cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

pvrusb2-cx2584x-v4l.c (4240B)

      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   cx2584x, in kernels 2.6.16 or newer.
     12
     13*/
     14
     15#include "pvrusb2-cx2584x-v4l.h"
     16
     17
     18#include "pvrusb2-hdw-internal.h"
     19#include "pvrusb2-debug.h"
     20#include <media/drv-intf/cx25840.h>
     21#include <linux/videodev2.h>
     22#include <media/v4l2-common.h>
     23#include <linux/errno.h>
     24
     25
     26struct routing_scheme_item {
     27	int vid;
     28	int aud;
     29};
     30
     31struct routing_scheme {
     32	const struct routing_scheme_item *def;
     33	unsigned int cnt;
     34};
     35
     36static const struct routing_scheme_item routing_scheme0[] = {
     37	[PVR2_CVAL_INPUT_TV] = {
     38		.vid = CX25840_COMPOSITE7,
     39		.aud = CX25840_AUDIO8,
     40	},
     41	[PVR2_CVAL_INPUT_RADIO] = { /* Treat the same as composite */
     42		.vid = CX25840_COMPOSITE3,
     43		.aud = CX25840_AUDIO_SERIAL,
     44	},
     45	[PVR2_CVAL_INPUT_COMPOSITE] = {
     46		.vid = CX25840_COMPOSITE3,
     47		.aud = CX25840_AUDIO_SERIAL,
     48	},
     49	[PVR2_CVAL_INPUT_SVIDEO] = {
     50		.vid = CX25840_SVIDEO1,
     51		.aud = CX25840_AUDIO_SERIAL,
     52	},
     53};
     54
     55static const struct routing_scheme routing_def0 = {
     56	.def = routing_scheme0,
     57	.cnt = ARRAY_SIZE(routing_scheme0),
     58};
     59
     60/* Specific to gotview device */
     61static const struct routing_scheme_item routing_schemegv[] = {
     62	[PVR2_CVAL_INPUT_TV] = {
     63		.vid = CX25840_COMPOSITE2,
     64		.aud = CX25840_AUDIO5,
     65	},
     66	[PVR2_CVAL_INPUT_RADIO] = {
     67		/* line-in is used for radio and composite.  A GPIO is
     68		   used to switch between the two choices. */
     69		.vid = CX25840_COMPOSITE1,
     70		.aud = CX25840_AUDIO_SERIAL,
     71	},
     72	[PVR2_CVAL_INPUT_COMPOSITE] = {
     73		.vid = CX25840_COMPOSITE1,
     74		.aud = CX25840_AUDIO_SERIAL,
     75	},
     76	[PVR2_CVAL_INPUT_SVIDEO] = {
     77		.vid = (CX25840_SVIDEO_LUMA3|CX25840_SVIDEO_CHROMA4),
     78		.aud = CX25840_AUDIO_SERIAL,
     79	},
     80};
     81
     82static const struct routing_scheme routing_defgv = {
     83	.def = routing_schemegv,
     84	.cnt = ARRAY_SIZE(routing_schemegv),
     85};
     86
     87/* Specific to grabster av400 device */
     88static const struct routing_scheme_item routing_schemeav400[] = {
     89	[PVR2_CVAL_INPUT_COMPOSITE] = {
     90		.vid = CX25840_COMPOSITE1,
     91		.aud = CX25840_AUDIO_SERIAL,
     92	},
     93	[PVR2_CVAL_INPUT_SVIDEO] = {
     94		.vid = (CX25840_SVIDEO_LUMA2|CX25840_SVIDEO_CHROMA4),
     95		.aud = CX25840_AUDIO_SERIAL,
     96	},
     97};
     98
     99static const struct routing_scheme routing_defav400 = {
    100	.def = routing_schemeav400,
    101	.cnt = ARRAY_SIZE(routing_schemeav400),
    102};
    103
    104static const struct routing_scheme_item routing_scheme160xxx[] = {
    105	[PVR2_CVAL_INPUT_TV] = {
    106		.vid = CX25840_COMPOSITE7,
    107		.aud = CX25840_AUDIO8,
    108	},
    109	[PVR2_CVAL_INPUT_RADIO] = {
    110		.vid = CX25840_COMPOSITE4,
    111		.aud = CX25840_AUDIO6,
    112	},
    113	[PVR2_CVAL_INPUT_COMPOSITE] = {
    114		.vid = CX25840_COMPOSITE3,
    115		.aud = CX25840_AUDIO_SERIAL,
    116	},
    117	[PVR2_CVAL_INPUT_SVIDEO] = {
    118		.vid = CX25840_SVIDEO1,
    119		.aud = CX25840_AUDIO_SERIAL,
    120	},
    121};
    122
    123static const struct routing_scheme routing_def160xxx = {
    124	.def = routing_scheme160xxx,
    125	.cnt = ARRAY_SIZE(routing_scheme160xxx),
    126};
    127
    128static const struct routing_scheme *routing_schemes[] = {
    129	[PVR2_ROUTING_SCHEME_HAUPPAUGE] = &routing_def0,
    130	[PVR2_ROUTING_SCHEME_GOTVIEW] = &routing_defgv,
    131	[PVR2_ROUTING_SCHEME_AV400] = &routing_defav400,
    132	[PVR2_ROUTING_SCHEME_HAUP160XXX] = &routing_def160xxx,
    133};
    134
    135void pvr2_cx25840_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
    136{
    137	pvr2_trace(PVR2_TRACE_CHIPS, "subdev cx2584x update...");
    138	if (hdw->input_dirty || hdw->force_dirty) {
    139		enum cx25840_video_input vid_input;
    140		enum cx25840_audio_input aud_input;
    141		const struct routing_scheme *sp;
    142		unsigned int sid = hdw->hdw_desc->signal_routing_scheme;
    143
    144		sp = (sid < ARRAY_SIZE(routing_schemes)) ?
    145			routing_schemes[sid] : NULL;
    146		if ((sp == NULL) ||
    147		    (hdw->input_val < 0) ||
    148		    (hdw->input_val >= sp->cnt)) {
    149			pvr2_trace(PVR2_TRACE_ERROR_LEGS,
    150				   "*** WARNING *** subdev cx2584x set_input: Invalid routing scheme (%u) and/or input (%d)",
    151				   sid, hdw->input_val);
    152			return;
    153		}
    154		vid_input = sp->def[hdw->input_val].vid;
    155		aud_input = sp->def[hdw->input_val].aud;
    156		pvr2_trace(PVR2_TRACE_CHIPS,
    157			   "subdev cx2584x set_input vid=0x%x aud=0x%x",
    158			   vid_input, aud_input);
    159		sd->ops->video->s_routing(sd, (u32)vid_input, 0, 0);
    160		sd->ops->audio->s_routing(sd, (u32)aud_input, 0, 0);
    161	}
    162}