PERFORCE change 120460 for review

[Matt Jacob]

http://perforce.freebsd.org/chv.cgi?CH=120460

Change 120460 by mjacob at mjexp on 2007/05/27 17:31:10

	Add an ioctl entry point in prepartion for lsiutil support.

Affected files ...

.. //depot/projects/mjexp/sys/dev/mpt/mpt.c#9 edit
.. //depot/projects/mjexp/sys/dev/mpt/mpt_ioctl.h#1 add

Differences ...

==== //depot/projects/mjexp/sys/dev/mpt/mpt.c#9 (text+ko) ====

@@ -108,10 +108,41 @@
 #include <dev/mpt/mpilib/mpi_targ.h>
 
 #include <sys/sysctl.h>
+#include <sys/conf.h>
+#include <sys/ioccom.h>
 
 #define MPT_MAX_TRYS 3
 #define MPT_MAX_WAIT 300000
 
+static d_ioctl_t mptioctl;
+#if __FreeBSD_version < 500000  
+#define MPT_CDEV_MAJOR	249
+static struct cdevsw mpt_cdevsw = {
+	/* open */	nullopen,
+	/* close */	nullclose,
+	/* read */	noread,
+	/* write */	nowrite,
+	/* ioctl */	mptioctl,
+	/* poll */	nopoll,
+	/* mmap */	nommap,
+	/* strategy */	nostrategy,
+	/* name */	"mpt",
+	/* maj */	MPT_CDEV_MAJOR,
+	/* dump */	nodump,
+	/* psize */	nopsize,
+	/* flags */	D_TAPE,
+};
+#else
+static struct cdevsw mpt_cdevsw = {
+	.d_version =	D_VERSION,
+#if	__FreeBSD_version < 700037
+	.d_flags =	D_NEEDGIANT,
+#endif
+	.d_ioctl =	mptioctl,
+	.d_name =	"mpt",
+};
+#endif
+
 static int maxwait_ack = 0;
 static int maxwait_int = 0;
 static int maxwait_state = 0;
@@ -2099,6 +2130,7 @@
 	    mpt_config_reply_handler;
 	mpt_reply_handlers[MPT_CBI(MPT_REPLY_HANDLER_HANDSHAKE)] =
 	    mpt_handshake_reply_handler;
+	(void) make_dev(&mpt_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, "mptctl");
 	return (0);
 }
 
@@ -2140,7 +2172,6 @@
 	MPT_LOCK(mpt);
 	error = mpt_configure_ioc(mpt, 0, 0);
 	MPT_UNLOCK(mpt);
-
 	return (error);
 }
 
@@ -2624,6 +2655,40 @@
 }
 
 /*
+ * IOCTL support
+ */
+
+#if __FreeBSD_version < 500000  
+#define	_DEV	dev_t
+#define	_IOP	struct proc
+#else
+#define	_IOP	struct thread
+#define	_DEV	struct cdev *
+#endif
+
+static int
+mptioctl(_DEV dev, u_long c, caddr_t addr, int flags, _IOP *td)
+{
+	struct mpt_softc *mpt;
+	int retval = ENOTTY;
+
+	TAILQ_FOREACH(mpt, &mpt_tailq, links) {
+		if (minor(dev) == device_get_unit(mpt->dev)) {
+			break;
+		}
+	}
+	if (mpt == NULL) {
+		return (ENXIO);
+	}
+
+	switch (c) {
+	default:
+		break;
+	}
+	return (retval);
+}
+
+/*
  * Endian Conversion Functions- only used on Big Endian machines
  */
 #if	_BYTE_ORDER == _BIG_ENDIAN