mirror of https://gitee.com/openkylin/linux.git
88 lines
2.3 KiB
C
88 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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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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/*
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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/i2c/saa7115.h>
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#include <linux/errno.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: Invalid routing scheme (%u) 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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