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1// SPDX-License-Identifier: GPL-2.0-only2/*3 *4 * Copyright (C) 2005 Mike Isely <isely@pobox.com>5 * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr>6 */7 8/*9 10 This source file is specifically designed to interface with the11 saa711x support that is available in the v4l available starting12 with linux 2.6.15.13 14*/15 16#include "pvrusb2-video-v4l.h"17 18 19 20#include "pvrusb2-hdw-internal.h"21#include "pvrusb2-debug.h"22#include <linux/videodev2.h>23#include <media/v4l2-common.h>24#include <media/i2c/saa7115.h>25#include <linux/errno.h>26 27struct routing_scheme {28 const int *def;29 unsigned int cnt;30};31 32 33static const int routing_scheme0[] = {34 [PVR2_CVAL_INPUT_TV] = SAA7115_COMPOSITE4,35 /* In radio mode, we mute the video, but point at one36 spot just to stay consistent */37 [PVR2_CVAL_INPUT_RADIO] = SAA7115_COMPOSITE5,38 [PVR2_CVAL_INPUT_COMPOSITE] = SAA7115_COMPOSITE5,39 [PVR2_CVAL_INPUT_SVIDEO] = SAA7115_SVIDEO2,40};41 42static const struct routing_scheme routing_def0 = {43 .def = routing_scheme0,44 .cnt = ARRAY_SIZE(routing_scheme0),45};46 47static const int routing_scheme1[] = {48 [PVR2_CVAL_INPUT_TV] = SAA7115_COMPOSITE4,49 [PVR2_CVAL_INPUT_RADIO] = SAA7115_COMPOSITE5,50 [PVR2_CVAL_INPUT_COMPOSITE] = SAA7115_COMPOSITE3,51 [PVR2_CVAL_INPUT_SVIDEO] = SAA7115_SVIDEO2, /* or SVIDEO0, it seems */52};53 54static const struct routing_scheme routing_def1 = {55 .def = routing_scheme1,56 .cnt = ARRAY_SIZE(routing_scheme1),57};58 59static const struct routing_scheme *routing_schemes[] = {60 [PVR2_ROUTING_SCHEME_HAUPPAUGE] = &routing_def0,61 [PVR2_ROUTING_SCHEME_ONAIR] = &routing_def1,62};63 64void pvr2_saa7115_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)65{66 if (hdw->input_dirty || hdw->force_dirty) {67 const struct routing_scheme *sp;68 unsigned int sid = hdw->hdw_desc->signal_routing_scheme;69 u32 input;70 71 pvr2_trace(PVR2_TRACE_CHIPS, "subdev v4l2 set_input(%d)",72 hdw->input_val);73 74 sp = (sid < ARRAY_SIZE(routing_schemes)) ?75 routing_schemes[sid] : NULL;76 if ((sp == NULL) ||77 (hdw->input_val < 0) ||78 (hdw->input_val >= sp->cnt)) {79 pvr2_trace(PVR2_TRACE_ERROR_LEGS,80 "*** WARNING *** subdev v4l2 set_input: Invalid routing scheme (%u) and/or input (%d)",81 sid, hdw->input_val);82 return;83 }84 input = sp->def[hdw->input_val];85 sd->ops->video->s_routing(sd, input, 0, 0);86 }87}88