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. */
34void 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. */
62void 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}
120