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drivers
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pvrusb2
pvrusb2-cx2584x-v4l.c
Go to the documentation of this file.
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/*
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*
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*
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* Copyright (C) 2005 Mike Isely <
[email protected]
>
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* Copyright (C) 2004 Aurelien Alleaume <
[email protected]
>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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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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cx2584x, in kernels 2.6.16 or newer.
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*/
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#include "
pvrusb2-cx2584x-v4l.h
"
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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 <
media/cx25840.h
>
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#include <linux/videodev2.h>
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#include <
media/v4l2-common.h
>
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#include <linux/errno.h>
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struct
routing_scheme_item
{
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int
vid
;
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int
aud
;
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};
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struct
routing_scheme
{
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const
struct
routing_scheme_item
*
def
;
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unsigned
int
cnt
;
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};
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static
const
struct
routing_scheme_item
routing_scheme0[] = {
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[
PVR2_CVAL_INPUT_TV
] = {
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.vid =
CX25840_COMPOSITE7
,
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.aud =
CX25840_AUDIO8
,
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},
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[
PVR2_CVAL_INPUT_RADIO
] = {
/* Treat the same as composite */
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.vid =
CX25840_COMPOSITE3
,
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.aud =
CX25840_AUDIO_SERIAL
,
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},
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[
PVR2_CVAL_INPUT_COMPOSITE
] = {
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.vid =
CX25840_COMPOSITE3
,
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.aud =
CX25840_AUDIO_SERIAL
,
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},
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[
PVR2_CVAL_INPUT_SVIDEO
] = {
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.vid =
CX25840_SVIDEO1
,
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.aud =
CX25840_AUDIO_SERIAL
,
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},
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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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/* Specific to gotview device */
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static
const
struct
routing_scheme_item
routing_schemegv[] = {
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[
PVR2_CVAL_INPUT_TV
] = {
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.vid =
CX25840_COMPOSITE2
,
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.aud =
CX25840_AUDIO5
,
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},
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[
PVR2_CVAL_INPUT_RADIO
] = {
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/* line-in is used for radio and composite. A GPIO is
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used to switch between the two choices. */
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.vid =
CX25840_COMPOSITE1
,
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.aud =
CX25840_AUDIO_SERIAL
,
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},
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[
PVR2_CVAL_INPUT_COMPOSITE
] = {
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.vid =
CX25840_COMPOSITE1
,
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.aud =
CX25840_AUDIO_SERIAL
,
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},
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[
PVR2_CVAL_INPUT_SVIDEO
] = {
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.vid = (
CX25840_SVIDEO_LUMA3
|
CX25840_SVIDEO_CHROMA4
),
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.
aud
=
CX25840_AUDIO_SERIAL
,
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},
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};
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static
const
struct
routing_scheme
routing_defgv = {
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.def = routing_schemegv,
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.cnt =
ARRAY_SIZE
(routing_schemegv),
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};
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/* Specific to grabster av400 device */
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static
const
struct
routing_scheme_item
routing_schemeav400[] = {
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[
PVR2_CVAL_INPUT_COMPOSITE
] = {
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.vid =
CX25840_COMPOSITE1
,
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.aud =
CX25840_AUDIO_SERIAL
,
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},
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[
PVR2_CVAL_INPUT_SVIDEO
] = {
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.vid = (
CX25840_SVIDEO_LUMA2
|
CX25840_SVIDEO_CHROMA4
),
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.
aud
=
CX25840_AUDIO_SERIAL
,
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},
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};
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static
const
struct
routing_scheme
routing_defav400 = {
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.def = routing_schemeav400,
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.cnt =
ARRAY_SIZE
(routing_schemeav400),
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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_GOTVIEW
] = &routing_defgv,
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[
PVR2_ROUTING_SCHEME_AV400
] = &routing_defav400,
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};
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void
pvr2_cx25840_subdev_update
(
struct
pvr2_hdw
*hdw,
struct
v4l2_subdev
*
sd
)
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{
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pvr2_trace
(
PVR2_TRACE_CHIPS
,
"subdev cx2584x update..."
);
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if
(hdw->input_dirty || hdw->
force_dirty
) {
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enum
cx25840_video_input
vid_input;
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enum
cx25840_audio_input
aud_input;
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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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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 cx2584x set_input:"
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" Invalid routing scheme (%u)"
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" 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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vid_input = sp->
def
[hdw->input_val].vid;
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aud_input = sp->
def
[hdw->input_val].aud;
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pvr2_trace
(
PVR2_TRACE_CHIPS
,
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"subdev cx2584x set_input vid=0x%x aud=0x%x"
,
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vid_input, aud_input);
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sd->
ops
->video->s_routing(sd, (
u32
)vid_input, 0, 0);
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sd->
ops
->audio->s_routing(sd, (
u32
)aud_input, 0, 0);
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}
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}
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/*
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Stuff for Emacs to see, in order to encourage consistent editing style:
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*** Local Variables: ***
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*** mode: c ***
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*** fill-column: 70 ***
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*** tab-width: 8 ***
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*** c-basic-offset: 8 ***
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*** End: ***
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*/
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