1 files changed, 68 insertions, 0 deletions
diff --git a/sys/dev/tdfx/tdfx_io.h b/sys/dev/tdfx/tdfx_io.h
new file mode 100644
index 0000000..47d7186
--- /dev/null
+++ b/sys/dev/tdfx/tdfx_io.h
@@ -0,0 +1,68 @@
+/* This code originally came from a nice man, I don't have your name,
+ * please email cokane@pohl.ececs.uc.edu for proper recognition 
+ * it is basically a derivative of some sys/dhio.h file to work with the 3dfx
+ * cards 
+ */
+#ifndef TDFX_IO_H
+#define TDFX_IO_H
+
+#ifndef KERNEL
+#include <sys/types.h>
+#endif
+
+/*
+ * define an ioctl here
+ */
+#define DHIOCRESET _IO('D', 0)   /* reset the voodoo device */
+#define GETVOODOO 0x3302
+#define SETVOODOO 0x3303
+#define MOREVOODOO 0x3300
+#define _IOC_NRBITS	8
+#define _IOC_TYPEBITS	8
+#define _IOC_SIZEBITS	14
+#define _IOC_DIRBITS	2
+
+#define _IOC_NRMASK	((1 << _IOC_NRBITS)-1)
+#define _IOC_TYPEMASK	((1 << _IOC_TYPEBITS)-1)
+#define _IOC_SIZEMASK	((1 << _IOC_SIZEBITS)-1)
+#define _IOC_DIRMASK	((1 << _IOC_DIRBITS)-1)
+
+#define _IOC_NRSHIFT	0
+#define _IOC_TYPESHIFT	(_IOC_NRSHIFT+_IOC_NRBITS)
+#define _IOC_SIZESHIFT	(_IOC_TYPESHIFT+_IOC_TYPEBITS)
+#define _IOC_DIRSHIFT	(_IOC_SIZESHIFT+_IOC_SIZEBITS)
+
+/*
+ * Direction bits.
+ */
+#define _IOC_NONE	0U
+#define _IOC_WRITE	1U
+#define _IOC_READ	2U
+
+#define _IOCV(dir,type,nr,size) \
+	(((dir)  << _IOC_DIRSHIFT) | \
+	 ((type) << _IOC_TYPESHIFT) | \
+	 ((nr)   << _IOC_NRSHIFT) | \
+	 ((size) << _IOC_SIZESHIFT))
+
+/* used to create numbers */
+#define _IOV(type,nr)		_IOCV(_IOC_NONE,(type),(nr),0)
+#define _IORV(type,nr,size)	_IOCV(_IOC_READ,(type),(nr),sizeof(size))
+#define _IOWV(type,nr,size)	_IOCV(_IOC_WRITE,(type),(nr),sizeof(size))
+#define _IOWRV(type,nr,size)	_IOCV(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(size))
+
+/* used to decode ioctl numbers.. */
+#define _IOC_DIR(nr)		(((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK)
+#define _IOC_TYPE(nr)		(((nr) >> _IOC_TYPESHIFT) & _IOC_TYPEMASK)
+#define _IOC_NR(nr)		(((nr) >> _IOC_NRSHIFT) & _IOC_NRMASK)
+#define _IOC_SIZE(nr)		(((nr) >> _IOC_SIZESHIFT) & _IOC_SIZEMASK)
+
+/* ...and for the drivers/sound files... */
+
+#define IOCV_IN		(_IOC_WRITE << _IOC_DIRSHIFT)
+#define IOCV_OUT	(_IOC_READ << _IOC_DIRSHIFT)
+#define IOCV_INOUT	((_IOC_WRITE|_IOC_READ) << _IOC_DIRSHIFT)
+#define IOCSIZE_MASK	(_IOC_SIZEMASK << _IOC_SIZESHIFT)
+#define IOCSIZE_SHIFT	(_IOC_SIZESHIFT)
+
+#endif