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/*
Audio/video-routing-related ivtv functions.
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "ivtv-driver.h"
#include "ivtv-i2c.h"
#include "ivtv-cards.h"
#include "ivtv-gpio.h"
#include "ivtv-routing.h"
#include <media/msp3400.h>
#include <media/i2c/m52790.h>
#include <media/i2c/upd64031a.h>
#include <media/i2c/upd64083.h>
/* Selects the audio input and output according to the current
settings. */
void ivtv_audio_set_io(struct ivtv *itv)
{
const struct ivtv_card_audio_input *in;
u32 input, output = 0;
/* Determine which input to use */
if (test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags))
in = &itv->card->radio_input;
else
in = &itv->card->audio_inputs[itv->audio_input];
/* handle muxer chips */
input = in->muxer_input;
if (itv->card->hw_muxer & IVTV_HW_M52790)
output = M52790_OUT_STEREO;
v4l2_subdev_call(itv->sd_muxer, audio, s_routing,
input, output, 0);
input = in->audio_input;
output = 0;
if (itv->card->hw_audio & IVTV_HW_MSP34XX)
output = MSP_OUTPUT(MSP_SC_IN_DSP_SCART1);
ivtv_call_hw(itv, itv->card->hw_audio, audio, s_routing,
input, output, 0);
}
/* Selects the video input and output according to the current
settings. */
void ivtv_video_set_io(struct ivtv *itv)
{
int inp = itv->active_input;
u32 input;
u32 type;
v4l2_subdev_call(itv->sd_video, video, s_routing,
itv->card->video_inputs[inp].video_input, 0, 0);
type = itv->card->video_inputs[inp].video_type;
if (type == IVTV_CARD_INPUT_VID_TUNER) {
input = 0; /* Tuner */
} else if (type < IVTV_CARD_INPUT_COMPOSITE1) {
input = 2; /* S-Video */
} else {
input = 1; /* Composite */
}
if (itv->card->hw_video & IVTV_HW_GPIO)
ivtv_call_hw(itv, IVTV_HW_GPIO, video, s_routing,
input, 0, 0);
if (itv->card->hw_video & IVTV_HW_UPD64031A) {
if (type == IVTV_CARD_INPUT_VID_TUNER ||
type >= IVTV_CARD_INPUT_COMPOSITE1) {
/* Composite: GR on, connect to 3DYCS */
input = UPD64031A_GR_ON | UPD64031A_3DYCS_COMPOSITE;
} else {
/* S-Video: GR bypassed, turn it off */
input = UPD64031A_GR_OFF | UPD64031A_3DYCS_DISABLE;
}
input |= itv->card->gr_config;
ivtv_call_hw(itv, IVTV_HW_UPD64031A, video, s_routing,
input, 0, 0);
}
if (itv->card->hw_video & IVTV_HW_UPD6408X) {
input = UPD64083_YCS_MODE;
if (type > IVTV_CARD_INPUT_VID_TUNER &&
type < IVTV_CARD_INPUT_COMPOSITE1) {
/* S-Video uses YCNR mode and internal Y-ADC, the
upd64031a is not used. */
input |= UPD64083_YCNR_MODE;
}
else if (itv->card->hw_video & IVTV_HW_UPD64031A) {
/* Use upd64031a output for tuner and
composite(CX23416GYC only) inputs */
if (type == IVTV_CARD_INPUT_VID_TUNER ||
itv->card->type == IVTV_CARD_CX23416GYC) {
input |= UPD64083_EXT_Y_ADC;
}
}
ivtv_call_hw(itv, IVTV_HW_UPD6408X, video, s_routing,
input, 0, 0);
}
}
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