1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3    Audio/video-routing-related ivtv functions.
4    Copyright (C) 2003-2004  Kevin Thayer <nufan_wfk at yahoo.com>
5    Copyright (C) 2005-2007  Hans Verkuil <hverkuil@xs4all.nl>
6
7 */
8
9#include "ivtv-driver.h"
10#include "ivtv-i2c.h"
11#include "ivtv-cards.h"
12#include "ivtv-gpio.h"
13#include "ivtv-routing.h"
14
15#include <media/drv-intf/msp3400.h>
16#include <media/i2c/m52790.h>
17#include <media/i2c/upd64031a.h>
18#include <media/i2c/upd64083.h>
19
20/* Selects the audio input and output according to the current
21   settings. */
22void ivtv_audio_set_io(struct ivtv *itv)
23{
24	const struct ivtv_card_audio_input *in;
25	u32 input, output = 0;
26
27	/* Determine which input to use */
28	if (test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags))
29		in = &itv->card->radio_input;
30	else
31		in = &itv->card->audio_inputs[itv->audio_input];
32
33	/* handle muxer chips */
34	input = in->muxer_input;
35	if (itv->card->hw_muxer & IVTV_HW_M52790)
36		output = M52790_OUT_STEREO;
37	v4l2_subdev_call(itv->sd_muxer, audio, s_routing,
38			input, output, 0);
39
40	input = in->audio_input;
41	output = 0;
42	if (itv->card->hw_audio & IVTV_HW_MSP34XX)
43		output = MSP_OUTPUT(MSP_SC_IN_DSP_SCART1);
44	ivtv_call_hw(itv, itv->card->hw_audio, audio, s_routing,
45			input, output, 0);
46}
47
48/* Selects the video input and output according to the current
49   settings. */
50void ivtv_video_set_io(struct ivtv *itv)
51{
52	int inp = itv->active_input;
53	u32 input;
54	u32 type;
55
56	v4l2_subdev_call(itv->sd_video, video, s_routing,
57		itv->card->video_inputs[inp].video_input, 0, 0);
58
59	type = itv->card->video_inputs[inp].video_type;
60
61	if (type == IVTV_CARD_INPUT_VID_TUNER) {
62		input = 0;  /* Tuner */
63	} else if (type < IVTV_CARD_INPUT_COMPOSITE1) {
64		input = 2;  /* S-Video */
65	} else {
66		input = 1;  /* Composite */
67	}
68
69	if (itv->card->hw_video & IVTV_HW_GPIO)
70		ivtv_call_hw(itv, IVTV_HW_GPIO, video, s_routing,
71				input, 0, 0);
72
73	if (itv->card->hw_video & IVTV_HW_UPD64031A) {
74		if (type == IVTV_CARD_INPUT_VID_TUNER ||
75		    type >= IVTV_CARD_INPUT_COMPOSITE1) {
76			/* Composite: GR on, connect to 3DYCS */
77			input = UPD64031A_GR_ON | UPD64031A_3DYCS_COMPOSITE;
78		} else {
79			/* S-Video: GR bypassed, turn it off */
80			input = UPD64031A_GR_OFF | UPD64031A_3DYCS_DISABLE;
81		}
82		input |= itv->card->gr_config;
83
84		ivtv_call_hw(itv, IVTV_HW_UPD64031A, video, s_routing,
85				input, 0, 0);
86	}
87
88	if (itv->card->hw_video & IVTV_HW_UPD6408X) {
89		input = UPD64083_YCS_MODE;
90		if (type > IVTV_CARD_INPUT_VID_TUNER &&
91		    type < IVTV_CARD_INPUT_COMPOSITE1) {
92			/* S-Video uses YCNR mode and internal Y-ADC, the
93			   upd64031a is not used. */
94			input |= UPD64083_YCNR_MODE;
95		}
96		else if (itv->card->hw_video & IVTV_HW_UPD64031A) {
97			/* Use upd64031a output for tuner and
98			   composite(CX23416GYC only) inputs */
99			if (type == IVTV_CARD_INPUT_VID_TUNER ||
100			    itv->card->type == IVTV_CARD_CX23416GYC) {
101				input |= UPD64083_EXT_Y_ADC;
102			}
103		}
104		ivtv_call_hw(itv, IVTV_HW_UPD6408X, video, s_routing,
105				input, 0, 0);
106	}
107}
108