ && !(st & MCDX_RBIT_AUDIOBS)) {
+ stuffp->audiostatus = CDROM_AUDIO_COMPLETED;
+ }
+ /* media change? */
+ if (st & MCDX_RBIT_CHANGED) {
+ stuffp->xxx = 1;
+ if (stuffp->toc) {
+ kfree(stuffp->toc);
+ stuffp->toc = 0;
+ }
+ }
+ /* now actually get the data */
+ while (size--) {
+ if (-1 == (st = get_status(stuffp, timeout))) {
+ break;
}
+ *((char *) buffer) = st;
+ buffer++;
+ }
- case CDROMSUBCHNL: {
- int ans;
- struct cdrom_subchnl sub;
- struct s_subqcode q;
+ end_talk:
+ stuffp->busy = 0;
+ wake_up_interruptible(&stuffp->busyq);
- TRACE((IOCTL, "ioctl() SUBCHNL\n"));
+ return st;
+}
- if ((ans = verify_area(VERIFY_READ,
- (void*) arg, sizeof(sub)))) return ans;
+static int issue_command(struct s_drive_stuff *stuffp,
+ unsigned char command,
+ unsigned int timeout)
+{
+ return talk(stuffp, command, 0, 0, NULL, 0, timeout);
+}
- memcpy_fromfs(&sub, (void*) arg, sizeof(sub));
-
- if (-1 == mcdx_requestsubqcode(stuffp, &q, 2)) return -EIO;
-
- TRACE((SUBCHNL, "audiostatus: %x\n", stuffp->audiostatus));
- sub.cdsc_audiostatus = stuffp->audiostatus;
- sub.cdsc_adr = q.control;
- sub.cdsc_ctrl = q.control >> 4;
- sub.cdsc_trk = bcd2uint(q.tno);
- sub.cdsc_ind = bcd2uint(q.index);
-
- TRACE((SUBCHNL, "trk %d, ind %d\n",
- sub.cdsc_trk, sub.cdsc_ind));
-
- if (sub.cdsc_format == CDROM_LBA) {
- sub.cdsc_absaddr.lba = msf2log(&q.dt);
- sub.cdsc_reladdr.lba = msf2log(&q.tt);
- TRACE((SUBCHNL, "lba: abs %d, rel %d\n",
- sub.cdsc_absaddr.lba,
- sub.cdsc_reladdr.lba));
- } else if (sub.cdsc_format == CDROM_MSF) {
- sub.cdsc_absaddr.msf.minute = bcd2uint(q.dt.minute);
- sub.cdsc_absaddr.msf.second = bcd2uint(q.dt.second);
- sub.cdsc_absaddr.msf.frame = bcd2uint(q.dt.frame);
- sub.cdsc_reladdr.msf.minute = bcd2uint(q.tt.minute);
- sub.cdsc_reladdr.msf.second = bcd2uint(q.tt.second);
- sub.cdsc_reladdr.msf.frame = bcd2uint(q.tt.frame);
- TRACE((SUBCHNL,
- "msf: abs %02d:%02d:%02d, rel %02d:%02d:%02d\n",
- sub.cdsc_absaddr.msf.minute,
- sub.cdsc_absaddr.msf.second,
- sub.cdsc_absaddr.msf.frame,
- sub.cdsc_reladdr.msf.minute,
- sub.cdsc_reladdr.msf.second,
- sub.cdsc_reladdr.msf.frame));
- } else return -EINVAL;
-
- if ((ans = verify_area(VERIFY_WRITE, (void*) arg, sizeof(sub))))
- return ans;
- memcpy_tofs((void*) arg, &sub, sizeof(sub));
+static inline int set_command(struct s_drive_stuff *stuffp,
+ const unsigned char command,
+ void *pars, size_t parlen,
+ unsigned int timeout)
+{
+ return talk(stuffp, command, pars, parlen, NULL, 0, timeout);
+}
- return 0;
- }
+static inline int get_command(struct s_drive_stuff *stuffp,
+ const unsigned char command,
+ void *buffer, size_t size,
+ unsigned int timeout)
+{
+ return talk(stuffp, command, NULL, 0, buffer, size, timeout);
+}
- case CDROMREADTOCHDR: {
- struct cdrom_tochdr toc;
- int ans;
+static int request_subq_code(struct s_drive_stuff *stuffp,
+ struct s_subqcode *sub)
+{
+ return get_command(stuffp, MCDX_CMD_GET_SUBQ_CODE,
+ sub, sizeof(struct s_subqcode), 2 * HZ);
+}
- TRACE((IOCTL, "ioctl() READTOCHDR\n"));
- if ((ans = verify_area(VERIFY_WRITE, (void*) arg, sizeof toc)))
- return ans;
- toc.cdth_trk0 = stuffp->di.n_first;
- toc.cdth_trk1 = stuffp->di.n_last;
- memcpy_tofs((void*) arg, &toc, sizeof toc);
- TRACE((TOCHDR, "ioctl() track0 = %d, track1 = %d\n",
- stuffp->di.n_first, stuffp->di.n_last));
- return 0;
- }
+static int request_toc_data(struct s_drive_stuff *stuffp)
+{
+ char buf[8];
+ int ans;
- case CDROMPAUSE: {
- TRACE((IOCTL, "ioctl() PAUSE\n"));
- if (stuffp->audiostatus != CDROM_AUDIO_PLAY) return -EINVAL;
- if (-1 == mcdx_stop(stuffp, 1)) return -EIO;
- stuffp->audiostatus = CDROM_AUDIO_PAUSED;
- if (-1 == mcdx_requestsubqcode(stuffp, &stuffp->start, 1))
- return -EIO;
- return 0;
- }
+ ans = get_command(stuffp, MCDX_CMD_GET_TOC, buf, sizeof(buf), 2 * HZ);
+ if (ans == -1) {
+ stuffp->n_first = 0;
+ stuffp->n_last = 0;
+ } else {
+ stuffp->n_first = bcd2uint(buf[0]);
+ stuffp->n_last = bcd2uint(buf[1]);
+ memcpy(&(stuffp->msf_leadout), buf + 2, 3);
+ }
+ return ans;
+}
- case CDROMMULTISESSION: {
- int ans;
- struct cdrom_multisession ms;
- TRACE((IOCTL, "ioctl() MULTISESSION\n"));
- if (0 != (ans = verify_area(VERIFY_READ, (void*) arg,
- sizeof(struct cdrom_multisession))))
- return ans;
-
- memcpy_fromfs(&ms, (void*) arg, sizeof(struct cdrom_multisession));
- if (ms.addr_format == CDROM_MSF) {
- ms.addr.msf.minute = bcd2uint(stuffp->multi.msf_last.minute);
- ms.addr.msf.second = bcd2uint(stuffp->multi.msf_last.second);
- ms.addr.msf.frame = bcd2uint(stuffp->multi.msf_last.frame);
- } else if (ms.addr_format == CDROM_LBA)
- ms.addr.lba = msf2log(&stuffp->multi.msf_last);
- else
- return -EINVAL;
- ms.xa_flag = !!stuffp->multi.multi;
-
- if (0 != (ans = verify_area(VERIFY_WRITE, (void*) arg,
- sizeof(struct cdrom_multisession))))
- return ans;
-
- memcpy_tofs((void*) arg, &ms, sizeof(struct cdrom_multisession));
- if (ms.addr_format == CDROM_MSF)
- TRACE((MS,
- "ioctl() (%d, %02x:%02x.%02x [%02x:%02x.%02x])\n",
- ms.xa_flag,
- ms.addr.msf.minute,
- ms.addr.msf.second,
- ms.addr.msf.frame,
- stuffp->multi.msf_last.minute,
- stuffp->multi.msf_last.second,
- stuffp->multi.msf_last.frame));
- else
- {
- TRACE((MS,
- "ioctl() (%d, 0x%08x [%02x:%02x.%02x])\n",
- ms.xa_flag,
- ms.addr.lba,
- stuffp->multi.msf_last.minute,
- stuffp->multi.msf_last.second,
- stuffp->multi.msf_last.frame));
- }
- return 0;
- }
+static int set_drive_mode(struct s_drive_stuff *stuffp, enum drivemodes mode)
+{
+ char value;
+ if (-1 == get_command(stuffp, MCDX_CMD_GET_DRIVE_MODE,
+ &value, 1, 5 * HZ))
+ return -1;
+ switch (mode) {
+ case TOC:
+ value |= 0x04;
+ break;
+ case DATA:
+ value &= ~0x04;
+ break;
+ case RAW:
+ value |= 0x40;
+ break;
+ case COOKED:
+ value &= ~0x40;
+ break;
+ default:
+ break;
+ }
+ return set_command(stuffp, MCDX_CMD_SET_DRIVE_MODE, &value, 1, 5 * HZ);
+}
- case CDROMEJECT: {
- TRACE((IOCTL, "ioctl() EJECT\n"));
- if (stuffp->users > 1) return -EBUSY;
- if (-1 == mcdx_eject(stuffp, 1)) return -EIO;
- return 0;
- }
+static int config_drive(struct s_drive_stuff *stuffp)
+{
+ unsigned char buf[2];
+ buf[0] = 0x10; /* irq enable */
+ buf[1] = 0x05; /* pre, err irq enable */
- case CDROMEJECT_SW: {
- stuffp->eject_sw = arg;
- return 0;
- }
-
- case CDROMVOLCTRL: {
- int ans;
- struct cdrom_volctrl volctrl;
-
- TRACE((IOCTL, "ioctl() VOLCTRL\n"));
- if ((ans = verify_area(
- VERIFY_READ,
- (void*) arg,
- sizeof(volctrl))))
- return ans;
-
- memcpy_fromfs(&volctrl, (char *) arg, sizeof(volctrl));
- return mcdx_setattentuator(stuffp, &volctrl, 1);
- }
+ if (-1 == set_command(stuffp, MCDX_CMD_CONFIG, buf,
+ sizeof(buf), 1 * HZ))
+ return -1;
- default:
- WARN(("ioctl(): unknown request 0x%04x\n", cmd));
- return -EINVAL;
- }
+ buf[0] = 0x02; /* dma select */
+ buf[1] = 0x00; /* no dma */
+
+ return set_command(stuffp, MCDX_CMD_CONFIG, buf, sizeof(buf), 1 * HZ);
}
-void do_mcdx_request()
+/*
+ * Read the toc entries from the CD.
+ * Return: -1 on failure, else 0
+ */
+int read_toc(struct s_drive_stuff *stuffp)
{
- int dev;
- struct s_drive_stuff *stuffp;
+ int trk;
+ int retries;
+
+ if (stuffp->toc)
+ return 0;
+ if (-1 == issue_command(stuffp, MCDX_CMD_HOLD, 2 * HZ))
+ return -1;
+ if (-1 == set_drive_mode(stuffp, TOC))
+ return -EIO;
- again:
+ /* all seems to be ok so far ... malloc */
+ stuffp->toc = kmalloc(sizeof(struct s_subqcode) *
+ (stuffp->n_last - stuffp->n_first + 2), GFP_KERNEL);
+ if (!stuffp->toc) {
+ printk(KERN_ERR MCDX ": malloc for toc failed\n");
+ set_drive_mode(stuffp, DATA);
+ return -EIO;
+ }
+ /* now read actually the index tarcks */
+ for (trk = 0;
+ trk < (stuffp->n_last - stuffp->n_first + 1);
+ trk++)
+ stuffp->toc[trk].index = 0;
+
+ for (retries = 300; retries; retries--) { /* why 300? */
+ struct s_subqcode q;
+ unsigned int idx;
- TRACE((REQUEST, "do_request()\n"));
+ if (-1 == request_subq_code(stuffp, &q)) {
+ set_drive_mode(stuffp, DATA);
+ return -EIO;
+ }
+ idx = bcd2uint(q.index);
- if ((CURRENT == NULL) || (CURRENT->rq_status == RQ_INACTIVE)) {
- TRACE((REQUEST, "do_request() done\n"));
- return;
+ if ((idx > 0)
+ && (idx <= stuffp->n_last)
+ && (q.tno == 0)
+ && (stuffp->toc[idx - stuffp->n_first].index == 0)) {
+ stuffp->toc[idx - stuffp->n_first] = q;
+ trk--;
+ }
+ if (trk == 0)
+ break;
}
+ memset(&stuffp->toc[stuffp->n_last - stuffp->n_first + 1],
+ 0, sizeof(stuffp->toc[0]));
+ stuffp->toc[stuffp->n_last - stuffp->n_first + 1].dt
+ = stuffp->msf_leadout;
- stuffp = mcdx_stuffp[MINOR(CURRENT->rq_dev)];
- TRACE((REQUEST, "do_request() stuffp = %p\n", stuffp));
+ /* unset toc mode */
+ if (-1 == set_drive_mode(stuffp, DATA))
+ return -EIO;
- INIT_REQUEST;
- dev = MINOR(CURRENT->rq_dev);
+ return 0;
+}
- if ((dev < 0) || (dev >= MCDX_NDRIVES) || (!stuffp->present)) {
- WARN(("do_request(): bad device: %s\n",
- kdevname(CURRENT->rq_dev)));
- end_request(0);
- goto again;
- }
+/*
+ * Return 0 on success, error value -1 otherwise.
+ */
+static int play_track(struct s_drive_stuff *stuffp, const struct cdrom_ti *ti)
+{
+ struct s_play times;
- if (stuffp->audio) {
- WARN(("do_request() attempt to read from audio cd\n"));
- end_request(0);
- goto again;
+ if (ti) {
+ if (-1 == read_toc(stuffp)) {
+ stuffp->audiostatus = CDROM_AUDIO_ERROR;
+ return -EIO;
+ }
+ times.start = stuffp->toc[ti->cdti_trk0 - stuffp->n_first].dt;
+ times.stop = stuffp->resume.stop =
+ stuffp->toc[ti->cdti_trk1 - stuffp->n_first + 1].dt;
+ } else {
+ times = stuffp->resume;
}
+ if (-1 == set_command(stuffp, MCDX_CMD_PLAY,
+ ×, sizeof(times), 5 * HZ)) {
+ printk(KERN_WARNING MCDX ": play track timeout\n");
+ stuffp->audiostatus = CDROM_AUDIO_ERROR;
+ return -EIO;
+ }
+ stuffp->audiostatus = CDROM_AUDIO_PLAY;
- switch (CURRENT->cmd) {
- case WRITE:
- WARN(("do_request(): attempt to write to cd!!\n"));
- end_request(0);
- break;
-
- case READ:
- stuffp->status = 0;
- while (CURRENT->nr_sectors) {
- int i;
-
- if (-1 == (i = mcdx_transfer(
- stuffp,
- CURRENT->buffer,
- CURRENT->sector,
- CURRENT->nr_sectors))) {
- /*INFO(("do_request() read error\n"));*/
- xwarn("do_request() read error\n");
- if (stuffp->status & MCDX_ST_EOM) {
- CURRENT->sector += CURRENT->nr_sectors;
- CURRENT->nr_sectors = 0;
- }
- invalidate_buffers(CURRENT->rq_dev);
- end_request(0);
- goto again;
- }
- CURRENT->sector += i;
- CURRENT->nr_sectors -= i;
- CURRENT->buffer += (i * 512);
-
- }
-
- end_request(1);
- break;
-
- default:
- panic(MCDX "do_request: unknown command.\n");
- break;
- }
-
- goto again;
-}
-
-static int
-mcdx_open(struct inode *ip, struct file *fp)
-/* actions done on open:
- * 1) get the drives status */
-{
- struct s_drive_stuff *stuffp;
-
- TRACE((OPENCLOSE, "open()\n"));
- stuffp = mcdx_stuffp[MINOR(ip->i_rdev)];
- if (!stuffp->present) return -ENXIO;
+ return 0;
+}
- /* this is only done to test if the drive talks with us */
- if (-1 == mcdx_getstatus(stuffp, 1)) return -EIO;
+static int lock_door(struct s_drive_stuff *stuffp, u_char lock)
+{
+ if (stuffp->door)
+ return set_command(stuffp, MCDX_CMD_LOCK_DOOR,
+ &lock, sizeof(lock), 5 * HZ);
+ return 0;
+} /*
+ * KERNEL INTERFACE FUNCTIONS
+ */
+static int mcdx_ioctl(struct inode *ip, struct file *fp,
+ unsigned int command, unsigned long arg)
+{
+ int ans;
+ struct cdrom_ti ti;
+ struct cdrom_msf msf;
+ struct cdrom_tocentry entry;
+ struct s_subqcode *tp = NULL;
+ struct cdrom_subchnl sub;
+ struct s_subqcode q;
+ struct cdrom_tochdr toc;
+ struct cdrom_multisession ms;
+ struct cdrom_volctrl volctrl;
+ struct s_drive_stuff *stuffp = mcdx_stuffp[MINOR(ip->i_rdev)];
- /* close the door, if necessary (get the door information
- from the hardware status register).
- If the last eject is too recent, an autoclose wouldn't probably
- be what we want ..., if we can't read the CD after an autoclose
- no further autocloses will be tried */
- if (inb((unsigned int) stuffp->rreg_status) & MCDX_RBIT_DOOR) {
- if (jiffies - stuffp->ejected < ACLOSE_INHIBIT) return -EIO;
- if (stuffp->autoclose) mcdx_closedoor(stuffp, 1);
- else return -EIO;
- }
+ MCDX_TRACE_IOCTL(("mcdx_ioctl():\n"));
- /* if the media changed we will have to do a little more */
- if (stuffp->xxx) {
+ if (!stuffp)
+ return -ENXIO;
+ if (!ip)
+ return -EINVAL;
+
+ /*
+ * Update disk information, when necessary.
+ * This part will only work, when the new disk is of the same type as
+ * the one which was previousley there, esp. also for audio diks.
+ * This doesn't hurt us, since otherwise the mouting/unmounting scheme
+ * will ensure correct operation.
+ */
+ if (stuffp->xxx) { /* disk changed */
+ if ((-1 == request_toc_data(stuffp)) ||
+ (-1 == read_toc(stuffp)))
+ return -EIO;
+ stuffp->xxx = 0;
+ }
+ switch (command) {
+ case CDROMSTART: /* spin up the drive */
+ MCDX_TRACE_IOCTL(("CDROMSTART\n"));
+ /* Don't think we can do this. Even if we could,
+ * I think the drive times out and stops after a while
+ * anyway. For now, ignore it.
+ */
+ return 0;
- TRACE((OPENCLOSE, "open() media changed\n"));
- /* but wait - the time of media change will be set at the
- very last of this block - it seems, some of the following
- talk() will detect a media change ... (I think, config()
- is the reason. */
+ case CDROMSTOP:
+ MCDX_TRACE_IOCTL(("CDROMSTOP\n"));
+ stuffp->audiostatus = CDROM_AUDIO_INVALID;
+ if (-1 == issue_command(stuffp, MCDX_CMD_STOP, 2 * HZ))
+ return -EIO;
+ return 0;
- stuffp->audiostatus = CDROM_AUDIO_INVALID;
+ case CDROMPLAYTRKIND:
+ MCDX_TRACE_IOCTL(("CDROMPLAYTRKIND\n"));
- /* get the multisession information */
- TRACE((OPENCLOSE, "open() Request multisession info\n"));
- if (-1 == mcdx_requestmultidiskinfo(
- stuffp, &stuffp->multi, 6)) {
- INFO(("No multidiskinfo\n"));
- stuffp->autoclose = 0;
- } else {
- /* we succeeded, so on next open(2) we could try auto close
- again */
- stuffp->autoclose = 1;
-
-#if !MCDX_QUIET
- if (stuffp->multi.multi > 2)
- INFO(("open() unknown multisession value (%d)\n",
- stuffp->multi.multi));
-#endif
+ if ((ans = verify_area(VERIFY_READ, (void *) arg, sizeof(ti))))
+ return ans;
+ memcpy_fromfs(&ti, (void *) arg, sizeof(ti));
+ if ((ti.cdti_trk0 < stuffp->n_first)
+ || (ti.cdti_trk0 > stuffp->n_last)
+ || (ti.cdti_trk1 < stuffp->n_first))
+ return -EINVAL;
+ if (ti.cdti_trk1 > stuffp->n_last)
+ ti.cdti_trk1 = stuffp->n_last;
+ return play_track(stuffp, &ti);
+
+ case CDROMPLAYMSF:
+ MCDX_TRACE_IOCTL(("CDROMPLAYMSF "));
+
+ if ((ans = verify_area(VERIFY_READ, (void *) arg,
+ sizeof(struct cdrom_msf))))
+ return ans;
+ memcpy_fromfs(&msf, (void *) arg, sizeof msf);
+ msf.cdmsf_min0 = uint2bcd(msf.cdmsf_min0);
+ msf.cdmsf_sec0 = uint2bcd(msf.cdmsf_sec0);
+ msf.cdmsf_frame0 = uint2bcd(msf.cdmsf_frame0);
+ msf.cdmsf_min1 = uint2bcd(msf.cdmsf_min1);
+ msf.cdmsf_sec1 = uint2bcd(msf.cdmsf_sec1);
+ msf.cdmsf_frame1 = uint2bcd(msf.cdmsf_frame1);
+ stuffp->resume.stop.minute = msf.cdmsf_min1;
+ stuffp->resume.stop.second = msf.cdmsf_sec1;
+ stuffp->resume.stop.frame = msf.cdmsf_frame1;
+ if (-1 == set_command(stuffp, MCDX_CMD_PLAY,
+ &msf, sizeof(msf), 3 * HZ)) {
+ return -1;
+ }
+ stuffp->audiostatus = CDROM_AUDIO_PLAY;
+ return 0;
- /* multisession ? */
- if (!stuffp->multi.multi)
- stuffp->multi.msf_last.second = 2;
+ case CDROMPAUSE:
+ MCDX_TRACE_IOCTL(("CDROMPAUSE\n"));
- TRACE((OPENCLOSE, "open() MS: %d, last @ %02x:%02x.%02x\n",
- stuffp->multi.multi,
- stuffp->multi.msf_last.minute,
- stuffp->multi.msf_last.second,
- stuffp->multi.msf_last.frame));
+ if (stuffp->audiostatus != CDROM_AUDIO_PLAY)
+ return -EINVAL;
- } /* got multisession information */
+ if (-1 == issue_command(stuffp, MCDX_CMD_STOP, 2 * HZ))
+ return -EIO;
+ if (-1 == request_subq_code(stuffp, &q)) {
+ stuffp->audiostatus = CDROM_AUDIO_NO_STATUS;
+ return 0;
+ }
+ stuffp->resume.start = q.dt;
+ stuffp->audiostatus = CDROM_AUDIO_PAUSED;
+ return 0;
- /* request the disks table of contents (aka diskinfo) */
- if (-1 == mcdx_requesttocdata(stuffp, &stuffp->di, 1)) {
+ case CDROMRESUME:
+ MCDX_TRACE_IOCTL(("CDROMRESUME\n"));
- stuffp->lastsector = -1;
+ if (stuffp->audiostatus != CDROM_AUDIO_PAUSED)
+ return -EINVAL;
+ return play_track(stuffp, NULL);
+ case CDROMREADTOCENTRY:
+ MCDX_TRACE_IOCTL(("CDROMREADTOCENTRY\n"));
- } else {
+ if (-1 == read_toc(stuffp))
+ return -1;
+ if ((ans = verify_area(VERIFY_READ, (void *) arg, sizeof(entry))))
+ return ans;
+ memcpy_fromfs(&entry, (void *) arg, sizeof(entry));
+
+ if (entry.cdte_track == CDROM_LEADOUT)
+ tp = &stuffp->toc[stuffp->n_last - stuffp->n_first + 1];
+ else if (entry.cdte_track > stuffp->n_last
+ || entry.cdte_track < stuffp->n_first)
+ return -EINVAL;
+ else
+ tp = &stuffp->toc[entry.cdte_track - stuffp->n_first];
+
+ if (NULL == tp)
+ printk(KERN_ERR MCDX ": FATAL.\n");
+
+ entry.cdte_adr = tp->adr;
+ entry.cdte_ctrl = tp->ctrl;
+
+ if (entry.cdte_format == CDROM_MSF) {
+ entry.cdte_addr.msf.minute = bcd2uint(tp->dt.minute);
+ entry.cdte_addr.msf.second = bcd2uint(tp->dt.second);
+ entry.cdte_addr.msf.frame = bcd2uint(tp->dt.frame);
+ } else if (entry.cdte_format == CDROM_LBA)
+ entry.cdte_addr.lba = msf2log(&tp->dt);
+ else
+ return -EINVAL;
+
+ if ((ans = verify_area(VERIFY_WRITE, (void *) arg, sizeof(entry))))
+ return ans;
+ memcpy_tofs((void *) arg, &entry, sizeof(entry));
- stuffp->lastsector = (CD_FRAMESIZE / 512)
- * msf2log(&stuffp->di.msf_leadout) - 1;
+ return 0;
- TRACE((OPENCLOSE, "open() start %d (%02x:%02x.%02x) %d\n",
- stuffp->di.n_first,
- stuffp->di.msf_first.minute,
- stuffp->di.msf_first.second,
- stuffp->di.msf_first.frame,
- msf2log(&stuffp->di.msf_first)));
- TRACE((OPENCLOSE, "open() last %d (%02x:%02x.%02x) %d\n",
- stuffp->di.n_last,
- stuffp->di.msf_leadout.minute,
- stuffp->di.msf_leadout.second,
- stuffp->di.msf_leadout.frame,
- msf2log(&stuffp->di.msf_leadout)));
- }
+ case CDROMSUBCHNL:
+ MCDX_TRACE_IOCTL(("CDROMSUBCHNL\n"));
- if (stuffp->toc) {
- TRACE((MALLOC, "open() free old toc @ %p\n", stuffp->toc));
- kfree(stuffp->toc);
-
- stuffp->toc = NULL;
- }
+ if ((ans = verify_area(VERIFY_READ,
+ (void *) arg, sizeof(sub))))
+ return ans;
- TRACE((OPENCLOSE, "open() init irq generation\n"));
- if (-1 == mcdx_config(stuffp, 1)) return -EIO;
+ memcpy_fromfs(&sub, (void *) arg, sizeof(sub));
-#if FALLBACK
- /* Set the read speed */
- WARN(("AAA %x AAA\n", stuffp->readcmd));
- if (stuffp->readerrs) stuffp->readcmd = READ1X;
- else stuffp->readcmd =
- stuffp->present | SINGLE ? READ1X : READ2X;
- WARN(("XXX %x XXX\n", stuffp->readcmd));
-#endif
+ if (-1 == request_subq_code(stuffp, &q))
+ return -EIO;
- /* try to get the first sector, iff any ... */
- if (stuffp->lastsector >= 0) {
- char buf[512];
- int ans;
- int tries;
+ sub.cdsc_audiostatus = stuffp->audiostatus;
+ sub.cdsc_adr = q.adr;
+ sub.cdsc_ctrl = q.ctrl;
+ sub.cdsc_trk = bcd2uint(q.tno);
+ sub.cdsc_ind = bcd2uint(q.index);
+
+ if (sub.cdsc_format == CDROM_LBA) {
+ sub.cdsc_absaddr.lba = msf2log(&q.dt);
+ sub.cdsc_reladdr.lba = msf2log(&q.tt);
+ } else if (sub.cdsc_format == CDROM_MSF) {
+ sub.cdsc_absaddr.msf.minute = bcd2uint(q.dt.minute);
+ sub.cdsc_absaddr.msf.second = bcd2uint(q.dt.second);
+ sub.cdsc_absaddr.msf.frame = bcd2uint(q.dt.frame);
+ sub.cdsc_reladdr.msf.minute = bcd2uint(q.tt.minute);
+ sub.cdsc_reladdr.msf.second = bcd2uint(q.tt.second);
+ sub.cdsc_reladdr.msf.frame = bcd2uint(q.tt.frame);
+ } else
+ return -EINVAL;
+
+ if ((ans = verify_area(VERIFY_WRITE,
+ (void *) arg, sizeof(sub))))
+ return ans;
+ memcpy_tofs((void *) arg, &sub, sizeof(sub));
- stuffp->xa = 0;
- stuffp->audio = 0;
+ return 0;
- for (tries = 6; tries; tries--) {
+ case CDROMREADTOCHDR:
+ MCDX_TRACE_IOCTL(("CDROMREADTOCHDR\n"));
- stuffp->introk = 1;
+ if ((ans = verify_area(VERIFY_WRITE, (void *) arg, sizeof toc)))
+ return ans;
- TRACE((OPENCLOSE, "open() try as %s\n",
- stuffp->xa ? "XA" : "normal"));
+ toc.cdth_trk0 = stuffp->n_first;
+ toc.cdth_trk1 = stuffp->n_last;
+ memcpy_tofs((void *) arg, &toc, sizeof toc);
+ return 0;
- /* set data mode */
- if (-1 == (ans = mcdx_setdatamode(stuffp,
- stuffp->xa ? MODE2 : MODE1, 1))) {
- /* return -EIO; */
- stuffp->xa = 0;
- break;
- }
+ case CDROMMULTISESSION:
+ MCDX_TRACE_IOCTL(("CDROMMULTISESSION\n"));
- if ((stuffp->audio = e_audio(ans))) break;
+ if (0 != (ans = verify_area(VERIFY_READ, (void *) arg,
+ sizeof(struct cdrom_multisession))))
+ return ans;
+
+ memcpy_fromfs(&ms,
+ (void *) arg, sizeof(struct cdrom_multisession));
+ if (ms.addr_format == CDROM_MSF) {
+ ms.addr.msf.minute =
+ bcd2uint(stuffp->multi.msf_last.minute);
+ ms.addr.msf.second =
+ bcd2uint(stuffp->multi.msf_last.second);
+ ms.addr.msf.frame =
+ bcd2uint(stuffp->multi.msf_last.frame);
+ } else if (ms.addr_format == CDROM_LBA)
+ ms.addr.lba = msf2log(&stuffp->multi.msf_last);
+ else
+ return -EINVAL;
+ ms.xa_flag = !!stuffp->multi.multi;
+
+ if (0 != (ans = verify_area(VERIFY_WRITE, (void *) arg,
+ sizeof(struct cdrom_multisession))))
+ return ans;
- while (0 == (ans = mcdx_transfer(stuffp, buf, 0, 1)))
- ;
+ memcpy_tofs((void *) arg,
+ &ms, sizeof(struct cdrom_multisession));
+ return 0;
- if (ans == 1) break;
- stuffp->xa = !stuffp->xa;
- }
- /* if (!tries) return -EIO; */
+ case CDROMEJECT:
+ MCDX_TRACE_IOCTL(("CDROMEJECT\n"));
+ if (stuffp->users > 1)
+ return -EBUSY;
+ if (stuffp->door) {
+ if (-1 == issue_command(stuffp, MCDX_CMD_EJECT, 5 * HZ))
+ return -EIO;
}
+ /*
+ * Force rereading of toc next time the disk gets accessed!
+ */
+ if (stuffp->toc) {
+ kfree(stuffp->toc);
+ stuffp->toc = 0;
+ }
+ return 0;
- /* xa disks will be read in raw mode, others not */
- if (-1 == mcdx_setdrivemode(stuffp,
- stuffp->xa ? RAW : COOKED, 1))
- return -EIO;
-
- if (stuffp->audio) {
- INFO(("open() audio disk found\n"));
- } else if (stuffp->lastsector >= 0) {
- INFO(("open() %s%s disk found\n",
- stuffp->xa ? "XA / " : "",
- stuffp->multi.multi ? "Multi Session" : "Single Session"));
- }
+ case CDROMEJECT_SW:
+ MCDX_TRACE_IOCTL(("CDROMEJECT_SW\n"));
- stuffp->xxx = 0;
- }
+ stuffp->eject_sw = !!arg;
+ return 0;
- /* lock the door if not already done */
- if (0 == stuffp->users && (-1 == mcdx_lockdoor(stuffp, 1, 1)))
- return -EIO;
+ case CDROMVOLCTRL:
+ MCDX_TRACE_IOCTL(("CDROMVOLCTRL\n"));
- stuffp->users++;
- MOD_INC_USE_COUNT;
- return 0;
+ if ((ans = verify_area(VERIFY_READ,
+ (void *) arg,
+ sizeof(volctrl))))
+ return ans;
+
+ memcpy_fromfs(&volctrl, (char *) arg, sizeof(volctrl));
+ /* Adjust for the wiredness of workman. */
+ volctrl.channel2 = volctrl.channel1;
+ volctrl.channel1 = volctrl.channel3 = 0xff;
+ return talk(stuffp, MCDX_CMD_SET_ATTENATOR,
+ &volctrl, sizeof(volctrl),
+ &volctrl, sizeof(volctrl), 2 * HZ);
+
+ default:
+ printk(KERN_WARNING MCDX
+ ": unknown ioctl request 0x%04x\n", command);
+ return -EINVAL;
+ }
}
-static void
-mcdx_close(struct inode *ip, struct file *fp)
+/*
+ * This does actually the transfer from the drive.
+ * Return: -1 on timeout or other error
+ * else status byte (as in stuff->st)
+ * FIXME: the excessive jumping throught wait queues degrades the
+ * performance significantly.
+ */
+static int transfer_data(struct s_drive_stuff *stuffp,
+ char *p, int sector, int nr_sectors)
{
- struct s_drive_stuff *stuffp;
+ int off;
+ int done = 0;
- TRACE((OPENCLOSE, "close()\n"));
+ if (stuffp->valid
+ && (sector >= stuffp->pending)
+ && (sector < stuffp->off_direct)) {
+ off = stuffp->off_requested < (off = sector + nr_sectors)
+ ? stuffp->off_requested : off;
+
+ do {
+ /* wait for the drive become idle, but first
+ * check for possible occurred errors --- the drive
+ * seems to report them asynchronously
+ */
+ current->timeout = jiffies + 5 * HZ;
+ while (stuffp->introk && stuffp->busy
+ && current->timeout) {
+ interruptible_sleep_on(&stuffp->busyq);
+ }
- stuffp = mcdx_stuffp[MINOR(ip->i_rdev)];
+ /* test for possible errors */
+ if (current->timeout == 0 || !stuffp->introk) {
+ if (current->timeout == 0) {
+ printk(KERN_ERR MCDX ": transfer timeout\n");
+ } else if (!stuffp->introk) {
+ printk(KERN_ERR MCDX
+ ": error via irq in transfer reported\n");
+ }
- if (0 == --stuffp->users) {
- sync_dev(ip->i_rdev); /* needed for r/o device? */
+ stuffp->busy = 0;
+ stuffp->valid = 0;
+ stuffp->introk = 1;
+ return -1;
+ }
+ /* test if it's the first sector of a block,
+ * there we have to skip some bytes as we read raw data
+ */
+ if (stuffp->xa && (0 == (stuffp->pending & 3))) {
+ insb(DATA_REG, p,
+ CD_FRAMESIZE_RAW - CD_XA_TAIL - CD_FRAMESIZE);
+ }
+ /* now actually read the data */
+ insb(DATA_REG, p, 512);
- /* invalidate_inodes(ip->i_rdev); */
- invalidate_buffers(ip->i_rdev);
+ /* test if it's the last sector of a block,
+ * if so, we have to expect an interrupt and to skip
+ * some data too
+ */
+ if ((stuffp->busy = (3 == (stuffp->pending & 3)))
+ && stuffp->xa) {
+ int i;
+ for (i = 0; i < CD_XA_TAIL; ++i)
+ inb(DATA_REG);
+ }
+ if (stuffp->pending == sector) {
+ p += 512;
+ done++;
+ sector++;
+ }
+ } while (++(stuffp->pending) < off);
+ } else {
+ unsigned char cmd[6];
+ stuffp->valid = 1;
+ stuffp->pending = sector & ~3;
+ /* do some sanity checks */
+ if (stuffp->pending > stuffp->lastsector) {
+ printk(KERN_ERR MCDX
+ ": sector %d transfer from nirvana requested.\n",
+ stuffp->pending);
+ stuffp->eom = 1;
+ stuffp->valid = 0;
+ return -1;
+ }
+ if ((stuffp->off_direct = stuffp->pending + DIRECT_SIZE)
+ > stuffp->lastsector + 1)
+ stuffp->off_direct = stuffp->lastsector + 1;
+ if ((stuffp->off_requested = stuffp->pending + REQUEST_SIZE)
+ > stuffp->lastsector + 1)
+ stuffp->off_requested = stuffp->lastsector + 1;
+ {
+ unsigned int l = (stuffp->pending / 4)
+ + CD_BLOCK_OFFSET;
-#if !MCDX_QUIET
- if (-1 == mcdx_lockdoor(stuffp, 0, 3))
- INFO(("close() Cannot unlock the door\n"));
-#else
- mcdx_lockdoor(stuffp, 0, 3);
-#endif
+ cmd[0] = uint2bcd(l / 4500), l %= 4500;
+ /* minute */
+ cmd[1] = uint2bcd(l / 75); /* second */
+ cmd[2] = uint2bcd(l % 75); /* frame */
+ }
- /* eject if wished */
- if (stuffp->eject_sw) mcdx_eject(stuffp, 1);
+ stuffp->busy = 1;
+ /*
+ * FIXME: What about the ominous frame length?!
+ */
+ cmd[3] = ~0;
+ cmd[4] = ~0;
+ cmd[5] = ~0;
+
+ outb(stuffp->double_speed ? MCDX_CMD_PLAY_2X : MCDX_CMD_PLAY,
+ DATA_REG);
+ outsb(DATA_REG, cmd, 6);
+ }
- }
- MOD_DEC_USE_COUNT;
+ stuffp->off_direct =
+ (stuffp->off_direct += done) < stuffp->off_requested
+ ? stuffp->off_direct
+ : stuffp->off_requested;
- return;
+ return done;
}
-int check_mcdx_media_change(kdev_t full_dev)
-/* Return: 1 if media changed since last call to this function
- 0 otherwise */
+void do_mcdx_request()
{
- struct s_drive_stuff *stuffp;
+ int dev;
+ struct s_drive_stuff *stuffp;
- INFO(("check_mcdx_media_change called for device %s\n",
- kdevname(full_dev)));
+ again:
- stuffp = mcdx_stuffp[MINOR(full_dev)];
- mcdx_getstatus(stuffp, 1);
-
- if (stuffp->yyy == 0) return 0;
+ if ((CURRENT == NULL) || (CURRENT->rq_status == RQ_INACTIVE)) {
+ return;
+ }
+ stuffp = mcdx_stuffp[MINOR(CURRENT->rq_dev)];
- stuffp->yyy = 0;
- return 1;
-}
+ INIT_REQUEST;
+ dev = MINOR(CURRENT->rq_dev);
-void mcdx_setup(char *str, int *pi)
-{
- if (pi[0] > 0) mcdx_drive_map[0][0] = pi[1];
- if (pi[0] > 1) mcdx_drive_map[0][1] = pi[2];
-}
-
-/* DIRTY PART ******************************************************/
+ if ((dev < 0) || (dev >= MCDX_NDRIVES) || (!stuffp)) {
+ printk(KERN_WARNING MCDX ": bad device requested: %s\n",
+ kdevname(CURRENT->rq_dev));
+ end_request(0);
+ goto again;
+ }
+ if (stuffp->audio) {
+ printk(KERN_WARNING MCDX ": attempt to read from audio cd\n");
+ end_request(0);
+ goto again;
+ }
+ switch (CURRENT->cmd) {
+ case WRITE:
+ printk(KERN_ERR MCDX ": attempt to write to cd!!\n");
+ end_request(0);
+ break;
-static void mcdx_delay(struct s_drive_stuff *stuff, long jifs)
-/* This routine is used for sleeping.
- May be we could use a simple count loop w/ jumps to itself, but
- I wanna make this independent of cpu speed. [1 jiffy is 1/HZ] sec */
-{
- unsigned long tout = jiffies + jifs;
- if (jifs < 0) return;
+ case READ:
+ stuffp->eom = 0; /* clear end of media flag */
+ while (CURRENT->nr_sectors) {
+ int i;
- /* TRACE((INIT, "mcdx_delay %d\n", jifs)); */
+ if (-1 == (i = transfer_data(stuffp,
+ CURRENT->buffer,
+ CURRENT->sector,
+ CURRENT->nr_sectors))) {
+ if (stuffp->eom) {
+ CURRENT->sector += CURRENT->nr_sectors;
+ CURRENT->nr_sectors = 0;
+ } else {
+ /*
+ * FIXME: TRY SOME ERROR RECOVERY HERE!
+ */
+ }
+ end_request(0);
+ goto again;
+ }
+ CURRENT->sector += i;
+ CURRENT->nr_sectors -= i;
+ CURRENT->buffer += (i * 512);
+ }
+ end_request(1);
+ break;
+
+ default:
+ panic(MCDX "do_request: unknown command.\n");
+ break;
+ }
- if (current->pid == 0) { /* no sleep allowed */
- while (jiffies < tout) {
- current->timeout = jiffies;
- schedule();
- }
- } else { /* sleeping is allowed */
- current->timeout = tout;
- /* current->state = TASK_INTERRUPTIBLE; */
- /* And perhaps we should remove the while() { ... } */
- while (current->timeout) {
- interruptible_sleep_on(&stuff->sleepq);
- TRACE((SLEEP, "delay: to is %d\n", current->timeout));
- }
- }
+ goto again;
}
-static void
-mcdx_intr(int irq, void *dev_id, struct pt_regs* regs)
+/*
+ * actions done on open:
+ * 1) get the drives status
+ */
+static int mcdx_open(struct inode *ip, struct file *fp)
{
- struct s_drive_stuff *stuffp;
- unsigned char b;
+ struct s_drive_stuff *stuffp = mcdx_stuffp[MINOR(ip->i_rdev)];
+ int st = 0;
+ unsigned long bang;
- stuffp = mcdx_irq_map[irq];
+ MCDX_TRACE(("mcdx_open()\n"));
- if (stuffp == NULL ) {
- xwarn("mcdx: no device for intr %d\n", irq);
- return;
- }
-
- /* get the interrupt status */
- b = inb((unsigned int) stuffp->rreg_status);
- stuffp->introk = ~b & MCDX_RBIT_DTEN;
+ if (!stuffp)
+ return -ENXIO;
- /* NOTE: We only should get interrupts if data were requested.
- But the drive seems to generate ``asynchronous'' interrupts
- on several error conditions too. (Despite the err int enable
- setting during initialisation) */
-
- /* if not ok, read the next byte as the drives status */
- if (!stuffp->introk) {
- TRACE((IRQ, "intr() irq %d hw status 0x%02x\n", irq, b));
- if (~b & MCDX_RBIT_STEN) {
- xinfo( "intr() irq %d status 0x%02x\n",
- irq, inb((unsigned int) stuffp->rreg_data));
- } else {
- xinfo( "intr() irq %d ambiguous hw status\n", irq);
- }
- } else {
- TRACE((IRQ, "irq() irq %d ok, status %02x\n", irq, b));
- }
+ /* close the door, if necessary (get the door information
+ * from the hardware status register).
+ * If we can't read the CD after an autoclose
+ * no further autocloses will be tried
+ */
+ if (inb(STAT_REG) & MCDX_RBIT_DOOR) {
+ if (stuffp->autoclose && (stuffp->door))
+ issue_command(stuffp, MCDX_CMD_CLOSE_DOOR, 10 * HZ);
+ else
+ return -EIO;
+ }
+ /*
+ * Check if a disk is in.
+ */ bang = jiffies + 10 * HZ;
+ while (jiffies < bang) {
+ st = issue_command(stuffp, MCDX_CMD_GET_STATUS, 5 * HZ);
+ if (st != -1 && (st & MCDX_RBIT_DISKSET))
+ break;
+ current->state = TASK_INTERRUPTIBLE;
+ current->timeout = jiffies + 1 * HZ;
+ schedule();
+ }
+ if (st == -1 || (st & MCDX_RBIT_DISKSET) == 0) {
+ printk(KERN_INFO MCDX ": no disk in drive\n");
+ return -EIO;
+ }
+ /* if the media changed we will have to do a little more
+ * FIXME: after removing of the mcdx_requestmultisession() it is showed
+ * that the logics of this may be broken.
+ */
+ if (stuffp->xxx) {
+ /* but wait - the time of media change will be set at the
+ * very last of this block.
+ */
- stuffp->busy = 0;
- wake_up_interruptible(&stuffp->busyq);
-}
+ stuffp->audiostatus = CDROM_AUDIO_INVALID;
+ stuffp->autoclose = 1;
+ /* get the multisession information */
-static int
-mcdx_talk (
- struct s_drive_stuff *stuffp,
- const unsigned char *cmd, size_t cmdlen,
- void *buffer, size_t size,
- unsigned int timeout, int tries)
-/* Send a command to the drive, wait for the result.
- * returns -1 on timeout, drive status otherwise
- * If buffer is not zero, the result (length size) is stored there.
- * If buffer is zero the size should be the number of bytes to read
- * from the drive. These bytes are discarded.
- */
-{
- int st;
- char c;
- int discard;
+ if (stuffp->multi_cap) {
+ int i = 6; /* number of retries */
+ while (i && (-1 == get_command(stuffp,
+ MCDX_CMD_GET_MDISK_INFO,
+ &stuffp->multi, sizeof(struct s_multi), 2 * HZ)))
+ --i;
+ if (!i) {
+ stuffp->autoclose = 0;
+ /*
+ * No multidisk info
+ */
+ }
+ } else
+ stuffp->multi.multi = 0;
- if ((discard = (buffer == NULL))) buffer = &c;
+ if (stuffp->autoclose) {
+ /* we succeeded, so on next open(2) we could try
+ * auto close again
+ */
- while (stuffp->lock) {
- interruptible_sleep_on(&stuffp->lockq);
- TRACE((SLEEP, "talk: lock = %d\n",
- stuffp->lock));
- }
-
- stuffp->lock = 1;
- stuffp->valid = 0;
-
-#if MCDX_DEBUG & TALK
- {
- unsigned char i;
- TRACE((TALK, "talk() %d / %d tries, res.size %d, command 0x%02x",
- tries, timeout, size, (unsigned char) cmd[0]));
- for (i = 1; i < cmdlen; i++) printk(" 0x%02x", cmd[i]);
- printk("\n");
- }
-#endif
+ /* multisession ? */
+ if (!stuffp->multi.multi)
+ stuffp->multi.msf_last.second = 2;
+ } /* got multisession information */
+ /* request the disks table of contents (aka diskinfo) */
+ if (-1 == request_toc_data(stuffp)) {
+ stuffp->lastsector = -1;
+ } else {
+ stuffp->lastsector = (CD_FRAMESIZE / 512)
+ * msf2log(&stuffp->msf_leadout) - 1;
+ }
- /* give up if all tries are done (bad) or if the status
- * st != -1 (good) */
- for (st = -1; st == -1 && tries; tries--) {
-
- char *bp = (char*) buffer;
- size_t sz = size;
-
- outsb((unsigned int) stuffp->wreg_data, cmd, cmdlen);
- TRACE((TALK, "talk() command sent\n"));
-
- /* get the status byte */
- if (-1 == mcdx_getval(stuffp, timeout, 0, bp)) {
- INFO(("talk() %02x timed out (status), %d tr%s left\n",
- cmd[0], tries - 1, tries == 2 ? "y" : "ies"));
- continue;
- }
- st = *bp;
- sz--;
- if (!discard) bp++;
-
- TRACE((TALK, "talk() got status 0x%02x\n", st));
-
- /* command error? */
- if (e_cmderr(st)) {
- WARN(("command error cmd = %02x %s \n",
- cmd[0], cmdlen > 1 ? "..." : ""));
- st = -1;
- continue;
- }
-
- /* audio status? */
- if (stuffp->audiostatus == CDROM_AUDIO_INVALID)
- stuffp->audiostatus =
- e_audiobusy(st) ? CDROM_AUDIO_PLAY : CDROM_AUDIO_NO_STATUS;
- else if (stuffp->audiostatus == CDROM_AUDIO_PLAY
- && e_audiobusy(st) == 0)
- stuffp->audiostatus = CDROM_AUDIO_COMPLETED;
-
- /* media change? */
- if (e_changed(st)) {
- INFO(("talk() media changed\n"));
- stuffp->xxx = stuffp->yyy = 1;
- }
-
- /* now actually get the data */
- while (sz--) {
- if (-1 == mcdx_getval(stuffp, timeout, 0, bp)) {
- INFO(("talk() %02x timed out (data), %d tr%s left\n",
- cmd[0], tries - 1, tries == 2 ? "y" : "ies"));
- st = -1; break;
- }
- if (!discard) bp++;
- TRACE((TALK, "talk() got 0x%02x\n", *(bp - 1)));
- }
- }
+ if (stuffp->toc) {
+ kfree(stuffp->toc);
+ stuffp->toc = 0;
+ }
+ if (-1 == config_drive(stuffp))
+ return -EIO;
-#if !MCDX_QUIET
- if (!tries && st == -1) INFO(("talk() giving up\n"));
-#endif
+ /* try to get the first sector, iff any ... */
+ if (stuffp->lastsector >= 0) {
+ char buf[512];
+ int ans;
+ int tries;
- stuffp->lock = 0;
- wake_up_interruptible(&stuffp->lockq);
+ stuffp->xa = 0;
+ stuffp->audio = 0;
- TRACE((TALK, "talk() done with 0x%02x\n", st));
- return st;
-}
+ for (tries = 6; tries; tries--) {
+ unsigned char c;
+ stuffp->introk = 1;
-/* MODULE STUFF ***********************************************************/
-#ifdef MODULE
+ /* set data mode */
+ c = stuffp->xa ? MODE2 : MODE1;
+ ans = set_command(stuffp,
+ MCDX_CMD_SET_DATA_MODE,
+ &c, sizeof(c), 5 * HZ);
-int init_module(void)
-{
- int i;
- int drives = 0;
+ if (-1 == ans) {
+ /* return -EIO; */
+ stuffp->xa = 0;
+ break;
+ } else if (ans & MCDX_RBIT_AUDIOTR) {
+ stuffp->audio = 1;
+ break;
+ }
+
+ while (0 == (ans = transfer_data(stuffp, buf,
+ 0, 1)));
- mcdx_init();
- for (i = 0; i < MCDX_NDRIVES; i++) {
- if (mcdx_stuffp[i]) {
- TRACE((INIT, "init_module() drive %d stuff @ %p\n",
- i, mcdx_stuffp[i]));
- drives++;
+ if (ans == 1)
+ break;
+ stuffp->xa = !stuffp->xa;
+ }
+ /* if (!tries) return -EIO; */
}
+ /* xa disks will be read in raw mode, others not */
+ if (-1 == set_drive_mode(stuffp, stuffp->xa ? RAW : COOKED))
+ return -EIO;
+ stuffp->xxx = 0;
}
-
- if (!drives)
+ /* lock the door if not already done */
+ if (0 == stuffp->users && (-1 == lock_door(stuffp, DOOR_LOCK)))
return -EIO;
- register_symtab(0);
- return 0;
+ stuffp->users++;
+ MOD_INC_USE_COUNT;
+ return 0;
}
-void cleanup_module(void)
+static void mcdx_close(struct inode *ip, struct file *fp)
{
- int i;
+ struct s_drive_stuff *stuffp = mcdx_stuffp[MINOR(ip->i_rdev)];
- INFO(("cleanup_module called\n"));
-
- for (i = 0; i < MCDX_NDRIVES; i++) {
- struct s_drive_stuff *stuffp;
- stuffp = mcdx_stuffp[i];
- if (!stuffp) continue;
- release_region((unsigned long) stuffp->wreg_data, MCDX_IO_SIZE);
- free_irq(stuffp->irq, NULL);
- if (stuffp->toc) {
- TRACE((MALLOC, "cleanup_module() free toc @ %p\n", stuffp->toc));
- kfree(stuffp->toc);
+ MCDX_TRACE(("mcdx_close()\n"));
+
+ if (0 == --stuffp->users) {
+ sync_dev(ip->i_rdev); /* needed for r/o device? */
+
+ /* invalidate_inodes(ip->i_rdev); */
+ invalidate_buffers(ip->i_rdev);
+ lock_door(stuffp, DOOR_UNLOCK);
+
+ /* eject if wished and possible */
+ if (stuffp->eject_sw && (stuffp->door)) {
+ issue_command(stuffp, MCDX_CMD_EJECT, 5 * HZ);
}
- TRACE((MALLOC, "cleanup_module() free stuffp @ %p\n", stuffp));
- mcdx_stuffp[i] = NULL;
- kfree(stuffp);
- }
+ }
+ MOD_DEC_USE_COUNT;
- if (unregister_blkdev(MAJOR_NR, DEVICE_NAME) != 0) {
- WARN(("cleanup() unregister_blkdev() failed\n"));
- }
-#if !MCDX_QUIET
- else INFO(("cleanup() succeeded\n"));
-#endif
+ return;
}
-#endif MODULE
+/*
+ * Return: 1 if media changed since last call to this function
+ * 0 otherwise
+ */
+static int mcdx_media_change(kdev_t full_dev)
+{
+ struct s_drive_stuff *stuffp;
-/* Support functions ************************************************/
+ MCDX_TRACE(("mcdx_media_change()\n"));
-#if MCDX_DEBUG
-void trace(int level, const char* fmt, ...)
-{
- char s[255];
- va_list args;
- if (level < 1) return;
- va_start(args, fmt);
- if (sizeof(s) < vsprintf(s, fmt, args))
- printk(MCDX ":: dprintf exceeds limit!!\n");
- else printk(MCDX ":: %s", s);
- va_end(args);
+ /*
+ * FIXME: propably this is unneded or should be simplified!
+ */
+ issue_command(stuffp = mcdx_stuffp[MINOR(full_dev)],
+ MCDX_CMD_GET_STATUS, 5 * HZ);
+
+ return stuffp->xxx;
}
-#endif
-void warn(const char* fmt, ...)
+/* Interrupt handler routine.
+ * This function is called, when during transfer the end of a physical 2048
+ * byte block is reached.
+ */
+static void mcdx_intr(int irq, void *dev_id, struct pt_regs *regs)
{
- char s[255];
- va_list args;
- va_start(args, fmt);
- if (sizeof(s) < vsprintf(s, fmt, args))
- printk(MCDX ":: dprintf exceeds limit!!\n");
- else printk(MCDX ": %s", s);
- va_end(args);
+ struct s_drive_stuff *stuffp;
+ u_char b;
+
+ if (!(stuffp = mcdx_irq_map[irq])) {
+ return; /* hugh? */
+ }
+
+ /* NOTE: We only should get interrupts if data were requested.
+ * But the drive seems to generate ``asynchronous'' interrupts
+ * on several error conditions too. (Despite the err int enable
+ * setting during initialisation)
+ */
+
+ /* get the interrupt status */
+ b = inb(STAT_REG);
+ if (!(b & MCDX_RBIT_DTEN)) {
+ stuffp->introk = 1;
+ } else {
+ stuffp->introk = 0;
+ if (!(b & MCDX_RBIT_STEN)) {
+ printk(KERN_DEBUG MCDX ": irq %d status 0x%02x\n",
+ irq, inb(DATA_REG));
+ } else {
+ MCDX_TRACE(("irq %d ambiguous hw status\n", irq));
+ }
+ }
+ stuffp->busy = 0;
+ wake_up_interruptible(&stuffp->busyq);
}
+/*
+ * FIXME!
+ * This seems to hang badly, when the driver is loaded with inappriopriate
+ * port/irq settings!
+ */
int mcdx_init(void)
{
int drive;
#ifdef MODULE
- WARN(("Version 1.9 for %s\n", kernel_version));
+ printk(KERN_INFO "Mitsumi driver version " VERSION " for %s\n",
+ kernel_version);
#else
- WARN(("Version 1.9\n"));
+ printk(KERN_INFO "Mitsumi driver version " VERSION "\n");
#endif
-
- WARN(("mcdx.c,v 1.2 1996/03/22 01:14:59 heiko Exp\n"));
-
- /* zero the pointer array */
- for (drive = 0; drive < MCDX_NDRIVES; drive++)
- mcdx_stuffp[drive] = NULL;
-
- /* do the initialisation */
- for (drive = 0; drive < MCDX_NDRIVES; drive++) {
- struct s_version version;
- struct s_drive_stuff* stuffp;
- int size;
+ printk("%d\n", MCDX_NDRIVES);
+ for (drive = 0; drive < MCDX_NDRIVES; drive++) {
+ struct {
+ u_char code;
+ u_char version;
+ } firmware;
+ int i;
+ struct s_drive_stuff *stuffp;
+ int size;
mcdx_blocksizes[drive] = 0;
+ mcdx_stuffp[drive] = 0;
- size = sizeof(*stuffp);
-
- TRACE((INIT, "init() try drive %d\n", drive));
+ size = sizeof(*stuffp);
- TRACE((INIT, "kmalloc space for stuffpt's\n"));
- TRACE((MALLOC, "init() malloc %d bytes\n", size));
if (!(stuffp = kmalloc(size, GFP_KERNEL))) {
- WARN(("init() malloc failed\n"));
- break;
+ printk(KERN_ERR MCDX
+ ": malloc of drives data failed!\n");
+ break;
}
+ /* set default values */ memset(stuffp, 0, sizeof(*stuffp));
+ stuffp->autoclose = 1; /* close the door on open(2) */
- TRACE((INIT, "init() got %d bytes for drive stuff @ %p\n", sizeof(*stuffp), stuffp));
-
- /* set default values */
- memset(stuffp, 0, sizeof(*stuffp));
- stuffp->autoclose = 1; /* close the door on open(2) */
-
- stuffp->present = 0; /* this should be 0 already */
- stuffp->toc = NULL; /* this should be NULL already */
-
- /* setup our irq and i/o addresses */
stuffp->irq = irq(mcdx_drive_map[drive]);
- stuffp->wreg_data = stuffp->rreg_data = port(mcdx_drive_map[drive]);
- stuffp->wreg_reset = stuffp->rreg_status = stuffp->wreg_data + 1;
- stuffp->wreg_hcon = stuffp->wreg_reset + 1;
- stuffp->wreg_chn = stuffp->wreg_hcon + 1;
+ stuffp->base = port(mcdx_drive_map[drive]);
/* check if i/o addresses are available */
- if (0 != check_region((unsigned int) stuffp->wreg_data, MCDX_IO_SIZE)) {
- WARN(("0x%3p,%d: "
- "Init failed. I/O ports (0x%3p..0x%3p) already in use.\n",
- stuffp->wreg_data, stuffp->irq,
- stuffp->wreg_data,
- stuffp->wreg_data + MCDX_IO_SIZE - 1));
- TRACE((MALLOC, "init() free stuffp @ %p\n", stuffp));
- kfree(stuffp);
- TRACE((INIT, "init() continue at next drive\n"));
- continue; /* next drive */
+ if (check_region(stuffp->base, MCDX_IO_SIZE)) {
+ printk(KERN_WARNING
+ "Init failed. I/O ports (0x%3x..0x%3x) "
+ "already in use.\n",
+ stuffp->base, stuffp->base + MCDX_IO_SIZE - 1);
+ kfree(stuffp);
+ continue; /* next drive */
}
-
- TRACE((INIT, "init() i/o port is available at 0x%3p\n", stuffp->wreg_data));
-
- TRACE((INIT, "init() hardware reset\n"));
- mcdx_reset(stuffp, HARD, 1);
-
- TRACE((INIT, "init() get version\n"));
- if (-1 == mcdx_requestversion(stuffp, &version, 4)) {
+ /*
+ * Hardware reset.
+ */
+ outb(0, CHAN_REG); /* no dma, no irq -> hardware */
+ outb(0, RESET_REG); /* hw reset */
+
+ i = 10; /* number of retries */
+ while (-1 == get_command(stuffp, MCDX_CMD_GET_FIRMWARE,
+ &firmware, sizeof(firmware), 2 * HZ))
+ --i;
+ if (!i) {
/* failed, next drive */
- WARN(("%s=0x%3p,%d: Init failed. Can't get version.\n",
- MCDX,
- stuffp->wreg_data, stuffp->irq));
- TRACE((MALLOC, "init() free stuffp @ %p\n", stuffp));
- kfree(stuffp);
- TRACE((INIT, "init() continue at next drive\n"));
+ printk(KERN_WARNING
+ "%s=0x%3x,%d: Init failed. Can't get version.\n",
+ MCDX, stuffp->base, stuffp->irq);
+ kfree(stuffp);
continue;
}
-
- switch (version.code) {
- case 'D':
- stuffp->readcmd = READ2X;
- stuffp->present = DOUBLE | DOOR | MULTI;
- break;
- case 'F':
- stuffp->readcmd = READ1X;
- stuffp->present = SINGLE | DOOR | MULTI;
- break;
- case 'M':
- stuffp->readcmd = READ1X;
- stuffp->present = SINGLE;
- break;
- default:
- stuffp->present = 0; break;
- }
-
- stuffp->playcmd = READ1X;
-
-
- if (!stuffp->present) {
- WARN(("%s=0x%3p,%d: Init failed. No Mitsumi CD-ROM?.\n",
- MCDX, stuffp->wreg_data, stuffp->irq));
+ switch (firmware.code) {
+ case 'D':
+ stuffp->double_speed = stuffp->door =
+ stuffp->multi_cap = 1;
+ break;
+ case 'F':
+ stuffp->door = stuffp->multi_cap = 1;
+ break;
+ case 'M':
+ break;
+ default:
kfree(stuffp);
- continue; /* next drive */
}
- TRACE((INIT, "init() register blkdev\n"));
- if (register_blkdev(MAJOR_NR, DEVICE_NAME, &mcdx_fops) != 0) {
- WARN(("%s=0x%3p,%d: Init failed. Can't get major %d.\n",
- MCDX,
- stuffp->wreg_data, stuffp->irq, MAJOR_NR));
+ if (!stuffp)
+ continue; /* next drive */
+
+ if (register_blkdev(MAJOR_NR, DEVICE_NAME, &mcdx_fops)) {
kfree(stuffp);
- continue; /* next drive */
+ continue; /* next drive */
}
-
blk_dev[MAJOR_NR].request_fn = DEVICE_REQUEST;
read_ahead[MAJOR_NR] = READ_AHEAD;
blksize_size[MAJOR_NR] = mcdx_blocksizes;
- TRACE((INIT, "init() subscribe irq and i/o\n"));
mcdx_irq_map[stuffp->irq] = stuffp;
- if (request_irq(stuffp->irq, mcdx_intr, SA_INTERRUPT, DEVICE_NAME, NULL)) {
- WARN(("%s=0x%3p,%d: Init failed. Can't get irq (%d).\n",
- MCDX,
- stuffp->wreg_data, stuffp->irq, stuffp->irq));
+ if (request_irq(stuffp->irq, mcdx_intr,
+ SA_INTERRUPT, DEVICE_NAME, NULL)) {
stuffp->irq = 0;
kfree(stuffp);
- continue;
- }
- request_region((unsigned int) stuffp->wreg_data,
- MCDX_IO_SIZE,
- DEVICE_NAME);
-
- TRACE((INIT, "init() get garbage\n"));
- {
- int i;
- mcdx_delay(stuffp, HZ/2);
- for (i = 100; i; i--) (void) inb((unsigned int) stuffp->rreg_status);
+ continue; /* next drive */
}
+ request_region(stuffp->base, MCDX_IO_SIZE, DEVICE_NAME);
+ /* get junk after some delay.
+ */
+ current->state = TASK_INTERRUPTIBLE;
+ current->timeout = jiffies + HZ / 2;
+ schedule();
+ for (i = 100; i; i--)
+ (void) inb(STAT_REG);
#if WE_KNOW_WHY
- outb(0x50, (unsigned int) stuffp->wreg_chn); /* irq 11 -> channel register */
+ outb(0x50, CHAN_REG); /* irq 11 -> channel register */
#endif
- TRACE((INIT, "init() set non dma but irq mode\n"));
- mcdx_config(stuffp, 1);
-
- stuffp->minor = drive;
+ config_drive(stuffp);
- WARN((DEVICE_NAME " installed at 0x%3p, irq %d."
- " (Firmware version %c %x)\n",
- stuffp->wreg_data, stuffp->irq, version.code,
- version.ver));
+ printk(KERN_INFO MCDX "%d: at 0x%3x, irq %d, firmware: %c %x\n",
+ drive, stuffp->base, stuffp->irq,
+ firmware.code, firmware.version);
mcdx_stuffp[drive] = stuffp;
- TRACE((INIT, "init() mcdx_stuffp[%d] = %p\n", drive, stuffp));
}
return 0;
}
-static int
-mcdx_transfer(struct s_drive_stuff *stuffp,
- char *p, int sector, int nr_sectors)
-/* This seems to do the actually transfer. But it does more. It
- keeps track of errors occurred and will (if possible) fall back
- to single speed on error.
- Return: -1 on timeout or other error
- else status byte (as in stuff->st) */
-{
- int ans;
-
- ans = mcdx_xfer(stuffp, p, sector, nr_sectors);
- return ans;
-#if FALLBACK
- if (-1 == ans) stuffp->readerrs++;
- else return ans;
-
- if (stuffp->readerrs && stuffp->readcmd == READ1X) {
- WARN(("XXX Already reading 1x -- no chance\n"));
- return -1;
- }
-
- WARN(("XXX Fallback to 1x\n"));
-
- stuffp->readcmd = READ1X;
- return mcdx_transfer(stuffp, p, sector, nr_sectors);
-#endif
-
-}
-
-
-static int mcdx_xfer(struct s_drive_stuff *stuffp,
- char *p, int sector, int nr_sectors)
-/* This does actually the transfer from the drive.
- Return: -1 on timeout or other error
- else status byte (as in stuff->st) */
-{
- int off;
- int done = 0;
-
- TRACE((TRANSFER, "transfer() %d sectors at sector %d\n",
- nr_sectors, sector));
-
- if (stuffp->audio) {
- WARN(("attempt to read from audio cd\n"));
- return -1;
- }
-
- while (stuffp->lock) {
- interruptible_sleep_on(&stuffp->lockq);
- TRACE((SLEEP, "xfer: lock = %d\n",
- stuffp->lock));
- }
-
- if (stuffp->valid
- && (sector >= stuffp->pending)
- && (sector < stuffp->off_direct)) {
-
-
- off = stuffp->off_requested < (off = sector + nr_sectors)
- ? stuffp->off_requested : off;
-
- stuffp->lock = current->pid;
-
- do {
- /* wait for the drive become idle, but first
- check for possible occurred errors --- the drive
- seems to report them asynchronously */
-
- current->timeout = jiffies + 5 * HZ;
- while (stuffp->introk && stuffp->busy && current->timeout) {
- interruptible_sleep_on(&stuffp->busyq);
- TRACE((SLEEP, "request: busy = %d, timeout = %d\n",
- stuffp->busy, current->timeout));
- }
-
- /* test for possible errors */
- if (current->timeout == 0 || !stuffp->introk) {
- if (current->timeout == 0) {
- WARN(("mcdx_transfer() timeout\n"));
- } else if (!stuffp->introk) {
- WARN(("mcdx_transfer() error via irq reported\n"));
- } else {
- WARN(("mcdx_transfer() unknown failure in data request\n"));
- }
-
- stuffp->lock = 0;
- stuffp->busy = 0;
- stuffp->valid = 0;
-
- wake_up_interruptible(&stuffp->lockq);
- TRACE((TRANSFER, "transfer() done (-1)\n"));
- return -1;
- }
-
- /* test if it's the first sector of a block,
- * there we have to skip some bytes as we read raw data */
- if (stuffp->xa && (0 == (stuffp->pending & 3))) {
- const int HEAD = CD_FRAMESIZE_RAW - CD_XA_TAIL - CD_FRAMESIZE;
- TRACE((TRANSFER, "transfer() sector %d, skip %d header bytes\n",
- stuffp->pending, HEAD));
- insb((unsigned int) stuffp->rreg_data, p, HEAD);
- }
-
- /* now actually read the data */
-
- TRACE((TRANSFER, "transfer() read sector %d\n", stuffp->pending));
- insb((unsigned int) stuffp->rreg_data, p, 512);
-
- /* test if it's the last sector of a block,
- * if so, we have to expect an interrupt and to skip some
- * data too */
- if ((stuffp->busy = (3 == (stuffp->pending & 3))) && stuffp->xa) {
- char dummy[CD_XA_TAIL];
- TRACE((TRANSFER, "transfer() sector %d, skip %d trailer bytes\n",
- stuffp->pending, CD_XA_TAIL));
- insb((unsigned int) stuffp->rreg_data, &dummy[0], CD_XA_TAIL);
- }
-
- if (stuffp->pending == sector) {
- p += 512;
- done++;
- sector++;
- }
- } while (++(stuffp->pending) < off);
-
- stuffp->lock = 0;
- wake_up_interruptible(&stuffp->lockq);
-
- } else {
-
- static unsigned char cmd[] = {
- 0,
- 0, 0, 0,
- 0, 0, 0
- };
-
- cmd[0] = stuffp->readcmd;
-
- stuffp->valid = 1;
- stuffp->pending = sector & ~3;
-
- /* do some sanity checks */
- TRACE((TRANSFER, "transfer() request sector %d\n", stuffp->pending));
- if (stuffp->pending > stuffp->lastsector) {
- WARN(("transfer() sector %d from nirvana requested.\n",
- stuffp->pending));
- stuffp->status = MCDX_ST_EOM;
- stuffp->valid = 0;
- TRACE((TRANSFER, "transfer() done (-1)\n"));
- return -1;
- }
-
- if ((stuffp->off_direct = stuffp->pending + DIRECT_SIZE)
- > stuffp->lastsector + 1)
- stuffp->off_direct = stuffp->lastsector + 1;
- if ((stuffp->off_requested = stuffp->pending + REQUEST_SIZE)
- > stuffp->lastsector + 1)
- stuffp->off_requested = stuffp->lastsector + 1;
-
- TRACE((TRANSFER, "transfer() pending %d\n", stuffp->pending));
- TRACE((TRANSFER, "transfer() off_dir %d\n", stuffp->off_direct));
- TRACE((TRANSFER, "transfer() off_req %d\n", stuffp->off_requested));
-
- {
- struct s_msf pending;
- log2msf(stuffp->pending / 4, &pending);
- cmd[1] = pending.minute;
- cmd[2] = pending.second;
- cmd[3] = pending.frame;
- }
-
- stuffp->busy = 1;
- cmd[6] = (unsigned char) (stuffp->off_requested - stuffp->pending) / 4;
-
- outsb((unsigned int) stuffp->wreg_data, cmd, sizeof cmd);
-
- }
-
- stuffp->off_direct = (stuffp->off_direct += done) < stuffp->off_requested
- ? stuffp->off_direct : stuffp->off_requested;
-
- TRACE((TRANSFER, "transfer() done (%d)\n", done));
- return done;
-}
-
-
-/* Access to elements of the mcdx_drive_map members */
-
-static char* port(int *ip) { return (char*) ip[0]; }
-static int irq(int *ip) { return ip[1]; }
-
-/* Misc number converters */
-
-static unsigned int bcd2uint(unsigned char c)
-{ return (c >> 4) * 10 + (c & 0x0f); }
-
-static unsigned int uint2bcd(unsigned int ival)
-{ return ((ival / 10) << 4) | (ival % 10); }
-
-static void log2msf(unsigned int l, struct s_msf* pmsf)
-{
- l += CD_BLOCK_OFFSET;
- pmsf->minute = uint2bcd(l / 4500), l %= 4500;
- pmsf->second = uint2bcd(l / 75);
- pmsf->frame = uint2bcd(l % 75);
-}
+#ifdef MODULE
-static unsigned int msf2log(const struct s_msf* pmsf)
-{
- return bcd2uint(pmsf->frame)
- + bcd2uint(pmsf->second) * 75
- + bcd2uint(pmsf->minute) * 4500
- - CD_BLOCK_OFFSET;
-}
-
-int mcdx_readtoc(struct s_drive_stuff* stuffp)
-/* Read the toc entries from the CD,
- * Return: -1 on failure, else 0 */
+int init_module(void)
{
+ int i;
- if (stuffp->toc) {
- TRACE((READTOC, "ioctl() toc already read\n"));
- return 0;
- }
-
- TRACE((READTOC, "ioctl() readtoc for %d tracks\n",
- stuffp->di.n_last - stuffp->di.n_first + 1));
-
- if (-1 == mcdx_hold(stuffp, 1)) return -1;
-
- TRACE((READTOC, "ioctl() tocmode\n"));
- if (-1 == mcdx_setdrivemode(stuffp, TOC, 1)) return -EIO;
-
- /* all seems to be ok so far ... malloc */
- {
- int size;
- size = sizeof(struct s_subqcode) * (stuffp->di.n_last - stuffp->di.n_first + 2);
-
- TRACE((MALLOC, "ioctl() malloc %d bytes\n", size));
- stuffp->toc = kmalloc(size, GFP_KERNEL);
- if (!stuffp->toc) {
- WARN(("Cannot malloc %s bytes for toc\n", size));
- mcdx_setdrivemode(stuffp, DATA, 1);
- return -EIO;
- }
- }
-
- /* now read actually the index */
- {
- int trk;
- int retries;
-
- for (trk = 0;
- trk < (stuffp->di.n_last - stuffp->di.n_first + 1);
- trk++)
- stuffp->toc[trk].index = 0;
-
- for (retries = 300; retries; retries--) { /* why 300? */
- struct s_subqcode q;
- unsigned int idx;
-
- if (-1 == mcdx_requestsubqcode(stuffp, &q, 1)) {
- mcdx_setdrivemode(stuffp, DATA, 1);
- return -EIO;
- }
-
- idx = bcd2uint(q.index);
-
- if ((idx > 0)
- && (idx <= stuffp->di.n_last)
- && (q.tno == 0)
- && (stuffp->toc[idx - stuffp->di.n_first].index == 0)) {
- stuffp->toc[idx - stuffp->di.n_first] = q;
- TRACE((READTOC, "ioctl() toc idx %d (trk %d)\n", idx, trk));
- trk--;
- }
- if (trk == 0) break;
+ mcdx_init();
+ for (i = 0; i < MCDX_NDRIVES; i++) {
+ if (mcdx_stuffp[i]) {
+ register_symtab(0);
+ return 0;
}
- memset(&stuffp->toc[stuffp->di.n_last - stuffp->di.n_first + 1],
- 0, sizeof(stuffp->toc[0]));
- stuffp->toc[stuffp->di.n_last - stuffp->di.n_first + 1].dt
- = stuffp->di.msf_leadout;
- }
-
- /* unset toc mode */
- TRACE((READTOC, "ioctl() undo toc mode\n"));
- if (-1 == mcdx_setdrivemode(stuffp, DATA, 2))
- return -EIO;
-
-#if MCDX_DEBUG && READTOC
- { int trk;
- for (trk = 0;
- trk < (stuffp->di.n_last - stuffp->di.n_first + 2);
- trk++)
- TRACE((READTOC, "ioctl() %d readtoc %02x %02x %02x"
- " %02x:%02x.%02x %02x:%02x.%02x\n",
- trk + stuffp->di.n_first,
- stuffp->toc[trk].control, stuffp->toc[trk].tno, stuffp->toc[trk].index,
- stuffp->toc[trk].tt.minute, stuffp->toc[trk].tt.second, stuffp->toc[trk].tt.frame,
- stuffp->toc[trk].dt.minute, stuffp->toc[trk].dt.second, stuffp->toc[trk].dt.frame));
- }
-#endif
-
- return 0;
-}
-
-static int
-mcdx_playmsf(struct s_drive_stuff* stuffp, const struct cdrom_msf* msf)
-{
- unsigned char cmd[7] = {
- 0, 0, 0, 0, 0, 0, 0
- };
-
- cmd[0] = stuffp->playcmd;
-
- cmd[1] = msf->cdmsf_min0;
- cmd[2] = msf->cdmsf_sec0;
- cmd[3] = msf->cdmsf_frame0;
- cmd[4] = msf->cdmsf_min1;
- cmd[5] = msf->cdmsf_sec1;
- cmd[6] = msf->cdmsf_frame1;
-
- TRACE((PLAYMSF, "ioctl(): play %x "
- "%02x:%02x:%02x -- %02x:%02x:%02x\n",
- cmd[0], cmd[1], cmd[2], cmd[3],
- cmd[4], cmd[5], cmd[6]));
-
- outsb((unsigned int) stuffp->wreg_data, cmd, sizeof cmd);
-
- if (-1 == mcdx_getval(stuffp, 3 * HZ, 0, NULL)) {
- WARN(("playmsf() timeout\n"));
- return -1;
- }
-
- stuffp->audiostatus = CDROM_AUDIO_PLAY;
- return 0;
-}
-
-static int
-mcdx_playtrk(struct s_drive_stuff* stuffp, const struct cdrom_ti* ti)
-{
- struct s_subqcode* p;
- struct cdrom_msf msf;
-
- if (-1 == mcdx_readtoc(stuffp)) return -1;
-
- if (ti) p = &stuffp->toc[ti->cdti_trk0 - stuffp->di.n_first];
- else p = &stuffp->start;
-
- msf.cdmsf_min0 = p->dt.minute;
- msf.cdmsf_sec0 = p->dt.second;
- msf.cdmsf_frame0 = p->dt.frame;
-
- if (ti) {
- p = &stuffp->toc[ti->cdti_trk1 - stuffp->di.n_first + 1];
- stuffp->stop = *p;
- } else p = &stuffp->stop;
-
- msf.cdmsf_min1 = p->dt.minute;
- msf.cdmsf_sec1 = p->dt.second;
- msf.cdmsf_frame1 = p->dt.frame;
-
- return mcdx_playmsf(stuffp, &msf);
-}
-
-
-/* Drive functions ************************************************/
-
-static int
-mcdx_closedoor(struct s_drive_stuff *stuffp, int tries)
-{
- if (stuffp->present & DOOR)
- return mcdx_talk(stuffp, "\xf8", 1, NULL, 1, 5 * HZ, tries);
- else
- return 0;
-}
-
-static int
-mcdx_stop(struct s_drive_stuff *stuffp, int tries)
-{ return mcdx_talk(stuffp, "\xf0", 1, NULL, 1, 2 * HZ, tries); }
-
-static int
-mcdx_hold(struct s_drive_stuff *stuffp, int tries)
-{ return mcdx_talk(stuffp, "\x70", 1, NULL, 1, 2 * HZ, tries); }
-
-static int
-mcdx_eject(struct s_drive_stuff *stuffp, int tries)
-{
- if (stuffp->present & DOOR) {
- stuffp->ejected = jiffies;
- return mcdx_talk(stuffp, "\xf6", 1, NULL, 1, 5 * HZ, tries);
- } else return 0;
-}
-
-static int
-mcdx_requestsubqcode(struct s_drive_stuff *stuffp,
- struct s_subqcode *sub,
- int tries)
-{
- char buf[11];
- int ans;
-
- if (-1 == (ans = mcdx_talk(
- stuffp, "\x20", 1, buf, sizeof(buf),
- 2 * HZ, tries)))
- return -1;
- sub->control = buf[1];
- sub->tno = buf[2];
- sub->index = buf[3];
- sub->tt.minute = buf[4];
- sub->tt.second = buf[5];
- sub->tt.frame = buf[6];
- sub->dt.minute = buf[8];
- sub->dt.second = buf[9];
- sub->dt.frame = buf[10];
-
- return ans;
-}
-
-static int
-mcdx_requestmultidiskinfo(struct s_drive_stuff *stuffp, struct s_multi *multi, int tries)
-{
- char buf[5];
- int ans;
-
- if (stuffp->present & MULTI) {
- ans = mcdx_talk(stuffp, "\x11", 1, buf, sizeof(buf), 2 * HZ, tries);
- multi->multi = buf[1];
- multi->msf_last.minute = buf[2];
- multi->msf_last.second = buf[3];
- multi->msf_last.frame = buf[4];
- return ans;
- } else {
- multi->multi = 0;
- return 0;
- }
-}
-
-static int
-mcdx_requesttocdata(struct s_drive_stuff *stuffp, struct s_diskinfo *info, int tries)
-{
- char buf[9];
- int ans;
- ans = mcdx_talk(stuffp, "\x10", 1, buf, sizeof(buf), 2 * HZ, tries);
- if (ans == -1) {
- info->n_first = 0;
- info->n_last = 0;
- } else {
- info->n_first = bcd2uint(buf[1]);
- info->n_last = bcd2uint(buf[2]);
- info->msf_leadout.minute = buf[3];
- info->msf_leadout.second = buf[4];
- info->msf_leadout.frame = buf[5];
- info->msf_first.minute = buf[6];
- info->msf_first.second = buf[7];
- info->msf_first.frame = buf[8];
}
- return ans;
+ return -EIO;
}
-static int
-mcdx_setdrivemode(struct s_drive_stuff *stuffp, enum drivemodes mode, int tries)
+void cleanup_module(void)
{
- char cmd[2];
- int ans;
-
- TRACE((HW, "setdrivemode() %d\n", mode));
+ int i;
- if (-1 == (ans = mcdx_talk(stuffp, "\xc2", 1, cmd, sizeof(cmd), 5 * HZ, tries)))
- return -1;
+ unregister_blkdev(MAJOR_NR, DEVICE_NAME);
- switch (mode) {
- case TOC: cmd[1] |= 0x04; break;
- case DATA: cmd[1] &= ~0x04; break;
- case RAW: cmd[1] |= 0x40; break;
- case COOKED: cmd[1] &= ~0x40; break;
- default: break;
- }
- cmd[0] = 0x50;
- return mcdx_talk(stuffp, cmd, 2, NULL, 1, 5 * HZ, tries);
-}
-
-static int
-mcdx_setdatamode(struct s_drive_stuff *stuffp, enum datamodes mode, int tries)
-{
- unsigned char cmd[2] = { 0xa0 };
- TRACE((HW, "setdatamode() %d\n", mode));
- switch (mode) {
- case MODE0: cmd[1] = 0x00; break;
- case MODE1: cmd[1] = 0x01; break;
- case MODE2: cmd[1] = 0x02; break;
- default: return -EINVAL;
+ for (i = 0; i < MCDX_NDRIVES; i++) {
+ struct s_drive_stuff *stuffp;
+ stuffp = mcdx_stuffp[i];
+ if (!stuffp)
+ continue;
+ release_region(stuffp->base, MCDX_IO_SIZE);
+ free_irq(stuffp->irq, NULL);
+ if (stuffp->toc) {
+ kfree(stuffp->toc);
+ }
+ mcdx_stuffp[i] = NULL;
+ kfree(stuffp);
}
- return mcdx_talk(stuffp, cmd, 2, NULL, 1, 5 * HZ, tries);
-}
-
-static int
-mcdx_config(struct s_drive_stuff *stuffp, int tries)
-{
- char cmd[4];
-
- TRACE((HW, "config()\n"));
-
- cmd[0] = 0x90;
-
- cmd[1] = 0x10; /* irq enable */
- cmd[2] = 0x05; /* pre, err irq enable */
-
- if (-1 == mcdx_talk(stuffp, cmd, 3, NULL, 1, 1 * HZ, tries))
- return -1;
-
- cmd[1] = 0x02; /* dma select */
- cmd[2] = 0x00; /* no dma */
-
- return mcdx_talk(stuffp, cmd, 3, NULL, 1, 1 * HZ, tries);
-}
-
-static int
-mcdx_requestversion(struct s_drive_stuff *stuffp, struct s_version *ver, int tries)
-{
- char buf[3];
- int ans;
-
- if (-1 == (ans = mcdx_talk(stuffp, "\xdc",
- 1, buf, sizeof(buf), 2 * HZ, tries)))
- return ans;
-
- ver->code = buf[1];
- ver->ver = buf[2];
-
- return ans;
-}
-
-static int
-mcdx_reset(struct s_drive_stuff *stuffp, enum resetmodes mode, int tries)
-{
- if (mode == HARD) {
- outb(0, (unsigned int) stuffp->wreg_chn); /* no dma, no irq -> hardware */
- outb(0, (unsigned int) stuffp->wreg_reset); /* hw reset */
- return 0;
- } else return mcdx_talk(stuffp, "\x60", 1, NULL, 1, 5 * HZ, tries);
-}
-
-static int
-mcdx_lockdoor(struct s_drive_stuff *stuffp, int lock, int tries)
-{
- char cmd[2] = { 0xfe };
- if (stuffp->present & DOOR) {
- cmd[1] = lock ? 0x01 : 0x00;
- return mcdx_talk(stuffp, cmd, sizeof(cmd), NULL, 1, 5 * HZ, tries);
- } else return 0;
+ blk_dev[MAJOR_NR].request_fn = DEVICE_REQUEST;
}
-static int
-mcdx_getstatus(struct s_drive_stuff *stuffp, int tries)
-{ return mcdx_talk(stuffp, "\x40", 1, NULL, 1, 5 * HZ, tries); }
+#else /* MODULE */
-static int
-mcdx_getval(struct s_drive_stuff *stuffp, int to, int delay, char* buf)
-{
- unsigned long timeout = to + jiffies;
- char c;
-
- if (!buf) buf = &c;
-
- while (inb((unsigned int) stuffp->rreg_status) & MCDX_RBIT_STEN) {
- if (jiffies > timeout) return -1;
- mcdx_delay(stuffp, delay);
- }
-
- *buf = (unsigned char) inb((unsigned int) stuffp->rreg_data) & 0xff;
-
- return 0;
-}
-
-static int
-mcdx_setattentuator(
- struct s_drive_stuff* stuffp,
- struct cdrom_volctrl* vol,
- int tries)
+/*
+ * This function is used by the kernel in init/main.c to provide semantics
+ * for the corresponding kernel options. It's unused otherwise.
+ */
+void mcdx_setup(char *str, int *pi)
{
- char cmd[5];
- cmd[0] = 0xae;
- cmd[1] = vol->channel0;
- cmd[2] = 0;
- cmd[3] = vol->channel1;
- cmd[4] = 0;
-
- return mcdx_talk(stuffp, cmd, sizeof(cmd), NULL, 5, 200, tries);
+ if (pi[0] > 0)
+ mcdx_drive_map[0][0] = pi[1];
+ if (pi[0] > 1)
+ mcdx_drive_map[0][1] = pi[2];
}
-
-/* ex:set ts=4 sw=4: */
+#endif /* MODULE */
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen, slshen@lbl.gov
with Sam's (original) version of this