cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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pvrusb2-cs53l32a.c (1678B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      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 the
     11   v4l-dvb cs53l32a module.
     12
     13*/
     14
     15#include "pvrusb2-cs53l32a.h"
     16
     17
     18#include "pvrusb2-hdw-internal.h"
     19#include "pvrusb2-debug.h"
     20#include <linux/videodev2.h>
     21#include <media/v4l2-common.h>
     22#include <linux/errno.h>
     23
     24struct routing_scheme {
     25	const int *def;
     26	unsigned int cnt;
     27};
     28
     29
     30static const int routing_scheme1[] = {
     31	[PVR2_CVAL_INPUT_TV] = 2,  /* 1 or 2 seems to work here */
     32	[PVR2_CVAL_INPUT_RADIO] = 2,
     33	[PVR2_CVAL_INPUT_COMPOSITE] = 0,
     34	[PVR2_CVAL_INPUT_SVIDEO] =  0,
     35};
     36
     37static const struct routing_scheme routing_def1 = {
     38	.def = routing_scheme1,
     39	.cnt = ARRAY_SIZE(routing_scheme1),
     40};
     41
     42static const struct routing_scheme *routing_schemes[] = {
     43	[PVR2_ROUTING_SCHEME_ONAIR] = &routing_def1,
     44};
     45
     46
     47void pvr2_cs53l32a_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
     48{
     49	if (hdw->input_dirty || hdw->force_dirty) {
     50		const struct routing_scheme *sp;
     51		unsigned int sid = hdw->hdw_desc->signal_routing_scheme;
     52		u32 input;
     53		pvr2_trace(PVR2_TRACE_CHIPS, "subdev v4l2 set_input(%d)",
     54			   hdw->input_val);
     55		sp = (sid < ARRAY_SIZE(routing_schemes)) ?
     56			routing_schemes[sid] : NULL;
     57		if ((sp == NULL) ||
     58		    (hdw->input_val < 0) ||
     59		    (hdw->input_val >= sp->cnt)) {
     60			pvr2_trace(PVR2_TRACE_ERROR_LEGS,
     61				   "*** WARNING *** subdev v4l2 set_input: Invalid routing scheme (%u) and/or input (%d)",
     62				   sid, hdw->input_val);
     63			return;
     64		}
     65		input = sp->def[hdw->input_val];
     66		sd->ops->audio->s_routing(sd, input, 0, 0);
     67	}
     68}