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author | cokane <cokane@FreeBSD.org> | 2000-06-21 20:09:31 +0000 |
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committer | cokane <cokane@FreeBSD.org> | 2000-06-21 20:09:31 +0000 |
commit | fd35136c6dcf725645029a03a946c73fb3467e67 (patch) | |
tree | 8b662769603e5160c99a35923ac82535a89494cb /sys/dev/tdfx/tdfx_io.h | |
download | FreeBSD-src-fd35136c6dcf725645029a03a946c73fb3467e67.zip FreeBSD-src-fd35136c6dcf725645029a03a946c73fb3467e67.tar.gz |
First import of my 3dfx voodoo driver. Currently it supports the Voodoo Graphics and Voodoo2 perfectly. It works just like the 3dfx driver does for linux, by using a character device at /dev/3dfx of Major 107 to provide a window into the 3dfx card's memory space. This interface is used by glide and mesa as far as i know, and probably some other libraries too.
Approved by: jkh
Diffstat (limited to 'sys/dev/tdfx/tdfx_io.h')
-rw-r--r-- | sys/dev/tdfx/tdfx_io.h | 68 |
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 |