90135c9686
This change does not change any outward behavior; it merely chops down some large if-conditions with embedded assignments into something a little more maintainable for others (I of course never had a problem with this...). Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
116 lines
3.2 KiB
C
116 lines
3.2 KiB
C
/*
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*
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*
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* Copyright (C) 2005 Mike Isely <isely@pobox.com>
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* Copyright (C) 2004 Aurelien Alleaume <slts@free.fr>
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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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/*
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This source file is specifically designed to interface with the
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saa711x support that is available in the v4l available starting
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with linux 2.6.15.
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*/
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#include "pvrusb2-video-v4l.h"
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#include "pvrusb2-hdw-internal.h"
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#include "pvrusb2-debug.h"
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#include <linux/videodev2.h>
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#include <media/v4l2-common.h>
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#include <media/saa7115.h>
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#include <linux/errno.h>
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#include <linux/slab.h>
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struct routing_scheme {
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const int *def;
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unsigned int cnt;
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};
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static const int routing_scheme0[] = {
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[PVR2_CVAL_INPUT_TV] = SAA7115_COMPOSITE4,
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/* In radio mode, we mute the video, but point at one
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spot just to stay consistent */
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[PVR2_CVAL_INPUT_RADIO] = SAA7115_COMPOSITE5,
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[PVR2_CVAL_INPUT_COMPOSITE] = SAA7115_COMPOSITE5,
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[PVR2_CVAL_INPUT_SVIDEO] = SAA7115_SVIDEO2,
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};
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static const struct routing_scheme routing_def0 = {
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.def = routing_scheme0,
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.cnt = ARRAY_SIZE(routing_scheme0),
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};
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static const int routing_scheme1[] = {
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[PVR2_CVAL_INPUT_TV] = SAA7115_COMPOSITE4,
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[PVR2_CVAL_INPUT_RADIO] = SAA7115_COMPOSITE5,
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[PVR2_CVAL_INPUT_COMPOSITE] = SAA7115_COMPOSITE3,
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[PVR2_CVAL_INPUT_SVIDEO] = SAA7115_SVIDEO2, /* or SVIDEO0, it seems */
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};
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static const struct routing_scheme routing_def1 = {
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.def = routing_scheme1,
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.cnt = ARRAY_SIZE(routing_scheme1),
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};
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static const struct routing_scheme *routing_schemes[] = {
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[PVR2_ROUTING_SCHEME_HAUPPAUGE] = &routing_def0,
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[PVR2_ROUTING_SCHEME_ONAIR] = &routing_def1,
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};
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void pvr2_saa7115_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
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{
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if (hdw->input_dirty || hdw->force_dirty) {
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const struct routing_scheme *sp;
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unsigned int sid = hdw->hdw_desc->signal_routing_scheme;
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u32 input;
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pvr2_trace(PVR2_TRACE_CHIPS, "subdev v4l2 set_input(%d)",
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hdw->input_val);
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sp = (sid < ARRAY_SIZE(routing_schemes)) ?
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routing_schemes[sid] : NULL;
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if ((sp == NULL) ||
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(hdw->input_val < 0) ||
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(hdw->input_val >= sp->cnt)) {
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pvr2_trace(PVR2_TRACE_ERROR_LEGS,
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"*** WARNING *** subdev v4l2 set_input:"
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" Invalid routing scheme (%u)"
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" and/or input (%d)",
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sid, hdw->input_val);
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return;
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}
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input = sp->def[hdw->input_val];
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sd->ops->video->s_routing(sd, input, 0, 0);
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}
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}
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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: 70 ***
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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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