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664a31e496
is an application space macro and the applications are supposed to be free to use it as they please (but cannot). This is consistant with the other BSD's who made this change quite some time ago. More commits to come.
98 lines
3.4 KiB
C
98 lines
3.4 KiB
C
/*
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* Video spigot capture driver.
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*
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* Copyright (c) 1995, Jim Lowe. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer. 2.
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Version 1.2, Aug 30, 1995.
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* $FreeBSD$
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*/
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#ifndef _MACHINE_SPIGOT_H_
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#define _MACHINE_SPIGOT_H_
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#include <sys/ioccom.h>
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struct spigot_info {
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unsigned long maddr;
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unsigned short irq;
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};
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/*
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* Get memory address.
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*/
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#define SPIGOT_GET_INFO _IOR('s', 4, struct spigot_info)
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/*
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* Set up a user interrupt.
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*/
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#define SPIGOT_SETINT _IOW('s', 5, int)
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/*
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* Allow/disallow access to the I/O Page.
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*/
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#define SPIGOT_IOPL_ON _IO ('s', 6)
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#define SPIGOT_IOPL_OFF _IO ('s', 7)
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#ifndef _KERNEL
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/*
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* Defines for spigot library.
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*/
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unsigned short * spigot_open(char *dev);
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void spigot_close(void);
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void spigot_set_capture_size(int width, int vtof);
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unsigned char spigot_start_xfer(int num_frames);
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void spigot_stop_xfer(void);
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unsigned char spigot_status(void);
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/*
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* Define the status bits.
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*/
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#define SPIGOT_COLOR 0x01 /* Color present (No color) */
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#define SPIGOT_60HZ 0x02 /* 60 hz input signal (50hz) */
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#define SPIGOT_NO_HORIZONTAL_LOCK 0x04 /* Horizontal lock present */
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#define SPIGOT_HPLL_LOCKED 0x08 /* HPLL locked (HPLL unlocked)*/
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#define SPIGOT_VCR_MODE 0x10 /* VCR mode (TV mode) */
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#define SPIGOT_VSYNC_PRESENT 0x20 /* Vsync present */
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/*
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* spigot_open() returns a data address pointing to the spigot data.
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* Each read from this address returns the next word. The ``dev'' passed
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* is usually "/dev/spigot". Data is described in the phillips desktop
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* video data handbook under the 7191 chip. Formats may be either
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* YUV 4:2:2 or YUV 4:1:1. A sample device driver for ``nv'' is included
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* with this code.
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*
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* spigot_close() cleans up and closes the device.
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*
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* spigot_set_capture_size() will set the capture window size. Width should be
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* one of: 80, 160, 240, 320, or 640 for NTSC or
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* 96, 192, 288, 384 for PAL.
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* vtof is the Vertical top of frame offset and must be between 0 and 15 lines.
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*
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* spigot_start_xfer() will start a transfer from the 7191 to the data fifo.
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* spigot_stop_xfer() will clear the data fifo and abort any transfers.
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*
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* spigot_status() will return the above status bits.
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*/
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#endif /* !_KERNEL */
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#endif /* !_MACHINE_SPIGOT_H_ */
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