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-audio.c (1888B)

      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#include "pvrusb2-audio.h"
      9#include "pvrusb2-hdw-internal.h"
     10#include "pvrusb2-debug.h"
     11#include <linux/videodev2.h>
     12#include <media/drv-intf/msp3400.h>
     13#include <media/v4l2-common.h>
     14
     15
     16struct routing_scheme {
     17	const int *def;
     18	unsigned int cnt;
     19};
     20
     21static const int routing_scheme0[] = {
     22	[PVR2_CVAL_INPUT_TV]        = MSP_INPUT_DEFAULT,
     23	[PVR2_CVAL_INPUT_RADIO]     = MSP_INPUT(MSP_IN_SCART2,
     24						MSP_IN_TUNER1,
     25						MSP_DSP_IN_SCART,
     26						MSP_DSP_IN_SCART),
     27	[PVR2_CVAL_INPUT_COMPOSITE] = MSP_INPUT(MSP_IN_SCART1,
     28						MSP_IN_TUNER1,
     29						MSP_DSP_IN_SCART,
     30						MSP_DSP_IN_SCART),
     31	[PVR2_CVAL_INPUT_SVIDEO]    = MSP_INPUT(MSP_IN_SCART1,
     32						MSP_IN_TUNER1,
     33						MSP_DSP_IN_SCART,
     34						MSP_DSP_IN_SCART),
     35};
     36
     37static const struct routing_scheme routing_def0 = {
     38	.def = routing_scheme0,
     39	.cnt = ARRAY_SIZE(routing_scheme0),
     40};
     41
     42static const struct routing_scheme *routing_schemes[] = {
     43	[PVR2_ROUTING_SCHEME_HAUPPAUGE] = &routing_def0,
     44};
     45
     46void pvr2_msp3400_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
     47{
     48	if (hdw->input_dirty || hdw->force_dirty) {
     49		const struct routing_scheme *sp;
     50		unsigned int sid = hdw->hdw_desc->signal_routing_scheme;
     51		u32 input;
     52
     53		pvr2_trace(PVR2_TRACE_CHIPS, "subdev msp3400 v4l2 set_stereo");
     54		sp = (sid < ARRAY_SIZE(routing_schemes)) ?
     55			routing_schemes[sid] : NULL;
     56
     57		if ((sp != NULL) &&
     58		    (hdw->input_val >= 0) &&
     59		    (hdw->input_val < sp->cnt)) {
     60			input = sp->def[hdw->input_val];
     61		} else {
     62			pvr2_trace(PVR2_TRACE_ERROR_LEGS,
     63				   "*** WARNING *** subdev msp3400 set_input: Invalid routing scheme (%u) and/or input (%d)",
     64				   sid, hdw->input_val);
     65			return;
     66		}
     67		sd->ops->audio->s_routing(sd, input,
     68			MSP_OUTPUT(MSP_SC_IN_DSP_SCART1), 0);
     69	}
     70}