linux-user: Add support for FD<SETEMSGTRESH|SETMAXERRS|GETMAXERRS> ioctls

FDSETEMSGTRESH, FDSETMAXERRS, and FDGETMAXERRS ioctls are commands
for controlling error reporting of a floppy drive.

FDSETEMSGTRESH's third agrument is a pointer to the structure:

struct floppy_max_errors {
    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 */
      reset,      /* maximal number of errors before a reset is tried */
      recal,      /* maximal number of errors before a recalibrate is
                   * tried */
      /*
       * Threshold for reporting FDC errors to the console.
       * Setting this to zero may flood your screen when using
       * ultra cheap floppies ;-)
       */
      reporting;
};

defined in Linux kernel header <linux/fd.h>.

Since all fields of the structure are of type 'unsigned int', there is
no need to define "target_floppy_max_errors".

FDSETMAXERRS and FDGETMAXERRS ioctls do not use the third argument.

Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1579214991-19602-8-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

1 files changed, 7 insertions, 0 deletions

diff --git a/linux-user/syscall_types.h b/linux-user/syscall_types.h
index 4e36983826..e4e0429637 100644
--- a/linux-user/syscall_types.h
+++ b/linux-user/syscall_types.h
@@ -261,6 +261,13 @@ STRUCT(blkpg_ioctl_arg,
        TYPE_INT, /* datalen */
        TYPE_PTRVOID) /* data */
 
+STRUCT(floppy_max_errors,
+       TYPE_INT, /* abort */
+       TYPE_INT, /* read_track */
+       TYPE_INT, /* reset */
+       TYPE_INT, /* recal */
+       TYPE_INT) /* reporting */
+
 #if defined(CONFIG_USBFS)
 /* usb device ioctls */
 STRUCT(usbdevfs_ctrltransfer,