1 /*
2 Audio/video-routing-related ivtv functions.
3 Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
4 Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21 #include "ivtv-driver.h"
22 #include "ivtv-i2c.h"
23 #include "ivtv-cards.h"
24 #include "ivtv-gpio.h"
25 #include "ivtv-routing.h"
26
27 #include <media/msp3400.h>
28 #include <media/m52790.h>
29 #include <media/upd64031a.h>
30 #include <media/upd64083.h>
31
32 /* Selects the audio input and output according to the current
33 settings. */
34 void ivtv_audio_set_io(struct ivtv *itv)
35 {
36 const struct ivtv_card_audio_input *in;
37 struct v4l2_routing route;
38
39 /* Determine which input to use */
40 if (test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags))
41 in = &itv->card->radio_input;
42 else
43 in = &itv->card->audio_inputs[itv->audio_input];
44
45 /* handle muxer chips */
46 route.input = in->muxer_input;
47 route.output = 0;
48 if (itv->card->hw_muxer & IVTV_HW_M52790)
49 route.output = M52790_OUT_STEREO;
50 ivtv_i2c_hw(itv, itv->card->hw_muxer, VIDIOC_INT_S_AUDIO_ROUTING, &route);
51
52 route.input = in->audio_input;
53 route.output = 0;
54 if (itv->card->hw_audio & IVTV_HW_MSP34XX)
55 route.output = MSP_OUTPUT(MSP_SC_IN_DSP_SCART1);
56 ivtv_i2c_hw(itv, itv->card->hw_audio, VIDIOC_INT_S_AUDIO_ROUTING, &route);
57 }
58
59 /* Selects the video input and output according to the current
60 settings. */
61 void ivtv_video_set_io(struct ivtv *itv)
62 {
63 struct v4l2_routing route;
64 int inp = itv->active_input;
65 u32 type;
66
67 route.input = itv->card->video_inputs[inp].video_input;
68 route.output = 0;
69 itv->video_dec_func(itv, VIDIOC_INT_S_VIDEO_ROUTING, &route);
70
71 type = itv->card->video_inputs[inp].video_type;
72
73 if (type == IVTV_CARD_INPUT_VID_TUNER) {
74 route.input = 0; /* Tuner */
75 } else if (type < IVTV_CARD_INPUT_COMPOSITE1) {
76 route.input = 2; /* S-Video */
77 } else {
78 route.input = 1; /* Composite */
79 }
80
81 if (itv->card->hw_video & IVTV_HW_GPIO)
82 ivtv_gpio(itv, VIDIOC_INT_S_VIDEO_ROUTING, &route);
83
84 if (itv->card->hw_video & IVTV_HW_UPD64031A) {
85 if (type == IVTV_CARD_INPUT_VID_TUNER ||
86 type >= IVTV_CARD_INPUT_COMPOSITE1) {
87 /* Composite: GR on, connect to 3DYCS */
88 route.input = UPD64031A_GR_ON | UPD64031A_3DYCS_COMPOSITE;
89 } else {
90 /* S-Video: GR bypassed, turn it off */
91 route.input = UPD64031A_GR_OFF | UPD64031A_3DYCS_DISABLE;
92 }
93 route.input |= itv->card->gr_config;
94
95 ivtv_upd64031a(itv, VIDIOC_INT_S_VIDEO_ROUTING, &route);
96 }
97
98 if (itv->card->hw_video & IVTV_HW_UPD6408X) {
99 route.input = UPD64083_YCS_MODE;
100 if (type > IVTV_CARD_INPUT_VID_TUNER &&
101 type < IVTV_CARD_INPUT_COMPOSITE1) {
102 /* S-Video uses YCNR mode and internal Y-ADC, the upd64031a
103 is not used. */
104 route.input |= UPD64083_YCNR_MODE;
105 }
106 else if (itv->card->hw_video & IVTV_HW_UPD64031A) {
107 /* Use upd64031a output for tuner and composite(CX23416GYC only) inputs */
108 if ((type == IVTV_CARD_INPUT_VID_TUNER)||
109 (itv->card->type == IVTV_CARD_CX23416GYC)) {
110 route.input |= UPD64083_EXT_Y_ADC;
111 }
112 }
113 ivtv_upd64083(itv, VIDIOC_INT_S_VIDEO_ROUTING, &route);
114 }
115 }
116
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