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>
150 lines
4.0 KiB
C
150 lines
4.0 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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cx2584x, in kernels 2.6.16 or newer.
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*/
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#include "pvrusb2-cx2584x-v4l.h"
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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 <media/cx25840.h>
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#include <linux/videodev2.h>
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#include <media/v4l2-common.h>
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#include <linux/errno.h>
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#include <linux/slab.h>
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struct routing_scheme_item {
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int vid;
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int aud;
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};
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struct routing_scheme {
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const struct routing_scheme_item *def;
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unsigned int cnt;
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};
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static const struct routing_scheme_item routing_scheme0[] = {
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[PVR2_CVAL_INPUT_TV] = {
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.vid = CX25840_COMPOSITE7,
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.aud = CX25840_AUDIO8,
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},
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[PVR2_CVAL_INPUT_RADIO] = { /* Treat the same as composite */
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.vid = CX25840_COMPOSITE3,
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.aud = CX25840_AUDIO_SERIAL,
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},
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[PVR2_CVAL_INPUT_COMPOSITE] = {
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.vid = CX25840_COMPOSITE3,
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.aud = CX25840_AUDIO_SERIAL,
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},
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[PVR2_CVAL_INPUT_SVIDEO] = {
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.vid = CX25840_SVIDEO1,
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.aud = CX25840_AUDIO_SERIAL,
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},
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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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/* Specific to gotview device */
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static const struct routing_scheme_item routing_schemegv[] = {
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[PVR2_CVAL_INPUT_TV] = {
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.vid = CX25840_COMPOSITE2,
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.aud = CX25840_AUDIO5,
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},
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[PVR2_CVAL_INPUT_RADIO] = {
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/* line-in is used for radio and composite. A GPIO is
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used to switch between the two choices. */
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.vid = CX25840_COMPOSITE1,
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.aud = CX25840_AUDIO_SERIAL,
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},
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[PVR2_CVAL_INPUT_COMPOSITE] = {
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.vid = CX25840_COMPOSITE1,
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.aud = CX25840_AUDIO_SERIAL,
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},
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[PVR2_CVAL_INPUT_SVIDEO] = {
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.vid = (CX25840_SVIDEO_LUMA3|CX25840_SVIDEO_CHROMA4),
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.aud = CX25840_AUDIO_SERIAL,
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},
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};
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static const struct routing_scheme routing_defgv = {
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.def = routing_schemegv,
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.cnt = ARRAY_SIZE(routing_schemegv),
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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_GOTVIEW] = &routing_defgv,
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};
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void pvr2_cx25840_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
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{
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pvr2_trace(PVR2_TRACE_CHIPS, "subdev cx2584x update...");
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if (hdw->input_dirty || hdw->force_dirty) {
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enum cx25840_video_input vid_input;
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enum cx25840_audio_input aud_input;
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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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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 cx2584x 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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vid_input = sp->def[hdw->input_val].vid;
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aud_input = sp->def[hdw->input_val].aud;
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pvr2_trace(PVR2_TRACE_CHIPS,
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"subdev cx2584x set_input vid=0x%x aud=0x%x",
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vid_input, aud_input);
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sd->ops->video->s_routing(sd, (u32)vid_input, 0, 0);
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sd->ops->audio->s_routing(sd, (u32)aud_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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