d855497edb
Implement V4L2 driver for the Hauppauge PVR USB2 TV tuner. The Hauppauge PVR USB2 is a USB connected TV tuner with an embedded cx23416 hardware MPEG2 encoder. There are two major variants of this device; this driver handles both. Any V4L2 application which understands MPEG2 video stream data should be able to work with this device. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
/*
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*
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* $Id$
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*
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* Copyright (C) 2005 Mike Isely <isely@pobox.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifndef __PVRUSB2_UTIL_H
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#define __PVRUSB2_UTIL_H
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#define PVR2_DECOMPOSE_LE(t,i,d) \
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do { \
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(t)[i] = (d) & 0xff;\
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(t)[i+1] = ((d) >> 8) & 0xff;\
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(t)[i+2] = ((d) >> 16) & 0xff;\
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(t)[i+3] = ((d) >> 24) & 0xff;\
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} while(0)
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#define PVR2_DECOMPOSE_BE(t,i,d) \
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do { \
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(t)[i+3] = (d) & 0xff;\
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(t)[i+2] = ((d) >> 8) & 0xff;\
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(t)[i+1] = ((d) >> 16) & 0xff;\
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(t)[i] = ((d) >> 24) & 0xff;\
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} while(0)
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#define PVR2_COMPOSE_LE(t,i) \
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((((u32)((t)[i+3])) << 24) | \
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(((u32)((t)[i+2])) << 16) | \
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(((u32)((t)[i+1])) << 8) | \
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((u32)((t)[i])))
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#define PVR2_COMPOSE_BE(t,i) \
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((((u32)((t)[i])) << 24) | \
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(((u32)((t)[i+1])) << 16) | \
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(((u32)((t)[i+2])) << 8) | \
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((u32)((t)[i+3])))
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#endif /* __PVRUSB2_UTIL_H */
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/*
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Stuff for Emacs to see, in order to encourage consistent editing style:
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*** Local Variables: ***
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*** mode: c ***
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*** fill-column: 75 ***
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*** tab-width: 8 ***
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*** c-basic-offset: 8 ***
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*** End: ***
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*/
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