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