pvrusb2-cx2584x-v4l.c

  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}