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}
163