Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
[sfrench/cifs-2.6.git] / drivers / media / pci / ivtv / ivtv-routing.c
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         u32 input, output = 0;
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         input = in->muxer_input;
47         if (itv->card->hw_muxer & IVTV_HW_M52790)
48                 output = M52790_OUT_STEREO;
49         v4l2_subdev_call(itv->sd_muxer, audio, s_routing,
50                         input, output, 0);
51
52         input = in->audio_input;
53         output = 0;
54         if (itv->card->hw_audio & IVTV_HW_MSP34XX)
55                 output = MSP_OUTPUT(MSP_SC_IN_DSP_SCART1);
56         ivtv_call_hw(itv, itv->card->hw_audio, audio, s_routing,
57                         input, output, 0);
58 }
59
60 /* Selects the video input and output according to the current
61    settings. */
62 void ivtv_video_set_io(struct ivtv *itv)
63 {
64         int inp = itv->active_input;
65         u32 input;
66         u32 type;
67
68         v4l2_subdev_call(itv->sd_video, video, s_routing,
69                 itv->card->video_inputs[inp].video_input, 0, 0);
70
71         type = itv->card->video_inputs[inp].video_type;
72
73         if (type == IVTV_CARD_INPUT_VID_TUNER) {
74                 input = 0;  /* Tuner */
75         } else if (type < IVTV_CARD_INPUT_COMPOSITE1) {
76                 input = 2;  /* S-Video */
77         } else {
78                 input = 1;  /* Composite */
79         }
80
81         if (itv->card->hw_video & IVTV_HW_GPIO)
82                 ivtv_call_hw(itv, IVTV_HW_GPIO, video, s_routing,
83                                 input, 0, 0);
84
85         if (itv->card->hw_video & IVTV_HW_UPD64031A) {
86                 if (type == IVTV_CARD_INPUT_VID_TUNER ||
87                     type >= IVTV_CARD_INPUT_COMPOSITE1) {
88                         /* Composite: GR on, connect to 3DYCS */
89                         input = UPD64031A_GR_ON | UPD64031A_3DYCS_COMPOSITE;
90                 } else {
91                         /* S-Video: GR bypassed, turn it off */
92                         input = UPD64031A_GR_OFF | UPD64031A_3DYCS_DISABLE;
93                 }
94                 input |= itv->card->gr_config;
95
96                 ivtv_call_hw(itv, IVTV_HW_UPD64031A, video, s_routing,
97                                 input, 0, 0);
98         }
99
100         if (itv->card->hw_video & IVTV_HW_UPD6408X) {
101                 input = UPD64083_YCS_MODE;
102                 if (type > IVTV_CARD_INPUT_VID_TUNER &&
103                     type < IVTV_CARD_INPUT_COMPOSITE1) {
104                         /* S-Video uses YCNR mode and internal Y-ADC, the
105                            upd64031a is not used. */
106                         input |= UPD64083_YCNR_MODE;
107                 }
108                 else if (itv->card->hw_video & IVTV_HW_UPD64031A) {
109                         /* Use upd64031a output for tuner and
110                            composite(CX23416GYC only) inputs */
111                         if (type == IVTV_CARD_INPUT_VID_TUNER ||
112                             itv->card->type == IVTV_CARD_CX23416GYC) {
113                                 input |= UPD64083_EXT_Y_ADC;
114                         }
115                 }
116                 ivtv_call_hw(itv, IVTV_HW_UPD6408X, video, s_routing,
117                                 input, 0, 0);
118         }
119 }