patch-1.3.34 linux/include/linux/fd.h

• Lines: 399
• Date: Wed Oct 11 13:06:46 1995
• Orig file: v1.3.33/linux/include/linux/fd.h
• Orig date: Mon Sep 18 14:54:09 1995

diff -u --recursive --new-file v1.3.33/linux/include/linux/fd.h linux/include/linux/fd.h
@@ -1,43 +1,53 @@
 #ifndef _LINUX_FD_H
 #define _LINUX_FD_H
 
-#define FDCLRPRM 0 /* clear user-defined parameters */
-#define FDSETPRM 1 /* set user-defined parameters for current media */
-#define FDSETMEDIAPRM 1
-#define FDDEFPRM 2 /* set user-defined parameters until explicitly cleared */
-#define FDDEFMEDIAPRM 2
-#define FDGETPRM 3 /* get disk parameters */
-#define FDGETMEDIAPRM 3
-#define	FDMSGON  4 /* issue kernel messages on media type change */
-#define	FDMSGOFF 5 /* don't issue kernel messages on media type change */
-#define FDFMTBEG 6 /* begin formatting a disk */
-#define	FDFMTTRK 7 /* format the specified track */
-#define FDFMTEND 8 /* end formatting a disk */
-#define FDSETEMSGTRESH	10	/* set fdc error reporting threshold */
-#define FDFLUSH  11 /* flush buffers for media; either for verifying media, or for
+/* new interface flag */
+#define FDHAVEBATCHEDRAWCMD
+
+/* commands needing write access have 0x40 set */
+/* commands needing super user access have 0x80 set */
+
+#define FDCLRPRM 0x0241 /* clear user-defined parameters */
+#define FDSETPRM 0x0242 /* set user-defined parameters for current media */
+#define FDSETMEDIAPRM 0x0242
+#define FDDEFPRM 0x0243 /* set user-defined parameters until explicitly 
+			* cleared */
+#define FDDEFMEDIAPRM 0x0243
+#define FDGETPRM 0x0204 /* get disk parameters */
+#define FDGETMEDIAPRM 0x0204
+#define	FDMSGON  0x0205 /* issue kernel messages on media type change */
+#define	FDMSGOFF 0x0206 /* don't issue kernel messages on media type change */
+#define FDFMTBEG 0x0247 /* begin formatting a disk */
+#define	FDFMTTRK 0x0248 /* format the specified track */
+#define FDFMTEND 0x0249 /* end formatting a disk */
+#define FDSETEMSGTRESH	0x024a	/* set fdc error reporting threshold */
+#define FDFLUSH  0x024b /* flush buffers for media; either for verifying media, or for
                        handling a media change without closing the file
 		       descriptor */
-#define FDSETMAXERRS 12 /* set abortion and read_track threshold */
-#define FDGETMAXERRS 14 /* get abortion and read_track threshold */
-#define FDGETDRVTYP 16          /* get drive type: 5 1/4 or 3 1/2 */
-
-#define FDSETDRVPRM 20 /* set drive parameters */
-#define FDGETDRVPRM 21 /* get drive parameters */
-#define FDGETDRVSTAT 22 /* get drive state */
-#define FDPOLLDRVSTAT 23 /* get drive state */
-#define FDRESET 24 /* reset FDC */
-
-#define FD_RESET_IF_NEEDED 0
-#define FD_RESET_IF_RAWCMD 1
-#define FD_RESET_ALWAYS 2
-
-#define FDGETFDCSTAT 25 /* get fdc state */
-#define FDWERRORCLR  27 /* clear write error and badness information */
-#define FDWERRORGET  28 /* get write error and badness information */
+#define FDSETMAXERRS 0x024c /* set abortion and read_track threshold */
+#define FDGETMAXERRS 0x020e /* get abortion and read_track threshold */
+#define FDGETDRVTYP 0x020f          /* get drive type: 5 1/4 or 3 1/2 */
+
+#define FDSETDRVPRM 0x0250 /* set drive parameters */
+#define FDGETDRVPRM 0x0211 /* get drive parameters */
+#define FDGETDRVSTAT 0x0212 /* get drive state */
+#define FDPOLLDRVSTAT 0x0213 /* get drive state */
+#define FDRESET 0x0254 /* reset FDC */
+
+#ifndef __ASSEMBLY__
+enum reset_mode {
+	FD_RESET_IF_NEEDED ,
+	FD_RESET_IF_RAWCMD ,
+	FD_RESET_ALWAYS };
+#endif
+
+#define FDGETFDCSTAT 0x0215 /* get fdc state */
+#define FDWERRORCLR  0x0256 /* clear write error and badness information */
+#define FDWERRORGET  0x0217 /* get write error and badness information */
 
-#define FDRAWCMD 30 /* send a raw command to the fdc */
+#define FDRAWCMD 0x0258 /* send a raw command to the fdc */
 
-#define FDTWADDLE 40 /* flicker motor-on bit before reading a sector */
+#define FDTWADDLE 0x0259 /* flicker motor-on bit before reading a sector */
 
 /*
  * Maximum number of sectors in a track buffer. Track buffering is disabled
@@ -69,7 +79,7 @@
 			rate,		/* data rate. |= 0x40 for perpendicular */
 			spec1,		/* stepping rate, head unload time */
 			fmt_gap;	/* gap2 size */
-	const char    * name;		/* used only for predefined formats */
+	const char	* name; /* used only for predefined formats */
 };
 
 struct format_descr {
@@ -77,7 +87,7 @@
 };
 
 struct floppy_max_errors {
-  unsigned int
+	unsigned int
 	  abort,      /* number of errors to be reached before aborting */
 	  read_track, /* maximal number of errors permitted to read an
 		       * entire track at once */
@@ -96,30 +106,33 @@
 
 /* the following structure is used by FDSETDRVPRM and FDGETDRVPRM */
 struct floppy_drive_params {
-  char cmos;			/* cmos type */
-
-  /* Spec2 is (HLD<<1 | ND), where HLD is head load time (1=2ms, 2=4 ms etc)
-   * and ND is set means no DMA. Hardcoded to 6 (HLD=6ms, use DMA).
-   */
-  unsigned long max_dtr;	/* Step rate, usec */
-  unsigned long hlt;		/* Head load/settle time, msec */
-  unsigned long hut;		/* Head unload time (remnant of 8" drives) */
-  unsigned long srt;		/* Step rate, usec */
-
-  unsigned long spinup;		/* time needed for spinup ( in jiffies) */
-  unsigned long spindown;	/* timeout needed for spindown */
-  unsigned char spindown_offset;/* decides in which position the disk
-				 * will stop */
-  unsigned char select_delay;	/* delay to wait after select */
-  unsigned char rps;	       	/* rotations per second */
-  unsigned char tracks;	       	/* maximum number of tracks */
-  unsigned long timeout;	/* timeout for interrupt requests */
-
-  unsigned char interleave_sect;/* if there are more sectors, use interleave */
-
-  struct floppy_max_errors max_errors;
-
-  char flags;			/* various flags, including ftd_msg */
+	char cmos;			/* cmos type */
+	
+	/* Spec2 is (HLD<<1 | ND), where HLD is head load time (1=2ms, 2=4 ms 
+	 * etc) and ND is set means no DMA. Hardcoded to 6 (HLD=6ms, use DMA).
+	 */
+	unsigned long max_dtr;		/* Step rate, usec */
+	unsigned long hlt;     		/* Head load/settle time, msec */
+	unsigned long hut;     		/* Head unload time (remnant of 
+					 * 8" drives) */
+	unsigned long srt;     		/* Step rate, usec */
+
+	unsigned long spinup;		/* time needed for spinup (expressed
+					 * in jiffies) */
+	unsigned long spindown;		/* timeout needed for spindown */
+	unsigned char spindown_offset;	/* decides in which position the disk
+					 * will stop */
+	unsigned char select_delay;	/* delay to wait after select */
+	unsigned char rps;		/* rotations per second */
+	unsigned char tracks;		/* maximum number of tracks */
+	unsigned long timeout;		/* timeout for interrupt requests */
+	
+	unsigned char interleave_sect;	/* if there are more sectors, use 
+					 * interleave */
+	
+	struct floppy_max_errors max_errors;
+	
+	char flags;			/* various flags, including ftd_msg */
 /*
  * Announce successful media type detection and media information loss after
  * disk changes.
@@ -132,27 +145,28 @@
 #define FD_SILENT_DCL_CLEAR 0x4
 #define FD_INVERTED_DCL 0x80
 
-  char read_track;		/* use readtrack during probing? */
+	char read_track;		/* use readtrack during probing? */
 
 /*
  * Auto-detection. Each drive type has eight formats which are
  * used in succession to try to read the disk. If the FDC cannot lock onto
  * the disk, the next format is tried. This uses the variable 'probing'.
  */
-  short autodetect[8];		/* autodetected formats */
-
-  int checkfreq; /* how often should the drive be checked for disk changes */
-  int native_format; /* native format of this drive */
+	short autodetect[8];		/* autodetected formats */
+	
+	int checkfreq; /* how often should the drive be checked for disk 
+			* changes */
+	int native_format; /* native format of this drive */
 };
 
 enum {
-FD_NEED_TWADDLE_BIT, /* more magic */
-FD_VERIFY_BIT, /* inquire for write protection */
-FD_DISK_NEWCHANGE_BIT, /* change detected, and no action undertaken yet to
-			  clear media change status */
-FD_UNUSED_BIT,
-FD_DISK_CHANGED_BIT, /* disk has been changed since last i/o */
-FD_DISK_WRITABLE_BIT /* disk is writable */
+	FD_NEED_TWADDLE_BIT, /* more magic */
+	FD_VERIFY_BIT, /* inquire for write protection */
+	FD_DISK_NEWCHANGE_BIT, /* change detected, and no action undertaken yet
+				* to clear media change status */
+	FD_UNUSED_BIT,
+	FD_DISK_CHANGED_BIT, /* disk has been changed since last i/o */
+	FD_DISK_WRITABLE_BIT /* disk is writable */
 };
 
 /* values for these flags */
@@ -165,77 +179,117 @@
 #define FD_DRIVE_PRESENT 0 /* keep fdpatch utils compiling */
 
 struct floppy_drive_struct {
-  signed char flags;
-  unsigned long spinup_date;
-  unsigned long select_date;
-  unsigned long first_read_date;
-  short probed_format;
-  short track; /* current track */
-  short maxblock; /* id of highest block read */
-  short maxtrack; /* id of highest half track read */
-  int generation; /* how many diskchanges? */
+	signed char flags;
+	unsigned long spinup_date;
+	unsigned long select_date;
+	unsigned long first_read_date;
+	short probed_format;
+	short track; /* current track */
+	short maxblock; /* id of highest block read */
+	short maxtrack; /* id of highest half track read */
+	int generation; /* how many diskchanges? */
 
 /*
  * (User-provided) media information is _not_ discarded after a media change
  * if the corresponding keep_data flag is non-zero. Positive values are
  * decremented after each probe.
  */
-  int keep_data;
-
-  /* Prevent "aliased" accesses. */
-  int fd_ref;
-  int fd_device;    /* should be a kdev_t but is externally visible */
-  int last_checked; /* when was the drive last checked for a disk change? */
-
-  char *dmabuf;
-  int bufblocks;
+	int keep_data;
+	
+	/* Prevent "aliased" accesses. */
+	int fd_ref;
+	int fd_device;
+	int last_checked; /* when was the drive last checked for a disk 
+			   * change? */
+	
+	char *dmabuf;
+	int bufblocks;
 };
 
 struct floppy_write_errors {
-  /* Write error logging.
-   *
-   * These fields can be cleared with the FDWERRORCLR ioctl.
-   * Only writes that were attempted but failed due to a physical media
-   * error are logged.  write(2) calls that fail and return an error code
-   * to the user process are not counted.
-   */
-
-  unsigned int write_errors;  /* number of physical write errors encountered */
-
-  /* position of first and last write errors */
-  unsigned long first_error_sector;
-  int           first_error_generation;
-  unsigned long last_error_sector;
-  int           last_error_generation;
-
-  unsigned int badness; /* highest retry count for a read or write operation */
+	/* Write error logging.
+	 *
+	 * These fields can be cleared with the FDWERRORCLR ioctl.
+	 * Only writes that were attempted but failed due to a physical media
+	 * error are logged.  write(2) calls that fail and return an error code
+	 * to the user process are not counted.
+	 */
+
+	unsigned int write_errors;  /* number of physical write errors 
+				     * encountered */
+	
+	/* position of first and last write errors */
+	unsigned long first_error_sector;
+	int           first_error_generation;
+	unsigned long last_error_sector;
+	int           last_error_generation;
+	
+	unsigned int badness; /* highest retry count for a read or write 
+			       * operation */
 };
 
 struct floppy_fdc_state {	
-	int spec1; /* spec1 value last used */
-	int spec2; /* spec2 value last used */
+	int spec1;		/* spec1 value last used */
+	int spec2;		/* spec2 value last used */
 	int dtr;
 	unsigned char version;	/* FDC version code */
 	unsigned char dor;
-	int address; /* io address */
+	int address;		/* io address */
 	unsigned int rawcmd:2;
 	unsigned int reset:1;
 	unsigned int need_configure:1;
 	unsigned int perp_mode:2;
 	unsigned int has_fifo:1;
+	unsigned int driver_version;	/* version code for floppy driver */
+
+	unsigned char track[4]; /* Position of the heads of the 4
+				 * units attached to this FDC, as
+				 * stored on the FDC. In the future,
+				 * the position as stored on the FDC
+				 * might not agree with the actual
+				 * physical position of these drive
+				 * heads. By allowing such
+				 * disagreement, it will be possible
+				 * to reset the FDC without incurring
+				 * the expensive cost of repositioning
+				 * all heads. 
+				 * Right now, these positions are
+				 * hard wired to 0. */
+
+	unsigned int reserved1;
+	unsigned int reserved2;
 };
 
+
+#define FD_DRIVER_VERSION 0x100
+/* user programs using the floppy API should use floppy_fdc_state to
+ * get the version number of the floppy driver that they are running
+ * on. If this version number is bigger than the one compiled into the
+ * user program (the FD_DRIVER_VERSION define), it should be prepared
+ * to bigger structures
+ */
+
+
 struct floppy_raw_cmd {
-  void *data;
-  long length;
+	unsigned int flags;
+	void *data;
+	char *kernel_data; /* location of data buffer in the kernel */
+	struct floppy_raw_cmd *next; /* used for chaining of raw cmd's 
+				      * withing the kernel */
+	long length; /* in: length of dma transfer. out: remaining bytes */
+	long phys_length; /* physical length, if different from dma length */
+	int buffer_length; /* length of allocated buffer */
+
+	unsigned char rate;
+	unsigned char cmd_count;
+	unsigned char cmd[16];
+	unsigned char reply_count;
+	unsigned char reply[16];
+	int track;
+	int resultcode;
 
-  unsigned char rate;
-  unsigned char flags;
-  unsigned char cmd_count;
-  unsigned char cmd[9];
-  unsigned char reply_count;
-  unsigned char reply[7];
-  int track;
+	int reserved1;
+	int reserved2;
 };
 #endif
 
@@ -245,11 +299,22 @@
 #define FD_RAW_READ 1
 #define FD_RAW_WRITE 2
 #define FD_RAW_NO_MOTOR 4
-#define FD_RAW_DISK_CHANGE 4
-#define FD_RAW_INTR 8
-#define FD_RAW_SPIN 16
-#define FD_RAW_NO_MOTOR_AFTER 32
-#define FD_RAW_NEED_DISK 64
-#define FD_RAW_NEED_SEEK 128
-
+#define FD_RAW_DISK_CHANGE 4 /* out: disk change flag was set */
+#define FD_RAW_INTR 8    /* wait for an interrupt */
+#define FD_RAW_SPIN 0x10 /* spin up the disk for this command */
+#define FD_RAW_NO_MOTOR_AFTER 0x20 /* switch the motor off after command 
+				    * completion */
+#define FD_RAW_NEED_DISK 0x40  /* this command needs a disk to be present */
+#define FD_RAW_NEED_SEEK 0x80  /* this command uses an implied seek (soft) */
+
+/* more "in" flags */
+#define FD_RAW_MORE 0x100  /* more records follow */
+#define FD_RAW_STOP_IF_FAILURE 0x200 /* stop if we encounter a failure */
+#define FD_RAW_STOP_IF_SUCCESS 0x400 /* stop if command successful */
+#define FD_RAW_SOFTFAILURE 0x800 /* consider the return value for failure
+				  * detection too */
+
+/* more "out" flags */
+#define FD_RAW_FAILURE 0x10000 /* command sent to fdc, fdc returned error */
+#define FD_RAW_HARDFAILURE 0x20000 /* fdc had to be reset, or timed out */
 #endif