[PULL,06/17] linux-user: Add support for FD<SETEMSGTRESH|SETMAXERRS|GETMAXERRS> ioctls
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Message ID 20200123082227.2037994-7-laurent@vivier.eu
State New
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Series
  • [PULL,01/17] linux-user:Fix align mistake when mmap guest space
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Commit Message

Laurent Vivier Jan. 23, 2020, 8:22 a.m. UTC
From: Aleksandar Markovic <amarkovic@wavecomp.com>

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>
---
 linux-user/ioctls.h        | 3 +++
 linux-user/syscall_defs.h  | 3 +++
 linux-user/syscall_types.h | 7 +++++++
 3 files changed, 13 insertions(+)

Patch
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diff --git a/linux-user/ioctls.h b/linux-user/ioctls.h
index 3affd8814a86..2c3d798842e4 100644
--- a/linux-user/ioctls.h
+++ b/linux-user/ioctls.h
@@ -114,7 +114,10 @@ 
 
      IOCTL(FDMSGON, 0, TYPE_NULL)
      IOCTL(FDMSGOFF, 0, TYPE_NULL)
+     IOCTL(FDSETEMSGTRESH, 0, TYPE_NULL)
      IOCTL(FDFLUSH, 0, TYPE_NULL)
+     IOCTL(FDSETMAXERRS, IOC_W, MK_PTR(MK_STRUCT(STRUCT_floppy_max_errors)))
+     IOCTL(FDGETMAXERRS, IOC_R, MK_PTR(MK_STRUCT(STRUCT_floppy_max_errors)))
      IOCTL(FDRESET, 0, TYPE_NULL)
      IOCTL(FDRAWCMD, 0, TYPE_NULL)
      IOCTL(FDTWADDLE, 0, TYPE_NULL)
diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
index a73cc3d06790..48de76145f0c 100644
--- a/linux-user/syscall_defs.h
+++ b/linux-user/syscall_defs.h
@@ -899,7 +899,10 @@  struct target_pollfd {
 
 #define TARGET_FDMSGON        TARGET_IO(2, 0x45)
 #define TARGET_FDMSGOFF       TARGET_IO(2, 0x46)
+#define TARGET_FDSETEMSGTRESH TARGET_IO(2, 0x4a)
 #define TARGET_FDFLUSH        TARGET_IO(2, 0x4b)
+#define TARGET_FDSETMAXERRS  TARGET_IOW(2, 0x4c, struct floppy_max_errors)
+#define TARGET_FDGETMAXERRS  TARGET_IOR(2, 0x0e, struct floppy_max_errors)
 #define TARGET_FDRESET        TARGET_IO(2, 0x54)
 #define TARGET_FDRAWCMD       TARGET_IO(2, 0x58)
 #define TARGET_FDTWADDLE      TARGET_IO(2, 0x59)
diff --git a/linux-user/syscall_types.h b/linux-user/syscall_types.h
index 4e3698382629..e4e0429637c5 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,